U.S. patent application number 13/739350 was filed with the patent office on 2013-07-18 for glove.
This patent application is currently assigned to SHOWA GLOVE CO.. The applicant listed for this patent is SHOWA GLOVE CO.. Invention is credited to Yasuyuki II, Hidetoshi KISHIHARA.
Application Number | 20130180028 13/739350 |
Document ID | / |
Family ID | 47623919 |
Filed Date | 2013-07-18 |
United States Patent
Application |
20130180028 |
Kind Code |
A1 |
KISHIHARA; Hidetoshi ; et
al. |
July 18, 2013 |
GLOVE
Abstract
Disclosed is a glove comprising a fibrous glove and a coating
layer of a rubber or a vinyl chloride-based resin formed on an
outer surface side of the fibrous glove, wherein at least an inner
surface side of the fibrous glove includes a microfiber having a
diameter of a monofilament of not more than 6 .mu.m. The glove of
the present invention is not only excellent in slip resistance on
both the outer surface side and the inner surface side, but also
excellent in adhesion strength to rubber or resin formed on the
outer surface side.
Inventors: |
KISHIHARA; Hidetoshi;
(Himeji-shi, JP) ; II; Yasuyuki; (Himeji-shi,
JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SHOWA GLOVE CO.; |
Himeji-shi |
|
JP |
|
|
Assignee: |
SHOWA GLOVE CO.
Himeji-shi
JP
|
Family ID: |
47623919 |
Appl. No.: |
13/739350 |
Filed: |
January 11, 2013 |
Current U.S.
Class: |
2/168 ; 2/167;
2/169 |
Current CPC
Class: |
A41D 19/0065 20130101;
A41D 19/0006 20130101; A41D 2400/82 20130101 |
Class at
Publication: |
2/168 ; 2/167;
2/169 |
International
Class: |
A41D 19/00 20060101
A41D019/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 16, 2012 |
JP |
2012-005943 |
Claims
1. A glove comprising a fibrous glove and a coating layer of a
rubber or a vinyl chloride-based resin formed on an outer surface
side of the fibrous glove, wherein at least an inner surface side
of the fibrous glove includes a microfiber having a diameter of a
monofilament of not more than 6 .mu.m.
2. The glove according to claim 1, wherein an outer surface side of
the fibrous glove includes a microfiber.
3. The glove according to claim 1, wherein an outer surface side of
the fibrous glove includes a non-microfiber having a diameter of a
monofilament more than 6 .mu.m.
4. The glove according to claim 3, wherein the non-microfiber
comprises at least one member selected from the group consisting of
nylon, polyester and cotton.
5. The glove according to claim 3, wherein the non-microfiber
comprises a polyurethane elastic yarn covered with at least one
member selected from the group consisting of nylon, polyester and
cotton.
6. A glove comprising a fibrous glove and a coating layer of a
rubber or a vinyl chloride-based resin formed on an outer surface
side of the fibrous glove, wherein an inner surface side and an
outer surface side of a fibrous glove are knitted separately by
plating, 50% by weight or more of a yarn used in the inner surface
side comprises a microfiber having a diameter of a monofilament of
not more than 6 .mu.m.
7. The glove according claim 1, wherein the microfiber comprises a
split fiber.
8. The glove according to claim 1, wherein adhesion strength of the
coating layer is not less than 0.32 N/mm.
9. A method for producing the glove according to claim 2,
comprising the step of: forming the coating layer of a rubber on
the outer surface side of the fibrous glove by a heat sensitive
method.
10. A method for producing the glove according to claim 2,
comprising the steps of: applying an oil-repellent treatment to the
outer surface side of the fibrous glove, and forming the coating
layer of a vinyl chloride-based resin thereon.
11. A method for producing the glove according to claim 3,
comprising the step of forming the coating layer of a rubber on the
outer surface side of the fibrous glove by a heat sensitive method
or a coagulation method.
12. A method for producing the glove according to claim 3,
comprising the steps of: applying or not applying an oil-repellent
treatment to the outer surface side of the fibrous glove, and
forming the coating layer of a vinyl chloride-based resin thereon.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a glove whose outer surface
side and inner surface side are both superior in slip resistance,
and more particularly, relates to a glove that is superior in slip
resistance of the inner surface side of the glove and also is
superior in the adhesion strength of the outer surface side of the
glove from a coating layer of a rubber or a resin formed on the
outer surface side of the glove.
[0003] 2. Description of the Related Art
[0004] Conventionally, fibrous gloves having a coating layer have
been used widely in the fields of metal processing, physical
distribution, assembly, packing, civil engineering and
construction, precision, medical treatment, plantation, etc.
[0005] Among those, in the fields where dust of fibers of fibrous
gloves becomes a problem, there have been used long fibers such as
polyester and polyamide (nylon). However, such fibers are
problematic in that their slip resistance is insufficient due to
their smaller frictional resistance with hand skin in comparison
with spun yarns of short fibers such as cotton, acrylic fibers and
polyester, and therefore fingers slip easily within gloves,
resulting in poor workability.
[0006] In order to solve this problem, there has been proposed, for
example, a glove whose gripping property has been improved by
forming a foamed coating of a rubber or a resin on a fibrous glove
knitted from elastic fibers and inelastic fibers (for example,
JP-A-2008-75201).
[0007] Moreover, a highly adherent glove whose outer and inner
surface sides are formed of woven and knitted fabrics consisting of
ultra finefiber bundles has been proposed (for example,
JP-B-4-5763).
SUMMARY OF THE INVENTION
[0008] The glove disclosed in JP-A-2008-75201 has sufficient slip
resistance on its outer surface side because the outer surface side
is covered with a foamed coating of a rubber or a resin, but the
inner surface side of the glove is not always sufficient in slip
resistance. For example, there is a disadvantage that fingers slip
in a glove and the glove sometimes comes off during a work in which
a large force is applied in the longitudinal direction of a glove,
e.g., dragging an object.
[0009] The glove disclosed in JP-B-4-5763 is satisfactory in slip
resistance on the inner surface side thereof, but the slip
resistance of the outer surface side is not sufficient and, as a
result, it has a disadvantage that when gripping a heavy object,
the heavy object slips down.
[0010] In light of the above situations, it is an object of the
present invention to provide a glove that has excellent slip
resistance on both the outer surface side and the inner surface
side thereof and also is superior in adhesion strength of a coating
layer.
[0011] In order to improve the slip resistance of the inner surface
side of a glove for the attainment of the above-described object,
the present inventors have tried to form a coating layer of a
rubber or a vinyl chloride-based resin on the outer surface side of
a fibrous glove whose outer surface side and inner surface side of
the glove are made of microfibers. Although the slip resistance of
the inner surface side of the glove has been improved, such a
coating layer sometimes peels off during use due to low adhesion
strength between microfibers and a rubber or a vinyl chloride-based
resin, so that satisfactory gloves could not be obtained.
[0012] Then, the present inventors have further studied and
eventually have found that a glove with sufficient adhesion
strength can be obtained by forming a coating layer of a rubber or
a vinyl chloride-based resin by a specific method even if the outer
surface side is formed of microfibers.
[0013] Moreover, the present inventors have further found that a
coating layer superior in adhesion strength can be formed not by a
specific method but by an ordinary method by including
non-microfibers in the outer surface side on which the coating
layer is to be formed.
[0014] The present invention has been accomplished on the basis of
these findings.
[0015] The glove of the present invention has the following
features:
[0016] 1. A glove comprising a fibrous glove and a coating layer of
a rubber or a vinyl chloride-based resin formed on an outer surface
side of the fibrous glove, wherein at least an inner surface side
of the fibrous glove includes a microfiber having a diameter of a
monofilament of not more than 6 .mu.M.
[0017] 2. The glove of the above-mentioned 1, wherein an outer
surface side of the fibrous glove includes a microfiber.
[0018] 3. The glove of the above-mentioned 1, wherein an outer
surface side of the fibrous glove includes a non-microfiber having
a diameter of a monofilament more than 6 .mu.m.
[0019] 4. The glove of the above-mentioned 3, wherein the
non-microfiber comprises at least one member selected from the
group consisting of nylon, polyester and cotton.
[0020] 5. The glove of the above-mentioned 3, wherein the
non-microfiber comprises polyurethane elastic yarn covered with at
least one member selected from the group consisting of nylon,
polyester and cotton.
[0021] 6. A glove comprising a fibrous glove and a coating layer of
a rubber or a vinyl chloride-based resin formed on an outer surface
side of the fibrous glove, wherein an inner surface side and an
outer surface side of a fibrous glove are knitted separately by
plating, 50% by weight or more of a yarn used in the inner surface
side comprises a microfiber having a diameter of a monofilament of
not more than 6 .mu.m.
[0022] 7. The glove of any one of the above-mentioned 1. to 5,
wherein the microfiber comprises a split fiber.
[0023] 8. The glove of any one of the above-mentioned 1. to 7,
wherein adhesion strength of the coating layer is not less than
0.32 N/mm.
[0024] 9. A method for producing the glove according to claim 2,
comprising the step of:
[0025] forming the coating layer of a rubber on the outer surface
side of the fibrous glove by a heat sensitive method.
[0026] 10. A method for producing the glove of the above-mentioned
2, comprising the steps of:
[0027] applying an oil-repellent treatment to the outer surface
side of the fibrous glove, and
[0028] forming the coating layer of a vinyl chloride-based resin
thereon.
[0029] 11. A method for producing the glove of the above-mentioned
3, comprising the step of
[0030] forming the coating layer of a rubber on the outer surface
side of the fibrous glove by a heat sensitive method or a
coagulation method.
[0031] 12. A method for producing the glove of the above-mentioned
3, comprising the steps of
[0032] applying or not applying an oil-repellent treatment to the
outer surface side of the fibrous glove, and
[0033] forming the coating layer of a vinyl chloride-based resin
thereon.
[0034] The glove of the present invention is superior in slip
resistance and is prevented from causing troubles such as slipping
off of the glove during use due to the slip of fingers in the glove
because the inner surface side thereof contains a microfiber which
has high frictional resistance to fingers and the microfiber comes
into contact with fingers. On the other hand, since a coating layer
of a rubber or a vinyl chloride-based resin has been formed on the
outer surface side and the coating layer has excellent adhesion
strength to the outer surface side of the glove, a trouble that the
coating layer peels off during use is prevented and a high
performance glove excellent in slip resistance on both the inner
and outer surface sides can be provided.
DETAILED DESCRIPTION OF THE INVENTION
[0035] The glove of the present invention has a feature that it
comprises a fibrous glove and a coating layer of a rubber or a
vinyl chloride-based resin formed on an outer surface side of the
fibrous glove, wherein at least an inner surface side of the
fibrous glove includes a microfiber having a diameter of a
monofilament of not more than 6 .mu.m.
[0036] In the present invention, the term "an outer surface side"
indicates a side not in contact with fingers and the term "an inner
surface side" indicates a side in contact with fingers.
[0037] Further, in the present invention, the term "a diameter"
does not indicate a diameter of a bundle of microfibers, but a
diameter of a monofilament of microfibers.
[0038] Further, in the present invention, the term "sprittable
fiber" indicates a fiber before spritting and the term "sprit
fiber" indicates a microfiber after spritting.
[0039] Furthermore, in the present invention, the terms "a", "an",
"the" and the similar terms are to be construed to include the
singular and the plural, unless otherwise indicated or contradicted
in the context of the present invention.
[0040] The fibrous glove usable as a base material in the present
invention includes, at least on the inner surface side of the
fibrous glove, a microfiber having a diameter of a monofilament
(hereinafter, referred simply to as "diameter") of not more than 6
.mu.m. The diameter of the microfiber is not particularly limited
in its lower limit, but neither microfibers having a diameter of
less than 0.1 .mu.m nor splittable fibers capable of affording such
microfibers after splitting are commercially available.
Accordingly, the lower limit of the diameter of the microfiber is
about 0.1 .mu.m in view of current availability. On the other hand,
if the diameter exceeds 6 .mu.m, frictional resistance with fingers
becomes small and desired slip resistance cannot be obtained
sufficiently.
[0041] Generally, microfibers are available commercially in the
form of splittable fibers. For example, one splittable fiber is
split into several fibers by a hot water treatment with 1 to 5%
NaOH at 80 to 100.degree. C. for 10 to 40 minutes, thereby becoming
microfibers. Polyester and nylon are preferred as such microfibers,
and splittable fibers such as NANOFRONT (registered trademark of
Teijin Fibers, Ltd.) and COSMOALPHA (registered trademark of KB
SEIREN Co., Ltd.) are suitably used as commercial available
products.
[0042] Although fibers usually have a circular cross-section,
splittable fibers can be polygonal microfibers (sprit fibers) after
splitting due to the method of their production and the corners of
the polygon are considered to effectively contribute to slip
resistant effect. Accordingly, microfibers are preferably fibers
having corners.
[0043] Such microfibers may be used either as a single fiber or as
a composite fiber in which a core yarn of nylon, polyester,
polyurethane elastic yarns, cotton or the like has been covered
with a microfiber usually in 100 to 600 T (twists)/M (the number of
windings per meter), preferably 300 to 600 T/M.
[0044] When the yarn to be located on the inner surface side is a
yarn composed of a microfiber and a non-microfiber aligned
together, the proportion of the microfiber is preferably more than
50% by weight, more preferably, more than 80% by weight, and even
more preferably, more than 95% by weight.
[0045] In view of the knitting and weaving of a fibrous glove, it
is preferred to perform the splitting treatment of splittable
fibers into microfibers (sprit fibers) after knitting or weaving a
fibrous glove. After the split treatment, dyeing with a direct dye,
a disperse dye, an acid dye, or the like may be applied depending
upon respective materials.
[0046] Although the outer surface side of the fibrous glove may be
made of microfibers, it is preferred, in view of the adhesion
strength between the fibrous glove and a coating layer of a rubber
or a vinyl chloride resin, to include non-microfibers. Although
non-microfibers are just required to be fibers larger in diameter
than microfibers, those in filaments are about 15 to about 30 .mu.m
in diameter are preferred. Examples of such non-microfibers include
single yarn and covered composite yarn of synthetic fibers such as
acryl, polyester, nylon, aramid and polyethylene; natural fibers
such as cotton, hemp and silk; and regenerated fibers such as
rayon. Especially, polyurethane elastic yarns covered with at least
one member selected from nylon, polyester and cotton are preferred.
By the elastic yarns, slip resistance is further improved due to
their compressive force and fitting force.
[0047] In addition, as the non-microfibers, cut-resistant fibers
having a high crystallizability such as ultra high molecular weight
polyethylene having high strength, aramide, etc. These fibers tend
to slip and by providing the microfibers to the inner surface side
of these fibers, slip resistance as well as cut-resistant property
is imparted to both the outer surface side and the inner surface
side of a glove, and thus a glove excellent in workability can be
provided. Further, by using acrylic fiber, regenerated fibers such
as rayon, etc., on the outer surface side, a glove excellent in
protection against the cold can be provided.
[0048] As the method for including non-microfibers into the fibrous
glove, there are exemplified a method for plating non-microfibers
to the outer surface side using a seamless knitting machine of 7G
or more, a method for sewing a fabric obtained by plating
microfibers and non-microfibers by the use of a circular knitting
machine and using it so that the non-microfibers are located on the
outer surface side, and a method for obtaining two kinds of cloth;
one is made of microfibers and the other is made of
non-microfibers, and sticking them into a double-material
structure. The proportion of the non-microfiber of the outer
surface side is preferably more than 50% by weight, more
preferably, more than 80% by weight, and even more preferably, more
than 95% by weight.
[0049] Examples of the rubber in the present invention include
natural rubber, isoprene, chloroprene, acrylic ester,
styrene-butadiene copolymers, acrylonitrile-butadiene copolymers,
polyurethane, butyl rubber, polybutadiene rubber and silicone
rubber, and moreover, copolymers having up to 10% by weight of
carboxyl modification group and blends thereof are also used.
Generally, well-known additives including crosslinking agents such
as sulfur and zinc oxide, vulcanization accelerators, antiaging
agents, pigments, and thickeners are added to the rubber. In order
to provide air permeability or wet gripping property, it is
possible to form an open-cell coating by mechanically foaming by
the addition of a frothing agent, a foam stabilizer, a foaming
agent, etc. and it is also possible to reduce steaming feel by a
synergistic effect of the air permeability caused by this coating
and the moisture absorbing and quick drying ability of
microfibers.
[0050] Moreover, the adhesion strength of a rubber coating layer
formed by a heat sensitive method can be enhanced by adding a
thermosensitive gelling agent such as polyvinyl methyl ether,
organopolysiloxane, and surfactants having a cloud point of 30 to
50.degree. C.
[0051] Examples of the vinyl chloride-based resin in the present
invention include homopolymers of vinyl chloride, copolymers of
vinyl chloride with vinyl acetate or the like, and blends thereof.
Generally, well-known additives including plasticizers,
stabilizers, thickeners and pigments are added to the vinyl
chloride-based resin. As in the case of rubber, steaming feel can
be reduced, or air permeability or wet gripping property can be
enhanced by foaming.
[0052] On the outer surface side of a fibrous glove is formed the
above-described coating of a rubber or a vinyl chloride-based
resin. Although the position where the coating layer is to be
formed is not limited particularly, it is usually the palm region
or fingertip regions of a glove, such portions being to come into
contact with objects and being required to have slip
resistance.
[0053] The method of forming a coating layer of rubber includes a
coagulation method and a heat sensitive method.
[0054] In one preferred example of the coagulation method, a
fibrous glove is put on a hand-shaped mold made of metal,
porcelain, etc. and dipped in a coagulant. Examples of the
coagulant include solutions in warm water or methanol containing
metal salts such as calcium nitrate, calcium chloride, sodium
chloride, and magnesium hydroxide, acetic acid, cyclohexylamine
sulfate, etc. The concentration is usually 0.1 to 10 parts by
weight based on 100 parts by weight of warm water or methanol. When
less than 0.1 part by weight, a rubber formulation liquid tends to
permeate easily. When exceeding 10 parts by weight, adhesion
strength between a rubber coating and a fibrous glove tends to
lower. Accordingly, the concentration of a coagulant is adjusted to
a coagulant concentration balanced so that a rubber coating may not
fully cover a fiber bundle on the inner surface side of a fibrous
glove, in other words, a rubber coating may not permeate a fiber
bundle completely and adhesion strength may not lower. Generally, a
solution of calcium nitrate in methanol or warm water is used
suitably. Next, after pulling up the fibrous glove, excess
coagulant is allowed to drop for 3 to 20 seconds with the
fingertips of the fibrous glove put on the hand-shaped mold facing
downward and then the fingertips of the fibrous glove put on the
hand-shaped mold is caused to face upward for 3 to 20 seconds,
thereby allowing the coagulant gathered in the fingertips to become
uniform at the dipping surface of the coagulant.
[0055] Then, after dipping in a compound of rubber, pulling out,
and then drying at about 60 to 130.degree. C. for about 6 to 20
minutes, the fibrous glove is removed from the hand-shaped mold,
followed by leaching at about 25 to 60.degree. C. for about 10 to
60 minutes. Then, if necessary, the glove is put again on a
hand-shaped mold having a shape that the thumb, the remaining four
fingers and the palm are curved inward so that the center of the
palm becomes concave (curve approximately in the shape formed when
a person has relaxed hand force) and is subjected to a heat
treatment at about 100 to about 140.degree. C. for about 20 to
about 60 minutes. The heat treatment means vulcanization and the
state where moisture has merely removed by drying and a great
improvement in strength has not been achieved is an unvulcanized
state. Leaching may be carried out after the heat treatment. The
heat treatment may be performed directly without removing the glove
from the hand-shaped mold after drying. The coating may be formed
in which two or three layers including a slip-resistant layer have
been stacked. To allow a compound of rubber to permeate a fiber
bundle completely, thereby covering the fibrous glove with the
rubber to the inner surface side of is undesirable because parts
where fibers come into contact with fingers are eliminated, so that
feeling of discomfort is raised and slip is caused by sweat inside
of the glove.
[0056] In the heat sensitive method, a fibrous glove is put on a
hand-shaped mold, heated to about 50 to about 90.degree. C., dipped
in a compound of rubber, and then dried. Drying conditions,
leaching, heat treatment, etc. after the drying are the same as
those of the above-described coagulation method.
[0057] When the outer surface side of a fibrous glove is made of
microfibers, the heat sensitive method is preferred compared to the
coagulation method because a glove superior in the adhesion
property of a rubber coating can be obtained.
[0058] On the other hand, when the outer surface side of a fibrous
glove contains non-microfibers, a glove superior in adhesion
property can be obtained by either the coagulation method or the
heat sensitive method.
[0059] Although the method of forming a coating layer of a vinyl
chloride-based resin is not restricted particularly, a glove
superior in adhesion property in the case where the outer surface
side of a fibrous glove is made of microfibers can be obtained by
applying oil-repellent treatment with an oil repellent agent in
advance to a fibrous glove. Specifically, for example, a fibrous
glove is dipped in an oil repellent agent such as fluorine-based
resin, silicone-based resin, etc., in an amount of 1 to 3% owf
based on the weight of the fibrous glove, wrung and dried at 80 to
130.degree. C. Subsequently, this fibrous glove is put on a
hand-shaped mold, then a vinyl chloride-based resin (paste) is
applied, and heat treatment is carried out at about 180 to about
210.degree. C. for about 10 to about 20 minutes.
[0060] In the case of using a polyurethane elastic fiber on the
outer surface side of a fibrous glove, since elastic fibers are
sensitive to heat and deteriorate easily, it is preferred to use a
fiber in which a core yarn made of elastic fiber is covered with
nylon, polyester fiber, or the like for the purpose of preventing
the elastic fiber from exposing. Thereby, elastic fibers can
maintain their elastic force also after heat treatment. In another
method, it is also possible to lower the heat treatment temperature
to about 140 to about 160.degree. C. and thereby secure elastic
force after heat treatment by the use of a copolymer of vinyl
chloride and vinyl acetate.
[0061] In the case of including non-microfibers into the outer
surface side of a fibrous glove, a glove with satisfactory adhesion
strength can be obtained either by applying oil-repellent treatment
in advance or by failing to apply such treatment.
[0062] The present invention will be described in more detail below
with reference to examples and comparative examples, but the
invention is not limited thereby.
[0063] Formulations 1 to 5 of coating layers (rubber and vinyl
chloride-based resin) to be used for the examples and comparative
examples are shown in Tables 1 to 5, and the methods i to v for the
formation of coating layers of rubber and vinyl chloride-based
resin are shown in Table 6.
(1) Formulations of Coating Layer
TABLE-US-00001 [0064] TABLE 1 Formulation 1 NR latex *1 100 parts
by wt. ** 10% KOH 1 parts by wt. ** Colloidal sulfur 1.0 parts by
wt. Zinc oxide 0.75 parts by wt. Vulcanization accelerator
(diethyldithio carbamic 0.2 parts by wt. acid zinc salt)
Antioxidant (2,2'-methylenebis (4-ethyl 6-tert- 1.0 parts by wt.
butylphenol)) Heat sensitizer (polyvinyl methyl ether) 1.5 parts by
wt. Solid content 53% by wt. ** Solid content
TABLE-US-00002 TABLE 2 Formulation 2 Polyvinyl chloride paste resin
*2 100 parts by wt. ** Plasticizer *3 100 parts by wt. Thickener *4
1.0 parts by wt. Stabilizer *5 3.0 parts by wt. ** Solid
content
TABLE-US-00003 TABLE 3 Formulation 3 NBR latex 100 parts by wt. **
Colloidal sulfur 1.0 parts by wt. Zinc oxide 0.75 parts by wt.
Vulcanization accelerator (diethyldithio carbamic 0.2 parts by wt.
acid zinc salt) Antioxidant (2,2'-methylenebis (4-ethyl 6-tert- 1.0
parts by wt. butylphenol)) Thickener *6 (polyacrylic acid
ester-based) 0.3 parts by wt. Foam stabilizer (lauryl dipropionic
acid sodium salt) 3.0 parts by wt. Solid content 38% by wt. **
Solid content
TABLE-US-00004 TABLE 4 Formulation 4 NBR latex 100 parts by wt. **
Colloidal sulfur 1.0 parts by wt. Zinc oxide 0.75 parts by wt.
Vulcanization accelerator (diethyldithio carbamic 0.2 parts by wt.
acid zinc salt) Antioxidant (2,2'-methylenebis (4-ethyl 6-tert- 1.0
parts by wt. butylphenol)) Thickener *6 (polyacrylic acid
ester-based) 0.3 parts by wt. Solid content 40% by wt. ** Solid
content
TABLE-US-00005 TABLE 5 Formulation 5 NR latex 100 parts by wt. **
10% KOH 1.0 parts by wt. ** Colloidal sulfur 1.0 parts by wt. Zinc
oxide 0.75 parts by wt. Vulcanization accelerator (diethyldithio
carbamic 0.2 parts by wt. acid zinc salt) Antioxidant
(2,2'-methylenebis (4-ethyl 6-tert- 1.0 parts by wt. butylphenol))
Thickener *6 (polyacrylic acid ester-based) 0.3 parts by wt. Solid
content 53% by wt. ** Solid content *1 to *6 in Tables 1 to 5 are
as follows, respectively. *1: LA-TZ produced by SUNWISE, *2: ZEST
P21 produced by Shin Dai-Ichi Vinyl Corporation, *3: diisononyl
phthalate (DINP), *4: Reolosil QS102 produced by Tokuyama
Corporation, *5: SC72 produced by Adeka Corporation, *6: Aron
A-7075 produced by Toagosei Co., Ltd.
(2) Methods of Forming Coating Layer
TABLE-US-00006 [0065] TABLE 6 Formation methods Formation
conditions i NR heat A fibrous glove was put on a hand-shaped mold
A sensitive and heated so that the mold temperature would method
become 80.degree. C., then only the palm was dipped in a natural
rubber compound of formulation 1, followed by drying at 75.degree.
C. for 10 minutes. Then, the fibrous glove was removed from the
mold, leached at 30.degree. C. for 60 minutes, put on a hand-shaped
mold B, then heat treated at 120.degree. C. for 20 minutes to give
a glove. ii NR A fibrous glove was put on a hand-shaped mold A
coagulation and heated so that the mold temperature would method
become 60.degree. C. Then, it was dipped in a 3 wt % calcium
nitrate solution in methanol and further dipped in NR compound of
formulation 5, followed by drying at 120.degree. C. for 10 minutes.
Then, the fibrous glove was removed from the mold, water-leached at
30.degree. C. for 60 minutes, put on a hand-shaped mold B, then
heat treated at 120.degree. C. for 20 minutes to give a glove. iii
NBR A fibrous glove was put on a hand-shaped mold A coagulation and
heated so that the mold temperature would method become 60.degree.
C. Then, it was dipped in a 3 wt % calcium nitrate solution in
methanol and further dipped in NBR compound prepared by foaming
formulation 3 to a volume ratio of 1.5 by using a hand mixer,
followed by drying at 120.degree. C. for 10 minutes. Then, the
fibrous glove was removed from the mold, water-leached at
30.degree. C. for 60 minutes, put on a hand-shaped mold B, and then
cured at 130.degree. C. for 40 minutes to give a glove. iv NBR A
fibrous glove was put on a hand-shaped mold A coagulation and
heated so that the mold temperature would method-2 become
60.degree. C. Then, it was dipped in a 3 wt % calcium nitrate
solution in methanol and further dipped in non-foamable formulation
4, followed by drying at 120.degree. C. for 10 minutes. Then, the
fibrous glove was removed from the mold, water-leached at
30.degree. C. for 60 minutes, put on a hand-shaped mold B, then
heat treated at 130.degree. C. for 40 minutes to give a glove. v
PVC A fibrous glove base was caused to fully adsorb 1 application
wt % aqueous solution of Asahi Guard AG7105 method produced by
Meisei Chemical Works, Ltd. at 25.degree. C. for 10 minutes, then
wrung to a water content of 30% by weight, followed by drying at
130.degree. C. for 10 minutes. This glove was put on a hand-shaped
mold A and the resin compound of formulation 2 was applied only to
the palm of a glove. Then, heat treatment was performed at
190.degree. C. for 10 minutes to give a glove.
Hand-Shaped Mold A:
[0066] Since rubber or resin is applied only to the palm of a
glove, a hand-shaped mold in which the thumb, the remaining four
fingers, and the palm are positioned substantially coplanarly is
used as a hand-shaped mold to be used in coating.
Hand-Shaped Mold B:
[0067] In the case of undergoing a step of removing a glove from a
hand-shaped mold and leaching it, the mold to be used for the
subsequent heat treatment is a mold in a shape that the thumb, the
remaining four fingers and the palm are curved inward so that the
center of the palm will become concave (curve approximately in the
shape formed when a person has relaxed hand force).
(3) Methods of Measurement and Evaluation of Physical
Properties
[0068] The measurement and evaluation of the physical properties of
the gloves obtained in the example and the comparative example were
performed by the following methods:
Diameter of Fiber:
[0069] From the monofilaments of microfibers contained in a unit
area (50.times.50 .mu.m) on a screen taken by using an optical
microscope (VHX-900) manufactured by Keyence Co., five fibers in
increasing order of area and other five fibers in decreasing order
of area were chosen respectively, and the average of them was
calculated, so that a diameter in the case of considering as being
a perfect circle was calculated.
Measurement of Coefficient of Dynamic Friction:
[0070] A test piece (63.5 mm.times.63.5 mm) was cut from the palm
surface of a glove, and the coefficient of dynamic friction (.mu.K)
thereof was measured. This method is based on ASTM D1894. The test
piece is attached to a movable weight (200 g, friction surface:
63.5 mm.times.63.5 mm) of a measuring device of coefficient of
friction, then the movable weight is caused to run just a travel
distance of 130 mm at 150 mm/min on a stainless steel plate, then
the frictional force in this operation is measured, and a running
resistance (coefficient of dynamic friction) produced by the
friction between the test piece and the stainless steel plate is
calculated according to the following formula. Measurement under
WET conditions is performed with the friction surface of the test
piece being wetted with 1 g of water uniformly. The higher the
value of the coefficient of dynamic friction, the higher the
slip-resistant performance is evaluated.
.mu.K(coefficient of dynamic friction)=C/D
[0071] C is an average frictional force after becoming regular
running, and D is the normal reaction of the movable weight.
Slip Resistance of the Inner Surface Side of a Glove:
[0072] Twenty subjects were designated, and when a carton box of 3
kg in weight was held on both sides (side faces) between hands with
gloves, the slip resisting effect of the inner surface sides of the
gloves was evaluated on five scales using the following
criteria:
[0073] A: Do not slide at all, B: Do not slide, C: Neutral, D:
Slide slightly, E: Slide.
Adhesion Strength:
[0074] A test piece (25 mm in width, 120 mm in length) extending
along the longitudinal direction of fingers was cut out from the
palm of a glove and the coating layer and the fibrous glove were
peeled from each other over about 20 mm from the finger side of the
test piece. The ends of both the parts were clamped by a tensile
testing machine so as to form an angle of 180 degrees, and the
force applied in peeling is measured. When a chuck was moved over
150 mm at a moving rate of 50 mm/min, the force applied during
running from 30 mm to 130 mm was averaged and the average was taken
as peel force.
[0075] Peel strength is calculated using the following formula.
[0076] In the present invention, the higher the value, the larger
the adhesion strength is evaluated.
T.sub.F=F.sub.F/b
[0077] T.sub.F is peel strength (N/mm), F.sub.F is peel force (N),
and b is the width of a test piece (mm).
[0078] In the case of the preparation by formation method (iii)
shown in Table 6, the coating layer is spongelike and does not have
strength enough for withstanding a peeling test. Then, only in a
peeling test, non-foamed NBR was applied onto a coating layer of
(iii), thereby reinforcing the coating, and then measurement was
carried out. The adhesion strength is preferably 0.32 N/mm or more,
more preferably, 0.4 N/mm or more.
[0079] A glove has too much enough practical utility when it has
adhesion strength of 0.8 N/mm or more. Accordingly, when being 0.8
N/mm or more, the adhesion strength was described as 0.8 N/mm and
no further measurement was carried out.
Degree of Permeation of Coating:
[0080] The degree of permeation of a coating (coating layer) was
evaluated visually using the following criteria:
[0081] Not permeated: The coating has not permeated to the inner
surface side of the glove.
[0082] Permeated: The coating has permeated to the inner surface
side of the glove.
Cut-Resistant Property:
[0083] The cut-resistant property was observed by a level divided
in accordance with EN 388.
Warmth:
[0084] Twenty subjects were designated, and a working was done with
gloves on under a low temperature (8.degree. C.), the warmth felt
at that time was evaluated on three scales; Good, Average, and
Poor.
Example 1
Preparation of Fibrous Glove (A)
[0085] A fibrous glove knitted by the 18G knitting machine was
prepared using three ply yarns of Teijin Nanofiber (NANOFRONT
56dT(dtex)-10F (the number of filaments)). Subsequently, fibers
were split under stirring in a 2% aqueous sodium hydroxide solution
of a weight 20 times the weight of the glove at 95.degree. C. for
10 minutes. Then, the glove was water-leached (twice in a 20-fold
water bath at 90.degree. C. for 10 minutes) and dried at 60.degree.
C. for 30 minutes. The diameter of the monofilament of NANOFRONT
after splitting was 0.7 .mu.m.
Preparation of Fibrous Glove Base (B)
[0086] A fibrous glove knitted by the 13G knitting machine was
prepared using four single yarns of microfiber (COSMOALPHA
84dT-25F) of KB SEIREN Co., Ltd.
[0087] Subsequently, splitting, leaching, and drying were carried
out by the same methods as described above. The diameter of the
monofilament of microfiber after splitting was 3 .mu.m.
(Preparation of fibrous gloves (C) and (D))
[0088] Fibrous gloves were prepared which had been knitted using
yarns covered at 300 T/M or 600 T/M (hereinafter described as
composite yarn (I) of 300 T/M or composite yarn (II) of 600 T/M)
using two single yarns of microfiber (COSMOALPHA 84dT-25F) of KB
SEIREN Co., Ltd. as sheath yarn and a composite yarn (an elastic
yarn (22dT) of polyurethane covered with woolly nylon (78dT-24F))
as core yarn. Subsequently, splitting, leaching, and drying were
carried out by the same methods as described above to give a
fibrous glove (C) having a diameter of the monofilament of
microfiber after splitting of 3 .mu.m (using composite yarn (I) of
300 T/M) and a fibrous glove (D) having a diameter of the
monofilament of microfiber after splitting of 3 .mu.m (using
composite yarn (II) of 600 T/M).
(Formation of Coating Layer)
[0089] Coating layers of a rubber or a vinyl chloride-based resin
was formed on the palms of the above-described fibrous gloves (A)
to (D) by the method (i) of forming a coating layer described in
Table 6. The results of the measurement and evaluation of the
physical properties of the gloves obtained are given in Table
7.
Example 2
[0090] Using fibrous gloves (A) to (D) having a diameter of the
monofilament of microfiber after splitting of 0.7 .mu.m or 3 .mu.m,
coating layers were formed by the method (v) of forming a coating
layer described in Table 6. The results of the measurement and
evaluation of the physical properties of the gloves obtained are
given in Table 7.
Example 3
Preparation of Fibrous Glove (E)
[0091] Using the 13G knitting machine, a fibrous glove, the inner
surface side of which was made of microfibers was prepared by
plating two single yarns of microfiber (COSMOALPHA 84dT-25F) of KB
SEIREN Co., Ltd. and two ply yarns of woolly nylon (WN)(78dT-24F).
Subsequently, splitting, leaching, and drying were carried out by
the same methods as those used in Example 1 to give a fibrous glove
(E) having a diameter of the monofilament of microfiber after
splitting of 3 .mu.m.
(Formation of Coating Layer)
[0092] Using the fibrous glove (E) described above, a coating layer
was formed by the methods (i) to (v) of forming a coating layer
described in Table 6. The results of the measurement and evaluation
of the physical properties of the gloves obtained are given in
Table 7.
Example 4
Preparation of Fibrous Glove (F1)
[0093] Using the 13G knitting machine, a fibrous glove, the inner
surface side of which was made of microfibers was prepared by
plating-knitting two single yarns of microfiber (COSMOALPHA
84dT-25F) of KB SEIREN Co., Ltd. and one composite yarn composed of
an elastic fiber 22dT of polyurethane (PU) covered with woolly
nylon (WN)(78dT-24F) at 300T/M. Subsequently, splitting, leaching,
and drying were carried out by the same methods as those used in
Example 1 to give a fibrous glove (F1) having a diameter of the
monofilament of microfiber after splitting of 3
(Formation of Coating Layer)
[0094] Using the fibrous glove (F1) described above, coating layers
were formed by the methods (i) to (v) of forming a coating layer
described in Table 6. The results of the measurement and evaluation
of the physical properties of the gloves obtained are given in
Table 7.
Preparation of Fibrous Glove (F2)
[0095] Using the 13G knitting machine, a fibrous glove, the inner
surface side of which was made of microfibers was prepared by
plating-knitting two single yarns of microfiber (COSMOALPHA
84dT-25F) of KB SEIREN Co., Ltd. and one composite yarn composed of
one elastic fiber 22dT of polyurethane (PU) covered with one woolly
polyester (PE) 84dT-36F at 300T/M. Subsequently, splitting,
leaching, and drying were carried out by the same methods as those
used in Example 1 to give a fibrous glove (F2) having a diameter of
the monofilament of microfiber after splitting of 3 .mu.m.
(Formation of Coating Layer)
[0096] Using the fibrous glove (F2) described above, a coating
layer was formed by method (iv) of forming a coating layer
described in Table 6. The results of the measurement and evaluation
of the glove obtained are given in Table 7.
(Preparation of Fibrous Glove (F3))
[0097] Using the 13G knitting machine, a fibrous glove, the inner
surface side of which was made of microfibers was prepared by
plating-knitting two single yarns of microfiber (COSMOALPHA
84dT-25F) of KB SEIREN Co., Ltd. and one composite yarn composed of
one elastic fiber 22dT of polyurethane (PU) covered with one
30-count cotton (CO) at 300T/M. Subsequently, splitting, leaching,
and drying were carried out by the same methods as those used in
Example 1 to give a fibrous glove (F3) having a diameter of the
monofilament of microfiber after splitting of 3 .mu.m.
(Formation of Coating Layer)
[0098] Using the fibrous glove (F3) described above, a coating
layer was formed by the method (iv) of forming a coating layer
described in Table 6. The results of the measurement and evaluation
of the gloves obtained are given in Table 7.
Example 5
Preparation of Fibrous Gloves (G) and (H)
[0099] Using the 13G knitting machine, a fibrous glove, the inner
surface side of which was made of microfibers was prepared by
plating composite fiber (I) of 300 T/M or composite fiber (II) of
600 T/M of Example 1 and two ply yarns of woolly nylon (78dT-24F).
Subsequently, splitting, leaching, and drying were carried out by
the same methods as those used in Example 1 to give a fibrous glove
(G) (using composite yarn (I) of 300 T/M) and a fibrous glove
(Musing composite yarn (II) of 600 T/M), having a diameter of the
monofilament of microfiber after splitting of 3 .mu.m.
(Formation of Coating Layer)
[0100] Subsequently, using the fibrous gloves (G) and (H), coating
layers were formed by the methods (i) to (v) of forming a coating
layer described in Table 6. The results of the measurement and
evaluation of the physical properties of the gloves obtained are
given in Table 7.
TABLE-US-00007 TABLE 7 Coefficient Coefficient of dynamic of
dynamic friction friction Organoleptic of inner of inner evaluation
surface side surface side of slip Formation of glove of glove
resistance method of in dry in wet of inner Adhesion Degree of
Fibrous glove coating condition condition surface side strength
permeation (diameter) layer (.mu.K) (.mu.K) of glove (N/mm) of
coating Ex. 1 Microfibers of (A) (i) 1.95 0.7 B 0.8 or more Not
permeated (0.7 .mu.m) Microfibers of (B) (i) 0.7 0.65 B 0.8 or more
Not permeated (3 .mu.m) Microfibers of (C) (i) 0.51 0.41 C 0.8 or
more Not permeated (3 .mu.m) Microfibers of (D) (i) 0.53 0.43 C 0.8
or more Not permeated (3 .mu.m) Ex. 2 Microfibers of (A) (v) 1.92
0.71 B 0.8 or more Not permeated (0.7 .mu.m) Microfibers of (B) (v)
0.7 0.55 B 0.8 or more Not permeated (3 .mu.m) Microfibers of (C)
(v) 0.51 0.42 C 0.8 or more Not permeated (3 .mu.m) Microfibers of
(D) (v) 0.55 0.42 C 0.8 or more Not permeated (3 .mu.m) Ex. 3
Microfibers of (E) (i) 0.66 0.66 B 0.8 or more Not permeated (3
.mu.m) (ii) 0.68 0.63 B 0.52 Not permeated (Plating with WN) (iii)
0.67 0.68 B 0.54 Not permeated (iv) 0.65 0.65 B 0.52 Not permeated
(v) 0.68 0.7 B 0.8 or more Not permeated Ex. 4 Microfibers of (F1)
(i) 0.67 0.64 A 0.8 or more Not permeated (3 .mu.m) (ii) 0.66 0.68
A 0.48 Not permeated (Plating with composite (iii) 0.67 0.69 A 0.52
Not permeated fiber WN/PU) (iv) 0.68 0.66 A 0.52 Not permeated (v)
0.68 0.67 A 0.8 or more Not permeated Microfibers of (F2) (iv) 0.65
0.65 A 0.42 Not permeated (Plating with composite fiber PE/PU)
Microfibers of (F3) (iv) 0.67 0.68 A 0.42 Not permeated (Plating
with composite fiber CO/PU) Ex. 5 Microfibers of (G) (i) 0.67 0.61
C 0.8 or more Not permeated (3 .mu.m) (ii) 0.59 0.6 C 0.51 Not
permeated (Plating with (iii) 0.62 0.6 C 0.54 Not permeated
composite fiber I) (iv) 0.63 0.63 C 0.52 Not permeated (v) 0.62
0.64 C 0.8 or more Not permeated Microfibers of (H) (i) 0.62 0.68 C
0.8 or more Not permeated (3 .mu.m) (ii) 0.68 0.64 C 0.51 Not
permeated (Plating with (iii) 0.65 0.62 C 0.54 Not permeated
composite fiber II) (iv) 0.66 0.6 C 0.53 Not permeated (v) 0.63
0.61 C 0.8 or more Not permeated
Comparative Example 1
[0101] Using fibrous gloves (B) to (D), having a diameter of the
monofilament of microfiber after splitting of 3 .mu.m, coating
layers were formed by the method (ii) of forming a coating layer
described in Table 6. The results of the measurement and evaluation
of the physical properties of the gloves obtained are given in
Table 8.
Comparative Example 2
[0102] Using the 13G knitting machine, a fibrous glove was prepared
by knitting using two high multifilaments (Polyester 176dT-288F, 7
.mu.m in diameter) of Senshin (Taiwan). Subsequently, leaching and
drying were carried out by the same methods as those used in
Example 1 to give a fibrous glove (I) having a diameter of 7
.mu.m.
[0103] Then, using the fibrous glove (I), coating layers were
formed by the methods (i) to (v) of forming a coating layer
described in Table 6. The results of the measurement and evaluation
of the physical properties of the glove obtained are given in Table
8.
Comparative Example 3
[0104] Using the 13G knitting machine, there was prepared a fibrous
glove knitted by aligning two single yarns of microfiber
(COSMOALPHA 84dT-25F) of KB SEIREN Co., Ltd. and two ply yarns of
woolly nylon (78dT). Subsequently, splitting, leaching, and drying
were carried out by the same methods as those used in Example 1 to
give a fibrous glove base (J) having a diameter of the monofilament
of microfiber after splitting of 3 .mu.m.
[0105] Then, using the fibrous glove (J) described above, coating
layers were formed by the methods (ii) to (iii) of forming a
coating layer described in Table 6. The results of the measurement
and evaluation of the physical properties of the gloves obtained
are given in Table 8.
Comparative Example 4
[0106] Using the 13G knitting machine, there was prepared a fibrous
glove knitted by aligning two single yarns of microfiber
(COSMOALPHA 84dT-25F) of KB SEIREN Co., Ltd. and one composite yarn
composed of an elastic fiber 22dT of polyurethane covered with
woolly nylon (78dT-24F) at 300T/M. Subsequently, splitting,
leaching, and drying were carried out by the same methods as those
used in Example 1 to give a the fibrous glove (K) having a diameter
of the monofilament of microfiber after splitting of 3 .mu.m.
[0107] Then, using the fibrous glove (K), coating layers were
formed by the methods (ii) and (iii) of forming a coating layer
described in Table 6. The results of the measurement and evaluation
of the physical properties of the gloves obtained are given in
Table 8.
TABLE-US-00008 TABLE 8 Coefficient Coefficient of dynamic of
dynamic friction friction Organoleptic of inner of inner evaluation
surface side surface side of slip Formation of glove of glove
resistance method of in dry in wet of inner Adhesion Degree of
coating condition condition surface side strength permeation
Fibrous glove (diameter) layer (.mu.K) (.mu.K) of glove (N/mm) of
coating Comp. Ex. 1 Microfibers of (B) (3 .mu.m) (ii) 0.69 0.67 B
0.2 Not permeated Microfibers of (C) (3 .mu.m) (ii) 0.5 0.48 C 0.22
Not permeated Microfibers of (D) (3 .mu.m) (ii) 0.52 0.49 C 0.21
Not permeated Comp. Ex. 2 Microfibers of (I) (7 .mu.m) (i) 0.30
0.29 E 0.8 or more Not permeated (ii) 0.32 0.29 E 0.62 Not
permeated (iii) 0.30 0.30 E 0.31 Not permeated (iv) 0.32 0.32 E
0.30 Not permeated (v) 0.33 0.31 E 0.8 or more Not permeated Comp.
Ex. 3 Microfibers of (J) (3 .mu.m) (ii) 0.38 0.34 E 0.38 Not
permeated (Aligned with WN) (iii) 0.35 0.33 E 0.42 Not permeated
Comp. Ex. 4 Microfibers of (K) (3 .mu.m) (ii) 0.35 0.36 D 0.34 Not
permeated (Aligned with composite yarn) (iii) 0.33 0.32 D 0.38 Not
permeated
Comparative Examples 5 to 8
[0108] Using a fibrous glove (woolly nylon) (L) knitted by the 13G
knitting machine using two ply yarns of woolly nylon 78dT, a
fibrous glove (wooly polyester) (M) knitted using two ply yarns of
woolly polyester 84dT, a fibrous glove (cotton) (N) knitted using
two 30-count cottons, and a fibrous glove (SCY) (O) knitted using
three composite yarns composed of an elastic fiber 22dT of
polyurethane covered with woolly nylon 78dt-24F at 300T/M, coating
layers were formed by the methods (i) to (v) of forming a coating
layer described in Table 6. The leaching and drying of the fibrous
glove are the same as those of Example 1. The results of the
measurement and evaluation of the physical properties of the gloves
obtained are given in Table 9.
TABLE-US-00009 TABLE 9 Coefficient of Coefficient dynamic friction
of Organoleptic Formation of dynamic friction inner surface side
evaluation of slip method of of inner surface side of glove in wet
resistance of inner Degree of Fibrous glove coating of glove in dry
condition condition surface side of Adhesion strength permeation of
(diameter) layer (.mu.K) (.mu.K) glove (N/mm) coating Comp. Ex. 5
Woolly nylon of (L) (i) 0.27 0.25 E 0.8 or more Not permeated (ii)
0.27 0.20 E 0.71 Not permeated (iii) 0.29 0.28 E 0.67 Not permeated
(iv) 0.30 0.29 E 0.67 Not permeated (v) 0.28 0.28 E 0.8 or more Not
permeated Comp. Ex. 6 Woolly polyester (i) 0.24 0.22 E 0.51 Not
permeated of (M) (ii) 0.22 0.24 E 0.48 Not permeated (iii) 0.23
0.22 E 0.74 Not permeated (iv) 0.24 0.19 E 0.72 Not permeated (v)
0.24 0.21 E 0.8 or more Not permeated Comp. Ex. 7 Cotton of (N) (i)
0.27 0.39 D 0.8 Not permeated (ii) 0.27 0.30 D 0.74 Not permeated
(iii) 0.29 0.37 D 0.79 Not permeated (iv) 0.27 0.34 D 0.80 Not
permeated (v) 0.28 0.37 D 0.8 or more Not permeated Comp. Ex. 8 SCY
of (O) (i) 0.29 0.24 D 0.8 Not permeated (ii) 0.25 0.27 D 0.68 Not
permeated (iii) 0.28 0.25 D 0.71 Not permeated (iv) 0.27 0.25 D
0.68 Not permeated (v) 0.30 0.26 D 0.8 or more Not permeated
Examples 6 and 7
[0109] Using the 13G knitting machine, a fibrous glove, the inner
surface side of which was made of microfiber and woolly nylon and
the outer surface side of which was made of woolly nylon was
prepared by plating-knitting a yarn of microfibers (COSMOALPHA
84dT-25F) of KB SEIREN of the number given in Table 10 and woolly
nylon 78dT aligned together and woolly nylon. Subsequently,
splitting, leaching, and drying were carried out by the same
methods as those used in Example 1 to give a fibrous gloves (P)
having a diameter of the monofilament of microfiber after splitting
of 3 .mu.m.
(Formation of Coating Layer)
[0110] Using the fibrous gloves (P) described above, coating layers
were formed by the method (iv) of forming a coating layer described
in Table 6. The results of the measurement and evaluation of the
physical properties of the gloves obtained are given in Table
10.
TABLE-US-00010 TABLE 10 Inner surface side Organoleptic Microfibers
to evaluation of Coefficient of dynamic COSMOALPHA whole fibers on
Outer surface side Adhesion slip resistance friction of inner
Before splitting After splitting WN inner surface side WN strength
of inner surface surface side of glove (dT * Number) (dT) (dT *
Number) (Wt. %) (dT * Number) (N/mm) side of glove in dry condition
(.mu.K) Ex. 6 84 * 5 310 78 * 1 80 78 * 2 0.49 B 0.65 84 * 4 250 78
* 1 75 78 * 2 0.52 C 0.59 84 * 3 208 78 * 1 73 78 * 2 0.50 C 0.58
84 * 2 130 78 * 1 62 78 * 2 0.51 C 0.52 Ex. 7 84 * 2 130 78 * 2 45
78 * 2 0.51 E 0.34
Example 8
Preparation of Fibrous Glove (Q)
[0111] Using the 13G knitting machine, a fibrous glove, the inner
surface side of which was made of microfibers was prepared by
plating-knitting two single yarns of microfiber (COSMOALPHA
84dT-25F) of KB SEIREN Co., Ltd. and one composite yarn composed of
one elastic fiber 22dT of polyurethane (PU) covered with one
Dyneema (Registered trademark of Toyobo Co., Ltd. 22dT-192F) at
200T/M. Subsequently, splitting, leaching, and drying were carried
out by the same methods as those used in Example 1 to give a
fibrous glove (Q) having a diameter of the monofilament of
microfiber after splitting of 3 .mu.m.
(Formation of Coating Layer)
[0112] Using the fibrous glove (Q) described above, a coating layer
was formed by the methods (i) to (iv) of forming a coating layer
described in Table 6. The results of the measurement and evaluation
of the glove obtained are given in Table 11.
Example 9
Preparation of Fibrous Glove (R)
[0113] Using the 10G knitting machine, a fibrous glove, the inner
surface side of which was made of microfibers was prepared by
plating-knitting two single yarns of microfiber (COSMOALPHA
84dT-25F) of KB SEIREN Co., Ltd. and one Kevlar (Registered
trademark of Toray-DuPont, 20-count). Subsequently, splitting,
leaching, and drying were carried out by the same methods as those
used in Example 1 to give a fibrous glove (R) having a diameter of
the monofilament of microfiber after splitting of 3 .mu.m.
(Formation of Coating Layer)
[0114] Using the fibrous glove (R) described above, a coating layer
was formed by the methods (i) to (v) of forming a coating layer
described in Table 6. The results of the measurement and evaluation
of the glove obtained are given in Table 11.
Example 10
[0115] In Example 4, with respect to the gloves obtained by using a
fibrous glove (F1) and forming a coating layer by the methods (i)
to (v), the cut-resistant property was evaluated.
[0116] The results of the evaluation are given in Table 11.
TABLE-US-00011 TABLE 11 Coefficient of Coefficient of dynamic
Formation dynamic friction of friction of inner surface
Organoleptic Cut-resistant method of inner surface side of side of
glove in wet evaluation of slip Adhesion Degree of property Fibrous
glove coating glove in dry condition condition resistance of inner
strength permeation of EN388 (diameter) layer (.mu.K) (.mu.K)
surface side of glove (N/mm) coating (Level) Ex. 8 Microfibers (i)
0.67 0.63 A 0.54 Not permeated 2 of (Q) (ii) 0.65 0.65 A 0.53 Not
permeated 2 (3 .mu.m) (iii) 0.66 0.66 A 0.43 Not permeated 2 (iv)
0.66 0.65 A 0.41 Not permeated 2 Ex. 9 Microfibers (i) 0.6 0.6 B
0.56 Not permeated 2 of (R) (ii) 0.63 0.61 B 0.53 Not permeated 2
(3 .mu.m) (iii) 0.61 0.62 B 0.42 Not permeated 2 (iv) 0.6 0.61 B
0.4 Not permeated 2 (v) 0.62 0.6 B 0.65 Not permeated 2 Ex. 10
Microfibers (i) 0.67 0.64 A 0.8 Not permeated 1 of (F1) or more (3
.mu.m) (ii) 0.66 0.68 A 0.48 Not permeated 1 (Plating with (iii)
0.67 0.69 A 0.52 Not permeated 1 composite fiber (iv) 0.68 0.66 A
0.52 Not permeated 1 WN/PU) (v) 0.68 0.67 A 0.8 Not permeated 1 or
more
Example 11
Preparation of Fibrous Glove (S)
[0117] Using the 13G knitting machine, a fibrous glove, the inner
surface side of which was made of microfibers was prepared by
plating-knitting two single yarns of microfiber (COSMOALPHA
84dT-25F) of KB SEIREN Co., Ltd. and one acryl (Toray Industries,
Inc., 40-count). Subsequently, splitting, leaching, and drying were
carried out by the same methods as those used in Example 1 to give
a fibrous glove (S) having a diameter of the monofilament of
microfiber after splitting of 3 .mu.m.
(Formation of Coating Layer)
[0118] Using the fibrous glove (S) described above, a coating layer
was formed by the methods (i) to (v) of forming a coating layer
described in Table 6. The results of the measurement and evaluation
of the glove obtained are given in Table 12.
Example 12
[0119] In Example 4, with respect to the gloves obtained by using a
fibrous glove (F1) and forming a coating layer by the methods (i)
to (v), the warmth was evaluated.
[0120] The results of the evaluation are given in Table 12.
TABLE-US-00012 TABLE 12 Coefficient Coefficient of dynamic of
dynamic friction friction Organoleptic of inner of inner evaluation
surface side surface side of slip Formation of glove of glove
resistance method of in dry in wet of inner Adhesion Degree of
Organoleptic Fibrous glove coating condition condition surface side
strength permeation evaluation (diameter) layer (.mu.K) (.mu.K) of
glove (N/mm) of coating of warmth Ex. 11 Microfibers of (S) (i)
0.65 0.68 B 0.8 or more Not permeated Good (3 .mu.m) (ii) 0.66 0.69
B 0.8 or more Not permeated Good (iii) 0.65 0.65 B 0.52 Not
permeated Good (iv) 0.65 0.66 B 0.8 or more Not permeated Good (v)
0.68 0.67 B 0.8 or more Not permeated Good Ex. 12 Microfibers of
(F1) (i) 0.67 0.64 A 0.8 or more Not permeated Poor (3 .mu.m) (ii)
0.66 0.68 A 0.48 Not permeated Poor (Plating with (iii) 0.67 0.69 A
0.52 Not permeated Poor composite fiber (iv) 0.68 0.66 A 0.52 Not
permeated Poor WN/PU) (v) 0.68 0.67 A 0.8 or more Not permeated
Poor
[0121] As is clearly shown by Examples 1 and 2 in Table 7, a glove
superior in the slip resistance of the inner surface side of the
glove and also superior in adhesion strength (0.32 N/mm or more,
preferably 0.4 N/mm or more) can be obtained by using a fibrous
glove made of microfibers for both the inner surface side and the
outer surface side, and forming a coating layer by a heat sensitive
method (i) in the case of forming a coating layer of rubber on the
outer surface side (Example 1) or by forming a coating layer by
method (v) including applying oil-repellent treatment to the
fibrous glove in advance in the case of forming a coating layer of
vinyl chloride-based resin (Example 2).
[0122] Especially, in the case of the microfibers (C) and (D) in
Examples 1 and 2, the coefficient of dynamic friction of the inner
surface side covered with microfibers is somewhat low, but
compressive force and fitting force have been enhanced by
polyurethane elastic fibers and accordingly the slip resistance of
the inner surface side of the glove is good.
[0123] In the case of the microfibers of (E) in Example 3, the slip
resistance of the inner surface side of the glove is good because
of the execution of plating with woolly nylon (WN).
[0124] In Example 4, which are embodiments where elastic fibers
have been added to the fibrous glove base of Example 3, compressive
force and fitting force to a hand have been enhanced and the slip
resistance of the inner surface side of the glove has been
increased more in comparison with the glove of Example 3.
[0125] As is clear from Examples 4 and 5, by including
non-microfibers in the outer surface side, there can be obtained a
glove superior in the adhesion strength of a coating layer of
rubber or vinyl chloride-based resin by any of methods (i) to (v)
of forming a coating layer.
[0126] As is clearly shown by Comparative Example 1 in Table 8, in
the case where a coating layer of rubber is formed on the outer
surface side of a fibrous glove, both the inner surface side and
the outer surface side of which are made of microfibers, a glove
superior in adhesion strength cannot be obtained by a coagulation
method (ii).
[0127] As is clear from Comparative Example 2, when the diameter of
the monofilament of microfiber is larger than 6 .mu.m, the slip
resistance of the inner surface side of a glove tends to lower,
whereas in the case of fibers having a diameter of 7 .mu.m, the
adhesion strength of a coating layer of rubber or vinyl
chloride-based resin also tends to lower.
[0128] Moreover, as is shown by Comparative Examples 3 and 4, in
the case of merely aligning microfibers and non-microfibers
together, sufficient slip resistance on the inner surface side of a
glove cannot be obtained because both types of fibers are mixed
randomly and accordingly the proportion of the microfibers in the
inner surface side which comes into contact with hand, skin becomes
smaller.
[0129] Moreover, as is clear from Comparative Examples 5 to 8 in
Table 9, the slip resistance of the inner surface side of a glove
has been lowered in the case where the inner surface side of the
glove is made of not microfibers but non-microfibers of the general
purpose grade (the diameter of monofilament is 15 to 30 .mu.m).
[0130] Moreover, Examples 6 and 7 in Table 10 show that even if
microfibers and non-microfibers have been aligned together, the
slip resistance of the inner surface side of a glove is improved
when the proportion of microfibers to the whole fibers in the
inside of the glove is greater than 50% by weight.
[0131] Furthermore, as is clear from the comparison of Examples 8,
9 and Example 10 in Table 11, the gloves of Examples 8, 9 in which
microfibers were provided to the inner surface side of a fibrous
glove including cut-resistant fibers as the non-microfibers, slip
resistance as well as cut-resistant property is imparted to both
the outer surface side and the inner surface side of a glove, and
therefore, a glove excellent in workability can be provided, as
compared with the gloves of Example 10 not containing the
cut-resistant fibers.
[0132] Furthermore, as is clear from the comparison of Example 11
and Example 12 in Table 12, the gloves of Example 11 in which
acrylic fibers were provided to the outer surface side are
excellent in warmth, and thus a glove excellent in protection
against the cold can be provided.
[0133] As described above, according to the present invention,
there can be provided a glove having high performance that is
superior in slip resistance on both the outer surface side and the
inner surface side thereof and also superior in adhesion strength
to rubber or resin formed on the outer surface side.
* * * * *