JP2012087418A - Worsted-tone elastic fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a worsted-tone elastic fabric excellent in sense of wearing and sewability, having features of a hemp woven fabric, a cotton and hemp woven fabric and a cellulose-based filament yarn woven fabric such as cool feeling and comfort, and features of a worsted woven fabric such as a little difference between a thick fiber and a thin fiber, inconspicuous slub and the like in appearance, glossiness and bulking feeling.SOLUTION: A worsted-tone elastic fabric comprises a conjugate false twisted yarn including: a cellulose-based filament yarn having an R ratio of 8% or less and heat-settability; and a polyester conjugate filament yarn composed of two kinds of polymers different in heat shrinkability, the conjugate false twisted yarn having a non-untwisted portion and an excessively untwisted portion each having a length of 30-230 cm, and having a mixture ratio of the polyester conjugate filament yarn of 15 mass% or more and less than 50 mass%, where R(%)=[(m-m')/m']×100, m denotes mass (g) of a sample in a standard state, and m' denotes absolute dry mass (g) of the sample.

Description

  The present invention relates to an eyelash-like stretchable fabric, and more particularly to a eyelash-like stretchable fabric having the characteristics of a cellulosic fiber fabric and the features of a eyelash-like fabric, and having a comfortable wearing feeling and excellent stitchability.

  Woven textiles have little difference in spun yarn, slabs and neps are inconspicuous, have the appearance of a filament yarn fabric, a high-grade luster, a soft and swollen texture, and are also hygroscopic. Excellent and comfortable wearing feeling is obtained, and it is popular as a high-quality and comfortable fabric. In addition, products in which twisted yarn is strengthened to give a refreshing feeling, and products that are combined with a stretchable material to give moderate stretchability are on the market. However, the eyelash fabric is expensive because it uses thin and long high-grade hair. Further, the refreshing refreshing feeling of hemp fabric, cotton hemp fabric and other cellulosic fiber fabrics cannot be obtained.

  On the other hand, linen fabric and cotton linen fabric have a unique feeling of different fineness due to fineness spots of hemp, a dry and refreshing texture, a light feeling due to the hollow structure, an excellent crispness, moisture absorption and moisture release It is widely recognized as a comfortable luxury summer clothing and luxury cool fabric. However, there are few differences in thickness as in a worsted fabric, and slabs and neps are not conspicuous, and the appearance, high gloss, soft texture and the like as in a filament yarn fabric cannot be obtained. In addition, linen fabric and cotton linen fabric also have problems such as easy to wrinkle and low handling fastness and low wet friction fastness, poor color development, high price and unstable price. . Cellulosic filament yarn fabrics can also be produced with excellent refreshing feeling and high-quality silk-like luster and color developability, but have a problem of lack of bulge feeling as compared with the worsted fabrics.

  As the woven fabric with the appearance and elasticity of the eyelash fabric, we proposed a woven fabric that uses two types of polyester-based polymer filament yarns with different heat-shrinkability and polyester-type filament yarns that have no composite structure. (Patent Document 1) and commercial products are also on the market. However, these products have problems such as waxy and hard texture of polyester fiber filament yarn, damp feeling due to lack of hygroscopicity, generation of static electricity, and the like, and are inferior to a refreshing feeling and a high-class feeling.

JP 2003-239155 A

  The purpose of the present invention is to provide a refreshing feeling that is a feature of linen fabric, cotton hemp fabric, cellulosic filament yarn fabric, etc., comfort due to moderate hygroscopicity, etc. An object of the present invention is to provide an eyelash-like stretchable woven fabric having an inconspicuous high-grade appearance and gloss, soft and swollen texture, and excellent wear feeling and sewability.

The gist of the present invention consists of a cellulose filament yarn having a heat setting property with an R ratio determined by the following formula of 8% or less, and a polyester composite fiber filament yarn comprising two polyester polymers having different heat shrinkage properties, A composite false twisting process in which each length has an untwisted portion of 30 to 230 cm and an overtwisted portion of 30 to 230 cm in length, and the mixing ratio of the polyester composite fiber filament yarn is 15% by mass or more and less than 50% by mass. It is in a lash-like elastic fabric, which is composed of yarn.
R (%) = [(m−m ′) / m ′] × 100
m: Standard state mass of the sample (g)
m ′: absolute dry mass of the sample (g)
(Note that the mass in the standard state is pre-dried (the sample is made constant in an environment where the relative humidity is 10 to 25% and the temperature does not exceed 50 ° C.) and then the standard state (the temperature is 20 ± 2 ° C. and the relative humidity is 65 ± 4%). ) Is a mass in a state where the sample is left in the environment of a constant weight, and the absolutely dry mass is a mass in a state where the sample is left in a hot air dryer at a temperature of 105 ± 2 ° C.

  According to the present invention, the refreshing refreshing feeling that is a feature of hemp fabric, cotton hemp fabric, cellulosic filament yarn fabric, etc., comfort due to appropriate hygroscopicity, etc. It has a high-quality appearance with inconspicuous slabs and necks, a high-quality luster, a soft and swelled texture, and the use of stretchable fibers for comfortable wearing and sewing An excellent eyelash-like stretchable fabric can be provided, and such a fabric can be obtained stably and inexpensively with high productivity.

Hereinafter, embodiments of the present invention will be described in detail.
In the present invention, one cellulose-based filament yarn constituting the composite false twisted yarn is a filament yarn of a fiber semi-synthesized using cellulose as a raw material, and an R ratio obtained by the following formula is 8% or less and heat setting It is a cellulosic filament yarn having properties.
R (%) = [(m−m ′) / m ′] × 100
m: Standard state mass of the sample (g)
m ′: absolute dry mass of the sample (g)
(In addition, the standard mass and the absolute dry mass are as described above.)

  Examples of the cellulose filament yarn having a heat setting property with an R ratio of 8% or less include a cellulose diacetate filament yarn having an R ratio of 6.5% and a cellulose triacetate filament yarn having an R ratio of 3.5%. Examples thereof include cellulose acetate filament yarns, but their production method and type are not particularly limited. Moreover, the cross-sectional shape, surface shape, gloss, fineness, etc. of the single yarn are not particularly limited, and may be arbitrarily selected in consideration of the expression of the fabric to be obtained.

  In particular, in the present invention, the cellulose acetate filament yarn has sharpness, color development, high-grade gloss, moderate Young's modulus, disperse dyeability, and the like due to its low refractive index, and moderate hygroscopicity. It has a quick drying property and has a boiling water shrinkage of about 2 to 3%, which is preferably used. Furthermore, cellulose acetate filament yarn is more preferably used from the viewpoint of texture and glossy feeling.

  In the present invention, when the R ratio of the cellulosic filament yarn exceeds 8%, shrinkage due to water swellability becomes a problem, problems in terms of washing shrinkage, form stability, wet fastness, high water retention and quick drying. Problems such as inferiority. For these improvements, when the mixing ratio of the polyester filament yarn is increased, the metallic luster, color developability, and waxy hard texture, which are the disadvantages of the polyester filament yarn, are emphasized. It can no longer be obtained. Further, if the cellulosic filament yarn is not heat set, there is a problem that the crimped form imparted by false twisting tends to disappear by dyeing or washing.

  Further, in the present invention, the other polyester-based composite fiber filament yarn constituting the composite false twisted yarn is composed of two polyester polymers having different heat shrinkage properties, and two polyesters having different heat shrinkability properties. A composite structure is formed by composite spinning of a polymer, and has stretchability. The polyester-based composite fiber filament yarn according to the present invention is false twisted together with the cellulose-based filament yarn to form a composite false twisted yarn, woven into a woven fabric, and dyed and processed. Together, it gives stretchability to the fabric. There are no particular limitations on the production method of the polyester-based composite fiber filament yarn, the cross-sectional shape of the single yarn, the surface shape, the gloss, the dyeability, the single yarn fineness, the yarn fineness and the like in the present invention.

  The polyester-based composite fiber filament yarn in the present invention may be a so-called latent crimped yarn that becomes a coil shape by heating at the time of dyeing or the like, or when the yarn is unwound from a form such as pann or cheese, so to speak. A so-called actual crimped yarn that is coiled may be used, and is stretchable by coiled crimping. The combination of two types of polyester polymers with different heat-shrinkability preferably has a difference in dry heat shrinkage of 5% or more between the individual fibers of each polymer, and can be crimped by heating or shaping due to the composite structure. There is no particular limitation as long as it is. Further, the composite form, composite ratio, etc. of the composite structure in the polyester composite fiber filament yarn are not particularly limited.

  Examples of the combination of the two polyester polymers include copolymer polyethylene obtained by copolymerizing one side with polyethylene terephthalate, the other side with a dicarboxylic acid such as isophthalic acid, sulfoisophthalic acid or adipic acid, or a diol such as diethylene glycol or polyethylene glycol. A combination of terephthalates, or a combination of two types of polyethylene terephthalate, one of which has a birefringence or intrinsic viscosity different from the other, may be mentioned.

  In addition, the polyester-based composite fiber filament yarn of the present invention, when used as a composite false twisted yarn together with the cellulose-based filament yarn, has different shrinkage mixing based on differences in yarn strength and thermal characteristics of the cellulose-based filament yarn. It exerts effects such as imparting swelling due to the fiber effect, stretchability as a stretched crimped yarn, and imparting elasticity. In addition, by changing the cross-sectional shape and surface shape of single yarn of polyester-based composite fiber filament yarn, gloss, dyeability, single yarn fineness, yarn fineness, etc. It is also possible to effectively impart features.

  The composite false twisted yarn in the present invention is a false twisted yarn having an untwisted portion and an overwound twisted portion, and the lengths of the untwisted portion and the overwound twisted portion need to be 30 to 230 cm, respectively. Preferably, each length is 35 to 180 cm, more preferably 35 to 120 cm. The composite false twisted yarn in the present invention may be a composite false twisted yarn in which the twisting direction in the false twisting is either the Z twist direction or the S twist direction. For example, the twist direction is the Z twist direction. If it exists, the Z twist part and the S twist part to which the Z twist actual twist was given to the untwisted part, and the S twist actual twist was given to the over untwisted part will exist alternately.

  These real twists in the untwisted and overwound twisted portions of the composite false twisted yarn give a sense of sharpness and dryness, and the presence of alternating Z twisted portions and S twisted portions gives a feeling of swelling. And a feeling of different fineness of the shaved yarn tone. If the length of the untwisted part and the overwound part in the composite false twisted yarn is less than 30 cm, the sharpness and tension are too strong, and a high-quality moderate sharpness, dryness and drape are obtained. It is not possible to express a lash-like elastic fabric, and if the length of the untwisted part and the over-twisted part exceeds 230 cm, the fineness unevenness pattern becomes longer, so that a fine fineness expression of the lashed yarn tone is obtained. It is not possible to obtain an appropriate crispness and dryness, and the lash-like stretchable fabric cannot be expressed.

  Further, in the composite false twisted yarn, a short untwisted part, an overtwisted part, an untwisted part, etc. less than 30 cm may exist at the boundary between the Z twisted part and the S twisted part. Furthermore, the composite false twisted yarn may have a portion fused to the untwisted portion or the overwound twisted portion. On the other hand, when there is no fused portion, a soft and bulging texture and a high-quality gloss are obtained.

  In order to obtain the composite false twisted yarn in the present invention, for example, as described in JP-A-8-284033, when false twisting is performed by aligning a plurality of multifilament yarns, rotation of the false twist spindle is performed. Without stopping, the rotation speed of the false twist spindle is increased and decreased randomly in the same direction with a switching time of 0.5 to 2.0 seconds, and the time for which the rotational speed of the false twist spindle becomes constant is 1 second or less. It can obtain by the method of false twisting, restrict | limiting to. Other conditions in the above method include, for example, a false twisting temperature of 160 to 220 ° C., a false twisting speed of 30 to 70 m / min, and a false twist number increase / decrease range of 200 to 4500 T / m. Yarn can be obtained.

  In the composite false twisted yarn constituting the eyelash-like stretchable fabric in the present invention, the mixing ratio of the polyester composite fiber filament yarn needs to be 15% by mass or more and less than 50% by mass. When the blend ratio of the polyester composite fiber filament yarn is less than 15% by mass, the heat shrinkage of the composite false twisted yarn is insufficient, and a soft swell or stretchability cannot be obtained. A waxy peculiar to filament yarn, a hard texture appears, hygroscopicity decreases, and there are problems such as stuffiness and generation of static electricity, and a comfortable wearing feeling cannot be obtained.

  When weaving the woven fabric of the present invention, the composite false twisted yarn in the present invention is used for warp and / or weft, and other filament yarns may be used in addition to the composite false twisted yarn in the present invention. In order to exhibit the effect of the composite false twisted yarn of the present invention and to make a lash-like elastic fabric, the composite false twisted yarn according to the present invention should be used so as to occupy 60% by mass or more of the constituent yarns of the fabric. is required. The weaving method of the woven fabric, the loom, the structure, the basis weight, etc. are not particularly limited, and may be arbitrarily selected in consideration of the representation of the woven fabric to be obtained. The weave density is a factor related to stretchability, and may be set as appropriate in consideration of stretch properties, texture and the like of the intended use of the fabric.

Hereinafter, the present invention will be specifically described by way of examples. In addition, the measurement of R rate in an Example takes about 20g of samples, weighs the mass of the standard state, and the absolute dry mass, calculates by the following formula, and averages twice, JIS Z8401 is one digit after the decimal point Obtained.
R (%) = [(m−m ′) / m ′] × 100
m: Standard state mass of the sample (g)
m ′: absolute dry mass of the sample (g)
The texture, appearance, dyeability and the like of the fabric were evaluated by handling and visual observation.

Example 1
Cellulose triacetate filament yarn (manufactured by Mitsubishi Rayon Co., Ltd., single yarn chrysanthemum cross section, R ratio 3.5%) 110 dtex / 26 filament (f), one is polyethylene terephthalate, the other is polyethylene terephthalate copolymerized with isophthalic acid, Polyester composite fiber filament yarn (manufactured by Mitsubishi Rayon Co., Ltd., single yarn round cross section, R ratio 0.4%) 33 dtex / 12f formed by composite spinning of two kinds of polyester polymers having different shrinkage properties, are aligned and false twisted Twisting direction is Z twist direction, false twisting temperature is 170 ° C., false twisting speed is 60 m / min, false twist increase / decrease range is 3150-3900 T / m, false twist spindle rotation speed increase / decrease switching time is 0.5 False twisting under a condition of ~ 1.0 seconds, an untwisted part having a length of 35 to 100 cm and an overwound part having a length of 40 to 100 cm in the longitudinal direction of the yarn To, mixing ratio of each filament yarn polyester bicomponent filament yarn 23 wt%, cellulose triacetate filament yarns 77 wt%, the yarn fineness creates a composite false twisted yarn 153Dtex.

  A woven fabric having a 2/2 twill structure was woven using the obtained composite false twisted yarn as a warp and a weft. The obtained raw machine was dyed black at 130 ° C. with a disperse dye by a conventional method and finished to obtain a woven fabric having a warp density of 147 pieces / 吋 and a weft density of 94 pieces / 吋. The resulting woven fabric has a moderate harshness, resilience, stretchability, high-grade glossy lash-like appearance, hemp woven-like dry and soft texture, and lash-like woven-like soft swelling It was a stretchy woven fabric with a velvety texture, rich refreshing refreshment, and excellent black color development. Moreover, this fabric had moderate hygroscopicity and quick drying, and was excellent in comfortable wearing feeling and sewability.

(Example 2)
Cellulose triacetate filament yarn (Mitsubishi Rayon Co., Ltd., single yarn chrysanthemum cross section, R ratio 3.5%) 84 dtex / 20f, one is polyethylene terephthalate and the other is polyethylene terephthalate copolymerized with isophthalic acid, differing in heat shrinkability Polyester composite fiber filament yarn (manufactured by Mitsubishi Rayon Co., Ltd., single yarn round cross section, R ratio 0.4%) 56 dtex / 12f formed by composite spinning of two types of polyester polymer, aligned, false twisting direction Is Z twist direction, false twist temperature is 170 ° C., false twist speed is 60 m / min, false twist number increase / decrease range is 3150-3900 T / m, false twist spindle speed increase / decrease switching time is 0.5-1.0. Each filament which is false twisted under the condition of seconds and has an untwisted portion having a length of 35 to 100 cm and an overtwisted portion having a length of 40 to 100 cm in the longitudinal direction of the yarn Mixing ratio is polyester bicomponent filament yarn 40 wt% of the yarn, a cellulose triacetate filament yarns 60 wt%, the yarn fineness creates a composite false twisted yarn 155Dtex.

  A woven fabric having a 2/2 twill structure was woven using the obtained composite false twisted yarn as a warp and a weft. The obtained raw machine was dyed black at 130 ° C. with a disperse dye by a conventional method, and finished to obtain a twill fabric having a warp density of 150 yarns / 吋 and a weft density of 95 yarns / 吋. The resulting woven fabric has a moderate harshness, resilience, stretchability, high-grade luster-like appearance, hemp fabric-like dry and soft texture, and lash-like fabric-like soft swell It was an eyelash-like stretchable fabric with a sensation of texture, rich in refreshing refreshment, and excellent black color development. Moreover, this fabric had moderate hygroscopicity and quick drying, and was excellent in comfortable wearing feeling and sewability.

(Example 3)
In Example 1, when creating a composite false twisted yarn, the twisting direction of the false twist is the Z twist direction, the false twist temperature is 170 ° C., the false twist speed is 60 m / min, and the increase / decrease range of the false twist number is 300 to 300. False twisting is performed under conditions of 2700 T / m, false twist spindle rotational speed increase / decrease switching time of 0.7 to 2.0 seconds, untwisted part length is 80 to 215 cm, over twisted part length Weaving, dyeing and finishing were carried out in the same manner as in Example 1 except that the thickness was 85 to 220 cm to obtain a woven fabric. The resulting woven fabric has moderate resilience, resilience, and stretchability, and has a high-grade glossy-like appearance, and has a soft and swelled-like appearance, and is excellent in black color development. It was an eyelash-like stretchable woven fabric, had moderate hygroscopicity and quick-drying properties, and was excellent in comfortable wearing feeling and sewability.

(Comparative Example 1)
Cellulose triacetate filament yarn (Mitsubishi Rayon Co., Ltd., single yarn chrysanthemum cross section, R rate 3.5%) 167 dtex / 24f and polyethylene terephthalate filament yarn (Mitsubishi Rayon Co., Ltd., single yarn triangular cross section, R rate 0.4%) 56dtex / 36f, the twisting direction of false twist is Z twist direction, false twist temperature is 170 ° C, false twist speed is 60m / min, false twist number increase / decrease range is 2550-3150T / m, false twist The false twisting process is performed under the condition that the spindle rotation speed increase / decrease switching time is 0.5 to 1.0 seconds, and the untwisted part having a length of 35 to 100 cm and the overtwisting part having a length of 40 to 100 cm in the longitudinal direction of the yarn. A composite temporary yarn having a blending ratio of 25% by mass of polyethylene terephthalate filament yarn, 75% by mass of cellulose triacetate filament yarn, and a yarn fineness of 242 dtex. We have created a textured yarn.

  A woven fabric having a 2/2 twill structure was woven using the obtained composite false twisted yarn as a warp and a weft. The resulting raw machine was dyed black at 130 ° C. with a disperse dye by a conventional method and finished to obtain a woven fabric having a warp density of 89 pcs / 吋 and a weft density of 67 pcs / 吋. The resulting woven fabric lacks stretchability, and therefore is inferior in wearing feeling and sewability as compared with the woven fabric obtained in Example 1, and also inferior in bulging feeling. It was not an eyelash-like stretch fabric.

(Comparative Example 2)
In Example 1, when preparing a composite false twisted yarn, the twisting direction of false twist is the Z twist direction, the false twist temperature is 170 ° C., the false twist speed is 60 m / min, and the increase / decrease range of the false twist number is 3150- False twisting is performed under the conditions of 3900 T / m, false twist spindle rotation speed increase / decrease switching time of 2.0 to 3.5 seconds, the length of the untwisted part is 240 to 340 cm, the length of the overwound twist part Weaving, dyeing, and finishing were performed in the same manner as in Example 1 except that 245 to 355 cm was obtained to obtain a woven fabric. The resulting woven fabric lacked a sense of crispness, dryness, and tension, and was inferior to a refreshing feeling and an eyelash-like expression. Further, this woven fabric has a long fineness unevenness pattern expressed by the untwisted portion and the overwound twisted portion of the constituent yarn, and it is difficult to say that the fabric has a feeling of different fineness of the worsted spun yarn.

(Comparative Example 3)
In Example 1, when creating a composite false twisted yarn, the twisting direction of false twist is the Z twist direction, the false twist temperature is 170 ° C., the false twist speed is 30 m / min, and the increase / decrease range of the false twist number is 3150- False twisting is performed under the conditions of 3900 T / m, false twist spindle rotation speed increase / decrease switching time of 0.5 to 1.0 second, untwisted part length is 10 to 20 cm, over twisted part length Weaving, dyeing, and finishing were performed in the same manner as in Example 1 except that the thickness was changed to 15 to 25 cm to obtain a woven fabric. The obtained woven fabric had a sharp feeling, a dry feeling, a strong tension and a lack of swelling.

(Comparative Example 4)
Cellulose triacetate filament yarn (Mitsubishi Rayon Co., Ltd., single yarn chrysanthemum cross section, R ratio 3.5%) 220 dtex / 34f and the same polyester composite fiber filament yarn used in Example 1 (Mitsubishi Rayon Co., Ltd., single yarn round cross section) , R ratio 0.4%) 33 dtex / 12f, the twisting direction of false twist is Z twist direction, false twist temperature is 170 ° C., false twist speed is 60 m / min, false twist number increase / decrease range is 2350-2950T / m, false twisting spindle rotational speed increase / decrease switching time is 0.5-1.0 seconds, false twisted, length of 35-100cm untwisted part, length Having an untwisted portion of 40 to 100 cm, the mixing ratio of each filament yarn is 13% by mass of polyester composite fiber filament yarn, 87% by mass of cellulose triacetate filament yarn, and the yarn fineness is 270 dtex We have created a composite false twisted yarn.

  The resulting composite false twisted yarn was used as warp and weft to weave a 2/2 twilled fabric. The resulting raw machine was dyed black at 130 ° C. with a disperse dye by a conventional method and finished to obtain a twill woven fabric having a warp density of 103 / 吋 and a weft density of 65 / 吋. The obtained woven fabric lacked a feeling of swelling and was poor in stretchability, and was not the eyelash-like stretchable fabric targeted by the present invention.

(Comparative Example 5)
Cellulose triacetate filament yarn (Mitsubishi Rayon Co., Ltd., single yarn chrysanthemum cross section, R ratio 3.5%) 84 dtex / 20f, one is polyethylene terephthalate and the other is polyethylene terephthalate copolymerized with isophthalic acid, differing in heat shrinkability Polyester composite fiber filament yarn (manufactured by Mitsubishi Rayon Co., Ltd., single yarn round cross section, R ratio 0.4%) 110 dtex / 24f formed by composite spinning of two types of polyester polymer, aligned, false twisting direction Z twist, false twist temperature is 170 ° C., false twist speed is 60 m / min, false twist increase / decrease range is 2700-3350 T / m, false twist spindle speed increase / decrease switching time is 0.5-1.0 seconds Each filament having false untwisted portions with a length of 35 to 100 cm and overtwisted portions with a length of 40 to 100 cm in the longitudinal direction of the yarn. The mixing ratio is polyester bicomponent filament yarn 57 wt%, cellulose triacetate filament yarns 43 wt%, the yarn fineness creates a composite false twisted yarn 208Dtex.

  The resulting composite false twisted yarn was used as warp and weft to weave a 2/2 twilled fabric. The resulting raw machine was dyed black at 130 ° C. with a disperse dye by a conventional method, and finished to obtain a woven fabric having a warp density of 133 / 吋 and a weft density of 85 / 吋. The obtained woven fabric has a waxy and hard texture, and feels stuffy because of its low hygroscopicity, and was not the target lash-like stretchable woven fabric of the present invention.

The eyelash-like stretch fabric of the present invention has a refreshing refreshing feeling, which is a feature of hemp fabric, cotton hemp fabric, cellulosic filament yarn fabric, etc., comfort due to moderate hygroscopicity, etc. There is little difference, it has a high-quality appearance with inconspicuous slabs and necks, a high-quality gloss, a soft and swollen texture, etc. Further, it has a stretch feeling and comfortable wearing feeling and stitchability In addition, it can be obtained at low cost with good productivity. Further, the eyelash-like stretchable fabric of the present invention is useful as a high-grade fabric having good handleability, particularly a high-quality summer clothing with a refreshing feeling.

Claims (3)

It is composed of a cellulose filament yarn having a heat setting property with an R ratio of 8% or less determined by the following formula, and a polyester composite fiber filament yarn composed of two polyester polymers having different heat shrinkability, each having a length of 30 to An eyelash-like stretchable woven fabric comprising a composite false twisted yarn having a unmixed portion of 230 cm and an untwisted portion and a mixing ratio of the polyester composite fiber filament yarn of 15% by mass or more and less than 50% by mass .
R (%) = [(m−m ′) / m ′] × 100
m: Standard state mass of the sample (g)
m ′: absolute dry mass of the sample (g)
(Note that the mass in the standard state is pre-dried (the sample is made constant in an environment where the relative humidity is 10 to 25% and the temperature does not exceed 50 ° C.) and then the standard state (the temperature is 20 ± 2 ° C. and the relative humidity is 65 ± 4%). ) Is a mass in a state where the sample is left in the environment of a constant weight, and the absolutely dry mass is a mass in a state where the sample is left in a hot air dryer at a temperature of 105 ± 2 ° C. 2. The eyelash-like stretchable fabric according to claim 1, wherein the cellulose filament yarn having an R ratio of 8% or less and having heat setting properties is a cellulose acetate filament yarn. In the composite false twisted yarn, the twisting direction in false twisting is the Z twist direction, the untwisted part is Z-twisted and the overtwisted part is S-twisted. The eyelash-like stretchable woven fabric according to claim 1 or 2, which is a composite false twisted yarn.