KR20060089225A - Stretchable composite fabric and clothing product therefrom - Google Patents

Abstract

A stretchable composite fabric which is a woven or knitted fabric comprising composite yarns (A) formed from stretchable yarns (1) having a self elongation upon water absorption of 5 % or more and an elongation at break of 200 % or more and non-stretchable yarns (2) having a self elongation upon water absorption less than 5 % and yarns (B) containing stretchable yarns (3) having a self elongation upon water absorption of less than 5 % and an elongation at break of 30 % or more, wherein a sample taken from the fabric exhibits a ratio of L1 to L2 (L1/L2) of 0.9 or less, wherein L1 and L2 represent average lengths of yarns (1) and yarns (2) in the sample, respectively, and yarns (1) undergo self-elongation when they absorb water and undergo shrinkage when they are dried. The stretchable composite fabric can be suitably used for sport and inner wear clothes.

Description

Elastic composite fabrics and their apparel products {STRETCHABLE COMPOSITE FABRIC AND CLOTHING PRODUCT THEREFROM}

The present invention relates to a stretch composite fabric and its garments. More specifically, the present invention is directed to a nonwoven fabric comprising a superabsorbent self-extending and stretchable yarn (1), a low-absorbing self-extending and non-stretchable fiber (2), and a low-absorbing self-extending and stretchable yarn (3). The present invention relates to a stretchable composite fabric and its garment product, when wetted by water, which cause irregularities on the surface of the fabric due to the difference in absorption magnetic elongation of the constituent yarns and are lost by drying.

Conventionally, many proposals using the knitted fabric which has elasticity for uses, such as sportswear and innerwear, are made. (For example, patent document 1)

However, when elastic knitted fabrics including synthetic fibers and / or natural fibers are used in the medical use of sportswear and innerwear, sweating from the skin causes the medical to adhere to the skin and cause discomfort. In order to solve such a problem, for example, Patent Document 2 proposes a woven fabric having a double structure having an uneven surface on the back surface of the woven fabric. However, in such fabrics, since irregularities are formed on the surface of the fabric, the garment made of the fabric has an unnecessary irregular shape on the surface of the garment even in a normal state (not wetted by sweating or the like). There was a problem in its appearance.

Moreover, for example, in patent documents 3 and 4, the cloth which can self-adjust breathability is proposed. In a garment formed using this fabric, when the humidity in the garment rises in a sweating state, the breathability of the fabric constituting the garment increases, releasing moisture remaining in the garment out of the garment, and sweating stops, When the clothes are dried and the humidity in the clothes decreases, the air permeability of the fabric constituting the clothes decreases, the heat retention of the clothes increases, and the wearing feeling of the clothes can be always comfortably maintained.

Moreover, in patent document 5, what contains an absorbent in the said double structure knitted fabric is proposed.

However, in the conventional medical knitted fabric, the problem of unpleasant feeling of clothing caused by sweating has not been sufficiently solved.

[Patent Document 1] Japanese Unexamined Patent Publication No. Hei 3-174043

[Patent Document 2] Japanese Unexamined Patent Publication No. 2003-147657

[Patent Document 3] Japanese Unexamined Patent Publication No. Hei 3-213518

[Patent Document 4] Japanese Patent Application Laid-Open No. 10-77544

[Patent Document 5] Japanese Unexamined Patent Publication No. 2002-266249

Disclosure of the Invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a stretchable composite fabric comprising a thread that absorbs by wetting by water, expands itself, contracts by drying, and has elasticity as a whole, and a garment product thereof.

The above object is achieved by the stretchable composite fabric of the present invention and its garment product.

The stretchable composite fabric of the present invention is a knitted fabric comprising at least three yarns (1), (2), and (3) different from each other,

Thread 1 is a superabsorbent magnetic stretchable and stretchable yarn having a relatively high absorption magnetic elongation and a stretch elongation of 200% or more and having elasticity,

Yarn 2 is a low absorption magnetic stretchable and non-stretchable yarn that has a relatively low absorption magnetic elongation rate but does not substantially exhibit elasticity,

The yarn 3 is made of a fiber having a relatively low absorption magnetic elongation and elasticity, and has a low absorption self-expansion / elasticity yarn having a cut elongation of 30% or more,

Each of the yarns (1), (2), and (3) is wound around a rim of 1.125 m, with a load of 0.88 mN / dtex, while forming a skew of 10 windings, and the thread It is removed from the frame and left for 24 hours in an air environment with a temperature of 20 ° C. and a relative humidity of 65% to adjust the condition. A load of 0.0088 mN / dtex is applied to the drying tuft chamber to measure the drying thread length (Ld, mm). After immersing this skein thread in water for 20 minutes at a water temperature of 20 ° C., it was lifted up in water, and a load of 0.0088 mN / dtex was applied to this wet skein thread to measure its wet thread length (Lw, mm). :

Yarn Absorption Magnetic Elongation (%) = (Lw-Ld) / (Ld) × 100

When given to the measurement to calculate the self elongation rate of each thread by

The yarn 1 has an absorbent magnetic elongation of at least 5%, the yarns 2 and 3 have an absorbent magnetic elongation of less than 5%,

Absorbing self-extension / elastic composite yarn (A) is formed from the yarns (1) and (2), and the yarn (3) is a non-absorbing self-extension / stretch yarn (B) which does not substantially exhibit self-extension. ) Are included,

The woven fabric was dimensionally stabilized in an atmosphere having a temperature of 20 ° C. and a relative humidity of 65%, and from this dimensional stabilized woven fabric, a test piece of the composite yarn A having a length of 30 cm was taken, and this test piece When the average lengths L1 and L2 under the load of 0.0088 mN / dtex of the yarns 1 and 2 in the above were measured, the value of the ratio L1 / L2 was 0.9 or less.

In the composite fabric of the present invention, the stretchable composite fabric has a woven tissue, and in the warp group and / or weft group within the woven tissue, the absorbent self-extending yarn (A) and the non-absorbing self-extending. Elastic yarns (B) are preferably arranged alternately with respect to one or more.

In the composite fabric of the present invention, the composite yarn (A) and the yarn (B) constitute only one yarn group among the warp group and the weft group in the fabric tissue, and the other yarn group includes the composite yarn (A). And it is preferable that it is comprised by the 1 or more types of thread different from said thread (B).

In the composite fabric of the present invention, the yarns different from the yarns (A) and (B) are composed of a plurality of single fibers having a flat cross-sectional shape and a plurality of single fibers having a fineness of 1.5 dtex or less. It is preferable that it is selected from the thread which consists of.

In the composite fabric of the present invention, the composite fabric has a multilayer structure of two or more layers, and at least one layer of the multilayer structure contains the composite yarn (A) at a content of 20% by mass or more of the total mass thereof, and the multilayer It is preferable that the other at least 1 layer of a structure contains the said thread (B) in the content rate of 20 mass% or more of the total mass.

In the composite fabric of the present invention, the fibers constituting the superabsorbent magnetic stretchable and stretchable yarn 1 included in the composite yarn A are made of a hard segment comprising a polybutylene terephthalate block, and polyoxyethylene It is preferred to be selected from polyetherester fibers formed from polyetherester elastomers comprising soft segments consisting of glycol blocks.

In the composite fabric of the present invention, it is preferable that the fibers constituting the low-absorption self-extension and non-stretchable yarn 2 contained in the composite yarn (A) are selected from polyester fibers.

In the composite fabric of the present invention, the short fiber fineness of the fibers constituting the yarn 2 is preferably 1.5 dtex or less.

In the composite fabric of the present invention, the non-absorbing self-extending yarn stretchable yarn (B) may be a composite yarn including other yarns 4 in addition to the low-absorbing self-extending yarn elastic yarn 3. When the yarn 3 has an elongation at break of 200% or more, and the yarn 4 is made of fibers which are substantially free from absorbent magnetic extensibility and elasticity, the same measuring method as that of the composite yarn A When measured by, it is preferable that ratio L3 / L4 with respect to the average length L4 of the yarn 4 of the average length L3 of the yarn 3 in the said composite yarn is 0.9 or less.

In the composite fabric of the present invention, the fibers constituting the yarn 3 having the elongation at break of 200% or more include a hard segment composed of a polybutylene terephthalate block and a soft segment composed of a polytetramethylene oxide glycol block. It is preferable that it is chosen from the polyetherester fiber formed from the polyetherester elastomer to be mentioned.

In the composite fabric of the present invention, the fibers constituting the yarn 4 are preferably selected from polyester fibers.

In the composite fabric of the present invention, a plurality of samples having a dimension of 5 cm x 2 cm are taken from the composite fabric, and these are left to stand in an air having a temperature of 20 ° C. and a relative humidity of 65% for 24 hours to prepare a plurality of dry samples. Separately, a plurality of samples having a size of 5 cm × 2 cm were taken from the composite fabric, and these were immersed in water at a temperature of 20 ° C. for 5 minutes, lifted up in water, sandwiched between a pair of filter papers, Pressure was applied for 1 minute to remove water present between the fibers in the sample, to prepare a plurality of wet samples, and to measure the average maximum thickness Dw of the wet sample and the average maximum thickness Dd of the dry sample,

Unevenness change rate (%) = ((Dw-Dd) / (Dd)] × 100

When the rate of change of unevenness is measured, it is preferable that the rate of change of unevenness is 10% or more.

In the composite fabric of the present invention, it is preferable that the composite fabric has a fabric structure and the cover factor of the fabric is 2500 or more.

In the composite fabric of the present invention, it is preferable that water repellent is applied to at least one surface of the composite fabric.

In the composite fabric of the present invention, 50 ml of the composite fabric is provided for measurement of air permeability according to JIS L 1096-1998, 6.27, A method (Plasyl mold method) in air having a temperature of 20 ° C. and a relative humidity of 65%. It is preferable to exhibit the ventilation of less than / cm <2> * s.

In the composite fabric of the present invention, when the composite fabric is subjected to water pressure measurement by JIS L 1092-1998, 4. (1.1) (low hydrostatic pressure method) in air having a temperature of 20 ° C. and a relative humidity of 65%. It is preferable to represent the water pressure of 100 mmH ₂ O or more.

The medical material of the present invention includes the above-mentioned stretchable composite fabric of the present invention, and the uneven shape is expressed on at least one surface thereof by wet with water.

The garment of the present invention is formed of at least one portion selected from the armpit, side, chest, back and shoulder of the garment by the above-mentioned garment material of the present invention.

The garment of the present invention is preferably selected from the garment for underwear.

The garment of the present invention is preferably selected from sports medicine.

1 is a private facility diagram showing the shape at the time of drying of an example of the stretchable composite fabric of the present invention,

FIG. 2 is a facility name diagram showing the shape of the stretchable composite fabric of FIG.

3 is a cross-sectional explanatory view of a shape during drying of another example of the stretchable composite fabric of the present invention,

4 is an explanatory cross-sectional view of the shape of the stretchable composite fabric of FIG. 3 upon absorption and wetting.

5 is an explanatory front view showing an example of a garment including the elastic composite fabric of the present invention,

6 is a front explanatory view showing another example of a garment including the elastic composite fabric of the present invention,

7 is a front explanatory view showing another example of a garment including the elastic composite fabric of the present invention,

8 is a rear explanatory diagram showing another example of a garment including the stretchable composite fabric of the present invention,

9 is a front explanatory view showing another example of a garment including the elastic composite fabric of the present invention,

10 is a fabric texture diagram of an example of the stretchable composite fabric of the present invention having a weft two-layer fabric texture,

11 is a fabric texture diagram of another example of the stretch composite fabric having a weft two-layer fabric texture of the present invention.

To practice the invention  Best form for

The stretchable composite fabric of the present invention is a woven fabric comprising at least three yarns (1), (2) and (3) different in absorbent self-extension and / or stretchability.

The yarn 1 is made of a fiber having a relatively high absorption magnetic elongation and elasticity, and is a superabsorbent magnetic elongation / elastic yarn having a cut elongation of 200% or more,

Yarn 2 is a low-absorption self-extension and non-stretchable yarn made of a fiber having a relatively low absorption magnetic elongation, but which does not substantially exhibit elasticity,

The yarn 3 is made of a fiber having a relatively low absorption magnetic elongation and elasticity, and is a low absorption self-extension / elastic yarn having a cut elongation of 30% or more.

Absorbing magnetic extensibility of yarns (1), (2) and (3) is measured as follows. That is, each of the yarns (1), (2) and (3) is wound around a rim of 1.125 m with a load of 0.88 mN / dtex around a rim of 1.125 m to form a coil of 10 rolls, and the thread It is removed from the frame and left to stand in an air environment with a temperature of 20 ° C. and a relative humidity of 65% for 24 hours to adjust the condition. A load of 0.0088 mN / dtex is applied to the drying tuft chamber to measure the length of the drying thread (Ld, mm). After immersing this skein thread in water for 20 minutes at a water temperature of 20 ° C., it was lifted up in water, and a load of 0.0088 mN / dtex was applied to this wet skein thread to measure its wet thread length (Lw, mm).

  Yarn Absorption Magnetic Elongation (%) = (Lw-Ld) / (Ld) × 100

It is measured and provided to a measurement test for calculating the magnetic elongation of each thread, wherein the yarn 1 has an absorption magnetic elongation of 5% or more, and the yarns 2 and 3 have an absorption magnetic elongation of less than 5%. Have

In the stretchable composite fabric of the present invention, an absorbent self-extension / elastic composite yarn (A) is formed from the yarns (1) and (2), and the yarns (3) have a ratio that does not substantially exhibit self-extension. It is contained in the absorption self-extension, elastic thread (B),

The woven fabric was dimensionally stabilized in an atmosphere having a temperature of 20 ° C. and a relative humidity of 65%, and a test piece of the composite yarn A having a length of 30 cm was taken from the dimensional stabilized woven fabric, and in this test piece When the average lengths L1 and L2 under the load of 0.0088 mN / dtex of the thread 1 and the thread 2 were measured, the value of the ratio L1 / L2 should be 0.9 or less.

The composite fabric of the present invention having the above-described structure exhibits elasticity in at least one direction of the weft direction and the warp direction, or at least one direction of the course direction and the well direction, and when wetted by water, at least thread 1 It absorbs and stretches itself, changes the shape appearance of the fabric, and when it is dried, at least the yarns 1 absorbed and stretched absorb and self-shrink to recover the shape appearance of the fabric.

The yarn 1 used in the present invention is composed of a fiber having high absorption magnetic extensibility and elasticity, and the absorption magnetic elongation of yarn 1 is preferably 5% or more, preferably 6% or more, and more preferably 8 It is -30%. The fiber which forms such yarn 1 is polyether ester fiber which consists of polyether ester elastomer which makes polybutylene terephthalate the hard segment, and makes the polyoxyethylene glycol the soft segment, for example, poly Resins composed of at least one of metal salts of acrylic acid, polyacrylic acid and copolymers thereof, polymethacrylic acid and copolymers thereof, polyvinyl alcohol and copolymers thereof, polyacrylamide and copolymers thereof, and polyoxyethylene polymers, The polyester mixed resin fiber which exists, the polyester fiber in which the 5-sulfoisophthalic acid component is copolymerized, etc. are illustrated. Especially, since the polyetherester fiber which consists of polyetherester elastomer which contains polybutylene terephthalate as a hard segment and polyoxyethylene glycol as a soft segment has not only absorption self-extension but also high elongation elasticity, It is preferable because it can be set as the structure which comprises elastic composite fiber using elasticity.

It is preferable that the polybutylene terephthalate which comprises the hard segment of the said polyether ester elastomer contains at least 70 mol% or more of butylene terephthalate units. The content rate of butylene terephthalate is more preferably 80 mol% or more, and still more preferably 90 mol% or more. The acid component of the butylene terephthalate structure is terephthalic acid as a main component, but a small amount of other dicarboxylic acid components may be copolymerized, and the glycol component may be tetramethylene glycol as a main component, but other glycol components may be added as a copolymerization component.

As said dicarboxylic acid other than terephthalic acid, naphthalenedicarboxylic acid, isophthalic acid, diphenyl dicarboxylic acid, diphenyloxyethane dicarboxylic acid, (beta) -hydroxyethoxy benzoic acid, p-oxy, for example. Aromatic and aliphatic dicarboxylic acid components, such as benzoic acid, adipic acid, sebacic acid, and 1, 4- cyclohexanedicarboxylic acid, are mentioned. Moreover, you may use trifunctional or more than trifunctional polycarboxylic acid, such as trimellitic acid and pyromellitic acid, as a copolymerization component in the range which does not substantially impair the achievement of the objective of this invention.

Moreover, as said diol component other than tetramethylene glycol, aliphatic, alicyclic, and aromatic diol compounds, such as trimethylene glycol, ethylene glycol, cyclohexane-1, 4- dimethanol, and neopentyl glycol, are mentioned, for example. have. Furthermore, trifunctional or higher polyols such as glycerin, trimethylolpropane and pentaerythritol may be used as copolymerization components within the range that the object of the present invention is not substantially impaired.

On the other hand, it is preferable that the polyoxyethylene glycol which comprises the soft segment of a polyether ester elastomer contains at least 70 mol% or more of oxyethylene glycol units. The content of oxyethylene glycol is more preferably 80 mol% or more, and still more preferably 90 mol% or more. In addition to oxyethylene glycol, propylene glycol, tetramethylene glycol, glycerin, etc. may be copolymerized in the range which does not substantially impair the objective of this invention.

It is preferable that the number average molecular weight of the said polyoxyethylene glycol exists in the range of 400-8000, Especially, 1000-6000 are especially preferable.

The polyether ester elastomer is, for example, a bis (ω-hydroxybutyl) terephthalate and / or by transesterification of a raw material containing dimethyl terephthalate, tetramethylene glycol and polyoxyethylene glycol in the presence of a transesterification catalyst It can manufacture by forming an oligomer and providing it to melt polycondensation under high temperature pressure reduction in presence of a polycondensation catalyst and a stabilizer after that.

The ratio of hard segments / soft segments is preferably 30/70 to 70/30 based on weight.

In the said polyether ester elastomer, when the organic sulfonic acid metal salt, for example, 5-sodium sulfoisophthalic acid, is contained as a copolymerization component, the fiber which has the further excellent absorption self-extension performance is obtained.

The polyether ester fiber melts and extrudes the polyether ester elastomer from a normal molten spinneret, is pulled at a pulling speed of 300 to 1200 m / min (preferably 400 to 980 m / min), and 1.0 to 1.2 of the pulling speed. It can manufacture by winding by the winding draft ratio of the ship (preferably 1.0-1.1 times).

Although there are no particular limitations on the total fineness, single fineness, and filament number of the absorbing magnetic elongation yarn 1, the total fineness of 30 to 300 dtex, the single fineness of 0.6 to 100 dtex, and the number of filaments of 1 to 10 It is desirable to be in the range.

The fibers constituting the low-absorption self-extensible non-stretchable yarn (2) constituting the composite yarn (A) together with the yarn (1) include natural fibers such as cotton and hemp, cellulose-based chemical fibers such as rayon and acetate, and polyethylene. Synthetic fibers, such as polyester, polyamide, polyacrylonitrile, and polypropylene represented by terephthalate and polytrimethylene terephthalate, are illustrated. Especially, normal polyester fiber is used preferably. In the low thread 2, single thread fineness is 1.5 dtex or less (more preferably 1.0 dtex or less, particularly preferably 0.1 to 0.8 dtex) and the number of single yarns is 30 or more (more preferably 50 to 300) ), The absorbent of the composite yarn A increases, so that the composite yarn A easily absorbs and elongates. As a result, the composite fabric of the present invention exhibits changes in appearance and shape of the fabric due to absorption and wetting. It becomes easy to do it.

In the composite thread A, the yarns 1 and 2 forming the same must have the following four-foot difference. That is, as described above, the knitted fabric comprising the composite yarn A consisting of the yarn 1 and yarn 2 is dimensionally stabilized in an atmosphere having a temperature of 20 ° C. and a relative humidity of 65%, and this dimension From the stabilized woven fabric, a test piece of the composite yarn A having a length of 30 cm was taken, and the average length L1 under the load of 0.0088 mN / dtex of the yarn 1 and the yarn 2 in this test piece and When measuring L2, the value of the ratio L1 / L2 should be 0.9 or less.

The value of preferable ratio L1 / L2 is 0.9-0.2, and it is further more preferable that it is 0.8-0.3. When ratio L1 / L2 value is larger than 0.9, the elasticity of the composite yarn A obtained will become inadequate. However, when the value of ratio L1 / L2 becomes smaller than 0.3, the change of the shape and appearance of the yarn at the time of the absorption wet of the composite yarn A obtained can become small.

Although there is no restriction | limiting in particular in the manufacturing method of the composite yarn (A), For example, the yarn 1 is stretched (drafted) to a desired elongation rate (for example, 1.1 to 5.0 times), and it is around the yarn 1 The thread 2 is disposed in a core-shell structure and plyed together so that thread 1 forms a core portion, and thread 2 forms a shell portion, thereby forming a composite thread of a core-shell structure, as desired. After soft twisting is performed, when the yarn thread 1 is elastically shrunk by releasing the stretching to the yarn thread 1, the yarn thread of the yarn thread 2 becomes longer than the yarn thread of the yarn thread 1, The fiber forms the shell part comprised of the curved fiber around the yarn 1, and the obtained composite yarn has the appearance of a bulk yarn shape. The thread 1 may be a multifilament yarn or a short fiber spun yarn, preferably a multifilament yarn. Although the thread 2 may be a multifilament thread or a short fiber spinning thread, it is preferable that it is a multifilament thread, and this multifilament thread 2 is bulk-processed (for example, a flammable process may be performed).

There is no particular limitation on the real number of the thread 1 and the thread 2 in the composite thread A, but the ratio of the error is preferably 1: 1, and the weight ratio to the thread 2 of the thread 1 is Is preferably from 10:90 to 70:30, and more preferably from 15:85 to 50:50.

It is preferable that the elongation rate of the yarn 1 in the said method at the time of manufacturing a composite yarn (A) is 1.1 times or more, and it is more preferable that it is 1.2-5 times.

In addition, although the elongation process of the extended yarn 1 and yarn 2 may be a trimming method, any of the interlaced air jet fusion method, the taslan air jet fusion method, the covering bundling method, and the composite combustive crimping method may be used. Although it is preferable to use a covering plying method which winds the yarn 2 around the elongated yarn 1, this yields a composite yarn having a clear core-shell structure.

The yarns (B) used in the present invention include the low-absorption self-expandable stretch yarns (3) as indispensable components. The yarn 3 is made of fibers having low absorption self-extension and elasticity, and has a cut elongation of 30% or more.

In the composite fabric of the present invention, the yarn 3 used in the yarn B is a yarn of relatively low absorption magnetic extensibility of 5% or less, elastic fibers and having a cut elongation of 30% or more. The fibers constituting the low-absorption self-expandable stretch yarn (3) include stretchable polyetherester fibers, stretchable polyurethane fibers, stretchable side-by-side conjugate polyester fibers, stretchable polytrimethylene terephthalate fibers, and combustibles. You can choose from crimping thread. As said stretchable polyether ester fiber, the polyether ester elastomer fiber which contains polybutylene terephthalate as a hard segment, and contains polytetramethylene oxide glycol as a soft segment (brand: Lexese, Teijin Fiber Co., Ltd. product). Preference is given to using. In the manufacturing method of the said polyether ester fiber used as yarn (1), this elastomer fiber may use polytetramethylene oxide glycol instead of polyoxyethylene glycol as a component which comprises a soft segment. In order to impart low breathability and / or high water repellency to the target fabric, the short fiber fineness of the yarn 3 is preferably 1.5 dtex or less, more preferably 1.0 dtex or less, and still more preferably 0.1 to 0.8 dtex. The number of fibers (filaments) per thread is preferably 30 or more, more preferably 50 to 300.

The thread B may be composed of only the thread 3, or may be a composite thread including the thread 3 and the thread 4 of different types. When thread yarn B is a composite yarn, yarn 4 may be a yarn made of low-absorption self-extension and non-stretch fibers having an absorbent magnetic elongation of 5% or less and exhibiting non-elasticity. It is preferable that the cutting elongation rate of 4) is 30% or more.

Further, when the same test as the test method applied to the composite yarn (A) was applied to the yarns (3) and (4), the average length L3 of the yarns (4) of the yarns (3) in the composite yarns (B) It is preferable that ratio L3 / L4 with respect to average length L4 is 0.9 or less, It is more preferable that it is 0.9-0.2, It is further more preferable that it is 0.8-0.5. The low-absorption self-extending and non-stretchable yarns used as yarns (4) for yarns (B) are, like the fibers constituting yarns (2), non-stretchable polyester fibers, polyamide fibers, polyacrylic fibers, polypropylene One or more types, such as a fiber, a cellulose chemical fiber, and a natural fiber, can be used.

The coarse yarn of the yarn 3 and the yarn 4 in the composite yarn B is implemented so that the composite yarn B obtained can exhibit elasticity, for example, the yarn in the manufacture of the composite yarn A What is necessary is just to use the method similar to the jointing method of 1) and thread 2, For example, arrange | positioning the thread 4 to arrange | position the shell part around the core part in the state which extended the thread 3 After the desired yarn treatment (for example, the interlacing air jet treatment, the covering plywood method, the composite combustion method, etc.), the elongation of the yarn 3 may be restored and shrunk. By this plywood method, the yarn 3 is arranged in the core portion, and the fiber of yarn 4 is bent outward therefrom to obtain a bulk stretching yarn B that swells out.

The total fineness of the composite yarn (B) is not particularly limited, and may be appropriately set to, for example, 30 to 300 dtex depending on the structure of the desired fiber fabric. Although there is no particular limitation on the short fiber fineness and the number of fibers (filaments) per thread constituting the yarn 4, in order to impart low air permeability and / or high water repellency to the target fabric, the single fiber fineness of the yarn 4 is It is preferable that it is 1.5 dtex or less, More preferably, it is 1.0 dtex or less, More preferably, it is 0.1-0.8 dtex, It is preferable that the number of fibers (filaments) per thread is 30 or more, It is further more preferable that it is 50-300. . There is no restriction | limiting in the cross-sectional shape of the fiber which comprises the yarns 3 and 4, It may have a circular cross section or a mold release cross section.

The stretchable composite fabric of the present invention may have a woven fabric or a knitted fabric.

When the stretchable composite fabric of the present invention has a woven fabric, the absorbent stretchable and stretchable yarn (A) and the non-absorbable stretchable and stretchable yarn in the warp group and / or weft group in the fabric structure. (B) may be arranged alternately with respect to one or more (preferably 2-800 pieces, more preferably 5-500 pieces, still more preferably 10-100 pieces).

In the case where the stretchable composite fabric of the present invention has a knit tissue, in the cos sand group and / or well yarn group in the knit tissue, the absorbent stretchable stretch yarn (A) and the non-absorbable stretch magnetic stretch / elasticity The thread B may be alternately arranged with respect to one or more.

In the stretchable composite fabric of the present invention, the alternating arrangement of the composite yarns (A) and (B) may be regular or irregular, but it is preferable that they are regular.

In the elastic composite fabric of the present invention, when it has a woven tissue, the composite yarn (A) and yarn (B) constitute only one yarn group among the warp group and the weft group in the fabric tissue, and the other yarn group is the composite yarn. You may be comprised from 1 or more types of thread different from thread (A) and thread (B).

Similarly, in the elastic composite fabric of the present invention, when it has a knitted tissue, the composite yarn (A) and yarn (B) constitute only one yarn group among the cossa group and the well yarn group in the knit tissue, and the other yarn group May be composed of one or more types of yarns different from the composite yarns (A) and (B).

The yarns different from the composite yarns (A) and (B) are preferably selected from yarns made of a plurality of single fibers having a flat cross-sectional shape, and yarns made of a plurality of single fibers having a fineness of 1.5 dtex or less. . These different yarns can be easily bent. It is preferable that the long diameter / short diameter ratio of the flat cross section of such a flexible fiber is 1.2 or more, More preferably, it is 2-5. Further, the fineness of the fineness fibers is preferably 1.5 dtex or less, and more preferably 0.1 to 1.3 dtex. There are no particular limitations on the fibers constituting the different yarns, as long as the above requirements are satisfied, but are represented by natural fibers such as cotton and hemp, cellulose-based chemical fibers such as rayon and acetate, and furthermore, represented by polyethylene terephthalate or polytrimethylene terephthalate. Synthetic fibers, such as polyester, polyamide, polyacrylonitrile, and polypropylene, etc. can be used.

FIG. 1 is a drawing of the construction facility when the dry composite fabric of the present invention is an example of dry construction, and FIG. 2 is a drawing of the construction facility of the fabric of FIG. 1 when wet. 1 and 2, in the composite fabric 1, the weft consists of a region 2 composed of a plurality of composite yarns A and a region 3 composed of a plurality of yarns B, and a region ( 2) and area | region 3 are formed in the alternating order. In FIG. 1 in which the warp yarns of the region 2 and the region 3 are formed by the same nonabsorbing self-extending yarn, the thickness of the region 2 of the cloth 1 in a dry state is d1.

When the composite fabric 1 of FIG. 1 is wetted with water, as shown in FIG. 2, the region 3 in which yarns B are formed as weft yarns is a non-absorbing magnetic extensibility in both blades and weft yarns. The dimension and shape (appearance) of 3) do not substantially change. However, in the area | region 2 containing the composite yarn A as a weft yarn, the yarn 1 in the composite yarn A is absorbed, self-extended, and enclosed with yarn 1 by wet wetting. Since the thread 2 is wound or spirally wound around the thread 1, the thread 2 is apparently extended in the longitudinal direction of the composite thread A together with the absorbing self-extended thread 1. For this reason, the dimension of the weft direction of the area | region 2 increases, and it curves between the area | regions 2, and forms an uneven | corrugated shape. At this time, the height difference (thickness of the area 2) d2 between the highest part 4 and the lowest part 5 of the area | region 2 becomes larger than d1. The uneven | corrugated shape of the area | region 2 at the time of water-wetting shown in FIG. 2 is lost by drying, and it becomes a flat state as shown in FIG.

In the stretchable composite fabric of the present invention, the fabric structure and the number of layers are not particularly limited. For example, weaving tissues such as plain weave, twill weave, and satin weave are used, but are not limited thereto. The number of layers may also be a single layer, or may be a multilayer of two or more layers.

In the stretchable composite fabric of the present invention, the thread length of the composite yarn (A) in this fabric in an atmosphere having a temperature of 20 ° C. and a humidity of 65% RH is represented by (LA), and the yarn length of the yarn (B) is ( LB), the smaller the difference between the actual lengths of LA and LB is, the better the ratio LA / LB is in the range of 0.9 to 1.1. If LA / LB is smaller than 0.9 or larger than 1.1, irregularities may appear on the surface of the fabric even when drying is not performed, resulting in damage to the appearance.

Here, the measurement of the real length shall be performed by the following method. First, the sample of the fabric is allowed to stand for 24 hours in an atmosphere having a temperature of 20 ° C. and a humidity of 65% RH, and then 30 cm × 30 cm small pieces are cut out from this sample (n number = 5). Subsequently, the composite yarn A and the yarn B are taken out one by one from each piece, and the yarn length LB of the elastic composite yarn A and the yarn length LB of the non-magnetic stretchable and stretch yarn B are obtained. Mm) is measured. At that time, it is measured under a load of 0.0088 mN / dtex (1 mg / de). And (average value of real length LA) / (average value of real length LB) is LA / LB. Here, the composite yarn A and the yarn B taken out from the small piece need to extend in the same direction in the sample. For example, when taking out the composite yarn A from the warp (weft) of a woven fabric, it is necessary to take out the other yarn B also from the warp (weft).

As described above, as a method for bringing the ratio LA / LB into the range of 0.9 to 1.1, for example, the yarn B is a composite yarn (B) including a nonabsorbing self-extending and non-stretch yarn 4. In this case, the following method can be used, for example. That is, when manufacturing the composite yarn B from the stretchable yarn 3 and the non-stretched yarn 4, the stretching ratio in the manufacturing process of the stretchable yarn 3 is to the specific water shrinkage rate of the composite yarn B obtained. affect. For this reason, the elastic yarn 3 has such that the ratio α / β of the non-aqueous shrinkage ratio α of the composite yarn A and the non-aqueous shrinkage ratio β of the composite yarn B including the yarn 3 is in the range of 0.9 to 1.1. The draw ratio in the manufacturing process is adjusted. In this case, when the composite fabric is subjected to non-aqueous treatment such as dyeing processing, both the composite yarn A and the composite yarn B are softly contracted to the same extent, so that the four-foot micro-difference becomes smaller. If the four-foot difference between the composite yarns (A) and (B) in the composite fabric is increased by dyeing or the like, if the flammable set treatment is performed while extending the width of the composite fabric to within 1.4 times, the composite in the composite fabric of the treatment liquid The average length ratio LA / LB of yarns A and B can be adjusted within the range of 0.9 to 1.1.

The composite fabric of the present invention is subjected to a wet heat treatment of 60 ° C. or higher (more preferably 65 to 98 ° C.), followed by dyeing as necessary, and its wet heat rise (when dyeing is performed, dyeing rises. It is preferable to perform heat setting while performing a width-proofing rate of 1.4 times or less (more preferably 1.0 to 1.3 times) with respect to the fabric cloth. When heat is set at a width-proofing rate of more than 1.4 times, the absorption magnetic elongation rate of the yarn 1 contained in the composite yarn A is reduced, and sufficient unevenness change by wet-drying may not be obtained.

In the stretchable composite fabric of the present invention, when wetted, the composite yarn A is absorbed and elongated so that the yarn length is long, while the yarn length of the nonmagnetic stretchable yarn B adjacent thereto is not changed. As a result, only the stretched composite yarn A becomes a curved form in the fabric, and irregularities appear on the surface of the fabric. When the fabric is dried, the thread length of the composite yarn A is reversibly shortened as it is, and the unevenness of the surface of the fabric is lost.

At the time of wetting, as a real length difference of the said composite yarn A and the yarn B, the real length of the composite yarn A when wetting is LAw, and the real length of the yarn B is LBw. In this regard, the ratio LAw / LBw is preferably 1.05 or more (preferably 1.1 to 1.3). When the ratio LAw / LBw at the time of wetting is smaller than 1.05, the unevenness | corrugation on the fabric surface at the time of sweating is not enough, and a favorable stickiness inhibitory effect may not be obtained. As uneven | corrugated change rate at this time, it is preferable that it is 10% or more, It is more preferable that it is 100% or more, More preferably, it is further more preferable that it is 200% or more and 1000% or less.

The uneven | corrugated change of the surface of the cloth which arises from the wet and dry by water of the stretchable composite fabric of this invention can be measured by the following uneven | corrugated change rate.

A plurality of samples having a size of 5 cm x 2 cm are taken from the composite fabric and left for 24 hours in an air at a temperature of 20 ° C. and a relative humidity of 65% to prepare a plurality of dry samples, and separately from the composite fabric. A plurality of samples having a size of 5 cm × 2 cm are taken, these are immersed in water at a temperature of 20 ° C. for 5 minutes, lifted up in water, sandwiched between a pair of filter papers, and a pressure of 490 N / m 2 is applied for 1 minute. Water existing between the fibers was removed to prepare a plurality of wet samples, and the average maximum thickness Dw of the wet sample and the average maximum thickness Dd of the dry sample were measured, and the following equation:

Unevenness rate of change (%) = [(Dw-Dd) / (Dd)] × 100

The uneven change rate is calculated by.

The average maximum thicknesses Dd and Dw of a dry sample and a wet sample provide a dry sample and a wet sample to an ultra-high precision laser displacement meter (Model: LC-2400, manufactured by Keyence), and measure the maximum thickness of each sample. This operation is repeated for five (n = 5) samples to calculate the average maximum thicknesses Dw and Dd.

When the elastic composite fabric of the present invention is wetted by sweating or the like, the absorbent magnetic elongation of yarns 1 causes irregularities in the fabric, the contact area between the fabric and the skin is reduced, and the discomfort caused by the wetting of the fabric is reduced, It can also promote drying of the fabric.

In the elastic composite fabric of the present invention, in the direction in which the composite yarns (A) and (B) are disposed, the elastic elongation is preferably 6% or more, more preferably 8 to 30%.

In addition, even if the elastic composite fabric of the present invention is subjected to various treatments with water-repellent, brushed, UV-shielded or antibacterial agent, deodorant, insect repellent, photoluminescent agent, retroreflective agent, negative ion generating agent, etc. do.

In the stretchable composite fabric of the present invention, the composite fabric has a multilayer structure of two or more layers, and at least one layer of the multilayer structure contains the composite yarn (A) at a content of 20% by mass or more of the total mass thereof, and the multilayer The other at least 1 layer of a structure may contain the said thread (B) in 20 mass% or more of content of the total mass.

In the two-layer structure composite fabric of the present invention, there is no particular limitation on the form of the straight piece of the two-layer structure. For example, in the fabric, a two-layered fabric commonly referred to as warp double tissue, weft double tissue, double tissue, overlapping tissue, etc. is used. -Combinations of plain tissue, satin tissue-twill and the like are preferably used. In the knitted fabric, a half tissue, a half base tissue, a satin tissue, or the like using a two-body or three-body body is used. Moreover, although the thing which heat-bonded two pieces of single layer knit fabrics, and the stitched thing may be sufficient, the soft touch of the two-layer structure knit fabric knitted by the said two-layer structure is not impaired, and it is preferable.

In the two-layer structure composite fabric of the present invention, a two-layer structure knitted fabric is composed of a composite yarn (A) and a yarn (B), and a composite yarn (A) is mainly disposed on one layer, and a yarn (B) mainly on the other layer. ) Is arranged, when the layer on which the composite yarn A is arranged is mainly used on the skin side, and the layer on which the yarn yarn B is mainly arranged is the outside air side. Unevenness is expressed. On the other hand, on the surface of the knitted fabric on the outside air side, unevenness does not appear so much even when rain water touches, and the appearance is not damaged. Thus, as a method of arranging the composite yarn A mainly on one floor and mainly the yarn B on the other floor, for example, weft double tissue of the organization chart shown in FIG. 10 to be described later in detail is employed. In that case, the composite yarn A and the yarn B may be arranged in one alternation as the weft yarn, and the nonabsorbing magnetic elongation yarn may be arranged and weaved as the warp yarn. At that time, as a non-absorbing self-expandable yarn used as warp, short fiber fineness is 1.5 dtex or less (more preferably 1.3 dtex or less, particularly preferably 0.1 to 1.2 dtex) and the number of short fibers (filaments) per thread is 30 When more than one (preferably 50 to 300) is used, a composite fabric having high water repellency is obtained.

If water-repellent agent is given to the layer which mainly arrange | positioned the said nonabsorbing self-extension yarn (B), invasion of rainwater can be prevented. As the water repellent, any of the water repellents conventionally used for textile products can be used. For example, a fluororesin water repellent and a silicone resin water repellent may be used. In that case, although only one type of water repellent may be used, you may use two or more types of water repellents together. When providing a water repellent, when a crosslinking agent, for example, a melamine crosslinking agent, an isocyanate crosslinking agent, etc. are used together, a water repellent can be made to adhere to a two-layer structure knitted fabric more firmly.

There is no particular limitation on the method of imparting a water repellent to the surface of the two-layered composite fabric formed with the non-absorbing self-extending and stretchable yarn (B) as a main component, for example, a flat screen printing method or a rotary screen. The printing method, the roller printing method, the gravure roll method, the kiss roll method, the method by a bubble processing machine, etc. can be used.

In addition, an absorbent may be provided mainly to the layer in which the composite yarn A is arranged. As an absorbent, what is necessary is just an absorbent which has affinity with respect to the composite yarn (A). In particular, an absorbent polymer having affinity for polyester fibers is preferably used. For example, the block copolymer etc. which block-polymerize polyalkylene glycol (polyethylene glycol, polypropylene glycol etc.), terephthalic acid and / or isophthalic acid, and lower alkylene glycol (ethylene glycol etc.) can be illustrated. In that case, only one type of absorbent may be used, or two or more types of absorbents may be used together. There is no restriction | limiting in particular in the provision method of an absorbent. For example, the flat screen printing method, the rotary screen printing method, the roller printing method, the gravure roll method, the kiss roll method, the method by a bubble processing machine, etc. can be used.

In the case of imparting a water repellent agent and an absorbent agent to the two-layered composite fabric of the present invention, the order is not limited, and after the water repellent agent is imparted to the layer mainly composed of the nonmagnetic elongated yarn (B), the absorbent agent is added to the composite yarn (A). You may provide to the layer comprised, or after providing an absorber to the layer mainly comprised by a composite thread (A), you may give a water repellent to the layer mainly comprised by a nonmagnetic extension thread (B). In general, the former method is preferable in practice because it can effectively prevent the absorbent from penetrating into the water repellent surface.

In the two-layered composite fabric of the present invention, in order to prevent rainwater from invading into the fabric, the fabric preferably has a high density. For example, when the two-layered composite fabric of the present invention is a fabric, the cover factor CF of the fabric is preferably in the range of 2500 or more, and more preferably 3000 to 4500. In addition, a cover factor CF is defined by the following formula | equation.

CF = (DWp / 1.1) ^1/2 × MWp + (DWf / 1.1) ^1/2 × MWf

[DWp represents the warp total fineness (dtex), MWp represents the warp yarn straightness (piece / 3.79 cm), DWf represents the weft total fineness (dtex), and MWf represents the weft density (dog / 3.79 cm). .]

As a reference of the said density, the air permeability at the time of drying becomes like this. Preferably it is 5 d / cm <2> s or less, More preferably, it is a density which becomes 0.1-3.Occ / cm <2> * s. Also, preferably the water pressure resistance 10O㎜H ₂ O or more, and more preferably in the density of the 120~600㎜H ₂ 0.

The two-layered composite fabric of the present invention can be easily produced by, for example, the following method.

First, the yarn thread 2 is trimmed with the yarn 1 while overfeeding (oversupplying), or the yarn thread 1 is plied to the yarn 2 made of polyether elastomeric yarn, and the yarn is interlaced, and this is interlaced. It is provided to air processing, a covering process, a composite twist crimping process, etc., and the composite thread thread A is obtained. Among them, covering processing is preferable to form a clear core-shell structure. The draft rate of the draft is preferably 1.1 times or more, more preferably 1.2 to 5.0 times, that is, 120 to 500%.

Subsequently, using the composite yarn (A) alone, or the composite yarn (A) and the nonmagnetic extension yarn (B), the above-described knit structure is appropriately selected to knit the two-layer structure knit fabric. Here, when the composite yarn A has elasticity, but the nonmagnetic extension yarn B does not have elasticity, the composite yarn A tensioned by this tension at the time of knitting is elastically recovered after knitting. Thus, wrinkled irregularities appear on the knitted fabric. For this reason, in order to obtain a relatively flat knitted fabric, as the nonmagnetic elongated yarn B, an elastic single yarn 3 having elasticity or a composite yarn having elasticity is selected. As a thread arrangement at that time, for example, weft double tissues are employed, and the composite yarn A and the nonmagnetic stretch yarn B are alternately used as weft yarns, one to several shifts, and a plurality of to ones. A method for arranging and weaving non-magnetic stretching yarns as dog warps, plural to plural shifts, or the like, or adopting warp double tissue, and using the composite yarns (A) and non-magnetic extension yarns (B) as warp yarns Is arranged in one shift, one unit plural shifts, plural units one shifts, plural units plural shifts, and the like, and nonwoven extension yarns are arranged as wefts, or the composite yarns (A) and nonmagnetic extension The thread B may be arranged in one shift, one versus plural shifts, plural versus one shifts, plural versus plural shifts, and the like, and a method of knitting a letter having a two-layer knitting structure may be used.

It is preferable to give a two-layered composite fabric of the present invention to water repellent or water absorbing as described above. In addition, the dye finish processing may be performed before and / or after the water repellent treatment or the absorbent treatment. Furthermore, you may add and apply various processing which gives functions, such as a raising process, an ultraviolet shielding or an antibacterial agent, a deodorant, an insect repellent, a photoluminescent agent, a retroreflective agent, and a negative ion generating agent.

In the two-layer structure composite fabric of the present invention, at least one layer of the composite yarn A including the absorbent self-extending yarn 1 and the non-absorbing self-extending yarn 2 is included in the first layer. The composite yarn A absorbs magnetically elongates and irregularities appear on the surface of the knitted fabric. On the other hand, at the time of drying, the thread length of the elastic composite yarn A is reversibly shortened as before, and the unevenness is lost.

The composite fabric 11 shown in FIG. 3 includes an upper layer formed by a composite yarn (A) 12 composed of an absorbing self-extending stretchable yarn 1 and a low absorbing self-stretching non-stretchable yarn 2; It is cross-sectional explanatory drawing in the dry state which is an example of the two-layer structure fabric comprised by the lower layer by the yarn (B) 13 containing the low absorption self-expansion stretchable yarn 3. The fabric thickness at this time is d1.

Fig. 4 is a cross-sectional explanatory diagram when the two-layer fabric of Fig. 3 is wetted with water, and the thread 1 in the composite thread A (12) is absorbed and elongated by water wet to increase its length. By this, the thread 2 wound around the thread 1 is also bent or its spiral state is stretched, so that the length of the compound thread A 12 is increased as shown in FIG. , The surface irregularities of the two-layer structure fabric increase, and the thickness d2 becomes larger than d1. When the cloth in the wet state shown in Fig. 4 is dried, it returns to the state of Fig. 3, and the uneven state of the surface is lowered.

The change in the degree of irregularities of the surface of the composite fabric accompanying dry-wet-drying can be represented by the rate of irregularities defined as described above.

It is preferable that the uneven | corrugated change rate of the two-layered composite fabric of this invention is 10% or more, More preferably, it is 20-50%. When this uneven | corrugated change rate is less than 10%, the garment made from the obtained two-layered composite fabric may adhere to skin, when it is wet by sweating, remarkable unpleasant feeling and it may become difficult to dry.

The composite fabric of the present invention is 50 ml / cm 2 · s or less when provided for measurement of air permeability by JIS L 1096-1998, 6.27, A method (Plasyl mold method) in air having a temperature of 20 ° C. and a relative humidity of 65%. It is preferable to represent the air permeability of M, more preferably 5 to 40 ml / cm 2 · s.

100 mmH ₂ O when the composite fabric of the present invention was subjected to a water pressure measurement by JIS L 1092-1998, 4. (1.1) (low water pressure hydrostatic method) in air having a temperature of 20 ° C. and a relative humidity of 65%. preferable that the water pressure or more, more preferably 120~600㎜H ₂ 0.

Further, according to the present invention, fibers of men's clothing, women's clothing, sports clothing and the like, interior products such as beddings and curtains, and in-vehicle products, such as car seats, which are formed using the two-layered composite fabric. Product is provided. Here, you may sew a textile product using all the said knitted fabric, for example, you may sew using it partially, such as an armpit part and a chest part of a garment. When such a fiber product is used, it is possible to prevent the penetration of rainwater. On the other hand, since the contact area with the skin at the location is reduced by wetting such as sweating, stickiness is suppressed and comfort is improved.

The medical material of the present invention includes the stretchable composite fabric of the present invention, and an uneven shape is expressed on at least one surface thereof by wet with water.

The garment of the present invention is formed using the medical material of the present invention, and all of the garment may be formed of the medical material of the present invention, or the armpits, sides, chest, back, and shoulders of the garment. At least one portion selected from may be formed by the medical material of the present invention. In the latter case, the garment part corresponding to the sweating part of a body is formed by the medical material of this invention, and the other part forms the uneven | corrugated shape on the surface by water wetness other than the medical material of this invention. It is formed by a material that does not. For example, the left and right armpit portions 21 of the garment shown in FIG. 5, the left and right sleeve lower portions 22 shown in FIG. 6, and the left and right torso side ends 23, the chest core portion 24 shown in FIG. 7, FIG. At least one of the isotropic middle core portion shown in 8 and the left and right shoulder portions 26 shown in FIG. 9 is formed by the stretchable composite fabric of the present invention. It is preferable that the total area of the part formed by such a composite fabric of this invention is 500-10000 cm <2>, and it is preferable that the ratio with respect to the total area of clothes of this total area exists in 5 to 70% of range, More preferably 60%. When the area ratio is less than 5%, when the clothing is partially wetted by sweating or the like, the effect of the unevenness forming effect of the wetted portion on the entire garment may be less than that. In some cases, the dimensional change of the entire garment may be excessive.

Example

The invention is further illustrated by the following examples. However, the following examples do not limit the scope of the present invention. In the following examples, the following measurements were made.

(1) Length of yarn drying and wetting in nonwoven fabric (quasi)

It measured by the method mentioned above.

(2) Measurement of absorbed magnetic elongation of yarn

It measured by the method mentioned above.

(3) non-aqueous shrinkage of yarn

It measured by the method of JISL1013-1998, 7.15. The measurement test number n was 3.

(4) Measurement of the rate of change of air permeability and air permeability during drying and wetting of nonwoven fabric

The sample of the sample fabric is left in air at a temperature of 20 ° C. and a relative humidity of 65% for 24 hours to prepare a plurality of dry samples (n = 5). Immerse in water, lift it up in water, sandwich it between a pair of filter papers, apply a pressure of 490 N / m 2 for 1 minute to remove water present between the fibers in the sample, prepare a plurality of wet samples, and dry For each of the sample and the wet sample, the air permeability was measured in accordance with JIS L 1096-1998, 6.27.1, Method A (Plasyl Molding Method), and the average air permeability of the dry sample and the average air permeability of the wet sample were calculated. Again formula:

Permeability change rate (%) = ((average aeration of wet samples)-(average aeration of dry samples)] / (average aeration of dry samples) × 100

The air permeability change rate was calculated by.

(5) Determination of the maximum thickness and the rate of irregularities during drying and wetting of the knitted fabric

It measured by the method mentioned above.

(6) cutting elongation

It measured according to JIS L 1013-1998 elongation test method.

(7) Measurement of cover factor CF

It calculated by the following formula.

CF = (DWp / 1.1) ^1/2 × MWp + (DWf / 1.1) ^1/2 × MWf

However, DWp represents the fineness (dtex) of the warp of the test fabric,

MWp represents the density of warp yarn (piece / 3.79 cm),

DWf represents the weft fineness (dtex),

MWf represents the density of the weft yarn (piece / 3.79 cm).

(8) water pressure

The water pressure resistance was measured according to the JIS L 1092 B method (the hydrostatic method of the low water pressure method).

(9) water repellency

The water repellency degree scored according to the evaluation criteria of JISL1092 spray method.

(10) absorbency

The water absorptivity was measured by JIS L 1907 dropping method, and measured by the time until the water droplets dripped on the test piece become no mirror reflection.

(11) Evaluation of skin adhesion (sticky) prevention

Three test subjects wore test clothes, each sitting in a chair for 5 minutes in an environment with a temperature of 35 ° C. and a humidity of 50% RH, followed by walking movement at a constant speed of 5 km / h. Sensory evaluation of the fit of the following three steps.

Evaluation fit

3 Good adhesion

2 There is some feeling of adhesion, but is practical

1 Very poor adhesion

Example  One

A polyetherester polymer composed of 49.8 parts by weight of polybutylene terephthalate as a hard segment and 50.2 parts by weight of polyoxyethylene glycol having a number average molecular weight of 4000 as a soft segment was melted at 230 ° C, and discharged from a spinneret for monofilament 3.05 g / Extruded in minutes. The polymer was drawn through OD 2 to 705 m / min, and then wound to 750 m / min (winding draft: 1.06) to give a yarn count of 44 dtex / 1 filament. Got. The absorbent elongation in the fiber axis direction during absorption and wetting of this yarn 1 was 10%, the non-aqueous shrinkage was 8%, and the elongation at break was 816%.

In addition, as the low absorption self-expandable non-stretchable yarn 2, a normal polyethylene terephthalate multifilament yarn (56 dtex / 144 filament) having a magnetic elongation rate at the time of wetting was less than 1% was used.

Using the superabsorbent magnetic stretchable and stretchable yarn 1 as the core yarn and the low absorbent magnetic stretchable and non-stretchable yarn 2 as the shell yarn, the draft ratio of the core yarn was 300% (3.0 times), The covering process was performed and spliced under the conditions of 1000 times / m (S direction) of covering number, and the elastic composite yarn A was produced.

Separately, polyether ester stretching yarn (trade name: Lexe, Teijin Fiber Co., Ltd., 44dtex / 1 filament, non-aqueous shrinkage: 24%, less than 1% absorption magnetic elongation in the fiber axis direction by water wetting) It was used as the stretchable and stretchable yarn 3, and a normal polyethylene terephthalate multifilament yarn (56 dtex / 144 filament) was used as the yarn 4. The thread thread 3 is used as the core thread and the thread thread 4 is used as the shell thread, and they are subjected to the covering process under the conditions of the core yarn draft ratio: 30% (1.3 times) and the number of coverings: 1000 times / m (S direction). It provided and produced the low absorption self-extension and elastic composite yarn (B).

The composite yarn (A) and the composite yarn (B) were provided to the weaving process as weft yarns. Polyethylene terephthalate multifilament yarn 5 (84 dtex / 30 filament) was used as the warp yarn. The monofilament forming this thread has a flat cross section of flatness: 3.2, and in this cross section, it has three valleys (convex portions) and four ridges (bulges) per side on both sides of the major axis. .

A warp density composed of a composite yarn A and a composite yarn B is alternately driven into each warp made of thread 5 to alternately with respect to 50 pieces, and the warp density is 117/2 / 25.4 mm, and the weft density is 107/2 / 25.4. A plain fabric of mm was produced.

This plain fabric was subjected to a wet heat treatment at 95 ° C for 3 minutes, and was subjected to dyeing at 120 ° C for 45 minutes with a dispersion dye in a liquid dyeing machine. The dyed fabric was provided to the tenter and subjected to dry heat treatment at 160 ° C. for 1 minute while extending the width by 1.1 times.

The obtained plain fabric showed elasticity in the weft direction, and the weft direction elongation was 12%. In addition, the tetragonal length ratio LA / LB of the composite yarn (A) and the composite yarn (B) in the weft of the plain weave was 1.03, and the water wetting was 1.15, and the unevenness of the plain weave was 496%. It was.

In this plain weave, the ratio L1 / L2 of the average length to the thread 2 of the thread 1 in the composite thread A in the weft yarn is 0.42, and the thread of the thread 3 in the yarn (B) ( The ratio L3 / LB of the average length to 4) was 0.79.

As a result of the production of a sports shirt using the above stretch plain weave, unevenness appeared in the shirt due to wear sweating, the adhesion of the shirt to the skin was suppressed, and the fit was comfortable.

Example  2

In the same manner as in Example 1, weaving, dyeing and heat-treated stretched plain fabric was produced. However, as the warp thread, fine-grained polyester multifilament yarn (84 dtex / 72 filament) was used.

In the obtained stretchy plain fabric, the tetragonal length ratio LA / LB at the time of drying of the composite yarn (A) and the composite yarn (B) used as the weft was 1.02, 1.14 at the time of wet wetting, and the unevenness change rate by wet wetting. Was 487%.

Moreover, the average length ratio L1 / L2 with respect to the thread 2 of the thread 1 in the composite thread A included in the weft of the stretch plain weave is 0.43, and the thread of the thread B in the compound thread B The average length ratio L3 / L4 for 4) was 0.80.

The stretch rate in the weft direction of the stretchable plain fabric was 11%.

As a result of the production of a sports shirt using the above stretch plain weave, unevenness appeared in the shirt due to wear sweating, the adhesion of the shirt to the skin was suppressed, and the fit was comfortable.

Comparative example  One

In the same manner as in Example to prepare a woven, dyed, heat-treated plain weave. However, only composite yarn (A) was used for the weft.

In the obtained stretchy plain fabric, the stretch ratio in the weft direction was 10%. However, when the elastic plain fabric was wetted, it stretched substantially constant in the weft direction, and virtually no concave-convex shape was expressed (concave-convex change rate = 0.5%).

The plain fabric was used to make sports shirts. As a result of wearing this, the shirt elongated in the weft direction of the fabric at the time of sweating, the uneven shape did not develop, and thus the adhesion of the shirt to the skin could not be suppressed, and the feeling of wearing was unsatisfactory.

Example  3

A polyether ester composed of 49.8 parts by weight of polybutylene terephthalate as a hard segment and 50.2 parts by weight of polyoxyethylene glycol having a number average molecular weight of 4000 as a soft segment was melted at 230 ° C. and discharged at a predetermined spinneret at a discharge rate of 3.05 g / min. Extruded. This polymer was taken out at 705 m / min through two roller rolls, and again wound up at 750 m / min (winding draft 1.06), and the high absorption self-extension and elastic yarn (1) of 44 decitex / 1 filament was obtained. The weaving elongation of this yarn 1 in the fiber axis direction was 25%, and the elongation at break was 816%.

In addition, as a low-absorbing self-extending yarn, a combustible crimped yarn (56 decitex / 144 filament, which has been subjected to a normal combustible crimping process on a multifilament yarn made of a conventional polyethylene terephthalate having a self-expansion rate of 1% or less when wet Short fiber fineness 0.39 dtex) was prepared.

The thread yarn 1 and the yarn 2 are provided to the covering yarn, and the yarn thread 1 is the core yarn, and the yarn thread 2 is the shell yarn, and the draft ratio of the core yarn is 120% (1.2 times) and the number of coverings. : Covering plywood was performed under the conditions of 1000 times / m (S direction), and the stretchable composite yarn A was produced.

Separately, polyether ester elastic yarn (trade name: Lexese, manufactured by Teijin Fiber, 44dtex / 1 filament, non-aqueous shrinkage: 24%, magnetic elongation in the fiber axis direction when wet: less than 1%, cut elongation: 650%) It is used as the low-absorption self-extension and elastic yarn (3), and polyethylene terephthalate multifilament yarn (56 dtex / 144 filament), short fiber fineness: 0.39 dtex, wet axial magnetic elongation: less than 1%) It was used as a low absorption self-extension and non-stretchable yarn (4). Using the thread yarn 3 as the core yarn and the thread yarn 4 as the shell yarn, the yarn was supplied to the covering taper yarn, and the core yarn draft ratio was 300% (3.0 times) and the number of coverings was 1000 times / m (S direction). In this case, covering yarn was carried out to prepare a stretchable composite yarn (B).

Separately, the polyethylene terephthalate multifilament is subjected to a twist crimping process to produce a polyester twist crimping thread (84 dtex / 72 filament, short fiber fineness: 1.17 dtex), and the two threads are 200 times / m (S direction). ) Was twisted while twisting to form a bonded polyester yarn 5.

The above-mentioned polyester polyester yarn 5 is used as a warp yarn, the composite yarns (A) and (B) are used as weft yarns, and the composite yarn (A) and the composite yarn (B) are alternated with respect to each one. It was arrange | positioned at, and was woven as warp density: 135 piece / 3.79 cm and weft density: 215 piece / 3.79 cm by the textile structure shown in FIG. This fabric was a weft double fabric in which the composite yarn 1 mainly appeared on one side and the composite yarn 2 mainly appeared on the other side.

The fabric was subjected to wet heat treatment at 95 ° C for 3 minutes, and this was dyed at 120 ° C for 45 minutes with a disperse dye in a liquid dyeing machine. Roller-printed an aqueous solution for water repellent treatment containing 3.0% by weight of a fluorine-based water repellent agent (trademark: Asahigard AG7101, manufactured by Asahi Glass Co., Ltd.) on the surface where the composite yarn (B) mainly appeared in the dyed fabric. It applied by the method, it dried at 120 degreeC, it provided to the tenter, and performed the drying process for 160 degreeC * 45 second, extending | stretching width 1.1 times.

The obtained two-layer structure fabric had the following performance.

Breathability: 1.40 ml / cm 2

Water pressure of the surface where the composite thread B mainly appears: 175 mmH ₂ O

Water repellency of the surface of the complex yarn B mainly

Absorption of the surface mainly exhibited by the composite yarn (A): 5.5 seconds

Unevenness rate: 25%

Fit: 3

As a result of manufacturing and wearing a garment for sports outerwear using the two-layer fabric, the surface on which the composite yarn B is mainly exposed can prevent the ingress of rainwater, and the composite yarn A is mainly exposed. When there was sweating, there was little adhesion and agglomeration of the clothing on the skin, and the wearing feeling was comfortable.

Example  4

In the same manner as in Example 3, a two-layer structure fabric was fabricated which was woven, dyed, water repellent, and heat treated. However, two polyester twisted crimped yarns (84dtex / 36 filament, short fiber fineness: 2.3dtex) obtained by performing a twist crimping process on a polyethylene terephthalate multifilament yarn (absorption magnetic elongation when wet: 1% or less) as a warp yarn Was prepared, and the braided yarn obtained by performing 200 times / m (S direction) of burning was used.

The obtained two-layered fabric had the following performance.

Absorbency of non-water repellent cotton: 6.4 sec

Unevenness rate: 22%

Fit: 3

Breathability: 5.5 ml / cm 2 s

Water resistance of water-repellent cotton: 80 mm H ₂ 0

As a result of manufacturing and wearing a sports outerwear garment from the fabric, the waterproofness was slightly lower than that of Example 1, but the fit was good.

Example  5

In the same manner as in Example 1, weaving, dyeing, water repellent treatment and heat treatment were prepared two-layer structure fabric. However, as the low-absorption self-extension and non-stretchable yarn (2) used in the composite yarn (A), the combustible crimp obtained by performing a false crimping treatment on a polyethylene terephthalate multifilament yarn (absorption magnetic elongation at wet: 1% or less). Processed yarn (56 dtex / 24 filament, short fiber fineness: 2.3 dtex) was used.

The obtained two-layered fabric had the following performance.

Breathability: 1.5 ml / cm 2 s

Water resistance of surface treated with water repellent: 170 mm H ₂ O

Water repellency degree of the surface treated with water repellent: Grade 5

Absorbency of non-water repellent cotton: 32 seconds

Fit: 2

Unevenness rate: 8%

As a result of manufacturing and wearing a sports outerwear garment from the fabric, the feeling of wearing was slightly lower than that of Example 1, but the waterproofness was good.

Example  6

In the same manner as in Example 3, a composite yarn A was produced. However, the draft rate of yarn 1 in the plywood yarn was changed to 300% (three times).

In the same manner as in Example 3, a composite yarn (B) was produced.

Separately, as the weaving warp yarn, the same polyethylene terephthalate multifilament twisted crimped yarn (84 dtex / 72 filament, short fiber fineness: 1.17 dtex) as used in Example 1 was 300 times / m (S direction) in a single yarn state. The yarn obtained by performing the combustible treatment of was used.

Using the composite yarn (A) and the composite yarn (B) as the weft yarn, and also using the warp yarn, the warp density: 188 pieces / 3.79 cm, the weft density: 157 / 3.79 cm two-layer fabrics were prepared. One side of this two-layer structure fabric mainly exhibits the composite yarn A, and the other side mainly shows the composite yarn B.

The two-layer fabric was subjected to the same dyeing, water repellent treatment, and heat treatment as in Example 3.

The obtained two-layered fabric had the following performance.

Breathability: 4.50 ml / cm 2 s

Water resistance of water-repellent cotton: 120 mm H ₂ 0

Water repellency of water repellent cotton: Grade 5

Absorbency of non-water repellent cotton: 8.2 sec

Unevenness rate: 40%

Fit: 3

Using the two-layered fabric, the garment for sports outerwear was manufactured and worn. As a result, the waterproofness and the feeling of wearing (perspiration of the garment to the skin when it was sweated and anti-agglomeration) were good.

Example  7

In the same manner as in Example 6, the two-layer fabric was woven, a wet heat treatment was performed at 95 ° C for 3 minutes, and dyeing was performed at 120 ° C for 45 minutes with a disperse dye in a liquid dyeing machine. Was immersed in an absorbent treatment solution containing 5.0% by weight of an absorbent (trademark: YM-81, manufactured by Takamatsu Oil Industries, Ltd.), squeezed out moisture, and impregnated with 120% of an absorbent based on the weight of the fabric, at a temperature of 120 ° C. It dried, provided to the tenter, and heat-processed for 160 degreeC x 45 second, extending the width 1.2 times.

The obtained two-layered fabric had the following performance.

Breathability: 4.50 ml / cm 2 s

Absorption of the surface mainly exhibited by the composite yarn (A): 1.5 seconds

Unevenness rate: 40%

Fit: 3

As a result of producing and wearing a sports outerwear garment from the two-layer fabric, the adhesion of the garment to the skin due to sweating was less, there was less agglomeration, and the wearing comfort was comfortable.

Claims (20)

As a knitted fabric comprising at least three yarns (1), (2), and (3) different from each other, The yarn 1 is made of a fiber having a relatively high absorption magnetic elongation and elasticity, and is a superabsorbent magnetic elongation / elastic yarn having a cut elongation of 200% or more, Yarn 2 is a low-absorption self-extension and non-stretchable yarn made of fibers having a relatively low absorption magnetic elongation, but not substantially showing elasticity, The yarn 3 is a low absorption magnetic stretchable / elastic yarn made of a fiber having a relatively low absorption magnetic elongation and elasticity and having a cut elongation of 30% or more, Each of the yarns (1), (2), and (3) is wound around a rim of 1.125 m, with a load of 0.88 mN / dtex, while forming a skew of 10 windings, and the thread It is removed from the frame and left to stand in an air environment with a temperature of 20 ° C. and a relative humidity of 65% for 24 hours to adjust the condition. A load of 0.0088 mN / dtex is applied to the drying tuft chamber to measure the length of the drying thread (Ld, mm). After immersing this skein thread in water of 20 degreeC for 5 minutes, it lifts out of water, loads 0.0088 mN / dtex to this wet skein thread, and measures the wet thread length (Lw, mm), and is a following formula: Yarn Absorption Magnetic Elongation (%) = (Lw-Ld) / (Ld) × 100 When given to the measurement to calculate the self elongation rate of each thread by The yarn 1 has an absorbent magnetic elongation of at least 5%, the yarns 2 and 3 have an absorbent magnetic elongation of less than 5%, Absorbing self-extension / elastic composite yarn (A) is formed from said yarn (1) and yarn (2), and said yarn (3) is a non-absorbing self-extension / elastic yarn (B) which does not substantially exhibit self-extension. ) Are included, The woven fabric was dimensionally stabilized in an atmosphere having a temperature of 20 ° C. and a relative humidity of 65%, and from this dimensional stabilized woven fabric, a test piece of the composite yarn A having a length of 30 cm was taken, and this test piece An elastic composite fabric characterized in that the ratio L1 / L2 is 0.9 or less when the average lengths L1 and L2 under the load of 0.0088 mN / dtex of the yarns 1 and 2 in the above are measured. The method of claim 1, The stretchable composite fabric has a woven fabric, and in the warp group and / or weft group in the woven fabric, the absorbent stretchable and stretchable yarn (A) and the nonabsorbable stretchable and stretchable yarn (B) are 1 Composite fabrics alternately arranged with respect to dogs or dogs. The method of claim 2, The composite thread (A) and the thread (B) constitute only one thread group among the warp group and the weft group in the fabric tissue, and the other thread group is different from the complex thread (A) and the thread (B). Composite fabric composed of one or more threads. The method of claim 3, wherein The yarns different from the composite yarns (A) and (B) are selected from yarns consisting of a plurality of single fibers having a flat cross-sectional shape and yarns consisting of a plurality of single fibers having a fineness of 1.5 dtex or less. Composite fabric. The method of claim 1, The composite fabric has a multilayer structure of two or more layers, at least one layer of the multilayer structure contains the composite yarn (A) at a content of at least 20% by mass of its total mass, and at least one other layer of the multilayer structure is The composite fabric containing said yarn (B) in the content rate of 20 mass% or more of total mass. The method according to any one of claims 1 to 5, The fiber which comprises the said superabsorbent self-extension and stretchable yarn 1 contained in the said composite yarn A contains the hard segment which consists of a polybutylene terephthalate block, and the soft segment which consists of a polyoxyethylene glycol block. A composite fabric selected from polyetherester fibers formed from polyetherester elastomers. The method according to any one of claims 1 to 6, The composite fabric in which the fiber which comprises the low absorption self-extension and non-stretchable yarn 2 contained in the said composite yarn (A) is chosen from polyester fiber. The method according to any one of claims 1 to 7, The composite fabric whose short fiber fineness of the fiber which comprises the said yarn 2 is 1.5 dtex or less. The method according to any one of claims 1 to 8, The non-absorbing self-extending and stretchable yarn B is a composite yarn including other yarns 4 in addition to the low-absorbing self-extending and stretchable yarn 3, wherein the yarn 3 is cut at least 200%. Yarn in the composite yarn when the yarn 4 has an elongation rate and is composed of fibers substantially free of absorbent magnetic extensibility and elasticity, and measured by the same measuring method as the composite yarn A. The composite fabric whose ratio L3 / L4 with respect to the average length L4 of the yarn 4 of the average length L3 of 3) is 0.9 or less. The method of claim 9, The poly constituting the fiber constituting the yarn 3 having the elongation at break of 200% or more is made of a polyetherester elastomer comprising a hard segment made of a polybutylene terephthalate block and a soft segment made of a polytetramethylene oxide glycol block. Composite fabrics selected from etherester fibers. The method of claim 9, The composite fabric in which the fibers constituting the yarns (4) are selected from polyester fibers. The method according to any one of claims 1 to 11, A plurality of samples having a size of 5 cm × 2 cm are taken from the composite fabric and left for 24 hours in an air at a temperature of 20 ° C. and a relative humidity of 65% to prepare a plurality of dry samples, and separately from the composite fabric. A plurality of cm × 2 cm samples were taken, these were immersed in water at a temperature of 20 ° C. for 5 minutes, lifted up in water, sandwiched between a pair of filter papers, and a pressure of 490 N / m 2 was applied for 1 minute. Water existing between the fibers was removed to prepare a plurality of wet samples, and the average maximum thickness Dw of the wet sample and the average maximum thickness Dd of the dry sample were measured, and the following equation: Unevenness change rate (%) = ((Dw-Dd) / (Dd)] × 100 When the unevenness change rate was measured by, the composite fabric having a uneven change rate of 10% or more. The method according to any one of claims 1 to 12, The composite fabric has a fabric structure, the cover factor of this fabric is more than 2500 composite fabrics. The method according to any one of claims 1 to 13, A composite fabric in which water repellent is applied to at least one surface of the composite fabric. The method according to any one of claims 1 to 14, When the composite fabric was provided for measurement of air permeability by JIS L 1096-1998, 6.27, A method (Plazil method) in air having a temperature of 20 ° C. and a relative humidity of 65%, air permeability of 50 ml / cm 2 · s or less was obtained. Composite fabric indicating. The method according to any one of claims 1 to 15, When the composite fabric was subjected to the water pressure measurement by JIS L 1092-1998, 4. (1.1) (low water pressure hydrostatic method) in air having a temperature of 20 ° C. and a relative humidity of 65%, a water pressure of 100 mmH ₂ O or higher. Composite fabric indicating. A garment material comprising the stretchable composite fabric according to any one of claims 1 to 15, wherein an uneven shape is expressed on at least one surface thereof by wet with water. Clothing which has at least 1 part selected from the armpit part, the side part, the chest part, the back part, and the shoulder part of medical care by the medical material of Claim 16. The method of claim 18, And wherein said garment is selected from underwear garments. The method of claim 18, The garment wherein said garment is chosen from sports medicine.

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