U.S. patent application number 11/123354 was filed with the patent office on 2005-09-22 for flame resistant fabrics with improved aesthetics and comfort, and method of making same.
This patent application is currently assigned to Milliken & Company. Invention is credited to DeMott, Roy P., Emery, Nathan B., Glenn, Joseph B., McKee, Paul A., Richardson, Mathias.
Application Number | 20050208856 11/123354 |
Document ID | / |
Family ID | 31494751 |
Filed Date | 2005-09-22 |
United States Patent
Application |
20050208856 |
Kind Code |
A1 |
McKee, Paul A. ; et
al. |
September 22, 2005 |
Flame resistant fabrics with improved aesthetics and comfort, and
method of making same
Abstract
Fabrics having improved aesthetic characteristics in addition to
good FR characteristics and strength are described, as well as a
method for making the fabrics. The fabrics are made by subjecting a
fabric containing inherently flame resistant fibers to a fluid
treatment process such that a fabric with good comfort and
aesthetic characteristics is formed. In one form of the invention,
the fabric comprises plied yarns, and the fluid treatment process
serves to separate the plies from each other. The fabrics have a
soft hand, good protective characteristics, good strength and
durability, as well as good wicking and soil release
characteristics.
Inventors: |
McKee, Paul A.;
(Spartanburg, SC) ; Glenn, Joseph B.; (Belton,
SC) ; Richardson, Mathias; (Pendleton, SC) ;
Emery, Nathan B.; (Spartanburg, SC) ; DeMott, Roy
P.; (Spartanburg, SC) |
Correspondence
Address: |
Sara M. Current
Legal Department, M-495
Milliken & Company
PO Box 1926
Spartanburg
SC
29304
US
|
Assignee: |
Milliken & Company
|
Family ID: |
31494751 |
Appl. No.: |
11/123354 |
Filed: |
May 6, 2005 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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11123354 |
May 6, 2005 |
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10214954 |
Aug 8, 2002 |
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Current U.S.
Class: |
442/302 ;
156/285; 442/189; 442/197; 442/198; 442/239; 442/240; 442/301 |
Current CPC
Class: |
Y10T 442/3472 20150401;
A41D 31/08 20190201; Y10T 442/30 20150401; Y10T 442/3065 20150401;
Y10T 442/3138 20150401; D10B 2331/021 20130101; Y10T 442/348
20150401; D03D 15/513 20210101; Y10T 442/313 20150401; Y10T
442/3976 20150401; Y10T 442/3984 20150401 |
Class at
Publication: |
442/302 ;
442/239; 442/240; 442/189; 442/197; 442/198; 442/301; 156/285 |
International
Class: |
D03D 015/12 |
Claims
We claim:
1. A woven flame resistant fabric comprising a plurality of
multi-ply inherently flame resistant yarns, wherein at least a
portion of the individual plies of said multi-ply inherently flame
resistant yarns are separated from each other.
2. A woven flame resistant fabric according to claim 1, wherein
said inherently flame resistant yarns comprise fibers selected from
the group consisting of meta-aramids, para-aramids, melamines,
aramid fibers, fluoropolymers and copolymers thereof,
chloropolymers, polybenzimidazole, polyimides, polyamideimides,
partially oxidized polyacrylonitriles, novoloids, poly(p-phenylene
benzobisoazoles), poly(p-phenylene benzothiazoles), polyphenylene
sulfides, flame retardant viscose rayons, polyvinyl chloride
homopolymers and copolymers thereof, polyetheretherketones,
polyketones, polyetherimides, polylactides, melamine fibers, and
combinations thereof.
3. A woven flame resistant fabric according to claim 1, wherein
said yarns define a plurality of fiber tangles comprised of fibers
that are substantially intact and undamaged extending outwardly
from at least one surface of the fabric.
4. A woven flame resistant fabric according to claim 1, wherein
said fabric is woven in a construction that is selected from the
group consisting of plain weave, twill weave, basket weave, oxford
weave, satin weave, and jacquard weave.
5. A woven flame resistant fabric according to claim 1, wherein
said woven fabric comprises warp yarns and filling yarns, and at
least a plurality of said warp yarns are spun yarns.
6. A woven flame resistant fabric according to claim 5, wherein
said at least a plurality of said filling yarns are spun yarns.
7. A woven flame resistant fabric according to claim 1, wherein
said fabric comprises at least about 65% inherently flame resistant
yarns.
8. A woven flame resistant fabric according to claim 1, wherein
said fabric consists essentially of inherently flame resistant
yarns.
9. A woven flame resistant fabric according to claim 1, wherein at
least a portion of the individual plies that are separated from
each other comprise individual fibers that are entangled with the
fibers forming another individual ply.
10. A flame resistant fabric comprising a plurality of spun yarns
comprising inherently flame resistant fibers, wherein said fabric
has first and second surfaces, and at least one of said surfaces
comprises a plurality of fiber tangles comprised of fibers that are
substantially intact and undamaged extending outwardly from said at
least one surface of the fabric.
11. A fabric according to claim 10, wherein at least a plurality of
said spun yarns comprise a plurality of plies, and wherein said
plies are at least partially separated from each other.
12. A fabric comprising at least about 65% inherently flame
resistant fibers wherein said fabric has a surface that has been
chemically modified to achieve an ATPV rating of about 4 or
greater.
13. The fabric according to claim 12, wherein said fabric comprises
at least about 90% inherently flame resistant fibers.
14. The fabric according to claim 12, wherein said fabric has a
soil release rating of about 2.5 or greater when soiled at 0 washes
and tested after one wash, according to AATCC 130-1995 Test
Method.
15. The fabric according to claim 12, wherein said fabric has a
soil release rating of about 3.0 or greater when soiled at 0 washes
and tested after 1 wash, according to AATCC 130-1995 Test
Method.
16. The fabric according to claim 12, wherein said fabric has a
Drop Disappearance of about 2 seconds or less.
17. The fabric according to claim 12, wherein said fabric has been
chemically modified through the application of about 0.25-5% owf of
ethoxylated polyamide and about 0.25-5% owf of ethoxylated
polyester.
18. A woven flame resistant fabric comprising at least about 65% of
inherently flame resistant fibers, wherein said fabric is defined
by a plurality of interwoven warp and filling yarns, and a
plurality of fibers forming said warp and filling yarns are
entangled with each other to an extent sufficient to achieve a Warp
Fray Value of about 10% or less when tested prior to washing.
19. The fabric according to claim 18, wherein said fabric has a
warp fray of less than about 5 when tested after 125 industrial
launderings.
20. The fabric according to claim 18, wherein said fabric comprises
a plurality of fiber tangles comprised of fibers that are
substantially intact and undamaged extending outwardly from a
surface of said fabric.
21. A fabric comprising at least about 65% inherently flame
resistant fabrics, wherein said fabric has a Handle-o-meter reading
of about 90 grams force or less in its as-produced form.
22. The fabric according to claim 21, wherein said fabric comprises
at least about 90% inherently flame resistant fibers.
23. The fabric according to claim 21, wherein said fabric comprises
a woven fabric having a weight of about 2 oz/sq yd to about 12
oz/sq yd.
24. A woven fabric comprising at least about 65% inherently flame
resistant fibers, wherein said fabric has a chemically modified
surface and a bending modulus of about 0.6 or less when tested in a
warp direction and in an as-produced form.
25. The woven fabric according to claim 24, wherein said fabric
comprises at least about 90% inherently flame resistant fibers.
26. The woven fabric according to claim 24, wherein said fabric has
a weight of about 2 to about 12 oz/sq yd.
27. The woven fabric according to claim 24, wherein said fabric has
been chemically modified through the application of an ethoxylated
polyamide and an ethoxylated polyester.
28. A woven fabric having a weight of about 4 to about 8 oz/sq yd,
said fabric comprising at least about 90% inherently flame
resistant fibers, wherein said fabric has a Drape Coefficient of
about 60 or less.
29. The woven fabric according to claim 28, wherein said fabric has
a Drape Coefficient of about 40 or less.
30. A woven fabric comprising at least about 65% inherently flame
resistant fibers and a weight of about 4 to about 8 oz/sq yd,
wherein said fabric has an ATPV rating of about 6 calories/cm.sup.2
or greater.
31. A woven fabric according to claim 30, wherein said fabric has
been chemically treated to achieve a Vertical Wicking of about 5
inches or greater when tested in its as-produced form.
32. A fabric comprising at least about 65% inherently flame
resistant fibers and having a weight of about 4 to about 8 oz/sq
yd, an ATPV of about 4 or greater and a DMIN of about 0.22 or less
in its as-produced form.
33. The fabric according to claim 32, wherein said fabric has a
DMIN of about 0.21 or less in its as-produced form.
34. The fabric according to claim 32, wherein said fabric comprises
at least about 90% inherently flame resistant fibers.
35. A fabric having a weight of about 4 to about 8 oz/sq yd and
comprising at least about 90% of inherently flame resistant fibers,
wherein said fabric has a WC of about 0.35 or greater.
36. The fabric according to claim 35, wherein said fabric has a
plurality of fiber tangles comprised of fibers that are
substantially intact and undamaged extending outwardly from at
least one surface of the fabric.
37. A fabric comprising at least about 65% inherently flame
resistant fibers, wherein said fabric has treatment of ethoxylated
polyamide in an amount of about 0.25-5% owf and an ethoxylated
polyester in an amount of about 0.25-5% owf.
38. The fabric according to claim 37, wherein said fabric has a
soil release rating of about 2.5 or greater when soiled at 0 washes
and tested after one wash in accordance with AATCC 130-1995 (corn
oil).
39. The fabric according to claim 37, wherein said fabric is a
woven fabric about 2 to about 12 oz/sq yd in weight, and said
fabric has a soil release rating of about 3 or greater when soiled
at 0 washes and tested after one wash in accordance with AATCC
130-1995 (corn oil.)
40. A fabric comprising at least about 65% inherently flame
resistant fibers and a chemical wicking treatment, wherein said
fabric has a Drop Disappearance of about 2 seconds or less when
tested in an unwashed condition.
41. The fabric according to claim 40, wherein said fabric has a
Drop Disappearance of about 1 second or less.
42. The fabric according to claim 40, wherein said fabric has a
Drop Disappearance of about 2 seconds or less after 50 washes
43. The fabric according to claim 40, wherein said fabric has a
Drop Disappearance of about 3 seconds or less after 125 washes.
44. A fabric having a weight of about 2 to about 12 oz/sq yd and at
least about 65% inherently flame resistant fibers, wherein a
plurality of said fibers are entangled with each other, such that
said fabric has an air permeability of about 70 cfm or greater when
tested according to AATCC Test Method 737-1996, and an ATPV of
about 6 or greater.
45. A fabric having a weight of about 4 to about 8 oz/sq yd, said
fabric comprising at least about 90% inherently FR fibers, wherein
said fabric has a soil release rating of about 2.5 or greater for
corn oil when tested according to AATCC Test Method 130-1995 in an
unwashed condition, and a vertical wicking of about 5 inches or
greater.
46. A fabric according to claim 45, wherein said fabric has a soil
release rating of about 3.5 or greater for corn oil when tested
according to AATCC Test Method 130-95 when soilded at 48 washes and
tested after 49 washes.
47. A fabric according to claim 45, wherein said fabric comprises
inherently flame resistant fibers selected from the group
consisting of meta-aramids, para-aramids, melamines, aramid fibers,
fluoropolymers and copolymers thereof, chloropolymers,
polybenzimidazole, polyimides, polyamideimides, partially oxidized
polyacrylonitriles, novoloids, poly(p-phenylene benzobisoazoles),
poly(p-phenylene benzothiazoles), polyphenylene sulfides, flame
retardant viscose rayons, polyvinyl chloride homopolymers and
copolymers thereof, polyetheretherketones, polyketones,
polyetherimides, polylactides, melamine fibers, and combinations
thereof.
48-51. (canceled)
52. A fabric made by the process of claim 48.
53-54. (canceled)
Description
BACKGROUND OF THE INVENTION
[0001] A variety of occupations require workers to come into close
contact with hot equipment, hot substances open flames, and
electric arcs and the like. For example, oil refinery, petro
chemical workers, electricians, military personnel, etc. typically
operate in such environments. In order to minimize their risk of
injury from the hot elements, such workers typically wear flame
resistant apparel.
[0002] Flame resistant garments are generally made from flame
resistant materials such as those made from aramid fibers
(including meta-aramids and para-aramids), melamine fibers, or
those treated with flame resistant "FR" chemistries. Prior
protective garments have focused strictly on flame resistant
protection and durability, since the garments must provide good
protection to the wearer, and must withstand hazardous
environments. In addition, because many garments are often
laundered under industrial wash conditions, they must be capable of
withstanding a number of such industrial launderings in order to
have an acceptable useful life. For example, it is generally
considered by the purchasers of these garments that the garments
must last through a minimum of 125 industrial launderings.
Therefore, the prior garments, which have tended to perform
relatively well from the standpoint of protection and durability,
have been extremely deficient in aesthetic characteristics such as
wearer comfort. For example, they are known to be stiff and to have
a harsh handle, and they are generally considered to be hot and
uncomfortable to the wearers. Not only is the discomfort typically
associated with these garments a source of displeasure to the
wearers, but it may discourage them from wearing the equipment that
would optimize their protection, thereby jeopardizing their safety.
Furthermore, these garments are typically so uncomfortable as to
require an undergarment of some sort to protect the wearer's skin,
which can be undesirable when the garment is to be worn in hot
environments.
[0003] There are two general types of FR apparel fabrics currently
in the market. The first category is that of inherently flame
resistant fibers (such as aramids, melamines, etc.) and the second
category achieves flame resistance primarily through the subsequent
application of chemistry to the fiber. Fabrics of inherently FR
fibers are generally considered to provide greater durability,
while chemically-treated fabrics (such as FR cotton) are often
considered to provide a lesser degree of durability but at a lesser
degree of discomfort to the wearer.
[0004] Past attempts to improve the comfort of FR garments have
generally been directed to the garment construction, e.g. through
the provision of garment vents and the like. As will be appreciated
by those of ordinary skill in the art, the garment construction
modifications made to enhance comfort can have a negative effect on
wearer protection.
[0005] Therefore, a need exists for fabrics and garments that
provide a good degree of FR protection to users, while providing a
greater degree of user comfort and improved aesthetic
characteristics. In addition, a need exists for a method of
enhancing the aesthetic characteristics of FR fabrics and
garments.
SUMMARY
[0006] With the foregoing in mind, it is therefore an object of the
invention to provide flame resistant fabrics having improved wearer
comfort at comparable levels of FR protection and strength to
conventional FR fabrics.
[0007] It is also an object of the invention to provide FR fabrics
having improved aesthetics relative to commercially-available FR
fabrics, and in particular, relative to commercially-available
fabrics made from inherently FR fibers.
[0008] It is also an object of the invention to provide a method
for enhancing the comfort of FR fabrics, and for manufacturing FR
fabrics having good comfort and aesthetic characteristics in
combination with good strength and durability.
[0009] It is a further object of the invention to provide an FR
fabric having improved strength and moisture absorption with
improved cleanability and a reduced tendency for soil
redeposition.
[0010] The general predictors of how comfortable a fabric will be
to wear are the mechanical and surface properties of the fabric,
the freedom of movement it affords a wearer (e.g. by draping well
rather than being stiff), how well it manages moisture, and its air
permeability. In addition, how comfortable a wearer will perceive a
garment to be will also depend largely upon which part of the
wearer's body the garment is worn and the environment (e.g. hot or
cold, humid or dry, etc.) in which it is worn.
[0011] The present invention is directed to flame resistant fabrics
that provide good protection to the wearer from short exposure open
flame, and/or electric arc, while also providing enhanced
aesthetics. In particular, the fabrics of the invention have
superior hand, physical strength, durability, moisture transport,
and soil release, and are more comfortable to the wearer than
existing fabrics having comparable levels of FR protection.
[0012] In a preferred form of the invention, the fabric is a woven
fabric having a weight of about 2 to about 12 oz/sq yard, and more
preferably about 4 to about 8 oz/sq yard. In particular, fabrics in
these weight ranges are particularly good in apparel type
applications. The fabric can be of any desired weave construction,
including but not limited to plain weave, twill weave (e.g.
2.times.1, 2.times.2, 3.times.1, etc.), basket weave, ripstop, and
oxford weave.
[0013] The fabrics of the invention desirably comprise inherently
flame resistant fibers ("FR fibers"). In a preferred form of the
invention, the fabric is made predominately from (e.g. at least
about 65%), or substantially entirely from, FR fibers.
[0014] It has been found that fabric blends including about 90% to
95% FR fibers perform well. Where the fabric is made substantially
entirely from FR fibers, it may also include minor amounts of
additional fibers to enhance certain characteristics of the fabric
(e.g. physical, aesthetic, and/or performance characteristics such
as, but not limited to strength, static dissipation, abrasion
resistance, etc. without adversely impacting FR resistance to a
substantial extent. Preferably, at least some of the FR fibers are
provided in staple form and even more preferably substantially all
of the FR fibers are provided in staple fiber form. To this end, it
has been found to be desirable to manufacture the fabric at least
partially and preferably substantially entirely, from spun yarns.
In particular, where the fabric is a woven fabric, it has been
found to be desirable to include spun yarns in at least the fabric
warp.
[0015] The FR fibers can be of any commercially available variety
within the scope of the invention, but are desirably selected from
the group consisting of aramid fibers, meta-aramids, para-aramids,
fluoropolymers and copolymers thereof, chloropolymers,
polybenzimidazole, polyimides, polyamideimides, partially oxidized
polyacrylonitriles, novoloids, poly(p-phenylene benzobisoazoles),
poly)p-phenylene benzothiazoles), polyphenylene sulfides, flame
retardant viscose rayons, polyvinyl chloride homopolymers and
copolymers thereof, polyetheretherketones, polyketones,
polyetherimides, polylactides, melamine fibers, or combinations
thereof with other FR fibers or fibers that are not inherently
flame resistant. In many instances, commercially-available spun
yarns made from inherently FR fibers include minor quantities of
other types of fibers such as Kevlar.RTM. brand fiber available
from DuPont of Wilmington, Del., nylon, P-140 nylon with carbon
core from DuPont, or the like, to enhance a fabric's strength,
durability, ability to be processed in conventional textile
equipment, etc. For example, a preferred fabric of the invention is
made from Nomex.RTM. IIIA yarns, which contain approximately 95%
aramid fiber, and 5% other fibers (Kevlar.RTM.) aramid and P-140
nylon/carbon), and are available from I.E. DuPont de Nemours of
Wilmington, Del. Examples of some other commercially available FR
fibers are those sold under the tradenames Kermel and Basofil,
available from Rhodia of Colmar, France, and McKinnon-Land of
Charlotte, N.C., respectfully.
[0016] The fabric of the invention is made by processing the fabric
comprising inherently FR fibers with a fluid process designed to
raise loops of fibers outwardly from the fabric surface, and form a
plurality of fiber tangles that are primarily composed of fibers
that are substantially intact and undamaged. Where the fabric
comprises plied yarns, the fluid treatment process also desirably
separates at least a portion of the plies from each other, detwists
them, and causes fibers from adjacent plies to become entangled
with each other.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] FIG. 1 is a photomicrograph (30.times. magnification) of the
unenhanced fabric of Example A;
[0018] FIG. 2 is a photomicrograph (30.times. magnification) of the
enhanced fabric of Example B;
[0019] FIG. 3 is a photomicrograph (100.times. magnification) of
the unenhanced fabric according to Example A;
[0020] FIG. 4 is a photomicrograh (100.times. magnification) of the
enhanced fabric of Example B below;
[0021] FIG. 5 is a photomicrograph (200.times. magnification) of
the unenhanced fabric of Example A; and
[0022] FIG. 6 is a photomicrograph (200.times. magnification) of
the enhanced fabric of Example B below.
DETAILED DESCRIPTION
[0023] In the following detailed description of the invention,
specific preferred embodiments of the invention are described to
enable a full and complete understanding of the invention. It will
be recognized that it is not intended to limit the invention to the
particular preferred embodiment described, and although specific
terms are employed in describing the invention, such terms are used
in a descriptive sense for the purpose of illustration and not for
the purpose of limitation.
[0024] The fabric of the invention desirably comprises inherently
flame resistant fibers ("FR fibers"). In a preferred form of the
invention, the fabric includes at least about 65% FR fibers, more
preferably at least about 90% FR fibers, and even more preferably,
at least about 95% FR fibers. Preferably, at least some of the FR
fibers are provided in staple form and even more preferably,
substantially all of the FR fibers are provided in the form of spun
yarns. As will be appreciated by those of ordinary skill in the
art, spun yarns can be made by a variety of production methods,
including but not limited to open end spinning, air jet spinning,
vortex spinning, ring spinning and the like.
[0025] In a preferred form of the invention, the fabric is made
substantially entirely from spun yarns. Also in a preferred form of
the invention, the yarns are formed of plural plies. Preferably,
each of the plies comprises FR staple fibers. Where the fabric of
the invention is in the form of a woven fabric, it is particularly
preferred that plied spun yarns are provided in at least the fabric
warp.
[0026] In a preferred form of the invention, the fabric is a woven
fabric having a weight of about 2 to about 12 oz/sq yard, and more
preferably about 4 to about 8 oz/sq yard. Where the fabric is to be
used in the manufacture of industrial clothing such as pants,
shirts and overalls, it has been found that fabrics having a weight
of about 5.5-6.5 oz/ sq yd, and more preferably about 5.8-6.2 oz/sq
yard perform well. For example, a fabric having an approximate
weight of about 6 oz/sq yd would perform well as an industrial
bottom weight fabric.
[0027] The fabric is preferably a woven fabric, and can be of any
desired weave construction, including but not limited to plain
weave, twill weave (e.g. 2.times.1, 2.times.2, 3.times.1, etc.),
basket weave, oxford weave, satin weave, and jacquard weave. The
fabrics can be woven according to conventional weaving
processes.
[0028] The fabric desirably has first and second surfaces, with at
least one surface having a plurality of fiber tangles that are
composed primarily of fibers that are substantially intact and
undamaged. When the fabric is formed from plied yarns, the
individual plies are desirably at least partially separated from
each other and individual fibers from different plies are entangled
with each other.
[0029] As illustrated in the drawings, FIGS. 1, 3 and 5 are
photomicrographs at 30.times., 100.times., and 200.times.
magnification, while FIGS. 2, 4 and 6 are photomicrographs at the
same levels of magnification (i.e 30.times., 100.times. and
200.times., respectively) of the fabrics of the invention. As can
clearly be seen from the photomicrographs, the fabrics of the
invention are characterized by a plurality of fiber tangles or
teased loops that are comprised of fibers that are substantially
intact and undamaged, as opposed to the unenhanced fabrics which
have very little entanglement of the fibers and little surface
effect. Also as shown, the plied yarns used in this embodiment of
the invention are at least partially separated into their
individual components and in some cases, the fibers from the
individual components are also entangled with each other. This
characteristic was not only unexpected, but it has been found to
provide a unique and dramatic improvement in aesthetic and hand
characteristics as compared with the untreated fabric, while
retaining good fiber strength and FR characteristics as well.
[0030] One method of manufacturing the fabrics of the instant
invention is as follows: a fabric as described above is woven or
obtained. The fabric is then subjected to a high pressure fluid
stream that is designed to soften and loft the fabric. One example
of a fluid process that may be used is a hydraulic process of the
variety described in commonly-assigned co-pending U.S. patent
application Ser. No. 09/344,596 to Emery et al, filed Jun. 25,
1999, the disclosure of which is incorporated herein by reference.
The type of fabric treatment and treatment parameters were selected
to optimize the aesthetic characteristics of the fabric. Where
multi-ply yarns are used, the high pressure stream also was
surprisingly found to separate the plies from each other and to
de-twist the yarns to some extent. It is believed that this lofting
and ply separation dramatically enhanced the fabric hand and
comfort, without adversely impacting fabric strength. The fabric
can be treated on one or both fabric surfaces, depending on the
desired end result. Also, if desired, one or more chemistries
designed to enhance the fabric characteristics can be applied,
either prior or subsequent to the hydraulic processing.
[0031] The fabric can be dyed to achieve an aesthetically appealing
color, as desired. The dye process can be selected to optimize
processing for the particular fiber content of the fabric and color
desired. In the instant case, it has been found that using cationic
dyes of the variety recommended by dye manufacturers for dyeing
Nomex.RTM.) aramid fibers in a jet dye process at temperatures from
about 220 degrees to about 270 degrees F. (and more preferably from
about 250-270.degree. F.) achieves a good color shade and fabrics
having good colorfastness.
[0032] As noted above, chemistries can be applied to the fabric at
any stage of the process, including before, during or after dyeing.
In this way, additional characteristics such as moisture wicking,
soil release, hand improvements, etc. can be obtained via chemical
means. For example, it was surprisingly found that by applying an
ethoxylated polyamide (traditionally used as a lubricant for nylon)
and a high molecular weight ethoxylated polyester (typically used
to enhance softness, wicking and stain release), fabrics having
soil release and moisture transmission characteristics superior to
those of commercially available fabrics were achieved at comparable
levels of FR protection. Furthermore, it is believed that this
superior soil release will also enhance the FR protection provided
by the fabrics during their useful lives, since the fabrics of the
invention will more readily release flammable soils such as oil and
the like.
[0033] The fabrics are then desirably dried in a conventional
manner, such as by running them through a heated tenter frame at a
temperature of between about 325 and about 425 degrees F.
[0034] The fabrics of the invention have superior aesthetic
characteristics (e.g. hand), as well as superior durability and
performance (as evidenced by the test data below.) In addition, the
fabrics had superior performance in the features correlating to
enhanced wearer comfort. Furthermore, the fabrics had a unique
surface characteristic, heretofore unachieved in FR fabrics.
EXAMPLES
[0035] Example A--A fabric was woven from 30/2 100% Nomex IIIA.RTM.
air-jet spun yarns (95% Aramid, 3% Kevlar.RTM., and 2% Nylon P-140
(from DuPont) with a twist multiple of 14 of the variety available
from Pharr Yarns of McAdenville, N.C. in a 1.times.1 plain weave
construction. The fabric was jet dyed in a conventional manner
using cationic dyes of the variety conventionally recommended for
the dyeing of the Nomex, and acid dyes of the variety commonly used
to dye nylon (both of which will be readily appreciated by those of
ordinary skill in the art. Dyeing was performed at approximately
266.degree. F. for one hour. The fabric was then passed through a
pad containing 1-1/2% Lurotex A-25 ethoxylated polyamide
(distributed by BASF of Mount Olive, N.J.) and 1-1/2% Lubril QCX
high molecular weight ethoxylated polyester manufactured by
Tennessee Eastman (to facilitate stain release and wicking). The
fabric was then dried in a conventional manner on a tenter frame at
about 410.degree. F. at a speed of approximately 25 yards per
minute, after which the fabric was taken up for inspection. The
finished product was nominally 68 ends per inch.times.44 picks per
inch, and was 5.89 oz/sq yd in weight.
[0036] Example B--A fabric was woven in the same manner as Example
A. However, prior to the jet dyeing step, it was run through a pad
containing 1% Lubril QCX, a high molecular weight ethoxylated
polyester of the variety designed to promote stain release (1%
Lubril QCX from Tennessee Eastman), then the fabric was impacted by
water jets on each of its face and back in the manner described in
commonly-assigned co-pending U.S. patent application Ser. No.
09/344,596 to Emery et al, filed Jun. 25, 1999. The fabric was
pulled through the pad and hydraulically treated at a speed of 30
yards per minute, and hydraulic treatment was performed using 1200
psi of the front side of the fabric and 800 psi on the opposite
side of the fabric (manifold exit pressure). The water originated
from a linear series of nozzles which were rectangular 0.015 inches
wide, (filling direction).times.0.010 inches high (warp direction)
in shape and were equally spaced along the treatment zone. There
were 40 nozzles per inch along the width of the manifold. The
fabric traveled over a smooth stainless steel roll that was
positioned 0.120 inches from the nozzles. The nozzles were directed
downward about five degrees from perpendicular, and the water
streams intersected the fabric path as the fabric was moving away
from the surface of the roll. The tension in the fabric within the
first treatment zone was set at about 45 pounds. In the second
treatment zone, the opposite side of the fabric was treated with
high pressure water that originated from a similar series of
nozzles as described above. In this zone the water pressure was
about 800 psig, the gap between the nozzles and the treatment roll
was about 0.120 inches, and the nozzles were directed downward
about five degrees from perpendicular. As before, the water streams
intersected the fabric path as the fabric was moving away from the
surface of the roll. The fabric tension between the treatment zones
was set at about 85 pounds, and the fabric exit tension was set at
about 90 pounds. The fabric was then dried to remove 95% of the
moisture. The fabric was then dyed and finished in the same manner
as Example A. It was surprisingly found that the hydraulic
processing served to distinctly separate the plies of the multi-ply
yarns and entangle yarns from different plies, in addition to
expanding and opening the interstices of the fabric, and that this
particular hydraulic treatment process primarily affected the yarns
in the fabric warp.
[0037] Example C--A fabric was produced in the same manner as
Example B, except the pressures used during hydraulic processing
were 1100 on the front side of the fabric and 800 on the back side
of the fabric.
[0038] Example D--A commercially available 6.39 oz/ sq yd plain
woven 100% Nomex.RTM. IIIA aramid fabric of the variety typically
used for coveralls or pants was obtained. It is believed that the
fabric was finished with hand builders for added stiffness. The
fabric had 26.46/2 MJS yarns (1.67 dpf) in the warp and 27.32/2 MJS
yarns (1.76 dpf) in the filling. The fabric had approximately 66
ends per inch (epi) and 47 picks per inch (ppi), and had been dyed
a navy color.
[0039] Example E is a commercially available 6.00 oz/sq yd plain
woven 100% Nomex.RTM. IIIA aramid fabric. The fabric had 28.74/2
MJS yarns (1.72 dpf) in the warp and 28.85/2 MJS yarns (1.76 dpf)
in the filling. The fabric had approximately 66 epi and 42 ppi, and
had been dyed a spruce green color.
[0040] Example F is a commercially available 6.05 oz/sq yd plain
woven 100% Nomex.RTM. IIIA aramid fabric. The fabric had 27.37/2
MJS yarns (1.71 dpf) in the warp and 28.41 MJS (1.74 dpf) yarns in
the filling. The fabric had approximately 65 epi and 44 ppi. The
fabric had been dyed a royal blue color.
[0041] Example G is a commercially available 6.39 oz/ sq yd plain
woven 100% Nomex.RTM. IIIA aramid fabric of the variety typically
used for outer clothing was obtained. It is believed that the
fabric was finished with hand builders for added stiffness. The
fabric had 26.46/2 MJS yarns (1.67 dpf) in the warp and 27.32/2 MJS
yarns (1.76 dpf) in the filling. The fabric had approximately 66
ends per inch (epi) and 47 picks per inch (ppi), and had been dyed
a navy blue color.
[0042] Example H was another commercially available FR fabric. The
fabric was a 7 oz. 3.times.1 lefthand twill woven 100% cotton FR
treated fabric having 92 epi.times.49 ppi, with 17.82/1 ring spun
yarns in the warp and 12.08/1 RS yarns in the filling. The fabric
had been dyed a navy blue color. It is believed that the FR
treatment was achieved through a conventional ammonia
treatment.
[0043] Example I was a commercially available 9 oz/sq yd 3.times.1
lefthand twill woven 100% cotton FR treated fabric. The fabric had
87 ends per inch and 50 picks per inch using 12.44/1 ring spun
yarns in the warp and 8.53/1 ring spun yarns in the filling. The
fabric had been dyed a khaki color. It is believed that the FR
treatment was achieved through a conventional ammonia
treatment.
[0044] Example J was another commercially available FR fabric. The
fabric was a 7 oz. 88% cotton/12% nylon fabric. The fabric had 93
epi.times.50 ppi, with 18.12/1 RS yarns in the warp and 11.89/1 RS
yarns in the filling. The fabric had been dyed a khaki color. It is
believed that the FR treatment was achieved through a conventional
ammonia treatment.
[0045] Example K was another commercially available FR fabric. The
fabric was 9.68 oz. 88% cotton/12% nylon 3.times.1 twill woven
fabric. The fabric had 92 epi.times.50 ppi, and 12.56 RS yarns in
the warp and 8.58/1 RS yarns in the filling. The fabric had been
dyed a navy blue color. It is believed that the FR treatment was
achieved through a conventional ammonia treatment.
[0046] The fabrics were all subjected to a variety of tests as
outlined below. The fabrics were tested in their as-produced form
(unless otherwise specified in the test method), after 50 washes,
and after 125 washes. All washes were performed in accordance with
the Standard Formula Industrial Wash Method described below. The
results of the tests are listed in the tables below.
[0047] Test Methods
[0048] Standard Formula Industrial Wash Method--
[0049] All washings were performed according to the following wash
method: Garments were washed in a conventional industrial washer at
80% capacity for 12 minutes at 140.degree. F., using the low water
level and 8.0 oz of Choice chemical, which is commercially from
Washing Systems, Inc. of Cincinnati, Ohio. The washing cycle was
performed as follows: drop/fill/wash for 3 minutes at 140.degree.
F., low level water using 7.5 oz of Choice chemical;
drop/fill/rinse for 2 minutes at 140.degree. F., high level water,
no chemical; drop/fill/rinse for 2 minutes at 80.degree. F., high
level water, no chemical; drop/fill/rinse for 2 minutes at
80.degree. F., high level water, no chemical; drop/fill/wash for 4
minutes at 80.degree. F., low level water using 0.3 oz acid sour;
Extract water for 7 minutes at high speed.
[0050] Tensile Strength--
[0051] Tensile strengths in both the warp and filling directions
were measured according to ASTM D1682-75. Generally speaking, in a
protective product/protective garment end use, relatively high
tensile strengths are desired since they positively impact
durability. An exemplary industry specification for an industrial
garment such as an overall or pant is 150 lbs in the warp and 100
lbs in the filling.
[0052] Tear Strength--
[0053] Tear strengths in both the warp and filling directions were
measured according to ASTM D2262-83. Generally speaking, in a
protective product/protective garment end use, relatively high tear
strengths are considered to be desirable, since they correlate to
durability. An exemplary industry specification for an overall or
pant garment is a tear strength of 7.5 lbs in the warp direction
and 7.5 lbs in the filling direction.
[0054] Pilling--
[0055] Pilling was tested after 30 minutes, 60 minutes, and 90
minutes according to ASTM D3512-82. A higher pilling rating
indicates that the fabric has a greater resistance to pilling. A
typical industry specification for an industrial garment such as an
overall or a pant is 3.5-5 after 60 minutes.
[0056] Seam Slippage--
[0057] Seam slippage was measured in both the warp and filling
directions according to ASTM D434-75. Generally speaking, a higher
seam slippage will enhance product durability and an exemplary
industry specific for a fabric to be used in an industrial garment
such as a pant or overall would be 30 lbs in each direction.
[0058] Stoll Flat Abrasion--
[0059] Abrasion resistance was measured according to ASTM D3886-80.
The maximum reading that the test will register is 1000.
[0060] Stretch--Stretch in each of the warp and filling directions
was measured according to ASTM D3107-75.
[0061] Fray--
[0062] Fray was measured in both the warp and filling directions
according to the following procedure, and the results recorded. A
set of five (5) 41/4" circle specimens of each sample are cut using
a punch press machine, and are conditioned for one hour at 65%
relative humidity .+-.5% at 70.+-.5.degree. F. (When cutting the
samples, cut no closer to the selvage than 10% (.+-.1%) of the
fabric width, and mark the warp direction on each specimen.) A
Random Tumble Pilling Machine available from Atlas, Inc. If the
cork liner in the pilling apparatus has been used more than 3
times, place a new cork liner into test cylinders of the pilling
tester making sure they are fitted properly to give a smooth joint.
Put the five specimens from one sample into a single test cylinder.
Make sure all specimens are in the path of the rotor. Up to six
samples can be tested at a time. When the tester is loaded, start
it and tumble the specimen for a period of 10 minutes (.+-.30
seconds.) After this time period, remove the specimen from the
tester. Measure the diameter in the direction of the marking
(.rarw..fwdarw.) to measure the warp through the marking (.Arrow-up
bold..dwnarw.) to measure the filling using a 1/8.sup.th inch
graduated ruler R-9. Measure to first loose thread. The fraying
value is expressed as a percentage and is calculated for both
directions: % fray=(original length-tumbled length)/original
length.times.100. (Note: original length=4.2) A lower fray value
indicates a fabric has greater fray resistance. In particular, a
lower warp fray value would suggest that a fabric would be more
easily handled, thereby making product or garment manufacture more
efficient.
[0063] Shrinkage--
[0064] Shrinkage in the warp and filling directions was measured
according to AATCC Test Method 135-1995.
[0065] Appearance--
[0066] Wash appearance was rated according to AATCC Test Method
124-1996. The fabrics are rated on a scale from 1 to 5, with a
higher rating indicating that the fabric retains a better
appearance following washing.
[0067] Crease Retention--
[0068] Crease Retention was measured according to AATCC Test Method
39C-1984. Fabrics are rated on a scale from 1 to 5, with a higher
rating indicating that a fabric has greater crease retention.
[0069] Soil Release--
[0070] The soil release properties of the fabrics were measured
according to AATCC 130-1995 (corn oil), as follows: 0/1=Soiled
prior to washing, tested after 1 wash. 4/5=Soiled after 4 washes,
tested after 5 washes. 48/49=Soiled after 48 washes, tested after
49 washes. 48/50=Soiled after 48 washes, tested after 50 washes.
123/124=Soiled after 123 washes, tested after 124 washes.
123/125=Soiled after 123 washes, tested after 125 washes.
[0071] Vertical Wicking--
[0072] Wicking was measured using a vertical wicking test as
follows. The test is used to determine the rate at which water will
wick on test specimens suspended in water.
[0073] Equipment:
[0074] 1. 500 ml Erlenmeyer flasks
[0075] 2. Straight pins (approximately 3" in length)
[0076] 3. Food coloring (any color to make water level visible on
specimen)
[0077] Procedure:
[0078] 1. Fill 500 ml Erlenmeyer flasks with 200 ml colored water
(fill as many flasks as specimens to be tested).
[0079] 2. A. Cut 6".times.1" strip of specimens to be tested (6"
length is cut in the wale direction).
[0080] B. Pierce top edge of strip (approximately 1/8"-1/4" from
top) with long straight pin.
[0081] 3. Suspend strip from pin in flask filled with 200 ml
colored water.
[0082] 4. After 1 minute:
[0083] A. Remove strip from flask
[0084] B. Measure water level on strip in inches and record
[0085] C. Return strip to water
[0086] 5. Repeat steps A., B., and C., from above at the following
time intervals; 3 minutes, 5 minutes, and each 5 minute interval
following until the water level reaches 6" or 1 hour has
elapsed.
[0087] A higher score indicates the fabric has better wicking
capability.
[0088] Drop Disappearance--
[0089] Wicking was also measured according to a drop disappearance
test as follows. This test method is used to determine the
efficiency of the fabric in transporting or wicking the moisture
(such as an aqueous perspiration).
[0090] Equipment:
[0091] 1. Straight medicine dropper
[0092] 2. Stop watch
[0093] 3. Distilled water
[0094] 4. Embroidery hoops
[0095] Test Specimens:
[0096] A sample large enough to test three different areas is
required (preferably full fabric width).
[0097] Procedure:
[0098] 1. Place the sample in an embroidery hoop and pull tight.
(Care must be taken not to pull the sample too tight.)
[0099] 2. The tip of the dropper should be one inch from the
sample. Allow one drop of water to fall onto the sample. Start
timer immediately. Watch the drop of water until it disappears and
stop the time. Record the time required for the drop to
disappear.
[0100] 3. Repeat the above procedure on three different areas of
each sample. Test samples "as received" and after five washings and
tumble dryings, or as specified.
[0101] Report:
[0102] The average time required for the drop of water to
disappear. A lower time indicates a fabric absorbs moisture more
quickly.
[0103] Thickness--
[0104] Fabric thickness was measured according to ASTM
D1777-1996.
[0105] Air Permeability--
[0106] Air permeability was measured according to AATCC Test Method
737-1996. In many applications (such as those where a wearer will
wear the garment in a hot environment), higher air permeability
will enhance the wearer's perception of the comfort of the garment.
The air permeability is measured in cubic ft/min of air that travel
through the fabric, with a higher number indicating that the fabric
is more breathable.
[0107] Flammability (After Flame)--
[0108] Flammability (after flame) was measured according to
National Fire Protection Agency ("NFPA") Test Method 701-1989. The
test indicates how long a fabric continues to burn after the flame
has expired (with a lower number generally being preferable in an
FR product.)
[0109] Flammability (After Glow)--
[0110] Flammability (after glow) was measured according to NFPA
Test Method 701-1989. This test indicates how long a fabric
continues to glow after the flame has expired (with a lower number
generally being preferably in an FR product.
[0111] Flammability (Char Length)--
[0112] Char Length was measured according to NFPA Test Method
701-1989. A lower char length indicates a lesser tendency of a
fabric to burn. Generally, to be suitable for an FR garment, a
fabric must have a char length of less than 4 inches.
[0113] Thermal Protection Performance (TPP)--
[0114] Thermal Protection Performance was measured according to
ASTM D4108-1996. A higher TPP value indicates that a fabric
provides greater insulation.
[0115] Arc Thermal Protection Value (ATPV)--
[0116] Arc Thermal Protection Value was measured according to ASTM
F 1959-1999. A minimum of twenty-one samples were tested for each
fabric, and the results were averaged. A higher ATPV indicates that
a fabric provides greater protection against electrical arc
exposure.
[0117] Pyroman Test--
[0118] Burns were conducted on the Pyroman equipment (such as that
available at the test labs at North Carolina State University)
according to NFPA Test Method 2112 for 3 seconds. The % total body
burn after each of the burns was recorded. A lower % body burn
indicates the product is more protective of a wearer or user. A
typical industry specification for a 3 second burn for a industrial
garment (such as a pant or overall) is <50%.
[0119] Predicted Burn--
[0120] Also using the Pyroman equipment and test method described
above, fabrics were tested at various flame exposure times, and the
level of predicted burn (second degree, third degree, and total)
were recorded. Several samples of each Example fabric were run.
[0121] Handle-O-Meter--
[0122] Handle-o-meter readings were measured in each of the warp
and filling directions according to the following method, using
Handle-o-meter model number 211-300 from Thwing Albert.
[0123] Using the Handle-O-Meter template (T-3), cut out three
samples (face up). Be sure to cut samples at least 50 mm from
selvage and/or 50 mm away from cut end of cloth. Avoid areas that
have a fold or crease. Cut one from the left side, one from the
center, and one from the right side. Label samples to indicate from
where they were cut, and mark the warp and filling directions.
Ensure the MODE selector is set in the TEST mode. If the
Handle-O-Meter is not zeroed, unlock the ZERO control, adjust the
knob until the indicator reads .+-.000, then re-lock the ZERO
control. Set MODE selector to PEAK. Place swatch over slot
extending across the platform, FACE UP. To check the warp, turn
sample 90 degrees so that the sample top is on the left. To check
the filling, place the sample in the machine with the sample top in
the 12:00 position. Press START/RESET control. Test the samples,
starting with the warp right, then test the filling right. Test the
center and left side the same as above. Readings for standard
should be recorded on 11ZHAND. Run Chart reading should be recorded
on the correct style sheet and Data Document 11ZCTAN. When all 3
warps and all 3 fillings have been tested, average the warp and
filling measurements and record. Repeat for additional set. A lower
Handle-O-Meter reading indicates that the fabric is more flexible.
Readings were recorded in units of grams-force.
[0124] Drape--
[0125] The drape coefficient was measured according to the
following test process: Using an FRL.RTM. Drapemeter (of the
variety described by Chu, C. C. , Cummings, C. L. and Teixeira, N.
A., in "Mechanics of Elastic Performance of Textile Materials Part
V: A Study of the Factors Affecting the Drape of Fabrics--The
Development of a Drape Meter", Textile Research Journal Vol 39 No.
8, 1950, pp. 539-548). This test is designed to determine the
extent to which a fabric will deform when allowed to hang under its
own weight, or by the ability of the fabric to drape by orienting
itself into folds or pleats when acted upon by the force of
gravity. The test used an FRL.RTM. Drapemeter, a uniform grade of
tracing paper, a balance and scissors. The test specimens and
tracing paper were conditioned to equilibrium and tested in the
standard atmosphere of 65% relative humidity and 70.degree. F.
temperature. Moisture equilibrium shall be approached from the dry
side (not moisture free.) Six test specimens (3 face up, and 3 face
down), 10 inches in diameter were cut from the fabric. The
specimens were taken from the right, center and left fabric areas,
but no closer to the selvage than {fraction (1/10)} of the fabric
width. The specimens were marked as to face and back. A 10 inch
diameter circle was cut from a uniform grade of tracing paper and
it was weighed to the nearest milligram. The weight was recorded as
W1. A 4 inch diameter circle (to represent the annular support
ring) was cut and weighed to the nearest milligram. The weight was
recorded as W2. A 10 inch diameter specimen was taken and a hole
was made to mark the center of the test specimen. The specimen was
placed on the support ring, and centered on the support. A sheet of
tracing paper was placed on the clear top side of the Drapemeter.
With the light source on, the paper was centered about the
projected image of the fabric specimen and the outline of the
shadow image was carefully traced on the paper. The traced image
was cut out and the image paper was weighed to the nearest
milligram, and recorded as W3.
[0126] The following calculation was made:
Drape coefficient=[(W3-W2)/(W1-W2)].times.100, where
[0127] W1=weight, 10 inch diameter paper, mg.
[0128] W2=weight, 4 inch diameter paper, mg
[0129] W3=weight, projected image, cut from paper used to obtain
W1, mg.
[0130] The six readings were averaged, and reported as the Drape
Coefficient. If a side effect was noticed (back vs. face), sides
are reported separately. A lower drape coefficient indicates that
the fabric is more drapeable.
[0131] Ring Test Load--
[0132] Ring test load (i.e. Fabric handle by ring tensile) was
measured according to the following test method. The test involves
pulling the fabric through a ring at a set rate to determine the
forces associated with friction and bending. A 10 inch diameter
circle of the fabric to be tested was cut. The center of the circle
was marked. The tensile tester was set up with a 38 mm diameter
ring with a radius of 24 mm. The test speed was set at 10
inches/minute. A string was attached to a small fishhook, with the
barb removed, and it was attached to the center of the fabric via
the fishhook. The other end of the string was attached to the
crosshead of the tensile tester. The tester was started and run
until the fabric was pulled completely through the ring. The force
required to pull the fabric through the ring and the modulus of the
initial folding of the fabric as it approached the ring were
recorded. A lower ring test load value indicates that a fabric is
more supple and flexible.
[0133] Kawabata Testing--
[0134] A variety of characteristics were measured using the
Kawabata Evaluation System ("Kawabata System"). The Kawabata System
was developed by Dr. Sueo Kawabata, Professor of Polymer Chemistry
at Kyoto University in Japan, as a scientific means to measure, in
an objective and reproducible way, the "hand" of textile fabrics.
This is achieved by measuring basic mechanical properties that have
been correlated with aesthetic properties relating to hand (e.g.
smoothness, fullness, stiffness, softness, flexibility, and
crispness), using a set of four highly specialized measuring
devices that were developed specifically for use with the Kawabata
System. These devices are as follows:
[0135] Kawabata Tensile and Shear Tester (KES FB1)
[0136] Kawabata Pure Bending Tester (KES FB2)
[0137] Kawabata Compression Tester (KES FB3)
[0138] Kawabata Surface Tester (KES FB4)
[0139] KES FB1 through 3 are manufactured by the Kato Iron Works
Col, Ltd., Div. Of Instrumentation, Kyoto, Japan. KES FB4 (Kawabata
Surface Tester) is manufactured by the Kato Tekko Co., Ltd., Div.
Of Instrumentation, Kyoto, Japan. In each case, the measurements
were performed according to the standard Kawabata Test Procedures,
with four 8-inch.times.8-inch samples of each type of fabric being
tested, and the results averaged. Care was taken to avoid folding,
wrinkling, stressing, or otherwise handling the samples in a way
that would deform the sample. The fabrics were tested in their
as-manufactured form (i.e. they had not undergone subsequent
launderings.) The die used to cut each sample was aligned with the
yarns in the fabric to improve the accuracy of the
measurements.
[0140] Shear Measurements
[0141] The testing equipment was set up according to the
instructions in the Kawabata manual. The Kawabata shear tester (KES
FB1) was allowed to warm up for at least 15 minutes before being
calibrated. The tester was set up as follows:
[0142] Sensitivity: 2 and .times.5
[0143] Sample width: 20 cm
[0144] Shear weight: 195 g
[0145] Tensile Rate: 0.2 mm/s
[0146] Elongation Sensitivity: 25 mm
[0147] The shear test measures the resistive forces when the fabric
is given a constant tensile force and is subjected to a shear
deformation in the direction perpendicular to the constant tensile
force.
[0148] Mean Shear Stiffness (G) [gf/(cm-deg)].
[0149] Mean shear stiffness was measured in each of the warp and
filling directions. A lower value for shear stiffness is indicative
of a more supple hand.
[0150] Shear Hysteresis at 0.5.degree., 2.5.degree. and
50.degree.--(2HG05, 2HG25, and 2HG50, respectively) [gf/cm]--
[0151] A lower value indicates that the fabric recovers more
completely from shear deformation. This correlates to a more supple
hand.
[0152] Residual Shear Angle at 0.5.degree., 2.5.degree., and
5.0.degree. (RG05, RG25, and RG50, respectively.) [degrees]
[0153] The lower the number, the more "return energy" required to
return the fabric to its original orientation.
[0154] Four samples were taken in each of the warp and filling
directions, averaged, and are listed below.
[0155] Bending Measurements
[0156] Bending Stiffness (B)--
[0157] A lower value means a fabric is less stiff.
[0158] Bending hysteresis at 0.5.degree., 1.0.degree., and
1.5.degree. (2HB05, 2HB10, 2HB15)
[0159] Mean bending stiffness per unit width at K=0.5, 1.0 and 1.5
cm.sup.-1 [gf-cm/cm]. Bending stiffness was measured in each of the
warp and filling. A lower value means the fabric recovers more
completely from bending, and has a softer, more supple hand.
[0160] Residual Bending at 0.5.degree., 1.0.degree., and
1.5.degree.--(RB05, RB10, RB15)
[0161] Residual bending curvature at K=0.5, 1.0 and 1.5 cm.sup.-1.
A lower residual bending curvature indicates that a fabric is
stiffer (less supple).
[0162] Compression Analysis
[0163] The testing equipment was set up according to the
instructions in the Kawabata manual. The Kawabata Compression
Tester (KES FB3) was allowed to warm up for at least 15 minutes
before being calibrated. The tester was set up as follows:
[0164] Sensitivity: 2 and .times.5
[0165] Stroke: 5 mm
[0166] Compression Rate: 1 mm/50 s
[0167] Sample Size: 20.times.20 cm
[0168] The compression test measured the resistive forces
experienced by a plunger having a certain surface area as it moves
alternately toward and away from a fabric sample in a direction
perpendicular to the fabric. The test ultimately measures the work
done in compressing the fabric (forward direction) to a preset
maximum force and the work done while decompressing the fabric
(reverse direction).
[0169] Percent compressibility at 0.5 grams (COMP05)
[0170] The higher the measurement, the more compressible the
fabric.
[0171] Maximum Thickness (TMAX)--
[0172] Thickness [mm] at maximum pressure (nominal is 50
gf/cm.sup.2). A higher TMAX indicates a loftier fabric.
[0173] Minimum Thickness (TMIN)
[0174] Thickness at 0.5 g/sq cm. More is generally considered to be
better. A higher TMIN indicates a loftier fabric.
[0175] Minimum Density--
[0176] Density at TMIN (DMIN). Less is generally considered to be
better) T.sub.min[g/cm.sup.3]
[0177] Maximum Density--
[0178] Density at TMAX (DMAX)--T.sub.max[g/cm.sup.3] A lower value
is generally considered to be better.
[0179] Thickness Change During Compression (TDIFF)--
[0180] Higher indicates a loftier fabric.
[0181] Compressional Work per Unit Area (WC)
[0182] Energy to compress fabric to 50 gf/cm.sup.2[gf-cm/cm.sup.2].
More is generally considered to be better.
[0183] Decompressional Work per Unit Area (WC')
[0184] This is an indication of the resilience of the fabric. A
larger number indicates more resilience (i.e. a springier hand),
which is generally considered to be better.
[0185] Linearity of Compression--0.5 grams-(LC05)--
[0186] Compares compression work with the work along a hypothetical
straight line from (X.sub.0, y(X.sub.0)) to (X.sub.max,
y(X.sub.max)) The closer to linear, the more consistent the fabic
is.
[0187] % Compression Resilience--(RC)
[0188] Higher means recovers better from compression.
[0189] Surface Analysis
[0190] The testing equipment was set up according to the
instructions in the Kawabata Manual. The Kawabata Surface Tester
(KES FB4) was allowed to warm up for at least 15 minutes before
being calibrated. The tester was set up as follows:
[0191] Sensitivity 1: 2 and .times.5
[0192] Sensitivity 2: 2 and .times.5
[0193] Tension Weight: 480 g
[0194] Surface Roughness Weight: 10 g
[0195] Sample Size: 20.times.20 cm
[0196] The surface test measures frictional properties and
geometric roughness properties of the surface of the fabric.
[0197] Coefficient of Friction--(MIU)
[0198] Mean coefficient of friction [dimensionless]. This was
tested in each of the warp and filling directions. A higher value
indicates that the surface consists of more fiber ends and loops,
which gives the fabric a soft, fuzzy hand.
[0199] Mean Deviation of Coefficient of Friction (MMD)--
[0200] Indicates the level of consistency of the coefficient of
friction.
[0201] Surface roughness (SMD) Mean deviation of the displacement
of contactor normal to surface [microns]. Indicative of how rough
the surface of the fabric is. A lower value indicates that a fabric
surface has more fiber ends and loops that give a fabric a softer,
more comfortable hand.
[0202] Tensile Analysis
[0203] Tensile Energy (WT)
[0204] was measured in each of the warp and filling directions. A
lower tensile energy generally indicates the fabric has "give" to
it and is more extensible, which would be expected to be indicative
of greater fabric comfort.
[0205] Linearity of Extension (LT)--
[0206] Dimensionless--Indicates consistency of extension.
[0207] Tensile Resiliency(RT)--
[0208] Measured in percent. Indicates ability of fabric to recover
from tensile stretch.
[0209] Percent Extensibility (EMT)--
[0210] Measured in each of the warp and filling directions. A
higher number indicates a fabric has a greater stretch property.
(This is a static profile.)
1 TABLE A Tensile Warp Tensile Fill (LBS) (LBS) 0 50 100 50 125
Parameter Washes Washes Washes 0 Washes Washes Washes Example A 236
215 227 130 140 140 Example B 221 204 206 131 142 146 Example C --
-- -- -- -- -- Example D 235 213 224 166 150 159 Example E 212 199
212 133 135 149 Example F 231 210 209 152 139 138 Example G 235 213
224 166 150 159 Example H 78 78 86 40 44 66 Example I 139 137 123
83 75 97 Example J 87 84 77 59 59 65 Example K 139 140 106 84 87
90
[0211]
2 TABLE B Tear Warp Tear Fill (LBS) (LBS) 0 50 125 50 125 Parameter
Washes Washes Washes 0 Washes Washes Washes Example A 15.4 10.6 8.9
12.7 7.2 6.5 Example B 13.2 8.7 8.6 10.3 6.7 6.7 Example C -- -- --
-- -- -- Example D 14.3 9.1 9.1 9.8 7.6 6.3 Example E 13.4 9.4 10.2
8.1 7.3 6.7 Example F 9.7 8.4 8.7 8.2 5.9 6.3 Example G 14.3 9.1
9.1 9.8 7.6 6.3 Example H 7.7 6.4 4.3 8.0 7.1 3.5 Example I 8.2 4.2
4.4 7.8 4.9 4.9 Example J 8.2 4.1 3.9 7.8 4.3 3.6 Example K 7.3 4.4
3.6 9.2 4.7 5.1
[0212]
3 TABLE C Pilling - 30 minutes Pilling - 60 minutes (Rated 1-5)
(Rated 1-5) 0 50 125 50 125 Parameter Washes Washes Washes 0 Washes
Washes Washes Example A 4.0 5.0 5.0 4.0 5.0 5.0 Example B 4.0 5.0
5.0 4.0 5.0 5.0 Example C -- -- -- -- -- -- Example D 4.3 4.8 5.0
4.3 4.8 5.0 Example E 4.0 5.0 4.5 4.0 4.5 5.0 Example F 4.0 5.0 5.0
4.0 5.0 5.0 Example G 4.3 4.8 5.0 4.3 4.8 5.0 Example H 4.5 5.0 4.0
4.5 5.0 2.5 Example I 4.5 5.0 5.0 4.5 5.0 5.0 Example J 4.5 4.5 5.0
4.5 4.5 4.0 Example K 4.5 5.0 5.0 4.5 5.0 5.0
[0213]
4 TABLE D Stoll Flat Abrasion (Cycles until Pilling - 90 minutes
sample falls apart - Test (Rated 1-5) Maximum is 1000 cycles) 0 50
125 50 125 Parameter Washes Washes Washes 0 Washes Washes Washes
Example A 4.0 5.0 5.0 1000 1000 1000 Example B 4.0 5.0 5.0 1000
1000 1000 Example C -- -- -- -- -- -- Example D 4.3 5.0 4.8 1000
1000 1000 Example E 4.0 5.0 4.5 1000 1000 1000 Example F 4.0 5.0
5.0 1000 1000 1000 Example G 4.3 5.0 4.8 1000 1000 1000 Example H
4.5 4.5 2.0 1000 1000 1000 Example I 4.5 5.0 5.0 1000 1000 1000
Example J 4.5 3.5 4.5 1000 1000 1000 Example K 4.5 5.0 5.0 1000
1000 1000
[0214]
5 TABLE E Seam Slippage - Warp Seam Slippage - Filling (LBS) (LBS)
0 50 125 50 125 Parameter Washes Washes Washes 0 Washes Washes
Washes Example A 50 46.6 43.7 45 44 43.2 Example B 58 49 50 47 47
45 Example C -- -- -- -- -- -- Example D 48 47 45 48 47 45 Example
E 55 48 46 55 48 46 Example F 48 45 51 48 45 51 Example G 48 47 45
48 47 45 Example H 48 43 42 43 43 41 Example I 53 40 43 49 43 40
Example J 44 38 42 47 40 43 Example K 40 47 49 35 41 46
[0215]
6 TABLE F Warp Stretch Fill Stretch (%) (%) 0 50 125 50 125
Parameter Washes Washes Washes 0 Washes Washes Washes Example A
3.80 6.30 7.50 1.25 3.80 3.80 Example B 5.00 7.50 7.50 2.50 2.50
3.80 Example C -- -- -- -- -- -- Example D 5.00 7.50 7.50 2.50 3.80
3.80 Example E 7.50 7.50 7.50 3.80 3.80 3.80 Example F 3.80 6.30
6.30 2.50 3.80 5.00 Example G 5.00 7.50 7.50 2.50 3.80 3.80 Example
H 5.00 7.50 10.00 6.30 10.00 10.00 Example I 6.30 7.50 7.50 5.00
7.50 10.00 Example J 8.80 8.80 7.50 7.50 10.00 10.00 Example K 6.00
8.80 6.30 5.00 7.50 7.50
[0216]
7 TABLE G Fray Warp Fray Fill (%) (%) 0 50 125 50 125 Parameter
Washes Washes Washes 0 Washes Washes Washes Example A 13.80 2.38
10.95 26.90 11.90 21.43 Example B 4.80 2.86 2.38 9.50 8.57 10.48
Example C -- -- -- -- -- -- Example D 19.30 3.34 14.04 4.70 4.05
14.28 Example E 13.40 8.60 7.62 16.20 18.00 20.00 Example F 13.80
21.43 10.95 4.70 19.52 19.05 Example G 19.30 3.34 14.04 4.70 4.05
14.28 Example H 23.00 4.76 15.71 17.00 13.33 7.62 Example I 2.40
18.10 15.24 2.40 6.19 4.76 Example J 7.10 17.14 16.67 21.40 7.62
1.48 Example K 2.40 11.90 2.86 4.80 4.29 11.90
[0217]
8 TABLE H Shrinkage Warp Shrinkage Filling (%) (%) 50 125 0 50 125
Parameter 0 Washes Washes Washes Washes Washes Washes Example A 2.1
0.0 0.5 0.6 0.3 0.5 Example B 2.7 0.6 0.3 0.8 0.3 0.1 Example C --
-- -- -- -- -- Example D 1.9 0.3 0.8 1.2 0.6 0.0 Example E 1.5 0.9
1.0 0.7 0.5 0.9 Example F 1.4 0.3 0.1 1.4 0.7 0.4 Example G 1.9 0.3
0.8 1.2 0.6 0.0 Example H 0.6 0.7+ 0.3 3.1 0.2+ 0.2 Example I 0.9
0.1 0.5 0.0 0.6 0.1 Example J 0.6 1.1 0.8 3.2 0.6 0.2 Example K 3.7
1.0 0.2 0.0 1.0 0.5
[0218]
9 TABLE I Appearance Crease Retention (Rated 1-5) (Rated 1-5) 0 50
125 0 50 125 Parameter Washes Washes Washes Washes Washes Washes
Example A 3.5 4.5 4.5 4.0 5.0 5.0 Example B 3.5 4.0 4.5 4.0 5.0 5.0
Example C -- -- -- -- -- -- Example D 3.5 3.8 3.8 4.0 5.0 5.0
Example E 4.0 4.0 4.5 4.0 5.0 5.0 Example F 3.0 4.0 4.0 4.0 5.0 5.0
Example G 3.5 3.8 3.8 4.0 5.0 5.0 Example H 3.0 3.5 3.5 4.0 5.0 5.0
Example I 3.0 3.5 3.5 4.0 5.0 5.0 Example J 3.5 3.5 3.5 4.0 5.0 5.0
Example K 3.0 4.0 3.5 4.0 5.0 5.0
[0219]
10 TABLE J Soil Release (Rated 1-5) Parameter 0/1 4/5 48/49 48/50
123/124 123/125 Example A 2.5 3.5 4.5 2.5 3.5 4.5 Example B 3.3 3.0
4.0 4.5 4.0 5.0 Example C -- -- -- -- -- -- Example D 2.0 1.3 2.4
3.6 1.9 3.9 Example E 1.5 2.0 3.0 3.7 2.5 3.0 Example F 2.0 1.0 2.6
3.4 2.3 4.3 Example G 2.0 1.3 2.4 3.6 1.9 3.9 Example H 1.0 1.0 1.5
2.6 1.3 4.0 Example I 1.0 1.0 1.5 3.9 1.5 4.3 Example J 1.0 1.0 3.1
4.3 3.8 4.5 Example K 1.0 1.0 1.6 1.8 1.0 3.5
[0220]
11 TABLE K Vertical Wicking - 15 Drop Disappearance minutes
(inches) (seconds) 0 50 125 50 125 Parameter Washes Washes Washes 0
Washes Washes Washes Example A 5.9 4.7 5.1 <1 sec 1.7 2.5
Example B 6.8 4.7 4.7 <1 sec 2.0 1.7 Example C -- -- -- -- -- --
Example D 4.6 5.3 5.8 2.2 2.7 4.4 Example E 4.9 5.3 5.9 3.0 3.8 3.9
Example F 5.6 6.5 6.6 5.3 4.7 4.0 Example G 4.6 5.3 5.8 2.2 2.7 4.4
Example H 5.1 6.4 6.4 3.1 0.4 0.8 Example I 5.1 5.4 5.0 2.9 0.7 0.5
Example J 5.2 6.6 6.6 1.5 0.3 0.4 Example K 4.7 5.5 5.1 2.5 0.6
0.7
[0221]
12 TABLE L Thickness Air Permeability (mm) (cfm) 0 50 125 0 50 125
Parameter Washes Washes Washes Washes Washes Washes Example A 19.40
22.32 22.01 84.4 61 58.8 Example B 22.48 25.63 25.16 77.6 57.6 55.3
Example C -- -- -- -- -- -- Example D 19.87 22.10 21.85 47.3 39.5
42.8 Example E 20.78 21.33 21.88 80.6 83.4 84.6 Example F 21.25
21.63 22.13 47.1 78.3 80.2 Example G 19.87 22.10 21.85 47.3 39.5
42.8 Example H 16.5 25.13 25.63 54.1 53.8 64.7 Example I 22.33
29.19 28.88 19.6 10.6 10.9 Example J 19.65 26.32 26.13 37.6 55.2
58.1 Example K 23.65 29.69 30.44 26.07 10 9.84
[0222]
13 TABLE M Flammability- After Flame Flammability- After Glow
(seconds) (seconds) 0 50 125 0 50 125 Parameter Washes Washes
Washes Washes Washes Washes Example A <1 sec <1 sec <1 sec
<1 sec <1 sec <1 sec Example B <1 sec <1 sec <1
sec <1 sec <1 sec <1 sec Example C -- -- -- -- -- --
Example D <1 sec <1 sec <1 sec <1 sec <1 sec <1
sec Example E <1 sec <1 sec <1 sec <1 sec <1 sec
<1 sec Example F <1 sec <1 sec <1 sec <1 sec <1
sec <1 sec Example G <1 sec <1 sec <1 sec <1 sec
<1 sec <1 sec Example H <1 sec <1 sec <1 sec <1
sec <1 sec <1 sec Example I <1 sec <1 sec <1 sec
<1 sec <1 sec <1 sec Example J <1 sec <1 sec <1
sec <1 sec <1 sec <1 sec Example K <1 sec <1 sec
<1 sec <1 sec <1 sec <1 sec
[0223]
14 TABLE N Flammability- Char Length Thermal Protection (inches)
Performance (TPP) 0 50 (calories/cubic cm) Parameter Washes Washes
125 Washes 0 Washes Example A 1.9 2.9 3.1 8.83 Example B 2.3 3.1
2.3 9.21 Example C -- -- -- -- Example D 3.8 2.3 2.4 9.19 Example E
3.9 2.1 2.0 -- Example F 3.6 2.3 2.8 9.25 Example G 3.8 2.3 2.1
9.19 Example H 3.1 1.9 2.4 7.48 Example I 2.5 1.9 2.4 9.53 Example
J 3.2 2.9 3.8 8.90 Example K 3.4 2.6 2.1 --
[0224]
15TABLE O Arc Thermal Protection Value (ATPV) (calories/cm.sup.2)
Pyroman Parameter All are washed as part of test 3 seconds Example
A 6.1 -- Example B 6.0 28 Example C -- -- Example D 5.7 <50R
Example E -- <50R Example F 5.6 <50R Example G 5.7 <50R
Example H 6.0R <50R Example I 7.9R <50R Example J 7.3R
<50R Example K 11.2R <50R R = recorded in the literature
[0225]
16 TABLE P Predicted Burn Flame Second Example Exposure (sec)
Degree Third Degree Total Example B 4.00 40.98 8.20 49.18 Sample 1
Example B 4.00 45.08 8.20 53.28 Sample 2 Example B 4.00 41.80 9.02
50.82 Sample 3 Average 42.62 8.47 51.09 Example B 3.00 18.85 6.56
25.41 Sample 1 Example B 3.00 22.13 6.56 28.69 Sample 2 Example B
3.00 23.77 6.56 30.33 Sample 3 Average 21.59 6.56 28.14 Example B
3.50 28.69 6.56 28.14 Sample 1 Example B 5.00 39.34 22.95 62.30
Sample 1 Example B 5.00 43.44 18.03 61.48 Sample 2 Example B 5.00
42.62 20.49 63.11 Sample 3 Average 41.80 20.49 62.29
[0226]
17 TABLE Q Handle-O-Meter- Warp Handle-O-Meter-Filling (grams
force) (grams force) Parameter 0 Washes 0 Washes Example A 33 27
Example B 34 26 Example C -- -- Example D 97 70 Example E 109 79
Example F 124 52 Example G 97 70 Example H 41 21 Example I 192 182
Example J 32 18 Example K 209 264
[0227]
18 TABLE R Drape Coefficient Ring Test Load (0-100) (lbs.) 0 50 125
0 50 125 Parameter Washes Washes Washes Washes Washes Washes
Example A 33.4 26.86 26.50 72.64 59.25 72.36 Example B 30.90 28.46
24.17 90.80 66.93 102.10 Example C -- -- -- -- -- -- Example D
64.90 34.61 31.20 208.84 90.25 83.71 Example E 70.60 31.08 --
249.70 83.28 -- Example F 65.20 33.47 30.54 340.50 93.00 89.86
Example G 64.90 34.61 31.20 208.84 80.25 83.71 Example H 39.3 38.8
31.7 140.74 120.190 121.277 Example I 74.0 56.5 47.3 612.90 541.826
297.478 Example J 34.4 37.3 35.9 136.20 97.203 100.951 Example K
80.3 53.0 51.2 862.60 352.747 392.280
[0228]
19 TABLE S Bending Stiffness (B) Bending Stiffness (B) Warp
Direction Filling Direction 0 50 125 0 50 125 Parameter Washes
Washes Washes Washes Washes Washes Example A 0.140 0.091 0.085
0.101 0.083 0.088 Example B 0.15 0.088 0.084 0.11 0.090 0.089
Example C -- -- -- -- -- -- Example D 0.766 0.130 0.101 0.418 0.112
0.087 Example E 0.723 0.120 0.112 0.371 0.085 0.073 Example F 0.903
0.270 0.260 0.324 0.090 0.081 Example G 0.766 0.130 0.101 0.418
0.112 0.087 Example H 0.21 0.162 0.119 0.13 0.084 0.080 Example I
1.04 0.359 0.337 1.06 0.214 0.214 Example J 0.17 0.173 0.169 0.12
0.083 0.092 Example K 1.50 0.362 0.398 1.66 0.226 0.257
[0229]
20 TABLE T % Compressibility (Comp 05) 0 50 Parameter Washes Washes
125 Washes Example A 40.680 42.808 42.141 Example B 40.126 45.044
42.182 Example C 42.459 44.727 42.398 Example D 33.454 40.529
38.959 Example E 34.717 41.842 40.427 Example F 36.736 41.994
42.182 Example G 33.454 40.529 38.959 Example H 40.432 39.837
34.407 Example I 31.886 29.658 25.763 Example J 39.871 37.860
33.236 Example K 32.183 33.251 27.035
[0230]
21 TABLE U Shear Stiffness (G) Shear Stiffness (G) Warp Filling 0
50 125 0 50 125 Parameter Washes Washes Washes Washes Washes Washes
Example A 0.7770 0.658 0.592 0.6357 0.489 0.435 Example B 0.9590
0.739 0.612 0.7833 0.583 0.490 Example C 0.9260 0.701 0.653 0.7683
0.569 0.521 Example D 3.4670 1.068 0.968 3.3963 1.028 0.871 Example
E 2.4437 0.692 0.633 2.2013 0.615 0.568 Example F 2.2210 0.512
0.498 2.0490 0.470 0.403 Example G 2.9357 1.068 0.968 2.7140 1.028
0.871 Example H 0.7547 0.838 0.835 0.6633 0.829 0.734 Example I
2.7373 2.763 2.575 2.6953 2.773 2.662 Example J 0.9037 0.845 0.868
0.8197 0.772 0.757 Example K 3.0097 2.905 3.268 2.9207 3.096
3.307
[0231]
22 TABLE V Coefficient of Friction Coefficient of Friction (MIU)
Warp (MIU) Filling 0 50 125 0 50 125 Parameter Washes Washes Washes
Washes Washes Washes Example 0.193000 0.212 0.214 0.217667 0.222
0.227 A Example 0.213667 0.217 0.216 0.224667 0.224 0.227 B Example
0.209667 0.217 0.223 0.219667 0.229 0.233 C Example 0.189333 0.211
0.214 0.199667 0.218 0.233 D Example 0.187000 0.202 0.208 0.187000
0.225 0.227 E Example 0.209667 0.199 0.210 0.221667 0.212 0.219 F
Example 0.185667 0.211 0.214 0.201667 0.218 0.233 G Example
0.217333 0.231 0.228 0.225667 0.257 0.250 H Example 0.178333 0.221
0.226 0.194667 0.246 0.242 I Example 0.217000 0.231 0.247 0.233333
0.253 0.273 J Example 0.177000 0.242 0.231 0.198333 0.252 0.241
K
[0232]
23 TABLE W WT Warp WT Filling Parameter 0 Washes 50 Washes 125
Washes 0 Washes 50 Washes 125 Washes Example A 10.521 12.639000
13.34970 5.375 7.151300 7.28630 Example B 10.668 13.716700 13.59600
5.444 7.536700 7.66530 Example C 11.006 13.672700 13.76430 5.578
7.473700 7.68270 Example D 9.262 13.063700 12.90800 4.917 7.490700
7.30570 Example E 8.198 11.222700 11.92700 5.533 6.780700 6.95670
Example F 10.673 13.130000 13.12900 6.191 8.625300 8.51500 Example
G 10.931 12.657700 13.06700 6.012 6.696000 7.33100 Example H 9.494
12.851700 14.12670 15.510 18.642000 20.06800 Example I 13.509
13.933700 15.92600 13.516 16.307700 16.75200 Example J 12.471
13.630700 14.99430 17.192 18.972700 19.43500 Example K 14.217
14.322700 17.07100 11.616 16.035300 16.29770
[0233]
24 TABLE X % Extensibility (EMT) % Extensibility (EMT) Warp Filling
Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50 Washes 125
Washes Example A 5.8950 8.562 8.977 2.9100 4.808 4.575 Example B
6.2217 8.905 8.788 2.9967 4.982 4.797 Example C 5.9317 9.125 8.725
3.3033 5.045 4.703 Example D 5.1833 8.161 8.024 2.9167 4.455 4.553
Example E 3.9750 7.585 7.320 3.0500 4.508 3.862 Example F 6.0233
8.135 8.160 3.6250 5.608 5.385 Example G 5.8650 8.161 8.024 3.1783
4.455 4.553 Example H 6.3400 8.465 9.192 9.8617 12.215 13.150
Example I 7.8883 8.083 8.982 6.6200 9.277 9.210 Example J 7.3300
8.942 9.871 11.3317 12.400 12.537 Example K 7.6650 8.323 9.702
6.0950 9.250 8.527
[0234]
25 TABLE Y Bending Hysteresis (2HB05) Bending Hysteresis (2HB05)
Warp Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50
Washes 125 Washes Example A 0.07200 0.045330 0.04067 0.06400
0.052333 0.04433 Example B 0.07400 0.046670 0.04600 0.06967
0.045667 0.04400 Example C 0.07133 0.047000 0.04900 0.05567
0.055333 0.03900 Example D 0.25633 0.061670 0.05067 0.20100
0.059667 0.04500 Example E 0.22133 0.069670 0.05800 0.13933
0.054667 0.04333 Example F 0.28000 0.165670 0.12800 0.14500
0.052000 0.04300 Example G 0.25667 0.078330 0.05867 0.22467
0.076333 0.05100 Example H 0.11900 0.113330 0.09300 0.05200
0.049333 0.05200 Example I 0.30133 0.208670 0.19967 0.22333
0.135667 0.14833 Example J 0.10467 0.114330 0.15000 0.06200
0.051333 0.06733 Example K 0.39700 0.244330 0.35900 0.32400
0.152333 0.19800
[0235]
26 TABLE Z Bending Hysteresis (2HB10) Bending Hysteresis (2HB10)
Warp Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50
Washes 125 Washes Example A 0.07467 0.056330 0.05033 0.06500
0.064000 0.06033 Example B 0.08267 0.058000 0.05600 0.07400
0.059333 0.05967 Example C 0.08067 0.058670 0.06133 0.07000
0.072000 0.01533 Example D 0.38700 0.078330 0.06567 0.26567
0.077333 0.05800 Example E 0.30867 0.089000 0.07633 0.18467
0.067667 0.05433 Example F 0.39633 0.223330 0.18700 0.17433
0.067667 0.05633 Example G 0.33067 0.098000 0.07333 026167 0.096000
0.06500 Example H 0.11700 0.146330 0.11600 0.05967 0.058333 0.06033
Example I 0.37533 0.295330 0.28667 0.32200 0.175667 0.18533 Example
J 0.37533 0.156330 0.17933 0.06100 0.061333 0.07767 Example K
0.49600 0.332000 0.44800 0.44433 0.189667 0.24333
[0236]
27 TABLE AA Bending Hysteresis (2HB15) Bending Hysteresis (2HB15)
Warp Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50
Washes 125 Washes Example A 0.07567 0.067670 0.05967 0.06333
0.074333 0.07000 Example B 0.08367 0.068670 0.06200 0.06567
0.068000 0.07400 Example C 0.08433 0.068000 0.07167 0.08400
0.084667 0.06267 Example D 0.40967 0.092670 0.07967 0.27933
0.099333 0.07400 Example E 0.31733 0.110670 0.09600 0.19767
0.078667 0.06467 Example F 0.42800 0.272670 0.24033 0.18567
0.082000 0.07067 Example G 0.32300 0.116330 0.08800 0.25333
0.119333 0.07967 Example H 0.11133 0.179330 0.13333 0.05133
0.070000 0.06833 Example I 0.39967 0.381670 0.37400 0.34700
0.218333 0.22733 Example J 0.10467 0.187330 0.19333 0.05667
0.073333 0.08333 Example K 0.51467 0.422330 0.48267 0.48967
0.233333 0.29467
[0237]
28 TABLE BB Residual Bending (RB05) Residual Bending (RB05) Warp
Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50 Washes
125 Washes Example A 0.52267 0.499330 0.48167 0.65300 0.577000
0.50700 Example B 0.48467 0.528670 0.55067 0.67033 0.554670 0.49233
Example C 0.46500 0.539670 0.53133 0.42467 0.545000 0.48533 Example
D 0.28033 0.562670 0.49800 0.43867 0.556000 0.52333 Example E
0.30667 0.590000 0.51667 0.37733 0.637670 0.59033 Example F 0.32100
0.612670 0.49200 0.45633 0.572000 0.53333 Example G 0.42333
0.628330 0.58600 0.60833 0.655000 0.58133 Example H 0.57333
0.699000 0.78633 0.41467 0.587330 0.64667 Example I 0.28500
0.582330 0.59933 0.21333 0.633000 0.69267 Example J 0.63133
0.665000 0.88633 0.53767 0.617330 0.73233 Example K 0.26100
0.684000 0.89667 0.19100 0.675000 0.76933
[0238]
29 TABLE CC Residual Bending (RB10) Residual Bending (RB10) Warp
Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50 Washes
125 Washes Example A 0.53933 0.621330 0.58967 0.65467 0.707000
0.68233 Example B 0.54333 0.660330 0.66467 0.71600 0.715330 0.66367
Example C 0.52233 0.675330 0.66500 0.52167 0.714330 0.63567 Example
D 0.42067 0.714000 0.64367 0.57767 0.720000 0.67600 Example E
0.42767 0.748330 0.68233 0.50067 0.789670 0.74600 Example F 0.44433
0.827670 0.71633 0.54300 0.747000 0.69767 Example G 0.54467
0.783330 0.73167 0.70667 0.825330 0.74033 Example H 0.56300
0.901670 0.97667 0.47300 0.692670 0.75300 Example I 0.35800
0.824330 0.85567 0.30567 0.820330 0.86333 Example J 0.63833
0.903000 1.05867 0.52967 0.738330 0.83967 Example K 0.33100
0.924000 1.12200 0.26533 0.839670 0.94600
[0239]
30 TABLE DD Residual Bending (RB15) Residual Bending (RB15) Warp
Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50 Washes
125 Washes Example A 0.54700 0.747000 0.70167 0.62800 0.823000
0.79767 Example B 0.55100 0.782000 0.74033 0.62467 0.824000 0.82500
Example C 0.54800 0.784000 0.77767 0.62800 0.845330 0.77333 Example
D 0.44433 0.844000 0.78300 0.60500 0.925330 0.85667 Example E
0.43867 0.923330 0.85833 0.53367 0.920670 0.88400 Example F 0.47800
1.008000 0.92300 0.56967 0.903000 0.87533 Example G 0.53167
0.928330 0.88167 0.68467 1.021330 0.90500 Example H 0.53633
1.102670 1.12200 0.40333 0.826000 0.86167 Example I 0.38467
1.064670 1.11433 0.32767 1.021000 1.05967 Example J 0.63400
1.079000 1.13933 0.49167 0.881000 0.90800 Example K 0.34567
1.174670 1.21867 0.29800 1.033000 1.14533
[0240]
31 TABLE EE Maximum Thickness (Tmax) (mm) Maximum Density (DENMAX)
Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50 Washes 125
Washes Example A 0.536333 0.586000 0.58567 0.371000 0.367000
0.36700 Example B 0.582333 0.666333 0.67167 0.350333 0.333000
0.32967 Example C 0.588000 0.662000 0.64767 0.349000 0.333667
0.34000 Example D 0.551000 0.588000 0.57867 0.381333 0.377000
0.38367 Example E 0.555667 0.577333 0.57500 0.361000 0.351333
0.35067 Example F 0.585667 0.582333 0.59133 0.352667 0.362000
0.35567 Example G 0.543667 0.577667 0.56533 0.394667 0.381000
0.39200 Example H 0.496000 0.633667 0.65533 0.462333 0.377333
0.34600 Example I 0.604000 0.716000 0.75100 0.530000 0.465000
0.43633 Example J 0.518333 0.690333 0.67833 0.451000 0.34433
0.34367 Example K 0.631000 0.752667 0.79700 0.534333 0.448333
0.43000
[0241]
32 TABLE FF Minimum Thickness Minimum Density (Tmin) (mm) (DENMIN)
Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50 Washes 125
Washes Example A 0.904330 1.025000 1.01233 0.220333 0.210000
0.21233 Example B 0.972670 1.212670 1.16200 0.209667 0.182667
0.19067 Example C 1.022330 1.197330 1.12367 0.201000 0.184333
0.19567 Example D 0.794330 0.987670 0.96000 0.264667 0.224333
0.23133 Example E 0.852000 0.992670 0.96533 0.235667 0.204667
0.20900 Example F 0.927330 1.004330 1.02233 0.223000 0.210000
0.20600 Example G 0.853330 0.973000 0.91500 0.251000 0.226667
0.24267 Example H 0.833000 1.054670 0.99900 0.275000 0.227333
0.22700 Example I 0.887670 1.018000 1.01133 0.361000 0.326667
0.32400 Example J 0.862670 1.111000 1.01600 0.271333 0.214000
0.22933 Example K 0.930670 1.127670 1.09167 0.362333 0.299333
0.31367
[0242]
33 TABLE GG Compressional Work per Linearity of Unit Area (WC)
Compression (LC 05) Parameter 0 Washes 50 Washes 125 Washes 0
Washes 50 Washes 125 Washes Example A 0.300000 0.407000 0.38300
0.32533 0.369670 0.35933 Example B 0.385000 0.517330 0.48633
0.39733 0.379670 0.39833 Example C 0.411000 0.510670 0.45800
0.38033 0.381670 0.38533 Example D 0.203670 0.359330 0.33200
0.33633 0.362330 0.34967 Example E 0.215000 0.357330 0.32633
0.29533 0.345670 0.33533 Example F 0.282330 0.368330 0.38300
0.33233 0.347330 0.35733 Example G 0.254670 0.386670 0.34100
0.32767 0.393000 0.39200 Example H 0.286670 0.370000 0.33900
0.33933 0.353000 0.39667 Example I 0.257670 0.322330 0.28767
0.36767 0.432000 0.44000 Example J 0.299000 0.401330 0.33233
0.34933 0.382670 0.39833 Example K 0.265670 0.362330 0.31333
0.35433 0.389670 0.42667
[0243]
34 TABLE HH Decompressional Work Compression per Unit Area
(WCPrime) Resilience (RC) % Parameter 0 Washes 50 Washes 125 Washes
0 Washes 50 Washes 125 Washes Example A 0.153333 0.177000 0.16300
51.2443 43.446300 42.50530 Example B 0.209667 0.219667 0.20800
53.0833 42.429700 42.76830 Example C 0.218000 0.223000 0.19767
54.3957 43.721000 43.21800 Example D 0.115333 0.155667 0.14267
56.6363 43.275300 43.03830 Example E 0.117333 0.159000 0.14233
54.5963 44.414000 43.63930 Example F 0.137667 0.165333 0.16633
48.9260 44.944300 43.43170 Example G 0.132333 0.159667 0.13967
51.8593 41.299000 40.81070 Example H 0.126667 0.130333 0.12000
44.2787 35.217700 35.42070 Example I 0.125000 0.105333 0.10333
48.4010 32.861000 35.95200 Example J 0.129333 0.132667 0.11467
43.2660 33.014300 34.47900 Example K 0.123333 0.122667 0.11233
46.2480 33.939000 35.80870
[0244]
35 TABLE II Thickness Change During Weight (g) Compression (Tdiff)
(mm) Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50 Washes 125
Washes Example A 19.9167 21.508300 21.50000 0.36833 0.439000
0.42667 Example B 20.4083 22.175000 22.15000 0.39033 0.546670
0.49033 Example C 20.5333 22.075000 22.01670 0.43433 0.535670
0.47667 Example D 21.0167 22.158300 22.18330 0.24333 0.400000
0.38133 Example E 20.0667 20.283300 20.14170 0.29600 0.415330
0.39067 Example F 20.6583 21.066700 21.02500 0.34133 0.422000
0.43167 Example G 21.4500 22.008300 22.17500 0.30933 0.395000
0.34967 Example H 22.9417 23.891700 22.65830 0.33733 0.422000
0.34400 Example I 32.0333 33.266700 32.76670 0.28300 0.302330
0.26033 Example J 23.3833 23.758300 23.30000 0.34433 0.420670
0.33800 Example K 33.7250 33.708300 34.22500 0.30000 0.375330
0.29500
[0245]
36 TABLE JJ Shear Hysteresis Shear Hysteresis (2HG05) Warp (2HG05)
Filling 0 50 125 0 50 125 Parameter Washes Washes Washes Washes
Washes Washes Example 1.2407 1.414670 1.21000 0.5727 0.600670
0.45330 A Example 1.2983 1.562330 1.30400 0.6270 0.724670 0.59230 B
Example 1.4110 1.537670 1.34200 0.6723 0.715000 0.62330 C Example
3.7677 1.834670 1.61933 3.2570 1.103000 0.76230 D Example 1.3290
1.592670 1.48567 0.8907 0.869000 0.72970 E Example 1.8803 0.777670
0.80800 1.3053 0.485330 0.44800 F Example 2.8020 2.203000 2.17800
2.1960 1.340330 1.33870 G Example 1.2357 2.010330 2.24200 0.8807
1.396330 1.38970 H Example 2.2307 4.899670 5.02767 2.3563 4.347000
4.49430 I Example 1.5200 2.195670 2.43733 1.1197 1.395670 1.46300 J
Example 3.2923 6.005000 7.25067 3.5930 5.752000 6.50470 K
[0246]
37 TABLE KK Shear Hysteresis (2HG25) Shear Hysteresis (2HG25) Warp
Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50 Washes
125 Washes Example A 1.9400 1.064700 1.79367 1.2880 2.055000
0.90630 Example B 2.2257 1.346300 1.91900 1.5510 2.280300 1.07870
Example C 2.2390 1.299000 1.98067 1.5400 2.252700 1.19470 Example D
7.8223 2.323300 2.60267 7.3877 3.065300 1.66030 Example E 5.0633
1.496000 2.09100 4.4080 2.290700 1.29530 Example F 5.3043 0.948700
1.27000 4.5470 1.275300 0.81500 Example G 6.6990 2.630000 3.39833
5.9423 3.522000 2.57800 Example H 1.8830 2.307000 2.98100 1.5247
2.819700 2.15000 Example I 5.9453 8.038700 8.10300 5.8533 8.313000
7.87800 Example J 2.3677 2.259700 3.24800 2.0150 3.041000 2.26470
Example K 7.2243 9.493700 10.82367 7.3383 9.329000 10.35630
[0247]
38 TABLE LL Shear Hysteresis (2HG50) Shear Hysteresis (2HG50) Warp
Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50 Washes
125 Washes Example A 3.089 3.456000 3.07830 2.560 2.344300 2.00830
Example B 3.641 3.792000 3.19170 3.029 2.831700 2.36200 Example C
3.614 3.845700 3.35530 3.029 2.810300 2.53730 Example D 11.349
5.678700 4.91330 10.753 5.091000 3.94800 Example E 10.141 3.730700
3.42100 9.827 3.054000 2.67300 Example F 11.387 2.752700 2.48570
10.804 2.388300 1.95400 Example G 10.268 5.884300 5.90670 9.731
5.192300 5.29000 Example H 3.021 4.163300 4.07170 2.538 3.850300
3.39070 Example I 10.130 10.638700 10.58770 9.561 10.374000
10.31430 Example J 3.483 4.272700 4.38070 3.275 3.603000 3.55800
Example K 12.040 11.258300 12.62270 11.815 11.752000 12.10130
[0248]
39 TABLE MM Residual Shear Angle (RG05) Residual Shear Angle (RG05)
Warp Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50
Washes 125 Washes Example A 1.59567 2.153700 2.05033 0.90133
1.227000 1.04467 Example B 1.35633 2.118000 2.12667 0.80100
1.243670 1.21200 Example C 1.52500 2.197000 2.05967 0.87800
1.255670 1.19533 Example D 1.08433 1.766000 1.87933 0.95733
1.099670 1.04733 Example E 0.54300 2.304000 2.34333 0.40700
1.421000 1.27533 Example F 0.86633 1.524700 1.62367 0.70667
1.033670 1.10933 Example G 0.85833 2.105000 2.03200 0.81133
1.274000 1.32533 Example H 1.64633 2.407300 2.68900 1.32633
1.686670 1.89500 Example I 0.81667 1.773700 1.95267 0.87533
1.567670 1.68700 Example J 1.69000 2.608700 2.80967 1.36700
1.812000 1.94000 Example K 1.10700 2.067700 2.21867 1.24100
1.857330 1.96800
[0249]
40 TABLE NN Residual Shear Angle (RG25) Residual Shear Angle (RG25)
Warp Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50
Washes 125 Washes Example A 2.49667 3.127330 3.03333 2.02633
2.173330 2.08567 Example B 2.32200 3.088330 3.13100 1.98033
2.309330 2.20200 Example C 2.41933 3.216330 3.03933 2.00633
2.279670 2.28933 Example D 2.25600 2.950670 3.01767 2.17667
2.316000 2.27667 Example E 2.07300 3.311670 3.30033 2.00333
2.437000 2.26967 Example F 2.37233 2.496330 2.55000 2.24533
2.019330 2.02133 Example G 2.28367 3.214000 3.17067 2.19267
2.501000 2.55067 Example H 2.49833 3.367670 3.57267 2.29667
2.784670 2.93067 Example I 2.17433 3.009000 3.14733 2.17433
2.898670 2.95833 Example J 2.62300 3.606670 3.74500 2.45600
2.932670 2.99867 Example K 2.41033 3.212000 3.31233 2.52000
3.066330 3.13333
[0250]
41 TABLE OO Residual Shear Angle (RG50) Residual Shear Angle (RG50)
Warp Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50
Washes 125 Washes Example A 3.9760 5.267000 5.21770 4.0303 4.785300
4.61900 Example B 3.7973 5.134700 5.21070 3.8673 4.859700 4.82470
Example C 3.9040 5.488000 5.14600 3.9453 4.934000 4.86870 Example D
3.2743 5.466300 5.69530 3.1717 5.089700 5.41270 Example E 4.1503
5.392300 5.40700 4.4680 4.978000 4.70430 Example F 5.1237 5.384700
4.99200 5.3377 5.084700 4.85630 Example G 3.5250 5.367300 5.51200
3.6003 4.946000 5.23730 Example H 4.0087 4.977000 4.87930 3.8227
4.648700 4.62200 Example I 3.7033 3.850300 4.11200 3.5537 3.740700
3.87700 Example J 3.8647 5.069000 5.05130 3.9990 4.672700 4.70970
Example K 4.0127 3.876300 3.86300 4.0720 3.797300 3.66170
[0251]
42 TABLE PP Mean Deviation of Coefficient Mean Deviation of
Coefficient of Friction (MMD) Warp of Friction (MMD) Filling
Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50 Washes 125
Washes Example A 0.021333 0.026667 0.02867 0.024000 0.020667
0.02367 Example B 0.024000 0.024000 0.02400 0.027667 0.023667
0.02500 Example C 0.024333 0.023667 0.02433 0.025000 0.023333
0.02300 Example D 0.039667 0.071667 0.07433 0.038667 0.032333
0.02733 Example E 0.024333 0.019333 0.02267 0.029000 0.027000
0.02600 Example F 0.035000 0.021667 0.02833 0.034667 0.032333
0.02767 Example G 0.056667 0.076667 0.09700 0.038000 0.031333
0.03100 Example H 0.014333 0.015333 0.01400 0.018333 0.021333
0.02067 Example I 0.016000 0.012000 0.01433 0.022000 0.018333
0.01767 Example J 0.016000 0.016333 0.01833 0.019333 0.022333
0.02500 Example K 0.012667 0.012333 0.01133 0.022333 0.018000
0.01767
[0252]
43 TABLE QQ Surface Roughness (SMD) Surface Roughness (SMD) Warp
Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50 Washes
125 Washes Example A 12.6457 12.194700 11.75230 6.2930 6.042700
5.76130 Example B 9.4970 9.081000 8.73870 5.8047 5.950000 6.37500
Example C 9.9760 9.096000 9.45800 5.3733 5.618300 6.00500 Example D
12.4050 11.195000 10.84230 7.4990 7.373300 6.21030 Example E
12.8140 12.872000 12.50500 7.1800 7.856000 7.74670 Example F
10.6303 10.471300 10.46900 7.6433 6.938700 7.01330 Example G
10.6733 10.235700 10.59570 7.1230 6.476000 6.66370 Example H 2.3677
2.738300 2.33400 4.4337 5.433000 4.86400 Example I 2.5200 1.987300
1.98030 5.3827 4.622000 4.18800 Example J 3.8980 2.532000 2.61830
5.0787 5.642000 4.88630 Example K 2.5487 2.035700 1.85130 6.0113
4.168700 4.01170
[0253]
44 TABLE RR Linearity of Extension (LT) Linearity of Extension (LT)
Warp Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50
Washes 125 Washes Example A 0.705 0.580670 0.58800 0.730 0.583000
0.62600 Example B 0.679 0.606330 0.61100 0.731 0.595330 0.63433
Example C 0.736 0.590670 0.62233 0.666 0.583670 0.64700 Example D
0.700 0.613330 0.61033 0.679 0.613670 0.65800 Example E 0.813
0.584000 0.64300 0.728 0.593330 0.70500 Example F 0.703 0.637670
0.63500 0.674 0.608330 0.62533 Example G 0.733 0.633670 0.66667
0.753 0.647000 0.61267 Example H 0.588 0.598670 0.60900 0.622
0.601670 0.60567 Example I 0.672 0.682000 0.70133 0.807 0.693000
0.71867 Example J 0.675 0.601670 0.64333 0.599 0.603000 0.61433
Example K 0.727 0.677000 0.69700 0.748 0.685330 0.75567
[0254]
45 TABLE SS Tensile Resiliency (RT) Tensile Resiliency (RT) Warp
Filling Parameter 0 Washes 50 Washes 125 Washes 0 Washes 50 Washes
125 Washes Example A 51.854 49.300700 48.44500 57.483 56.347700
55.96100 Example B 52.120 48.758000 48.70300 57.281 54.911300
54.25900 Example C 51.531 48.273300 47.83300 57.200 53.761700
53.68600 Example D 55.109 48.086000 49.20500 58.795 54.777000
55.18900 Example E 52.802 49.159700 47.17600 58.120 55.645300
56.80200 Example F 42.334 44.300700 46.11400 50.833 51.461000
51.80000 Example G 48.799 47.513000 47.20500 58.244 54.983000
54.36800 Example H 43.341 38.401700 39.45900 50.383 41.756300
37.85300 Example I 42.005 36.987300 33.71800 51.343 40.68700
39.71600 Example J 37.993 37.798300 36.32200 48.606 40.566300
37.97300 Example K 40.292 35.886700 32.63800 57.588 42.283300
39.91200
[0255] In addition, the hand improvements were achieved while the
strength of the fabric was maintained, and in fact, some strength
measurements were improved. In addition, the fabrics of the
invention had superior ATPV, lower char length, better warp fray,
superior drape and bending modulus, better wicking and soil
release, and better combination of comfort characteristics with a
particular level of FR.
[0256] Stated differently, the fabrics had comfort levels
approximating those of cotton, while at durability levels
approximating those of fabrics made from inherently FR fabrics.
Furthermore, because of the improved soil release characteristics
and reduced soil retention, it is expected that the fabrics would
be less likely to hold onto oily stains that might otherwise
adversely impact the FR potential of the fabrics.
[0257] In addition, the Handle-o-meter measurements on the unwashed
fabrics of the present invention are substantially better than
those of the conventional fabrics, which is indicative of the
superior drape (and thus perceived comfort) that they possess.
[0258] The fabrics of the present invention have utility in a
variety of end uses, including but not limited to protective
apparel, industrial work apparel (i.e. that designed to be worn in
an industrial environment and laundered under industrial wash
conditions), military apparel, transportation vehicle interiors
(including but not limited to aviation, boat, car, bus, train, RV
etc. interiors), industrial fire barriers, home and office
furnishings, office panels, and virtually anywhere that FR
protection would be of advantage.
[0259] In the specification there has been set forth a preferred
embodiment of the invention, and although specific terms are
employed, they are used in a generic and descriptive sense only and
not for purpose of limitation, the scope of the invention being
defined in the claims.
* * * * *