WO2008075431A1

WO2008075431A1 - Polyester woven fabric

Info

Publication number: WO2008075431A1
Application number: PCT/JP2006/325493
Authority: WO
Inventors: Kenji Ishimine; Sumio Hisinuma; Kazuyuki Adachi
Original assignee: Toray Industries, Inc.
Priority date: 2006-12-21
Filing date: 2006-12-21
Publication date: 2008-06-26

Abstract

[PROBLEMS] To provide a comfortable polyester woven fabric which has extraordinarily high water-proofing properties and has higher stretchability. [MEANS FOR SOLVING PROBLEMS] The polyester woven fabric is characterized in that either of the warps and wefts are microfiber yarns having a single-fiber fineness of 0.01-1.1 dtex, and that the other are multifilament yarns in which each filament is a composite fiber of the side-by-side or eccentric sheath-core type obtained by bonding ingredients along the fiber direction, at least one of the ingredients being a polyester polymer comprising a polyester comprising polytrimethylene terephthalate as the main component. It is further characterized in that the total finish cover factor of the warps and wefts is 1,500-2,500.

Description

Specification

Polyester fabric

Technical field

[0001] The present invention relates to a polyester water-repellent woven fabric having a stretch property that is comfortable to wear and having high density and excellent water repellency and waterproofness.

Background art

[0002] In recent years, there has been a strong demand for advanced functionality and comfort in textile products. Especially in sports and outdoor applications, there is a strong demand for stretch and water resistance in terms of functionality. There is a need for comfortable materials that combine a natural texture and tension.

[0003] In terms of waterproofness, the method of obtaining a dense fabric structure and the power that has been imparted by applying chemicals in the post-processing so far The texture is stiff due to lack of elasticity, and In such a case, there were problems such as steep lack of drape, poor comfort, and poor tailoring.

[0004] In addition, stretch fabrics so far have been mainly knitted fabrics and polyurethane elastic fibers, that is, fabrics using spandex covering yarns. In addition, when span dettas were used, there was a problem of high costs of raw yarn and high-order processing costs.

[0005] In addition, in the method of manufacturing a stretch material using false twisted yarn for the purpose of reducing the cost of raw yarn and high-order cutting work, in order to obtain high crimp and high torque, a pre-twisted Z temporary Twist Z Additional twisting has been made.

[0006] However, in the production process, false twisting after pre-twisting causes yarn breakage during false twisting, and sometimes reduces production efficiency. Furthermore, when weaving, only high-tonolec yarns require advanced techniques for handling, and there are many folds that occur during weaving, making it difficult to stably produce high-quality fabrics. is there. In spite of strong twisting, false twisting is performed but sufficient stretch is not obtained, the texture is fluffy and wrinkled, and the fabric surface is not plain. It was.

[0007] For example, a force organization that can obtain a yarn having a certain degree of stretchability by applying a plain woven double woven fabric using high crimped yarn for warp and weft yarn (see, for example, Patent Document 1) Change There was a problem that the stretchability when it was made into a high density woven fabric was insufficient, and it was difficult to obtain a satisfactory stretch fabric.

On the other hand, various side-by-side type composite fibers of polyethylene terephthalate components have been proposed. For example, a side-by-side type composite yarn having an intrinsic viscosity difference or an intrinsic viscosity difference has been proposed (see, for example, Patent Documents 2 and 3), and a side-by-side composite of non-copolymerized polyethylene terephthalate and a highly shrinkable copolymer polyethylene terephthalate. Yarns have been proposed (see, for example, Patent Document 4).

[0009] If such a side-by-side type composite fiber is used, it is possible to obtain a yarn having a certain degree of stretchability S, the stretchability when made into a woven fabric becomes insufficient, and a satisfactory stretchable woven fabric is difficult to obtain. There was a problem.

Patent Document 1: Japanese Patent Laid-Open No. 2003-20541

Patent Document 2: Japanese Patent Publication No. 44 2504

Patent Document 3: Japanese Patent Laid-Open No. 4-308271

Patent Document 4: JP-A-5-295634

Disclosure of the invention

Problems to be solved by the invention

[0010] In view of the background of strong conventional technology, the present invention is to provide a comfortable polyester woven fabric having a high stretch property that has never been obtained, and having a high density and a waterproof property.

Means for solving the problem

The present invention employs the following means in order to solve the above problems. In other words,

(1) Use one ultrafine fiber yarn with a single fiber fineness of 0.01 decitex or more for one of the warp and horizontal yarns and 1.1 decitex or less. At least one component of the other yarn is polytrimethylene. Uses multifilament yarns of composite fibers in which a polyester-based polymer consisting mainly of terephthalate is bonded to the side-by-side type or eccentric core-sheath type along the fiber length direction, and finishes warp and horizontal yarns. The total power of the cover factor S1500 or more and 2500 or less, polyester fabric characterized by [0012] (2) The polyester woven fabric according to (1), wherein the initial water repellency is 4 or more.

[0013] (3) The polyester woven fabric according to (1) or (2) above, wherein a woven fabric elongation rate in a direction using the composite fiber multifilament yarn is 10% or more.

[0014] (4) The above-mentioned (1) characterized in that the water pressure resistance is 300 mm or more, preferably 400 mm or less.

) To (3), the polyester fabric according to any one of the above.

[0015] (5) The polyester woven fabric according to any one of (1) to (4), wherein the polyester woven fabric is used for an application selected from sports clothing, outdoor clothing, women's outerwear, lining, and underwear. .

The invention's effect

[0016] According to the present invention, a waterproof polyester fabric excellent in stretchability can be provided, and it is widely used for applications selected from sports clothing in general, outdoor clothing in general, women's outerwear, general lining and underwear. . By using the woven fabric of the present invention, it is possible to realize the production of a garment 'fiber product having an unprecedented function.

BEST MODE FOR CARRYING OUT THE INVENTION

[0017] The present invention uses an ultrafine fiber yarn having a single fiber fineness of 0.01 decitex or more and 1.1 decitex or less for one of the warp and horizontal yarns, and at least one component for the other one of the yarns. Uses a multifilament yarn of a composite fiber in which a polyester polymer composed of polyester mainly composed of polytrimethylene terephthalate is bonded to the side-by-side type or the eccentric core-sheath type along the fiber length direction.

[0018] In the present invention, the polyester-based polymer mainly comprising polytrimethylene terephthalate (hereinafter referred to as PTT) constituting at least one component of the side-by-side type composite fiber or the eccentric core-sheath type is a main acid component of terephthalic acid. And 1,3-propanediol as the main glycol component. However, 20 mol ^_0/0 or less, it may also be one more preferred properly containing other ester bonds can form a copolymer component in a proportion of 10 mol% or less Re. Examples of the copolymerizable compound include isophthalic acid, succinic acid, cyclohexanedicarboxylic acid, adipic acid, dimer acid, sebacic acid, 5_sodium sulfoisophthalic acid and other dicarboxylic acids, ethylene glycol, diethylene glycol, butane. The ability to mention diols such as diol, neopentyl glycol, cyclohexane dimethanol, polyethylene glycol, polypropylene glycol, etc. Further, if necessary, titanium dioxide serving as a matting agent, silica or alumina fine particles serving as a lubricant, hindered phenol derivatives or coloring pigments serving as an antioxidant may be added.

[0019] The components of the side-by-side type or eccentric core-sheath type composite fiber include PTT 100% side-by-side type composite fiber or eccentric core-sheath type multifilament drawn yarn that are bonded together with different intrinsic viscosities. Is also preferable. More preferably, one is a polyester component mainly composed of soot (high shrinkage component), and the other is a polyester component mainly composed of polyethylene terephthalate (hereinafter referred to as PET). Multi-filament yarns of composite fibers that are spun into a side-by-side type along the fiber length direction or composite fibers that are spun into an eccentric core-sheath type have a stretch rate and elastic modulus after crimping. It can be very high, has good interface adhesion between PTT and PET, is stable in spinning, and is preferable in terms of mechanical properties, chemical properties, and raw material costs. Furthermore, in order to maximize stretch properties, it is preferable to use these composite fiber multifilament yarns as false twisted yarns.

[0020] The PET is preferably a polyester obtained using terephthalic acid as the main acid component and ethylene glycol as the main glycol component. However, it is preferable to use a copolymer that can form other ester bonds in a proportion of 20 mol% or less, more preferably 10 mol% or less. Examples of the copolymerizable compound include sulfonic acid, sodium sulfonic acid, sulfuric acid, sulfate ester, jetyl sulfate, ethyl sulfate, aliphatic sulfonic acid, ethanesulfonic acid, black benzene sulfonic acid, alicyclic sulfonic acid, isophthalic acid, Dicarboxylic acids such as sebacic acid, azelaic acid, dimer acid, adipic acid, oxalic acid, decanedicarboxylic acid, dicarboxylic acids such as ρ-hydroxybenzoic acid, ε-force prolataton, triethylene glycol, polyethylene Diols such as lenglycol, propanediol, butanediol, pentanediol, hydrated quinone, and bisphenolΑ are preferably used.

[0021] Further, if necessary, titanium dioxide serving as a matting agent, silica or alumina serving as a lubricant, Fine particles, hindered phenol derivatives and coloring pigments may be added as antioxidants.

[0022] In addition, when a side-by-side type composite fiber of PTT and other components is used, the PTT component is 30 to 70% by weight in the composite fiber in terms of yarn production and dimensional homogeneity of the coil in the fiber length direction. More preferably, it is preferably 45 to 65% by weight.

[0023] The cross-sectional shape of the side-by-side type or the eccentric core-sheath type composite fiber may be a round cross section, a triangular cross section, a multi-lobe cross section, a flat cross section, a Dalma type cross section, an X type cross section, or other irregular cross sections. From the standpoint of expression and uniformity of crimp, a flat cross-section with a mushroom-type or dharma-type cross-section is particularly preferred. In addition, a semicircular side-by-side with a round cross-section, a hollow side-by-side aiming at light weight and heat retention, and a triangle-shaped side-by-side aiming at a dry texture are preferably used.

[0024] Here, the mushroom-type flat cross section is, for example, a case where a high stretch polymer homo PTT and a low intrinsic viscosity homo PET are used as an example. This is a side-by-side type composite fiber obtained by laminating composite spinning from the base. The cross-sectional shape of the yarn is a low intrinsic viscosity homo-PET with a mushroom umbrella and a highly stretchable polymer homo PTT with a cross-section similar to a mushroom handle. Shape.

[0025] The total fineness of the side yarns of the side-by-side type or eccentric core-sheath type composite multifilament yarn of the present invention is preferably 22 to 330 dtex. 40 to 165 dtex is more preferable. By setting it to 22 dtex or more, it is possible to obtain a sufficient stretch effect by crimping, and by setting it to 330 dtex or less, it is possible to suppress the wrinkle feeling. Furthermore, 56 ~: 165 dtex is particularly preferred because of its delicate texture and stretch.

[0026] The single fiber fineness of the above-mentioned composite fiber multifilament yarn is preferably 1.1 to 10 decitex, more preferably 1 .:! To 6 decitex. A lance is better.

[0027] The polyester composite fiber multifilament yarn of the present invention is a force having a twist number of 0 or

Preferably it is twisted at 800tZm or less. Those that exceed 800t / m have a strong twist, and a hard texture cannot be obtained. There are problems such as reversal of twisting. By setting the number of twists to 800 tZm or less, there is no need for crimping, soft texture, rewinding caulking and twisting set, and both quality and processing passability are extremely favorable.

[0028] The composite fiber multifilament yarn comprising at least one polyester-based polymer mainly composed of PTT in the present invention is contained in an amount of 10 to 50% by weight based on the total amount of the fabric. It is preferable for obtaining stretchability. More preferably, it is 20 to 40% by weight.

[0029] The polyester composite fiber multifilament yarn of the present invention has a stretch elongation ratio of 10% or more after being crimped by heat treatment in order to give the fabric an appropriate stretch property as an object of the present invention. Is preferable. More preferably, it is 20% or more, more preferably 25% or more, and 30% or more, while it is preferably 100% or less.

[0030] The elastic modulus of elasticity is preferably 70% or more, and more preferably 90% or more. When the elastic modulus of elasticity is less than 70%, the fabric base fabric stretch recovery is insufficient, and when it is made into a sewn product, a phenomenon that it is difficult to recover when the fabric is stretched may occur. On the other hand, it is preferably 100% or less.

[0031] As a method for producing the polyester composite fiber multifilament yarn of the present invention, a polyester polymer mainly composed of PTT is used as at least one component, and is melt melt spun into a side-by-side type and stretched. For example, the spinning temperature is 285 to 320 ° C, and the spinning speed is 900 to 1600mZ to make a normal undrawn yarn, which is drawn at a draw ratio of 2.5 to 4.0 times. It is obtained by doing.

[0032] Further, in the present invention, in the case of side-by-side bimetallic composite fibers of PTTZPTT, the polymer intrinsic viscosity (IV) of PTT is 0.5 to 1. A stretched yarn bonded with a low IV of 5 to 0.7 is preferable because high stretchability can be obtained. Intrinsic viscosity (IV value) was measured at 25 ° C in orthochlorophonol by a conventional method.

[0033] In the case of PTTZPET side-by-side bimetal, PTT has a polymer intrinsic viscosity (IV) of 1.50 to: 1.20 high IV, and PET has a polymer intrinsic viscosity (IV) of 0. . Extremely high stretch properties can be obtained with drawn yarns bonded to low IV of 5 to 0.7 So most preferred. In this case, the drawn yarn can be used as it is, and a high stretch property can be obtained.

[0034] In the present invention, a side-by-side type or an eccentric core-sheath composite fiber multifilament yarn is used for one of the warp yarn and the horizontal yarn for either one of the warp yarn and the horizontal yarn. .01 dtex or more 1. Uses ultrafine fiber yarn that is 1 dtex or less. Specifically, for an island / sea ratio of 80/20, for example, 70 islands, 9 filaments, a total fineness of 66 dtex, and a single yarn fineness of 0.08 dtex or more and 1.1 dtex or less are preferable. 0.5 decitex is preferable.

[0035] The ultrafine fiber yarn that is the other of the side-by-side type or the eccentric core-sheath type composite multifilament yarn is a surface feeling, texture, use such as a polyester multifilament yarn such as PET, PPT, and polybutylene terephthalate. It can be appropriately selected depending on the application.

[0036] A high-density woven fabric having a total cover factor of warp and horizontal yarns of 1500 to 2500 in the state of the finished product to provide a waterproof function is good. A high density fabric of 1700 to 2300 is preferred.

[0037] A side-by-side type or eccentric core-sheath type composite fiber multifilament yarn is used in a direction in which it is desired to apply a stretch of either a warp yarn or a horizontal yarn, and either of them, or a woven fabric.

[0038] The woven structure is not limited to a plain weave, and a satin structure, a twill structure, and other various changed structures can be employed in a wide range. In particular, it is possible to give a softer texture and stretch by using a flat double woven fabric.

[0039] In a loom for weaving, a fly shirttle, a water jet room, an air jet room, and a revere room are not limited.

[0040] Relaxing heat treatment after weaving, intermediate setting, alkali weight loss dyeing, water repellent treatment, finishing set, etc. can be carried out under normal conditions. However, in relaxing heat treatment, side-by-side type composite fibers are crimped to restrain the fabric. The temperature in the liquid should be 8

It is preferable to be 0 ° C or higher.

[0041] Next, a water-repellent finish is applied to a woven fabric using side-by-side type composite fibers or eccentric core-sheath type multifilament yarns as either warp yarns or horizontal yarns. For example, fluorine-based, silicon-based, wax-based, and paraffin-based agents can be used as the water-repellent finishing agent. preferable.

[0042] As an embodiment of the water repellent treatment, for example, a treatment liquid containing a fluorine-based water repellent, an amino blast resin, a polyfunctional block isocyanate group-containing urethane resin, and ethylene carbonate in one bath is prepared, and the woven fabric is treated with the treatment liquid. It is preferable to heat-treat after being immersed in the film.

[0043] As the fluorine-based water repellent, for example, a fluoralkyl group-containing acrylic copolymer is preferable. The fluorine-based water repellent is preferably 0.01 to 10 parts by weight, more preferably 0.03 to 5% by weight, based on 100 parts by weight of the polyester fabric.

[0044] Examples of aminoblast resins include melamine resins such as trimethylol melamine and hexamethylol melamine, urea-based resins such as dimethylol propylene urea, dimethylol ethylene urea, and dimethylol hydroxylin urea, and dimethyloluron resin. Etc. can be used. The amount of aminoblast resin used is preferably 0.01 to 10 parts by weight, more preferably 0.02 to: parts by weight in terms of solid content, based on 100 parts by weight of the polyester fabric to be treated. Is good.

[0045] The polyfunctional block isocyanate group-containing urethane resin preferably contains two or more block isocyanate functional groups in the molecule. The amount of the polyfunctional block isocyanate group-containing urethane resin is preferably from 0.0 :! to 4 parts by weight in terms of solid content with respect to 100 parts by weight of the polyester fabric to be treated.

[0046] The blending of ethylene carbonate is preferable because it can provide abrasion resistance in a wet state of water-repellent processing. The amount of ethylene carbonate used is preferably 0.01 to 30 parts by weight, more preferably 2 to 10 parts by weight, based on 100 parts by weight of the polyester fabric. If the amount of ethylene carbonate is too large, the texture of the fabric tends to become hard due to dissolution of the polyester fabric, and if it is too small, the wear resistance tends to decrease.

[0047] The water-repellent performance of the polyester-based water-repellent fabric of the present invention is preferably an initial water repellency of 4 or more and 3 or more after 20 washings. The initial water repellency is the water repellency defined by “Measurement method” in the examples. If the water repellency is 3 or more, the rain will hardly penetrate into the fabric if it is worn for a short time in light rain. [0048] In the polyester-based water-repellent fabric of the present invention, it is important that the stretch rate of the fabric is 10% or more for at least one of the lengths. The fabric elongation rate is a stretch property parameter defined in “Measurement method” in the examples. When the fabric elongation rate is less than 10%, it cannot follow the expansion and contraction of the skin during the movement of the human body, and a satisfactory comfort cannot be obtained, more preferably 20% or more, more preferably 25% or more. It is. Meanwhile, 30. The power of being less than / o.

Furthermore, if the polyester water-repellent woven fabric of the present invention is 300 mm or more, candy hardly penetrates into the woven fabric for a short time when worn in light rain.

Example

[0049] The evaluation used in the examples was evaluated by the following method.

[Melt viscosity]

Measurement was performed in a nitrogen atmosphere using a Capillograph 1B manufactured by Toyo Seiki Co., Ltd. The temperature shown in the examples (275 ° C in Example 1) was taken as the measurement temperature, the measurement was carried out three times at a strain rate of 6080 sec 1 and the average value was taken as the melt viscosity.

[Textile elongation rate]

JIS L — 1096 elongation rate Measured by A method (constant speed elongation method).

[Stretch rate of yarn]

It was evaluated by the JIS-L1013 C method. The larger the value, the better the extensibility.

[Elastic elasticity of yarn]

It was evaluated by the JIS-L1013 C method. The higher the value, the better the recovery.

[Cover factor]

The sum of the product of (square root of warp yarn fineness) and (warp yarn density) and the product of (square root of horizontal yarn fineness) and (horizontal yarn density) was determined.

[Water pressure resistance]

Measured by JIS L1092 high water pressure resistance method.

[Water repellency]

Measured by JIS L-1092 spray test. After water-repellent processing, the initial water repellency is the water repellency in the unwashed state, and the water repellency after washing 20 times according to 103 of JIS L-0217 The water content was also evaluated.

[Soft feeling]

The texture was stretched by 10 texture assessors to determine the softness and evaluated in the following four stages.

[0050] A: Extremely good

Y: Good

Δ: Slightly good

X: Defect

[Example 1]

(1) Raw yarn

For the horizontal yarn, homo-PTT with an intrinsic viscosity (IV) of 1 · 40, melt viscosity at 275 ° C of 750poise and homo-PET with an intrinsic viscosity (IV) of 0.60 and melt viscosity at 275 ° C of 650poise are used. Each melted separately, discharged from a 24-hole composite spinneret at a spinning temperature of 275 ° C at a composite ratio (% by weight) 50:50, and taken up at a spinning speed of 1400 m / min. 56 decitex, 24-filament side-by-side type A composite structure unstretched yarn (fiber cross section is substantially semicircular bonded type) was obtained. Furthermore, using a hot roll-hot plate drawing machine (wetted length: 20 cm, surface roughness: 3S), the hot roll temperature was 75 ° C, the hot plate temperature was 170 ° C, and the draw ratio was 3.3 times. Without pulling once, it was continuously relaxed by 0.9 times and wound to obtain 55 dtex, 24 filament drawn yarn. Both the spinning and the drawing had good yarn-making properties, and no yarn breakage occurred. The drawn yarn was a flat mushroom type cross-sectional yarn having a strength of 4.3 cN / dtex, a stretch elongation of 32%, and a stretch elastic modulus of 80%.

(2) Woven fabric

Polyester ultra-fine wooly yarn (Nanya Co., Ltd. Wool-processed yarn 56T-144-SP) made of 56 dtex 144 filament is used for the warp yarn without actual twisting.

[0051] The two above-mentioned composite yarns obtained above are aligned to the horizontal yarn, and 800tZm of twisted yarn is applied, and the plain weave fabric is warped with a water jet loom as 1 10 dtex, and the horizontal yarn is S127 X 85/2. Weaved at a green density of 54 cm. The total cover factor of warp and horizontal finish was 1748 / 2.54cm. Other details are listed in Table 1.

(3) Processing after dyeing The resulting raw machine was relaxed and heat-treated at 95 ° C with an open soaper, dried, intermediately set at 180 ° C dry heat, dyed at 130 ° C and dried.

[0052] After drying, padding was performed on a water-repellent treatment solution containing the following components. The pick-up of this treatment solution was 60%. The polyester water-repellent fabric of the present invention was obtained by drying at 110 ° C. for 2 minutes and heat-treating at 160 ° C. for 45 seconds to give a water-repellent finish.

Water repellent> Fluorine-based water repellent: Maxguard EC-400 (manufactured by Kyo Silk Chemical Co., Ltd.); 60g ZL aminoblast resin: Sumtex Resin M-3 (manufactured by Sumitomo Chemical Co., Ltd.); 5gZL Amino Blast Resin Catalyst: Sumitex Suxelerator ACX (manufactured by Sumitomo Chemical Co., Ltd.); lg / L Polyfunctional block isocyanate group-containing urethane resin: Super Fresh JB— 7200 (manufactured by Kyokin Kasei Co., Ltd.) ); 8 g / L ethylene carbonate (manufactured by Toa Gosei Chemical Co., Ltd.); Catalyst for 20 g / L block isocyanate: Catalyst WL-2 (manufactured by Kyokin Kasei Co., Ltd.); lg / L.

The density of the finished fabric was 184 x 90 / 2.54 cm.

[0053] As a result of sensory evaluation, the surface of the obtained woven fabric was a woven fabric having a smooth, glossy and soft texture without wrinkles and having a horizontal stretch. As a result of measuring the stretch rate of this fabric, the warp direction was 3% and the horizontal direction was 20%. The water pressure resistance was 40 Omm. At this time, the sum of the cover factors of the warp and horizontal finishes was 2 200 / 2.54 cm. Other details are listed in Table 1.

The pressure for calendering the raw machine obtained by water repellent processing is 10 to 20 tons. The temperature of some metals is 170 ° C to 180 ° C, and the yarn speed is 1 OmZmin to 20mZmin.

[0054] Further, the initial water repellency was 4, and the water repellency after 20 washings was 3, which was a fabric excellent in water repellency.

[0055] [Example 2]

Homo PET with an intrinsic viscosity (IV) of 0.655 as an island component in the warp yarn, and an intrinsic viscosity (IV) of 0.546 as a sea component, and 5-sodium sulfoisophthalic acid with respect to the acid content in the PET Using 0 mol% copolymerized PET, the ratio of island component: sea component is 80:20, 8 islands, 36 filaments, and a total fineness of 66 decitex sea-island composite yarns. Single thread The yarn fineness was 0.18 dtex), the weft yarn of Example 1 was used as the weft yarn, and weaving was performed according to the same standards as in Example 1. At this time, the density of the finished fabric was 127 x 85 pieces Z2. 54 cm. The total cover factor of warp and horizontal yarn finishes was 1833 / 2.54 cm. Other details are listed in Table 1.

The resulting woven fabric was treated with 1.2 wt% NAOH, and the warp sea component was dissolved at a temperature of 90 degrees X 30 minutes. The obtained raw machine was dyed and water repellent processed under the same conditions as in Example 1. At this time, the density of the finished fabric was 160 × 90 pieces Z2.5 4 cm in length and width. The total cover factor for warp and horizontal yarn finishes was 2 139 / 2.54 cm. Other details are listed in Table 1.

As a result of sensory evaluation, the surface of the obtained fabric was smooth, glossy and soft to the touch. As a result of measuring the stretch rate of this fabric, the warp direction was 5% and the horizontal direction was 21%.

The water pressure resistance was 300 mm.

[0056] Further, the initial water repellency was 4, and the water repellency after 20 washings was 3, which was a fabric with excellent water repellency.

[0057] [Example 3]

Use the side-by-side type composite fiber 56 decitex obtained in Example 1 for the warp yarn of Example 1 for warp yarn without applying actual twist to the warp yarn, and the other side of the warp yarn 56 Polyester wool yarn composed of 48 filaments was woven with a plain weft double-tissue fabric using a water jet loom. At this time, the sum of the cover factors for the warp and horizontal finishes was 2200 / 2.54 cm. Other details are listed in Table 1.

The obtained raw machine was dyed and water-repellent processed under the same conditions as in Example 1. The density of the finished fabric was 200 X 120 pieces Z2. 54 cm. The total cover factor for the warp and horizontal yarn finishes at this time was 2614 / 2.54 cm. Other details are listed in Table 1.

[0058] As a result of sensory evaluation, the surface of the obtained woven fabric was smooth and glossy without wrinkles, and had a soft texture. Also, as a result of measuring the stretch rate of this fabric, the warp direction was 3%, Horizontal direction was 25%.

The water pressure resistance was 350 mm.

[0059] Further, the initial water repellency was 4, and the water repellency after washing 20 times was 3, which was a fabric with excellent water repellency.

[0060] [Comparative Example 1]

Use warp yarn with Toray polyester wooly processed yarn consisting of 24 decitex 24 filaments, double draw using 56 decitex 12 filament side-by-side stretch yarn (trade name “〇 ^ ¾-11”) for horizontal yarn We prepared 8001/111 twisted yarns, and weaved plain weave fabrics as 110 dtex using a water jet loom at a raw machine density of 27 X 85 / 2.5 cm. The total cover factor for warp and horizontal yarn finishes was 1748 / 2.54 cm. Other details are listed in Table 1.

The obtained raw machine was dyed under the same conditions as in Example 1. The density of the finished fabric was 164 x 90 pieces / 2.54 cm. At this time, the sum of the cover factors for the warp and weft finish was 2200 / 2.54 cm. Furthermore, as a result of water repellent finishing and measuring the fabric stretch rate, the vertical direction was 3% and the horizontal direction was 10%, which was not satisfactory. The water pressure resistance was 200 mm, which was not satisfactory.

In addition, the fabric was excellent in water repellency and water repellency 3 after the initial water repellency 4 and after 20 washings.

[0061] Thus, the present invention has a stretch property of 20% or more. A waterproof and high-density woven fabric of 300 mm or more was obtained. Other details are listed in Table 1.

[0062] [Table 1]

According to the present invention, it is possible to provide a polyester water-repellent woven fabric that has a stretch property that is comfortable to wear and that has high density and excellent waterproofness, and is generally used in sports clothing, general outdoor clothing, women's outerwear, lining. Can be used widely in general and clothing applications such as underwear.

Claims

The scope of the claims

[1] Use one ultrafine fiber yarn with a single fiber fineness of 0 · 01 decitex or more and 1.1 decitex or less for one of the warp and horizontal yarns, and at least one component of the other one is polytrimethylene Uses multifilament yarns of composite fibers in which a polyester-based polymer consisting mainly of terephthalate is bonded to the side-by-side type or eccentric core-sheath type along the fiber length direction. A polyester fabric characterized in that the sum of the cover factors for finishing is 1500 to 2500.

[2] The polyester fabric according to claim 1, wherein the initial water repellency is 4 or more.

[3] The polyester fabric according to claim 1 or 2, wherein a stretch rate of the fabric in the direction using the composite fiber multifilament yarn is 10% or more.

Tell textile

[4] The polyester fabric according to any one of claims 1 to 3, which has a water pressure resistance of 300 mm or more.

[5] The polyester fabric according to any one of claims 1 to 4, wherein the polyester fabric is used for an application selected from sports clothing, outdoor clothing, women's outerwear, lining, and underwear.