U.S. patent application number 12/824183 was filed with the patent office on 2011-03-31 for novel fabric made of all elastomeric fiber and its applications.
Invention is credited to Jacky CHEUNG.
Application Number | 20110076906 12/824183 |
Document ID | / |
Family ID | 43780892 |
Filed Date | 2011-03-31 |
United States Patent
Application |
20110076906 |
Kind Code |
A1 |
CHEUNG; Jacky |
March 31, 2011 |
Novel Fabric Made of All Elastomeric Fiber and Its Applications
Abstract
The present invention relates to a knitted fabric which adopts a
novel weaving principle of changing knitting material structure to
realize functions and effects which can not be achieved by ordinary
fabric. The knitted fabric comprises the main component of novel
woven 100 percent spandex fabric made of 100 percent spandex
filament. Presently, elastic rubber pieces, rubber bands, etc., are
applied to the underwear at the market for enhancing the elasticity
and supporting effect. The common features is that they all have a
poor elastic resilience, unstable structure, and prone to
distortion and raveling. The present novel knitted fabric changes
the principle of crocheting of the ordinary material of the
traditional knitted fabric, adopting 100 percent spandex filament
as the main material to change the elastic resilience, force, and
structure stability of the traditional knitted fabric. The mutual
double pulling effect of the knitted fabric in the spandex filament
after crocheting is to remedy the defaults of the fabric of which
the structure is deformed and the elastic resilience and the force
are weakened after the fabric is elongated. Compared with the
original fabric, the elastic recovery and the elastic force of the
fabric are greatly increased and improved. The weaving process and
the features of the novel 100 percent spandex fabric are as
follows: (1) Warp yarn and weft yarn which are made of 100% spandex
filament material are mutually crocheted. (2) The back weft of the
spandex filament is required to pass through a filament packaging
frame and a weft yarn accelerating conveyer device is provided. (3)
Curling is required to be avoided. The specification of the spandex
filament of which the warp yarn used required to be considered, so
is the specification and constituents of the back weft made of the
spandex filament. The preset novel 100% spandex fabric can
completely replace the elastic woven band and rubber piece in the
prior underwear to play a role of enhancing the elasticity and
strength. It can also completely replace the prior common elastic
woven band and rubber piece, providing good hand feel, flatness,
smoothness, close fit, sound elastic resilience, comfort wear, etc.
It can be widely applied to garment industry, particularly to the
underwear, such as brassiere, swimwear, briefs, etc. A strap having
a memory function, comprising yarns of substantially 100% spandex.
The rubber band and ordinary strap applicable in the present market
provide a poor elastic resilience, which would easily deform. The
said strap having a memory function weaved with warp yarn made of
100% spandex and weft yarn made of 100% spandex, whose structure
could be not only plain weave, but also twill or tracery. The
fabric has the "memory" function by which it returns to
substantially its original shape after being stretched many times
it original size. It can provide excellent hand feel, good
flatness, smoothness, close fit, sound elasticity, and comfortable
wear when used to replace the existing ordinary elastic rubber
bands. It can be widely applied in the garment industry, especially
in the field of underwear such as brassiere, swimwear, briefs,
lingerie, etc. The present patent for utility model discloses a
laminable elastic fabric whose main components are 100% spandex
elastic woven band and warp knitted shell fabric or weft knitted
cloth, and the elastic fabric is formed through laminating
processing. The laminated fabric currently used on the market does
not have good elastic resilience and is thus easily deformed and is
relatively thick. The new laminated elastic fabric of the present
patent is relatively light and thin, and the elastic woven band is
formed by interweaving 100% spandex warp threads and 100% spandex
weft threads, and the elastic fabric is formed by laminating it to
the inner side of the shell fabric. The fabric has a recovery of
nearly 100% after many times of use. The fabric laminated with said
woven band has the characteristics of excellent hand feel, good
levelness, softness and smoothness, close fit, good elasticity,
comfortable wear, etc. Meanwhile, the processing is simple, and
mechanical automation and mass production can be realized, which
complies with the efficiency of market economy.
Inventors: |
CHEUNG; Jacky; (Machong
Town, CN) |
Family ID: |
43780892 |
Appl. No.: |
12/824183 |
Filed: |
June 27, 2010 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61221018 |
Jun 26, 2009 |
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Current U.S.
Class: |
442/184 |
Current CPC
Class: |
D03D 15/56 20210101;
Y10T 442/3024 20150401; D03D 3/005 20130101 |
Class at
Publication: |
442/184 |
International
Class: |
D03D 15/08 20060101
D03D015/08 |
Claims
1. The present novel 100% spandex fabric changes the weaving
principle of knitting material structure to ensure that the fabric
fulfills the functions and effects which can not be achieved by
ordinary fabric, which is mainly made of the present novel 100%
spandex fabric comprising manly with 100% spandex filament. The
novel fabric material can have one specification or can have two or
more different specifications. The material of back weft can be
various mixed specifications. The recovery rate of the novel 100%
spandex fabric can reach over 95% after repeated stretching test.
The present novel 100% spandex fabric can also quickly return to
its original shape and provide durability, which giving a good
solution to which the prior underwear suffered from a small
recovery rate and insufficient elastic force.
2. The weaving process and the features of the novel 100 percent
spandex fabric are as follows: (1) Warp yarn and weft yarn which
are made of 100% spandex filament material are mutually crocheted.
(2) The back weft of the spandex filament is required to pass
through a filament packaging frame and a weft yarn accelerating
conveyer device is provided. (3) Curling is required to be avoided.
The specification of the spandex filament of which the warp yarn
used required to be considered, so is the specification and
constituents of the back weft made of the spandex filament. The
present novel knitted fabric changes the crocheting principle of
ordinary material of traditional knitted fabric, adopting 100%
spandex filament as the main material to change the elastic
resilience, the force and the structure stability of knitted
fabric. The mutual double pulling effect of the knitted fabric in
the spandex filament after crocheting to remedy the defaults of the
fabric that the structure is deformed and the elastic resilience
and the force are weakened after the fabric is elongated.
Considering that it is difficult for spandex to color and the
material is laminated to the inner layer, which is invisible from
the outer layer, the material can directly enter the next layer,
which is invisible from the outer layer, the material can directly
enter the next laminating process without dyeing. The greige strap
produced is preset at a high temperature. The purpose thereof is to
stabilize the specification of the fabric and avoid deformation and
curling of fabric. Meanwhile, since there is a large amount of
silicone oil on the surface of the spandex, the oil on the fabric
surface can vaporize through presetting at a high temperature. The
presetting temperature must be above 192 degrees Celsius. The
optimal setting effect can be achieved by adjusting parameters such
as temperature and speed according to different thickness. The
preset fabric is placed in a vat for fumigation and phenolic
yellowing processing so as to prevent unfavorable effect due to
yellowing in later storage or use, and is then dried. Since the
specification is predetermined in presetting, only a low
temperature is required for drying. The processed material or cut
piece to be laminated is evenly spread on a cutting table, and glue
is evenly applied thereon, and then the 100% spandex strap is
firmly bonded between the upper and lower layers of other materials
at a high temperature and under a high pressure.
3. The production of said woven band adopts elastic nylon, terylene
and other elastic materials.
4. The production method of the said woven band comprises all
crocheting structure principle in the production of daily life.
5. The said woven band is applied to underwear, briefs swimwear,
etc., after high-temperature laminating.
What is claimed is:
1. A strap having a memory function, comprising yarns of 100%
elastic spandex, Characteristics in that the whole strap is made of
spandex without any other fiber.
2. The strap having a memory function of claim 1, characterized in
that the warp yarn of said strap is made of 100% elastic
spandex.
3. The strap having a memory function of claim 1, characterized in
that the weft yarn of said strap is made of 100% elastic
spandex.
4. The strap having a memory of function of claim 1, characterized
in that the greige strap produced is preset at a high temperature.
The purpose thereof is to stabilize the specification of the fabric
and avoid deformation and curling of fabric. Meanwhile, since there
is a large amount of silicone oil on the surface of the spandex,
the oil on the fabric surface can vaporize through presetting at a
high temperature. The presetting temperature must be above 192
degrees Celsius. The optimal setting effect can be achieved by
adjusting parameters such as temperature and speed according to
different thickness. The said strap is required for fumigation and
phenolic yellowing processing so as to prevent unfavorable effect
due to yellowing in later storage or use. Considering that it is
difficult for spandex to color and the material is laminated to the
inner layer, which is invisible from the outer layer, the material
can directly enter the next layer, which is invisible from the
outer layer, the material can directly enter the next laminating
process without dyeing. That is to say, the processed material or
cut piece to be laminated is evenly spread on a cutting table, and
glue is evenly applied thereon, and then the 100% spandex strap is
firmly bonded between the upper and lower layers of other materials
at a high temperature and under a high pressure.
5. The strap having a memory function of claim 1, characterized in
that said woven band is woven band or knitting band.
6. The strap having a memory function of claim 5, characterized in
that various strap can be woven into different structure with warp
yarn and weft yarn made of 100% elastic spandex.
7. The strap having a memory function of claim 6, characterized in
that said strap is regular or irregular.
8. The strap having a memory function of claim 7, characterized in
that said strap is plane or patterned.
9. The strap having a memory function of claim 1, characterized in
that said strap can be made by spandex yarn of all
specifications.
10. The strap having a memory of function of claim 1, characterized
in that said strap is applicable in the garment, such as underwear,
briefs, swimwear, etc.
What is claimed is:
1. A new laminated elastic fabric, characterized in that the fabric
comprises 100% spandex laminated elastic woven band and elastic
shell fabric.
2. The new laminated fabric according to claim 1, wherein the
laminated elastic woven band is woven using 100% spandex containing
no other fibers.
3. The new laminated fabric according to claim 1, wherein warp
threads and weft threads used to weave the laminated elastic woven
band both adopt 100% spandex yarns.
4. The new laminated fabric according to claim 1, wherein the
laminated elastic woven band may adopt spandex yarns of any
specification.
5. The new laminated fabric according to claim 1, wherein the
greige band produced to make the laminated elastic woven band must
be preset at a high temperature, the purpose of which is to
stabilize the specification of the fabric and avoid deformation and
curling of the fabric; meanwhile, since there is a large amount of
silicone oil on the surface of the spandex, the oil on the fabric
surface can vaporize through presetting at a high temperature; the
presetting temperature must be above 130 degrees Celsius; and the
optimal setting effect can be achieved by adjusting parameters such
as temperature and speed according to the thickness; Said woven
band must go through fumigation and phenolic yellowing processing
so as to prevent unfavorable effect due to yellowing in later
storage or use.
6. The new laminated fabric according to claim 1, wherein since the
laminated elastic woven band is laminated to the inner layer of the
shell fabric and is invisible from the outer layer, it can directly
enter the next laminating process without dyeing; the processing is
that the processed shell fabric or cut piece to be laminated is
evenly spread on a cutting table, and glue is evenly applied
thereon, and then the 100% spandex woven band is firmly bonded
between the upper and lower layers of shell fabric at a high
temperature and under a high pressure.
7. The new laminated fabric according to claim 6, wherein the
laminated elastic woven band is formed by interweaving 100% spandex
warp threads and weft threads according to different
structures.
8. The new laminated fabric according to claim 8, wherein at least
one face of the laminated elastic woven band is planar.
9. The new laminated fabric according to claim 1, wherein the shell
fabric may be elastic or non-elastic.
10. The new laminated fabric according to claim 1, wherein the
shell fabric may be patterned or plain.
11. The new laminated fabric according to claim 1, characterized in
that the fabric is used after high-temperature lamination for
ready-to-wear clothes, including underwear, briefs, swimsuit, etc.
Description
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application claims benefit from U.S. Provisional
Application No. 61/221,018, filed Jun. 26, 2009.
FIELD OF THE INVENTION
[0002] The 100% spandex fabric relates to the field of textile,
specifically to elastic woven band and underwear, particularly to
top-grade elastic fabric, top-grade underwear and other products
made of the fabric.
BACKGROUND OF THE INVENTION
[0003] Presently, it is known that elastic materials are used for
the upper and lower bundles (i.e. flanks) of bras in order to
assist the cups in supporting the breasts and keeping them in
position relative to the chest circumference, which is also used
for the waists of panties to increase elasticity. In the present
market, elastic strap and elastic rubber pieces are mainly used
with two methods. One is to enclose them in cloth through flat
seams. The other is to directly attach them to cloth. However, the
conventional elastic strap have poor elastic resilience and will
easily have elastic creep and lose elasticity after being used
several times. The elastic strap will cause uneven pressure in some
parts regardless whether they are enclosed in or attached to the
shell fabrics. It is difficult for them to meet the main
requirements on flatness, smoothness, close fit, sound elasticity,
etc.
SUMMARY OF THE INVENTION
[0004] 1. The novel 100% spandex fabric has sound elastic
resilience to increase the elasticity and strengthen the support
for underwear, which particularly can be applied in woman's
shoulder strap, meeting the requirements on smoothness, close fit,
sound elasticity, high level of wearing comfort, flatness, solid,
etc.
[0005] 2. At present, in order to increase the elastic recovery
rate and force, most knitted fabric mainly adopts the method of
increasing the force or specifications of the spandex filament, and
in order to obtain better elastic recovery and elastic force,
sometimes double spandex filament or double filament packaging line
is adopted. Although the elastic recovery rate and the force of the
fabric are obtained, the volume, the thickness and the stiffness of
the fabric is increased to a certain extent. The novel 100 percent
spandex filament fulfills the requirements of small volume,
thinness, softness, large elastic recovery rate and force, and can
further replace other elastic fabric and elastic rubber strips for
the underwear.
[0006] 3. The technical scheme of the novel 100% spandex fabric is
as follows: the fabric's main feature is that 100 percent spandex
filament is crocheted to be the main material. As spandex is the
fiber with the best elasticity and elongation property out of all
of the chemical fibers available, the breaking point of stretching
can reach 500 to 800 percent of its original length, the elastic
recovery rate can reach more than 95 percent, and the spandex can
provide good tenacity, small area and good flexibility. The fabric
which takes the 100% spandex filament as the main material can
achieve the requirements which can not be achieved by other elastic
fabric in the aspects of shape, appearance and practicability. The
novel 100% spandex fabric has good elastic resilience, fecundity,
durability, softness and thinness, which can replace prior
conventional rubber products, and provide flatness, soft hand feel,
sound resilience and comfort wear, etc. The present novel 100%
spandex fabric can be widely applied to the field of underwear,
such as brassiere, shoulder straps, swimwear, briefs, etc.
[0007] 4. The principle of the traditional knitted weaving
structural is as follows: crocheting warp yarn, weft yarn, and
elastic filament. Generally, the warp yarn and weft yarn are made
of elastic yarn, such as nylon, chevilled silk, polyester yarn,
etc. The materials with different properties are crocheted to
achieve a certain required effect. The traditional material
structural principle was changed by the novel 100% spandex fabric
of the present invention, which is formed by completely crocheting
100% spandex materials (namely warp yarn, weft yarn and elastic
filament are all the same spandex filament material). Repeated
testing by LTD06 proves that machine elongation and recovery of the
fabric are raised and retracted almost linearly on the computerized
data and not the parabola profile of conventional fabric strips
shown during elongation testing. The length of the elongated fabric
after retracted is nearly the same as the original length of the
fabric. Therefore, compared with the original fabric, the fabric
can provide more stability, durability and resistance to raveling
in with respect to the structure, and has good elastic recovery
rate and strength.
[0008] 5. The weaving process and the features of the present novel
100 percent spandex fabric are as follows:
[0009] I. Warp yarn and weft yarn of 100% spandex filament material
are crocheted with each other.
[0010] II. The back weft of the spandex filament is passed through
a filament packaging frame and a filling yarn accelerating conveyer
device is provided.
[0011] III. The phenomenon of fabric selvedge rolling should be
prevented. The specification of the spandex filament for filling
yarn should be considered, and the specification and constituents
of the back weft of the spandex filament should also be
considered.
[0012] The present novel knitted fabric changes the crocheting
principle of ordinary material of traditional knitted fabric,
adopting 100% spandex filament as the main material to change the
elastic resilience, the force and the structure stability of
knitted fabric. The mutual double pulling effect of the knitted
fabric in the spandex filament after crocheting to remedy the
defaults of the fabric that the structure is deformed and the
elastic resilience and the force are weakened after the fabric is
elongated. Compared with the traditional woven band, which the warp
yarn and weft yarn are mainly made of elastic nylon with a 1.2 to
1.5 times elastic recovery rate, the warp yarn and weft yarn made
of spandex can have a 5 to 8 times elastic recovery, thus would be
easily found that the elastic recovery and force of the present
100% spandex fabric would be greatly increased and improved because
its warp yarn and weft yarn are both made of spandex yarn.
[0013] After the test of stretch by hand, the present novel fabric,
no matter vertically stretched or horizontally stretched hardly,
the fabric can almost recovery to its original shape after the
external force is released. Therefore, the fabric crocheted by 100%
spandex material has a pretty much better elongation recovery and
the elongation force than those ordinary woven band. The testing
result of LTD06 is can provide a good illustration by comparing
other fabric, which is shown as follows:
[0014] Comparing Explanation in Attached Diagram
[0015] The diagram is the comparing diagram of the elastic
resilience and force of the ordinary elastic woven band and the
present novel 100% spandex fabric.
[0016] Comparative diagram of the elastic resilience and force of
the ordinary elastic woven band and the novel 100% spandex
fabric
TABLE-US-00001 Items Elongation F F F at 3.3 Ibf Recovery (40%)
(60%) (80%) Types (%) (%) (Ibf) (Ibf) (Ibf) Ordinary 188.8 92 0.303
0.438 0.559 spandex woven band 100% 76.69 97 1.439 2.228 -- spandex
fabric
Attached knitted fabric structural diagram (see attached sheet)
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] FIG. 1 shows the Application schematic diagram of 100
percent spandex fabric replacing rubber bands or elastic rubber
pieces.
DETAILED DESCRIPTION OF PARTICULAR EMBODIMENTS OF THE INVENTION
[0018] Compared with ordinary woven band, the 100% spandex fabric
greatly enhances the elastic resilience and force. In addition, the
fabric has high wear resistance, maintaining good elastic
resilience and force after long-term wear, which can solve the
difficulties that the shoulder straps easily become slide and
provide a weak elastic resilience and force. Meanwhile, the 100
percent spandex fabric can meet the requirements on flatness,
smoothness, close fit, sound elasticity, high level of wearing
comfort, good hand feel, etc, which can be applied to brassiere (to
aid the elastic supporting effect between cups and the back
buckle), shoulder strap, swimwear, briefs, lingerie, etc.
[0019] The concrete weaving process of present novel fabric is as
follows:
[0020] I. Warp yarn and weft yarn which are made of 100% spandex
filament material are mutually crocheted.
[0021] II. The back weft of the spandex filament is required to
pass through a filament packaging frame and a weft yarn
accelerating conveyer device is provided.
[0022] III. Curling is required to be avoided. The specification of
the spandex filament of which the warp yarn used required to be
considered, so is the specification and constituents of the back
weft made of the spandex filament.
[0023] Considering that it is difficult for spandex to color and
the material is laminated to the inner layer, which is invisible
from the outer layer, the material can directly enter the next
layer, which is invisible from the outer layer, the material can
directly enter the next laminating process without dyeing.
[0024] The greige strap produced is preset at a high temperature.
The purpose thereof is to stabilize the specification of the fabric
and avoid deformation and curling of fabric. Meanwhile, since there
is a large amount of silicone oil on the surface of the spandex,
the oil on the fabric surface can vaporize through presetting at a
high temperature. The presetting temperature must be above 192
degrees Celsius. The optimal setting effect can be achieved by
adjusting parameters such as temperature and speed according to
different thickness.
[0025] The preset fabric is placed in a vat for fumigation and
phenolic yellowing processing so as to prevent unfavorable effect
due to yellowing in later storage or use, and is then dried. Since
the specification is predetermined in presetting, only a low
temperature is required for drying.
[0026] The processed material or cut piece to be laminated is
evenly spread on a cutting table, and glue is evenly applied
thereon, and then the 100% spandex strap is firmly bonded between
the upper and lower layers of other materials at a high temperature
and under a high pressure. In the position `1` in the following
diagram, before the strengthening between the cups, back buckles
and the shoulder straps are increased through rubber bands or
elastic rubber pieces, while 100% spandex fabric is adopted in the
underwear, which can provide relatively flatness, sound elastic
resilience, fashion outlook, good hand feel, convenient use,
comfortable wear, etc.
[0027] While the preferred embodiment of the present invention has
been described in conjunction with the drawings, the present
invention is not limited to the above embodiment. The above
embodiment is only illustrative and not limitative. Without
departing from the basis of the present invention and the scope
sought for protection by the claims, a person skilled in the art
can further make many forms, all of which belong to the protection
scope of the present invention.
Attached sheet: knitting structural diagram of the 100 percent
spandex fabric
FIELD OF THE INVENTION
[0028] The present invention relates to the filed of fabrics,
specifically to elastic strap and underwear, particularly to
elastic strap.
BACKGROUND OF THE INVENTION
[0029] Presently, strap is widely applied in textile industry and
people's daily life, particularly in garment industry, which used
as essential accessories of underwear. It is known that elastic
materials are used for the upper and lower bundles (i.e. flanks) of
bras in order to assist the cups in supporting the breasts and
keeping them in position relative to the chest circumference. In
addition, elastic strap is also used for the bra straps and the
waists of panties to increase elasticity. In the present market,
elastic strap is mainly used with two methods. One is to enclose
them in cloth through flat seams. The other is to directly attach
them to cloth. However, the conventional elastic strap have poor
elastic resilience and will easily have elastic creep and lose
elasticity after being used several times. The elastic strap will
cause uneven pressure in some parts regardless whether they are
enclosed in or attached to the shell fabrics. It is difficult for
them to meet the main requirements on flatness, smoothness, close
fit, sound elasticity, high level of wearing comfort, etc.
SUMMARY OF THE INVENTION
[0030] An object of the present invention is to provide a strap
having a "memory" function which has sound elastic resilience to
increase the elasticity of and strengthen the support for
underwear, meeting the requirements on flatness, smoothness, close
fit, sound elasticity, high level of wearing comfort, etc.
[0031] The technical solution used in the present invention is:
making a strap having a "memory" function, comprising a woven main
body of 100% spandex fabric.
[0032] The main body of the strap having the "memory" function is
made by weaving or knitting 100% spandex material.
[0033] In the present invention, the strap having the "memory"
function is made of 100% spandex material, which provides sound
elastic resilience and can recover its original shape after
stretching by 800%. This means the strap can be easily stretched
but still closely cling to the surfaces of the human body after
returning. It has little binding force on the human body. It can be
easily elongated by 2 to 5 times its original length and quickly
recover to the original length after the external force is
released. It is light and thin, providing good levelness, excellent
hand feel, good elastic resilience, and comfortable wear when used
to replace the existing ordinary rubber bands. It can be widely
applied in the garment industry, especially in the field of
underwear such as brassiere, swimwear, briefs, lingerie, etc.
[0034] With a pulling force 3.3 lbf, using the LTD06 method to test
and compare the three weaving solution (a. the warp yarn and the
weft yarn are both made of 100% spandex; b. the warp yarn is made
of 100% spandex and the weft yarn is made of nylon; c. the warp
yarn is made of bao gen yarn and the weft yarn is made of nylon) in
the specimen of the same parameter and structure, the average value
is described as table 1, which shows the strap having the "memory"
function can almost recovery its original shape after stretched
many times.
[0035] Another significant characteristic of the present strap
having the "memory" function is that this kind of strap is not
easily torn and bursted. Since the laminating strap the present
market required is thin, the weft yarn is easily torn and bursted
under the external force and is difficult to recover its original
shape after the external force is released. However, the present
invention, strap having the "memory" function is not only thin, but
also can solve the above mentioned problem because the weft yarn of
the new strap is made of 100% nylon, which makes the weft yarn has
elasticity, thus making the strap is difficult to be torn and
bursted under the external force. Although be torn or bursted, can
recovery to the original shape immediately without any marks.
BRIEF DESCRIPTION OF THE DRAWINGS
[0036] FIG. 2 shows the structure of a "memory" strap according to
the present invention.
[0037] FIG. 3 shows the underwear made of the strap having the
"memory" function, which is flatness, sound elasticity, nice
recovery, providing vogue style, excellent hand feel, convenient to
use, high level of wearing comfort, etc.
DETAILED DESCRIPTION OF PARTICULAR EMBODIMENTS OF THE INVENTION
[0038] The following is the detailed description of an embodiment
of present invention.
[0039] The process of producing the fabric comprises the following
steps: [0040] (1) The 100% spandex warp threads are fed by a beam
package such that they pass through shuttle-woven heddles; [0041]
(2) The harness frame drives the heddles to move up and down such
that the warp yarns are separated into upper and lower layers to
form a space; [0042] (3) The weft filling hook drives the 100%
spandex weft threads across the space, and a latch needle catches
the 100% spandex weft threads or 100% spandex edge yarn; [0043] (4)
The reed wobbles back and forth to beat up the weft threads passing
through the space so as to form a woven band.
[0044] 100% spandex strap is formed by said stitches, and
meanwhile, different tensile requirements can be met by spandex
yarn of different structures, density and specification.
[0045] The greige strap produced is preset at a high temperature.
The purpose thereof is to stabilize the specification of the fabric
and avoid deformation and curling of fabric. Meanwhile, since there
is a large amount of silicone oil on the surface of the spandex,
the oil on the fabric surface can vaporize through presetting at a
high temperature. The presetting temperature must be above 192
degrees Celsius. The optimal setting effect can be achieved by
adjusting parameters such as temperature and speed according to
different thickness.
[0046] The said strap is required for fumigation and phenolic
yellowing processing so as to prevent unfavorable effect due to
yellowing in later storage or use.
[0047] Considering that it is difficult for spandex to color and
the material is laminated to the inner layer, which is invisible
from the outer layer, the material can directly enter the next
layer, which is invisible from the outer layer, the material can
directly enter the next laminating process without dyeing. That is
to say, the processed material or cut piece to be laminated is
evenly spread on a cutting table, and glue is evenly applied
thereon, and then the 100% spandex strap is firmly bonded between
the upper and lower layers of other materials at a high temperature
and under a high pressure.
[0048] While the preferred embodiment of the present invention has
been described in conjunction with the drawings, the present
invention is not limited to the above embodiment. The above
embodiment is only illustrative and not limitative. Without
departing from the spirit of the present invention and the scope
sought for protection by the claims, a person skilled in the art
can further make a lot of forms, all of which belong to the
protection scope of the present invention.
[0049] Table 1 is a comparison of stretching-resilience performance
between the ordinary elastic strap and the strap having the
"memory" function;
TABLE-US-00002 items Elongation F F F at 3.3 lbf Recovery (20%)
(40%) (60%) kinds (%) (%) Ibf Ibf Ibf 2 cycles of 82.3 88 0.510
0.688 1.563 stretching with "1" 2 cycles of 70.9 92 0.545 0.91 1.87
stretching with "2" 2 cycles of 90.2 99.9 0.741 1.431 2.074
stretching with "3" 10 cycles of 88 85 0.468 0.625 1.488 stretching
with "1" 10 cycles of 75 90 0.504 0.845 1.581 stretching with "2"
10 cycles of 98 99.6 0.728 1.411 2.000 stretching with "3"
[0050] Brief Description of the Table: [0051] "1" shows the strap
with warp yarn made of 100% spandex while the weft yarn is made of
nylon; [0052] "2" shows the strap with warp yarn made of bao gen
yarn (that is, spandex is wrapped by nylon), while the weft yarn is
made of nylon; [0053] "3" shows the strap having "memory" function,
that is, warp yarn and weft yarn are both made of 100% spandex.
FIELD OF THE INVENTION
[0054] The present invention relates to the field of textile,
specially to a laminated fabric formed by laminating a 100% spandex
elastic woven band and shell fabric.
BACKGROUND OF THE INVENTION
[0055] Presently, woven bands are widely applied in the textile
industry and for other uses in people's daily lives, particularly
in the garment industry, which used as accessories of underwear. In
the present market, woven bands are used with two methods. One is
to enclose them in cloth through flat seams. The other is to
directly attach them to cloth, which is playing a increasingly
vital role. Currently, conventional laminated elastic woven bands
are woven integrally by incorporating nylon into different fibers
such as spandex, however, due to the limitations of weaving
machinery and the nature of the yarns, the woven bands are usually
made relatively thick to ensure a relatively good elasticity and
elastic resilience thereof, and thus either red impressions will be
left on the parts of the skin bearing force, or the wearer may feel
uncomfortable after wearing them for a long time. Furthermore,
elasticity is easily impaired, resulting in a reduced recovery, and
laminating the bands on the inner side of the shell fabric will
cause uneven pressure on the force bearing portions, which is
difficult for them to meet the main requirements on flatness,
smoothness, high level of wearing comfort, close fit, sound
elasticity, etc.
SUMMARY OF THE INVENTION
[0056] To solve the aforesaid problem, we have developed a new
process of manufacturing laminated elastic fabric by laminating
shell fabric to 100% spandex elastic woven band, which can not only
solve the problems resulting from the uneven force on the human
body, but also enhance the elastic resilience of the fabric;
furthermore, the process can be used to increase the elasticity and
strengthen the support for the underwear, meeting the requirements
on flatness, smoothness, close fit, sound elasticity, high level of
wearing comfort, etc.
[0057] The new laminated elastic fabric main body is formed by
laminating shell fabric to 100% spandex elastic woven band.
[0058] The present elastic woven band adopts 100% spandex material,
which has good elastic resilience and can be stretched to more than
500% and return to its original shape. That is to say, the fabric
can be easily stretched and after returning, it can still closely
cling to the surfaces of the human body. It has very little binding
force to the human body and can be easily elongated by 2 to 5 times
its original length and quickly recover to the original length
after the external force is released. Furthermore, said woven band
is relatively light and thin, and has the characteristics of being
light and thin, providing good levelness, excellent hand feel, good
elastic resilience, comfortable wear, etc. when used to replace the
existing ordinary woven bands. It can be widely used in the garment
industry, especially in the field of underwear such as brassiere,
swimwear, briefs, lingerie, etc. Furthermore, the woven band will
not easily rip or burst. Since the laminated woven band currently
used on the market is required to be relatively thin, it will
easily rip or burst weftwise under external force and is difficult
to return to its original shape after the external force is
released. However, the 100% spandex laminated woven band of the
present invention is not only light and thin but can solve said
problem. Since the weft threads of the present invention adopt 100%
spandex material, it has certain elasticity weftwise so that the
woven band will not easily rip or burst under external force. Even
if it does rip or burst, it can immediately return to its original
shape after the external force is released without leaving any
impression and the recovery is nearly 100%.
BRIEF DESCRIPTION OF THE DRAWINGS
[0059] FIG. 4 shows an underwear adopting said 100% spandex
laminated shoulder straps, which has the characteristics of
relative levelness, good elastic resilience, good recovery,
fashionable appearance, excellent hand feel, convenient use,
comfortable wear, etc.
[0060] FIG. 5 shows a schematic view of a structure of the 100%
spandex laminated woven band.
[0061] FIG. 6 shows a schematic view of the new laminated fabric
having a single layer laminated structure as shoulder straps.
[0062] FIG. 7 shows a schematic view of the new laminated fabric
having a double layer laminated structure as shoulder straps.
DETAILED DESCRIPTION OF PARTICULAR EMBODIMENTS OF THE INVENTION
[0063] The manufacturing process and use of the new fabric is
described in detail as follows.
[0064] The detailed process for manufacturing the 100% spandex
laminated elastic woven band comprises the following steps: [0065]
(1) The 100% spandex warp threads are fed by a beam package such
that they pass through shuttle-woven heddles; [0066] (2) The
harness frame drives the heddles to move up and down such that the
warp yarns are separated into upper and lower layers to form a
space; [0067] (3) The weft filling hook drives the 100% spandex
weft threads across the space, and a latch needle catches the 100%
spandex weft threads or 100% spandex edge yarn; [0068] (4) The reed
wobbles back and forth to beat up the weft threads passing through
the space so as to form a woven band.
[0069] The 100% spandex woven band formed by said structures can be
used to meet different requirements using different structures,
manufacturing densities and by adopting spandex yarns of different
specifications.
[0070] The greige band produced must be preset at a high
temperature. The purpose thereof is to stabilize the specification
of the fabric and avoid deformation and curling of the fabric.
Meanwhile, since there is a large amount of silicone oil on the
surface of the spandex, the oil on the fabric surface can vaporize
through presetting at a high temperature. The presetting
temperature must be above 130 degrees Celsius. The optimal setting
effect can be achieved by adjusting parameters such as temperature
and speed according to the thickness.
[0071] Said woven band must go through fumigation and phenolic
yellowing processing so as to prevent unfavorable effect due to
yellowing in later storage or use.
[0072] The process of manufacturing the laminated fabric:
[0073] Considering that it is difficult for spandex to color and
that it is laminated to the inner layer of the shell fabric and is
invisible from the outer layer, it can directly enter the next
laminating process without dyeing.
[0074] The processed shell fabric or cut piece to be laminated is
evenly spread on a cutting table, and glue is evenly applied
thereon, and then the 100% spandex woven band is firmly bonded
between the upper and lower layers of the shell fabric at a high
temperature and under a high pressure.
[0075] There are mainly two laminating processes:
[0076] 1. Single Layer Processing:
[0077] As shown in FIG. 3.
[0078] The advantages of the product thereof include:
[0079] A. The band is thinner than conventional laminated woven
band, more closely clinging to the human body and has a better
wearing effect;
[0080] B. The outer layer of the woven band can be selected to
match the shell fabric of the underwear to make the style match
better;
[0081] C. A better skin-clinging effect which effectively reduces
the pressure caused by the pulling force of the woven band to the
skin; and
[0082] D. A better elastic resilience than conventional laminated
woven band due to a higher spandex content.
[0083] 2. Double Layer Processing:
[0084] As shown in FIG. 4.
[0085] The advantages of the product thereof include:
[0086] A. Lifting for the breasts can be effectively strengthened
by adjusting the position of the lining spandex woven bands or
doubling or multiplying the area of the woven bands according to
the volume of the breasts to increase partial pulling force of the
woven bands.
[0087] B. According to the principles of ergonomics and geocentric
gravity, the support for the breasts by shoulder straps can be
adjusted by increasing the area of the lining spandex woven bands
on parts of the shoulder straps.
* * * * *