JP2002129448A - Stretch fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stretch fabric capable of being suitably used as a wear use such as working wear and a sports wear and a high grade clothe use required to have an attractive finish and a sewing property, since the fabric is equipped with a moderate stretching property and good touch feeling simultaneously. SOLUTION: This stretch fabric is characterized by using at least a poly lactic acid crimp-processed yarn as its weft yarns, having 10-100% woven crimping rate of the weft yarns and 10-80% elongation rate E1 in weft direction of the woven fabric.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stretch woven fabric using a polylactic acid crimped yarn. More particularly, the present invention relates to a stretch woven fabric that has an appropriate stretch property and can be suitably used for wear applications such as working wear and sports wear, and high-grade clothing applications that require tailoring and sewability.

[0002]

2. Description of the Related Art Polylactic acid fibers are attracting a great deal of attention as biodegradable fibers that decompose in the natural environment, and as novel fibers having excellent coloring and tactile sensation.

[0003] However, polylactic acid woven fabrics do not have stretch properties, and fabrics using these woven fabrics do not follow intense body movements, and in some cases, have a problem of poor wearing comfort. .

Japanese Patent Application Laid-Open No. H11-293551 proposes a stretch woven or knitted fabric composed of polylactic acid fibers and spandex (polyurethane fibers). However,
Although the stretchability of the fabric is improved by including the polyurethane elastic yarn, the drape property of the fabric is deteriorated due to the polyurethane elastic yarn contained therein, resulting in a texture having a slimy feeling. Had.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a high-grade garment which is required to have appropriate stretchability and good texture, to be used for working wear and sports wear, and to be tailored and sewable. An object of the present invention is to provide a stretch fabric that can be suitably used for applications.

[0006]

An object of the present invention is to provide a woven fabric comprising at least a crimped polylactic acid yarn as a weft, wherein the weft has a woven crimp rate of 10 to 100%.
This can be solved by a stretch fabric characterized in that the stretch ratio E1 in the weft direction of the fabric is 10 to 80%.

Further, in this woven fabric, the warp is made of fibers having substantially no crimp and having a woven crimp rate of 0.5 to 5%, and a warp elongation rate E2 of 0.1 to 5%. %, The cloth may have a stretch only in the weft direction.

As the polylactic acid crimped yarn of the present invention, a false twisted yarn can be suitably used.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The polylactic acid crimped yarn used in the present invention is a fiber made of polylactic acid containing L-lactic acid and / or D-lactic acid as a main repeating unit, and is subjected to crimping. What is done.

The method for producing polylactic acid includes a two-stage lactide method in which lactide, which is a cyclic dimer, is once produced from L-lactic acid and / or D-lactic acid as a raw material, and then ring-opening polymerization is performed. There is known a one-step direct polymerization method in which lactic acid and / or D-lactic acid are used as raw materials for direct dehydration condensation in a solvent. The polylactic acid used in the present invention may be obtained by any production method.

The weight average molecular weight of polylactic acid is 80,00
It is preferably from 0 to 170,000. If the weight-average molecular weight is less than 80,000, the strength of the fiber becomes low, and the fiber tends to be broken at the time of spinning or drawing, or the durability of the fabric tends to be poor.
On the other hand, when the weight average molecular weight is higher than 170,000, the molecular orientation during spinning and drawing becomes difficult, so that unevenness is likely to occur. Is not preferable because it becomes remarkable. The weight average molecular weight of the polylactic acid is preferably from 100,000 to 1 for good fiber properties and ease of orientation.
50,000, most preferably 110,000-13
It is 0000.

Further, the polylactic acid in the present invention may be a copolymerized polylactic acid obtained by copolymerizing other components having an ester-forming ability in addition to L-lactic acid and D-lactic acid. As copolymerizable components, glycolic acid, 3-hydroxybutyric acid, 4-hydroxybutyric acid, 4-hydroxyvaleric acid, 6-
In addition to hydroxycarboxylic acids such as hydroxycaproic acid, compounds containing a plurality of hydroxyl groups in a molecule such as ethylene glycol, propylene glycol, butanediol, neopentyl glycol, polyethylene glycol, glycerin, and pentaerythritol or derivatives thereof, and adipine Compounds containing a plurality of carboxylic acid groups in the molecule, such as acid, sebacic acid, and fumaric acid, and derivatives thereof are included. It is desirable that the copolymer component does not contain an aromatic ring in the molecular structure. Further, in order to maintain good mechanical properties, it is desirable that 80 mol% or more be composed of L-lactic acid and / or D-lactic acid components.

In order to reduce the melt viscosity, an aliphatic polyester polymer such as polycaprolactone, polybutylene succinate, polyethylene succinate and polyhydroxybutyric acid can be used as an internal plasticizer or an external plasticizer.

In order to improve the hydrolysis resistance, the carboxyl terminal group of the polylactic acid is treated with a terminal blocking agent such as a carbodiimide compound, an epoxy compound, an oxazoline compound, an oxazine compound, an aziridine compound, a diol compound and a long-chain alcohol compound. Blocked polylactic acid may be used.

Further, inorganic fine particles and organic compounds as a matting agent, a deodorant, a flame retardant, a yarn friction reducing agent, an antioxidant, a coloring pigment and the like can be added as required.

The crimped form of the polylactic acid crimped yarn of the present invention is not particularly limited.
0% is preferable from the viewpoint of good crimp retention. If the CR value is less than 5%, the crimp of the fiber may be insufficient and good stretchability may not be exhibited. Also, it is difficult to give a strong crimp such that the CR value exceeds 40% to the polylactic acid fiber. The crimp restoration rate CR value of the polylactic acid crimped yarn is more preferably from 10 to 30.
%.

There is no particular limitation on the crimping method, and crimping methods such as false twisting, indentation, shaping, knitting, and fluid jetting can be used as appropriate. Among these, the false twisting method is most preferably used because of its excellent economy and good crimping properties. As a false twisting method, twisting the polylactic acid drawn yarn, winding, heat setting at high temperature,
"Twisting-heat setting-untwisting method" to untwist, heat setting in the process of applying false twist to the running yarn and untwisting "heat twisting method" The "drawing false twisting method" in which the sheet is set and then untwisted can be suitably employed.

The boiling water shrinkage of the polylactic acid crimped yarn is 1
Preferably it is 0-80%. If it is less than 10%, shrinkage becomes insufficient during the relaxation heat treatment of the woven fabric, and the texture of the woven fabric may be poor in stretchability. On the other hand, if the boiling water shrinkage exceeds 80%, the shrinkage of the woven fabric becomes extremely large, which not only makes it difficult to design the yarn density of the woven fabric, but also results in a rough and hard texture due to the shrinkage. The boiling water shrinkage is more preferably 10 to 30%.

In order for the stretchability of the woven fabric to be good, it is important that the weft crimp ratio is 10 to 100%. When the woven crimp rate is less than 10%,
The woven fabric cannot be stretched sufficiently, resulting in a woven fabric having almost no stretch property. The woven crimp rate is 100%
Exceeding the drape is undesirable because the drape property of the fabric becomes poor and the texture becomes rough. Weaving crimp rate is 20
When the content is up to 80%, good stretchability and soft texture with drape can be achieved at the same time, and the fabric texture becomes excellent.

The stretch performance of a woven fabric can be directly evaluated by the elongation rate of the woven fabric. In the stretch fabric of the present invention, the elongation rate E1 in the weft direction
However, it is important that it is 10 to 80%. Elongation rate E1
Is less than 10%, stretchability is hardly felt, and there is no difference from ordinary cloth. On the other hand, a fabric having a stretch ratio of more than 80% may have a problem that the density becomes too high, resulting in a heavy fabric and a rough texture.

When the woven fabric of the present invention is used for general clothing, it is desirable that the stretch ratio E1 in the weft direction is 10 to 40%. In general clothing use, a stretch exceeding 40% is not necessarily required, and in some cases, the texture may be deteriorated. When the woven fabric of the present invention is used for sportswear, the stretch ratio E1 in the weft direction is desirably 40 to 80%. When stretch following the intense movement of the body is required, the higher the elongation ratio E1 is, the better. However, when it exceeds 80%, the stretch is too large and the wearing comfort may be impaired.

The polylactic acid stretch fabric of the present invention uses a polylactic acid crimped yarn as a weft, but it is also possible to use a polylactic acid crimped yarn as a warp to make a fabric having a stretch in both the warp and the weft. . The fabric having the stretch performance in both circumstances is suitable for a field such as a sportswear application requiring a high stretch property.

It is, of course, possible to use a drawn yarn having no crimp as the warp. In this case, not only polylactic acid drawn yarn but also polyethylene terephthalate, polybutylene terephthalate, polypropylene terephthalate and the like are used as the warp. Fibers such as aromatic polyester fibers made of copolymers of the following, polyamide fibers such as nylon 6, nylon 66, acrylic fibers made of polyacrylonitrile, cellulose fibers, regenerated cellulose fibers such as rayon and Tencel, and chemical fibers such as cellulose acetate. The use is not limited as long as it has a form. A woven fabric having only a weft made of a fiber having no crimp as a warp yarn is suitable for high-grade clothing applications in which the shape retention of a silhouette is emphasized.

In this case, it is preferred that the warp is a fiber having substantially no crimp and a woven crimp ratio of 0.5 to 5%. If the woven crimp ratio is 0.5% or more, it is possible to make the fabric excellent in sewability and tailoring appearance,
If it is 5% or less, the form retention of the fabric is good. In this case, the elongation ratio E2 in the warp direction of the woven fabric is 0.1 to 5
% Can be suitably adopted. Elongation rate E2 is 0.1
% Or more secures the minimum stretchability when worn, and if it is 5% or less, the form retention of the fabric is good.

The stretched polylactic acid fabric of the present invention can be produced by preparing a greige fabric using at least a polylactic acid crimped yarn as a weft, and performing a relaxing heat treatment in hot water at 50 to 100 ° C. it can.

There are no particular restrictions on the loom used for weaving the polylactic acid stretch fabric of the present invention, and a known air jet loom, water jet loom, rapier loom, or the like can be used.

In the present invention, the relaxation heat treatment can also serve as a scouring step. The scouring relaxation method is not particularly limited, and may be a device for cleaning stains on textiles, an oil agent, or the like, or a hand-out device aiming at a kneading effect or the like. For example, a so-called continuous relaxation scouring method for continuously scouring and relaxing in a spread state or a wince, a batch scouring and relaxing method in non-spreading by a liquid jet dyeing machine may be used, but the shrinkage of the fabric is sufficiently caused to deepen the fabric crimp. For this purpose, it is preferable that the treatment can be carried out without applying tension as much as possible. In particular, the batch scouring relaxation method without spreading the cloth shows a kneading effect by the liquid flow, so that the woven crimp can be made more sophisticated.

Unlike the polyester crimped yarn and the nylon crimped yarn, the polylactic acid crimped yarn is greatly shrunk by the relaxation heat treatment, and the woven crimp can be easily enhanced. This is a phenomenon peculiar to polylactic acid fibers, and the property of easily increasing the woven crimp makes it possible to provide a novel polylactic acid stretch woven fabric having high stretchability.
In this case, in order to improve the woven crimp efficiently,
Shrinkage rate in the weft direction during relax heat treatment is 10 to 50
%.

The structure of the fabric of the present invention is not particularly limited.
In addition to the Mihara organization of plain weave, twill weave, and satin weave, these changing tissues can be adopted.A plain weave organization with many organization points is required to reduce relaxation contraction, and an organization point is required to increase relaxation contraction. It is better to select a twill weave structure and a satin weave structure with less.

[0030]

The present invention will be described in more detail with reference to the following examples. Each characteristic value in the examples was obtained by the following method. A. Weaving crimp rate The measurement was carried out based on JIS-1096, 6.7.2 (yarn shrinkage rate B method). That is, after marking on the woven fabric with a width of 20 cm in the warp or weft direction of the woven fabric, the woven fabric is disassembled and the warp or weft is taken out. Next, a load of 0.09 cN / dtex is applied to the removed yarn to extend the woven crimp, and the length (L) between the marks previously attached in a woven state.
cm and the woven crimp rate is determined by the following equation.

B. Crimp ratio (%) = [(L−20) / 20] × 100 Elongation rate of woven fabric The measurement was performed based on JIS-1096, 6.1.4.1 (elongation rate A method). That is, a woven fabric was used as a sample, attached so that the distance between the lower chucks of the initial load was 20 cm, and a load-elongation curve was drawn under the condition of a tensile speed of 100% / min (20 cm / min). The elongation ratio (%) under a load of 5 kgf is determined, and the average value of three measurements is defined as the elongation ratio E (E1, E2) of the fabric. C. Crimp Restoration Rate (CR Value) of Crimped Yarn The crimped yarn is made into a skein of 10 turns, and is freely shrunk in warm water at 90 ° C. for 20 minutes. After air-drying overnight, apply an initial load of 0.036 times the indicated dtex of the fiber and an actual load of 1.8 times the indicated dtex of the fiber in water at 20 ° C. The length is measured (L ₀ ). Immediately remove the actual load and measure the length of the skein again after 2 minutes (L ₁ ). The value obtained by the following equation was used as the crimp restoration ratio.

Crimp restoration rate (%) = ｛(L₀-L₁) / L₀｝ × 100 D. Boiling water shrinkage rate (boiling yield) Sample is skeined 10 times, and 0.1 cN / dte
The original length (l ₀) Is measured. 98 this skein
Removed after treatment for 15 minutes with no load in boiling water bath at ℃
After air-drying, treatment under a load of 0.1 cN / dtex
Rear length (l₁) Is measured. Boiling the value obtained by the following equation
The rising water shrinkage rate (boiling yield) was used.

E. Boiling yield (%) = {(l ₀ −l ₁ ) / l ₀ } × 100 The texture of the fabric The stretchability and softness (non-stickiness) of the woven fabric of the sample were evaluated by a sensory test. "Excellent" was ◎, "Excellent" was ○, "Normal" was △,
“Inferior” was evaluated as a four-point scale with x. Reference Example 1 Preparation of Polylactic Acid Crimped Yarn A poly L-lactic acid chip having a weight average molecular weight of 120,000 was
It dried for 12 hours with the vacuum dryer set to 105 degreeC. The dried chips were melted at a melter temperature of 220 ° C. by a pressure melter type spinning machine, and introduced into a melt pack having a spinning temperature of 220 ° C., and 0.34 mmφ−0.50 m
It was spun out from a mL cap hole. The spun yarn is heated at 20 ° C and 30 ° C.
After cooling by m / min chimney wind, applying oil and converging, it was taken out at 3000 m / min and 120
A highly oriented undrawn yarn of dtex-36f was obtained.

The highly oriented undrawn yarn is heated by a friction false twisting machine at a hot plate temperature of 120 ° C. and a processing speed of 200 m / mi.
n, a draw ratio of 1.45 times, 3
False twisting was performed using shaft friction. The obtained processed yarn has a crimp, and the boiling water shrinkage of the processed yarn is 1
At 8.0%, the CR value was 16.5%. Reference Example 2 Preparation of drawn polylactic acid yarn In the same manner as in Reference Example 1, using a 80 dtex-24f polylactic acid highly oriented undrawn yarn, using a hot roller type drawing machine, a drawing roller temperature of 90 ° C and a heat set roller temperature of 12
The stretching was performed under the conditions of 0 ° C. and a stretching ratio of 1.45.
The obtained drawn yarn is a raw yarn without crimp and has a fineness of 56d.
tex, strength was 4.0 cN / dtex, and boiling water shrinkage was 4.8%.

Example 1 The polylactic acid crimped yarn (84 dtex) described in Reference Example 1 was used.
Using -36f) as the weft and the warp, a twill (twill 2/2) woven fabric was produced.

The weft obtained had a weft width of 91.3 cm, a warp density of 118 yarns / inch, and a weft yarn density of 120 yarns / inch. When this greige was relaxed and scoured in hot water at 80 ° C. for 20 minutes, the fabric shrank greatly and the weft width became 51.3 cm. The obtained fabric was heat-set at 140 ° C. for 2 minutes using a pin tenter, and then dyed under the following conditions.

The density of the dyed fabric is 133 yarns / inch,
The weft density was 233 yarns / inch. As shown in Table 1, the weft crimp rate was 71.0% and the warp crimp rate was 7%.
0.5%. The elongation ratio E1 in the weft direction and the elongation ratio E2 in the warp direction of the fabric were both high values exceeding 40%, indicating extremely good stretchability. In addition, the texture was soft with no rough or hard feeling.

Dye: Sumikaron Navy
Blue S-2GL (0.6% owf) Carrier: Tetrosin Pen (5% owf) Dyeing condition: 98 ° C. × 30 minutes Bath ratio: 1:50 Example 2 A drawn polylactic acid yarn shown in Reference Example 2 as a warp ( 56 dt
Except for using ex-24f), a twill (twill 2/2) woven fabric was prepared in the same manner as in Example 1.

The weft obtained had a weft width of 91.5 cm, a warp density of 120 yarns / inch and a weft yarn density of 119 yarns / inch. When this greige was relaxed and scoured in hot water at 80 ° C. for 20 minutes, the fabric contracted greatly in the weft direction, and the weft width became 58.2 cm. The obtained fabric was heat-set in the same manner as in Example 1, and then subjected to dyeing.

As shown in Table 1, the woven crimp rate of the weft of the dyed woven fabric was 68.2%, and the woven crimp rate of the warp was 1.8%. The elongation ratio E1% of the fabric in the weft direction is 4
It showed a large value of 0.2%, and had extremely good stretchability. The elongation percentage in the warp direction was 0.9%, and the dimensional stability was good. In addition, the texture was rich in softness and exhibited extremely excellent softness.

Example 3 As the warp, the drawn polylactic acid yarn (56 dt) shown in Reference Example 2 was used.
Except for using ex-24f), a twill (twill 2/1) woven fabric was prepared in the same manner as in Example 1.

The weft obtained had a weft width of 91.5 cm, a warp density of 150 threads / inch and a weft density of 120 threads / inch. When the greige was relaxed and scoured in hot water at 60 ° C. for 20 minutes, the fabric contracted in the weft direction, and the weft width became 66.6 cm. The obtained fabric was heat-set in the same manner as in Example 1, and then subjected to dyeing.

As shown in Table 1, the weft crimp ratio of the dyed woven fabric was 32.4%, and the weft crimp ratio of the warp was 1.7%. The weft elongation E1% of the fabric is 2
It was 4.5% and had good stretchability. The elongation ratio E2% in the warp direction was 2.0%, and the dimensional stability was good. In addition, the texture was rich in softness and exhibited extremely excellent softness.

Example 4 A twill woven fabric (twill 2/1) was prepared in the same manner as in Example 3, except that a commercially available drawn yarn of polyethylene terephthalate (56 dtex-36f) was used as the warp.

The weft obtained had a weft width of 91.5 cm, a warp density of 150 threads / inch and a weft density of 120 threads / inch. When the greige was relaxed and scoured in hot water at 60 ° C. for 20 minutes, the fabric contracted in the weft direction, and the weft width became 69.0 cm. The obtained fabric was heat-set in the same manner as in Example 1, and then subjected to dyeing.

As shown in Table 1, the woven crimp rate of the weft of the dyed woven fabric was 29.8%, and the woven crimp rate of the warp was 1.2%. The elongation ratio E1% in the weft direction of the fabric is 1
It was 9.8% and had good stretchability. The elongation ratio E2% in the warp direction was 0.4%, and the dimensional stability was good. In addition, the texture was rich in softness and exhibited extremely excellent softness.

Example 5 In the same manner as in Example 4, a woven satin weave (five satin) fabric was prepared by using a commercially available drawn warp of polyethylene terephthalate (56 dtex-36f) as the warp.

The weft obtained had a weft width of 91.5 cm, a warp density of 200 yarns / inch and a weft yarn density of 120 yarns / inch. When this greige was relaxed and scoured with hot water at 100 ° C. for 20 minutes, the fabric contracted in the weft direction, and the weft width became 42.0 cm. The obtained fabric was heat-set in the same manner as in Example 1, and then subjected to dyeing.

As shown in Table 1, the weft crimp ratio of the dyed woven fabric was 94.2%. The woven crimp rate of the warp was 1.2%. Elongation rate E1% in the weft direction of the fabric
Was 68.2%, and had very good stretchability. The longitudinal elongation E2% was 1.5%, and the dimensional stability was good. The texture was soft and soft.

Comparative Example 1 The drawn polylactic acid yarn (56 dtex-3) described in Reference Example 2
6f) as weft and warp, and twill (twill 2 /
The fabric of 2) was prepared.

The weft obtained had a weft width of 91.3 cm, a warp density of 120 threads / inch and a weft density of 120 threads / inch. The greige was relaxed and scoured in hot water at 80 ° C. for 20 minutes, but the fabric hardly shrunk and the weft width was 90.3 cm. The resulting fabric was heat-set at 140 ° C. for 2 minutes using a pin tenter.
Staining was performed under the following conditions.

Dye: Sumikaron Navy
Blue S-2GL (0.6% owf) Carrier: Tetrosin Pen (5% owf) Dyeing condition: 98 ° C. × 30 minutes Bath ratio: 1:50 The dyed woven fabric is woven crimp of weft as shown in Table 2. The rate was 1.6%, and the woven crimp rate of the warp was 1.8%. The stretch rate in the weft direction of the fabric was 0.4%, and the stretch rate in the cross direction was 0.8%. No stretch property was felt at all. Comparative Example 2 Twill woven fabric (twill 2/2) obtained in the same manner as in Example 1 was subjected to relaxing hot water treatment at 130 ° C. for 60 minutes. As a result, the fabric was significantly shrunk, and the weft width became 20 cm. . The resulting fabric was heat-set at 140 ° C. for 2 minutes using a pin tenter, and then dyed in the same manner as in Comparative Example 1.

As shown in Table 2, the dyed woven fabric has a weft crimp ratio of 117% and a warp weave crimp ratio of 10%.
4%, too high, 80% in both latitudinal and longitudinal directions
Was exceeded. Although the fabric had very strong stretchability, the fabric shrank too much and had a very coarse texture.

[0054]

[Table 1]

[0055]

[Table 2]

[0056]

The stretch woven fabric of the present invention uses a polylactic acid crimped yarn for at least the weft forming the woven fabric, and the woven crimp of the weft is 10 to 100%. Become. In addition, because it does not use polyurethane elastic yarn, it has a good texture that softens and is suitable for use in working wear and sportswear, and for high-end clothing that requires tailoring and sewability. It can be suitably used.

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] August 23, 2001 (2001.8.2
3)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0036

[Correction method] Change

[Correction contents]

The greige obtained had a weft width of 91.3 cm , a warp density of 46.5 yarns / cm (118 yarns / inch) , and a weft yarn density of 47.2 yarns / cm (120 yarns / inch). Was.
When this greige was relaxed and scoured in hot water at 80 ° C. for 20 minutes, the fabric shrank greatly and the weft width became 51.3 cm. The obtained fabric was heat-set at 140 ° C. for 2 minutes using a pin tenter, and then dyed under the following conditions.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0037

[Correction method] Change

[Correction contents]

The density of the dyed fabric is 52.4 / c
m (133 lines / inch) , the weft density is 91.7 lines / cm (23
3 / inch) , and as shown in Table 1, the woven crimp rate of the weft was 71.0% and the woven crimp rate of the warp was 70.5%. Elongation rate E1 in the weft direction and E2 in the warp direction of the fabric
Were both high values exceeding 40%, showing extremely good stretchability. In addition, the texture was soft with no rough or hard feeling.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0039

[Correction method] Change

[Correction contents]

The weft obtained had a weft width of 91.5 cm, a warp density of 47.2 threads / cm (120 threads / inch) , and a weft density of 46.9 threads / cm (119 threads / inch). Was.
When this greige was relaxed and scoured in hot water at 80 ° C. for 20 minutes, the fabric contracted greatly in the weft direction, and the weft width became 58.2 cm. The obtained fabric was heat-set in the same manner as in Example 1, and then subjected to dyeing.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0042

[Correction method] Change

[Correction contents]

The weft obtained had a weft width of 91.5 cm, a warp density of 59.1 threads / cm (150 threads / inch) and a weft density of 47.2 threads / cm (120 threads / inch). Was.
When the greige was relaxed and scoured in hot water at 60 ° C. for 20 minutes, the fabric contracted in the weft direction, and the weft width became 66.6 cm. The obtained fabric was heat-set in the same manner as in Example 1, and then subjected to dyeing.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0045

[Correction method] Change

[Correction contents]

The weft obtained had a weft width of 91.5 cm, a warp density of 59.1 threads / cm (150 threads / inch) and a weft density of 47.2 threads / cm (120 threads / inch). Was.
When the greige was relaxed and scoured in hot water at 60 ° C. for 20 minutes, the fabric contracted in the weft direction, and the weft width became 69.0 cm. The obtained fabric was heat-set in the same manner as in Example 1, and then subjected to dyeing.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0048

[Correction method] Change

[Correction contents]

The weft obtained had a weft width of 91.5 cm, a warp density of 78.7 yarns / cm (200 yarns / inch) and a weft yarn density of 47.2 yarns / cm (120 yarns / inch) . . The greige 100 ° C., was subjected to relaxation scouring at hydrothermal in for 20 minutes, the fabric contracts in the weft direction, Nukihaba became 42.0Cm. The obtained fabric was heat-set in the same manner as in Example 1, and then subjected to dyeing.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0051

[Correction method] Change

[Correction contents]

The weft obtained had a weft width of 91.3 cm , a warp density of 47.2 threads / cm (120 threads / inch) and a weft density of 47.2 / cm (120 threads / inch) . . This greige was relaxed and scoured in hot water at 80 ° C. for 20 minutes.
0.3 cm. The obtained fabric was heat-set at 140 ° C. for 2 minutes using a pin tenter, and then dyed under the following conditions.

 ──────────────────────────────────────────────────の Continued on the front page F term (reference) 4L036 MA04 PA07 PA15 RA04 UA06 4L048 AA20 AA51 AA55 AB07 AB21 AC12 BA01 CA04 DA03

Claims (3)

[Claims] 1. A woven fabric comprising a polylactic acid crimped yarn as at least a weft, wherein the weft has a woven crimp rate of 10 to 10.
100%, and the weft elongation rate E1 of the woven fabric is 10 to 8
Stretch fabric characterized by being 0%. 2. A warp comprising fibers having substantially no crimp and having a woven crimp rate of 0.5 to 5%, and a warp elongation E2 of the woven fabric of 0.1 to 5%. The stretch woven fabric according to claim 1, wherein: 3. The stretch woven fabric according to claim 1, wherein the polylactic acid crimped yarn is a false twisted yarn.