WO2006041200A1

WO2006041200A1 - Woven/knit fabric including crimped fiber and becoming rugged upon humidification, process for producing the same, and textile product

Info

Publication number: WO2006041200A1
Application number: PCT/JP2005/019245
Authority: WO
Inventors: Satoshi Yasui; Takeshi Yamaguchi; Masato Yoshimoto; Shigeru Morioka
Original assignee: Teijin Fibers Limited
Priority date: 2004-10-15
Filing date: 2005-10-13
Publication date: 2006-04-20
Also published as: EP1801274A4; TWI366613B; CN101040076B; US20070270067A1; CN101040076A; TW200619442A; KR101220720B1; KR20070067131A; EP1801274A1; EP1801274B1; CA2579211C; JP2006112009A; CA2579211A1

Abstract

A woven/knit fabric which becomes rugged upon humidification and loses the ruggedness upon drying. The fabric comprises: crimped fibers (A) whose percentage crimp decreases upon humidification; and fibers (B) comprising non-crimped fibers and/or crimped fibers whose percentage crimp does not substantially change upon humidification. The percentage change in ruggedness of this woven/knit fabric as calculated from the thickness of the dry fabric (TD) and the thickness of the humidified fabric (TW) using the following equation: Percentage change in ruggedness (%) = ((TW-TD)/TD)×100 is 5% or higher.

Description

Crimped fiber-containing woven or knitted fabric in which irregularities appear by water wetting, as well as its production method and textile product

Technical field

The present invention relates to a crimped fiber-containing woven or knitted fabric that exhibits unevenness when wet with water.

The present invention relates to a manufacturing method and a textile product. More specifically, the present invention includes a crimped fiber in which the crimping rate is reduced by water wetting and a fiber different from the crimped fiber, and the surface of the woven or knitted fabric is uneven by water wetting. Woven knitted or knitted fabric that has the property that the unevenness is reduced or disappeared by drying, so that even if the woven or knitted garment gets wet by sweating, the garment does not adhere to the skin, or its production method and textile product It is about.

Background art

Conventionally, when sportswear inner wear is manufactured from a woven or knitted fabric made of synthetic fiber or natural fiber, and this is worn, there has been a problem that stuffiness or stickiness occurs due to sweating from the skin.

In particular, for vaporous sweat generated in the early stages of sweating, a method of using a highly hygroscopic fiber as a material constituting the garment, and a structure and density of the woven or knitted fabric constituting the garment are roughened and the ventilation is performed. There are widely used methods to improve the performance.

On the other hand, for liquid sweat in the middle to late periods of sweating, a multilayer structure woven or knitted fabric creates a difference in density between the outer layer and inner layer (skin side), and quickly transfers the sweat absorbed on the skin side to the outside. Use possible woven or knitted fabric (see, for example, Patent Document 1) To reduce stickiness by reducing the contact area between skin and clothes

(See, for example, Patent Document 2 and Patent Document 3). However, the former had a problem that when the sweating exceeded the saturated water absorption amount of the clothes, the sweat also remained on the side of the skin, resulting in the clothes sticking to the skin. For the latter, as the amount of sweat increases, the amount of unevenness becomes insufficient, causing the clothes to stick to the skin.To avoid this, increasing the amount of unevenness increases the air content of the woven or knitted fabric and increases the heat retention. On the contrary, there was a problem that the sweating was promoted, the uneven convex part rubbed with the skin and it was uncomfortable, and the convex part was rubbed by the skin and easily caused pilling.

For this reason, there has been a demand for the appearance of a woven or knitted fabric that can reduce tackiness by reversibly expressing irregularities on the surface of the woven or knitted fabric when wet.

[Patent Document 1] Japanese Patent Application Laid-Open No. 9 1 3 16757

[Patent Document 2] Japanese Patent Laid-Open No. 10-131000

[Patent Document 3] Japanese Patent Application Laid-Open No. 9-324313 Disclosure of Invention

An object of the present invention is to include a woven or knitted fabric in which irregularities appear on the surface of the woven or knitted fabric when wet, and the unevenness is reduced or eliminated by drying, and a method for producing the woven or knitted fabric. It is to provide a textile product that does not cause discomfort due to wetting caused by water.

The above object is achieved by the crimped fiber-containing woven or knitted fabric of the present invention, the production method thereof, and the textile product.

The crimped fiber-containing woven or knitted fabric that exhibits irregularities when wetted with water according to the present invention includes a yarn containing a crimped fiber (A) whose crimping rate decreases when wetted with water, and a non-crimped fiber and wetted with water. The shrinkage has changed substantially A knitted or knitted fabric containing yarns containing at least one type of fiber B selected from non-crimped fibers,

The woven or knitted fabric was allowed to stand for 24 hours in an environment of a temperature of 20 and a humidity of 65% RH. The thickness TD of the woven or knitted fabric after being left for 24 hours, and 1 ml of water were dropped on the woven or knitted fabric for 1 minute. From the maximum thickness TW of the water-wet part of the woven or knitted fabric after elapse of time, the unevenness change rate calculated by the following formula:

Unevenness change rate (%) = ((TW-TD) / TD) X 100 is characterized by being 5% or more.

In the crimped fiber-containing woven or knitted fabric that exhibits irregularities when wetted with water according to the present invention, the crimped fibers A are different from each other in water supply and self-extension properties, and are joined in a side-by-side shape. It is preferably selected from crimped composite fibers comprising a polyester fiber resin component and a polyamide resin component and having crimps formed by expressing the latent crimp performance.

In the crimped fiber-containing woven or knitted fabric that exhibits irregularities when wetted with water according to the present invention, the polyester fiber resin component is based on the content of the acid component. The lithium sulfoisophthalic acid is preferably composed of a modified polyethylene terephthalate resin copolymerized with 2.0 to 4.5 mol%.

In the crimped fiber-containing woven or knitted fabric that exhibits unevenness when wetted with water according to the present invention, the yarn containing the crimped fiber A preferably has a twist number of 0 to 300 T Zm.

In the crimped fiber-containing woven or knitted fabric that exhibits unevenness when wetted with water according to the present invention, the fiber B is preferably formed of a polyester resin.

In the crimped fiber-containing woven or knitted fabric that exhibits irregularities when wetted with water according to the present invention, the woven or knitted fabric is composed only of the crimped fiber A 1 Having at least one portion Y and at least one portion selected from the warp and weft directions of the knitted or knitted fabric, wherein the Hij d Z portion has at least one portion Y composed of only the fibers (B). Direction, or course and c: may be formed continuously in at least one direction selected from one direction.

In the crimped fiber-containing woven or knitted fabric that exhibits irregularities by water wetting of the present invention, the woven or knitted fabric is composed of only one or more partial ridges composed of the fibers B, and the fibers (A). And at least one direction selected from the warp and weft directions of the woven or knitted fabric, or the course and the wale. It may be formed continuously in at least one direction selected from the directions.

In the crimped fiber-containing woven or knitted fabric that exhibits irregularities by water wetting of the present invention, the woven or knitted fabric is composed of at least one portion X constituted by the crimped fiber A and the fiber B, and And at least one portion Y composed only of the crimped fiber A, and the X portion is selected from at least one direction selected from the warp and weft directions of the woven or knitted fabric, or from the course and wale directions. It may be formed continuously in at least one selected direction.

In the crimped fiber-containing woven or knitted fabric that exhibits unevenness by water wetting of the present invention, the woven or knitted fabric is composed of at least one portion X composed of the crimped pd crimped fiber A and the fiber B, and At least one part Y composed only of the crimped fiber A and only the fiber B is formed.

,

At least one part z, and the Z part is selected from at least one direction selected from the warp and weft direction of the weaving knitted fabric, or from the course and wale direction. It may be formed continuously in at least one direction. In the crimped fiber-containing woven or knitted fabric that exhibits irregularities by water wetting of the present invention, the woven or knitted fabric has a multilayer woven or knitted structure of two or more layers, and at least one layer in the multilayered structure is the above-mentioned Consists of crimped fibers A and B, at least one other layer is composed of only the fibers B, and the fibers A and B-containing layers and the fiber B-containing layers are partially interchanged. It may be connected to the cable.

In the crimped fiber-containing woven or knitted fabric that exhibits unevenness when wetted with water according to the present invention, the woven or knitted fabric has a multilayer woven or knitted structure of two or more layers, and at least one layer in the multilayered structure is the crimped Consists of fiber A and fiber B, and at least one other layer is composed only of the crimped fiber A, and the fiber A and B-containing layer and the crimped fiber-containing layer are partially mutually It may be connected.

In the crimped fiber-containing woven or knitted fabric that exhibits unevenness when wetted with water according to the present invention, the woven or knitted fabric has a multilayer woven or knitted structure of two or more layers, and at least one layer in the multilayered structure is the crimped It is composed only of the fiber A, and at least one other layer is composed only of the crimped fiber B, and the crimped fiber-containing layer and the fiber B-containing layer are partially connected to each other. It may be.

The method for producing a crimped fiber-containing woven or knitted fabric of the present invention is a method for producing a crimped fiber-containing woven or knitted fabric that exhibits unevenness by water-wetting according to the present invention, wherein the crimped fiber is expressed by heat treatment, When the crimp is wetted with water, the crimp has a property of reducing the crimp rate, a fiber for forming the crimped fiber A, a fiber that does not exhibit crimp by the heat treatment, and The crimp is formed by the heat treatment, but the crimp is formed of at least one fiber selected from fibers that do not substantially reduce the crimp rate due to wetting with water. A process for producing a precursor knitted fabric from fibers and a heat treatment applied to the precursor knitted fabric And a step of forming a woven or knitted fabric containing the crimped fiber A and the fiber B.

In the method for producing a crimped fiber-containing woven or knitted fabric of the present invention, the crimped fibers A forming fibers are different from each other in water absorption and self-extension properties, and are joined in a side-by-one-side type. It is preferable to select from uncrimped composite fibers composed of a resin component and a polyamide resin component.

In the method for producing a crimped fiber-containing woven or knitted fabric of the present invention, the polyester resin component in the uncrimped composite fiber includes a polyester resin having an intrinsic viscosity of 0.30 to 0.43, and It is preferable that the resin component contains a polyamide resin having an intrinsic viscosity of 1.0 to 1.4.

In the method for producing a crimped fiber-containing woven or knitted fabric of the present invention, after the uncrimped composite fiber is subjected to a crimp expression treatment in boiling water,

(1) After having been left in an environment of temperature 20 ° C and humidity 65% RH for 24 hours, it has a dry crimp rate DC in the range of 1.5 to 13%,

(2) Immediately after being immersed in water at a temperature of 20: for 2 hours, it has a water wet crimp rate HC in the range of 0.5 to 7.0%, and

(3) The difference between the dry crimp rate DC and the water wet crimp rate HC (DC-HC) force is preferably 0.5% or more.

The textile product of the present invention includes the crimped fiber-containing woven or knitted fabric of the present invention.

The textile product of the present invention is preferably applied from outer clothing, sports clothing, and inner clothing.

According to the present invention, the crimped fiber A whose crimping rate is reduced by water wetting and the fiber B which does not substantially change the crimping rate by water wetting, the surface is uneven by water wetting and is dried by drying. Providing a crimped fiber-containing woven or knitted fabric in which the unevenness is reduced or eliminated, a manufacturing method thereof, and a fiber product including the same can do. Brief Description of Drawings

FIG. 1 is an explanatory view showing a cross-sectional shape of an example of a crimped conjugate fiber used in the woven or knitted fabric of the present invention.

FIG. 2 is an explanatory view showing a cross-sectional shape of another example of the crimped conjugate fiber used in the woven or knitted fabric of the present invention.

FIG. 3 is an explanatory view showing a cross-sectional shape of still another example of the crimped conjugate fiber used in the woven or knitted fabric of the present invention.

In FIG. 4, FIG. 4 (A) is an explanatory view showing the cross-sectional shape in the dry state of an example of the woven or knitted fabric of the present invention, and FIG. 4 (B) shows the cross-sectional shape in the water-wet state of the woven or knitted fabric. It is an explanatory diagram,

FIG. 5 is an explanatory plan view showing the structure of another example of the woven or knitted fabric of the present invention when it is in a dry state.

In FIG. 6, FIG. 6 (A) is an explanatory view showing a cross-sectional shape of still another example of the woven or knitted fabric of the present invention in a dry state, and FIG. 6 (B) is a water-wetting of the woven or knitted fabric. It is explanatory drawing which shows the cross-sectional shape when it is in a state,

FIG. 7 is an explanatory plan view showing the structure of still another example of the woven or knitted fabric of the present invention when it is in a dry state. BEST MODE FOR CARRYING OUT THE INVENTION

The fiber B consisting of at least one kind selected from the crimped fiber A of the present invention in which the crimp rate is reduced by water wetting and the non-crimped fiber and the crimped fiber in which the crimp rate is not substantially changed by water wetting. Is included. When such a crimped fiber-containing woven or knitted fabric of the present invention is wetted with water (for example, when wetted by sweat or rain), only the crimped fiber A is The crimping rate of the crimped fiber A is decreased when the apparent length of the crimped fiber A is increased and the surface of the woven or knitted fabric wetted with water is formed uneven. Increases or shifts to the old, and its apparent length decreases or shifts to the old, whereby the irregularities decrease or disappear. That is, in the woven or knitted fabric of the present invention, the appearance of unevenness due to water wetting and the reduction or disappearance of unevenness due to drying are performed reversibly. The thickness (TD) of the woven or knitted fabric of the present invention when dried and when wetted with water When the unevenness change rate is calculated from the thickness (TW) by the following formula, the unevenness change rate is 5% or more, preferably 10 to 100%. When the unevenness change rate is less than 5%, the unevenness in the woven or knitted fabric is insufficient when wet, and skin discomfort when wearing it cannot be sufficiently reduced.

Unevenness change rate (%) = ((TW-TD) / TD) X 100

However, the thickness at the time of drying is the thickness after leaving the woven or knitted fabric at a temperature of 20 and a humidity of 65% RH for 24 hours. On the other hand, the thickness at the time of wetness is the thickness of the woven or knitted fabric. This is the maximum thickness of the dripping point after 1 minute of dripping water for 1 minute. These thicknesses are measured using, for example, an ultra-high precision laser displacement meter (Model LC-2400, manufactured by Keyence Corporation). Can be measured.

In the above-mentioned crimped fiber A, it is important that the difference (DC—HC) between the crimping rate DC during drying and the crimping rate HC when wet (DC—HC) is 0.5% or more. The fiber is a composite fiber in which two types of resin components that differ from each other in heat shrinkage, for example, a polyester resin component and a polyamide resin component, are joined in a side-by-side shape, and develops latent crimping performance. A crimped fiber having a crimped structure is preferred. The polyester resin component in the side-by-side composite fiber has an alkanoic or alkaline earth metal salt or phosphonium salt of sulfonic acid in order to increase adhesion to the polyamide component. And a modified polyester such as polyethylene terephthalate, polypropylene terephthalate, and polybutylene terephthalate, which are copolymerized with a compound having one or more functional groups having ester-forming ability. . Among them, a modified polyethylene terephthalate obtained by copolymerizing the above compound is particularly preferable because it is versatile and has a low polymer cost. Examples of the copolymer component include 5-sodium sulfoisophthalic acid and its ester derivatives, 5-phosphonium myophthalic acid and its ester derivatives, and P-hydroxybenzene sodium sulfonate. Of these compounds, 5-sodiumsulfoisophthalic acid is preferred. The copolymerization amount of the copolymer component is preferably in the range of 2.0 to 4.5 mol% of the molar amount of the dicarboxylic acid component of the polyester resin component. If the copolymerization amount is less than 2.0 mol%, excellent crimping performance can be obtained, but peeling may occur at the bonding interface between the polyamide component and the polyester component. On the contrary, if the copolymerization amount is larger than 4.5 mol%, the crystallization of the polyester component becomes difficult to proceed during the stretching heat treatment, so the stretching heat treatment temperature needs to be higher than the normal level. As a result, thread breakage may occur frequently.

In addition, the polyamide resin component of the side-by-side type composite fiber is not particularly limited as long as it has an amide bond in the main chain. For example, nylon-4, Nylon 1-6, Nylon 166, Nylon 146, Nylon-12 and so on. Of these, Nylon No. 6 and Ny-Non-66 are preferred in terms of versatility, polymer cost, and yarn production stability. The polyester resin component and the polyamide resin component include known additives such as pigments, pigments, matting agents, antifouling agents, fluorescent whitening agents, flame retardants, stabilizers, antistatic agents, and light resistance agents. UV absorbers and the like may be included.

Two types of resin components that differ from each other in heat shrinkability (polyester resin component and polyamide resin component) A composite fiber that is bonded to a side-by-side type has an arbitrary cross-sectional shape and composite Can take form. FIGS. 1 to 3 exemplify the cross-sectional shape of the side-by-side composite fiber used in the present invention. The composite fiber 1 shown in FIG. 1 has a circular cross-sectional shape, and a polyester resin component 2 and a polyamide resin component 3 are bonded to a side by side. The composite fiber shown in FIG. 2 has an elliptical cross-sectional shape, and the polyester resin component 2 and the polyamide resin component 3 are bonded side-by-side. The composite fiber 1 shown in FIG. 3 has a circular cross-sectional shape, and a polyamide resin component 3 having a circular cross-sectional shape is composited in a polyester resin component 2 in an arrangement close to a core-sheath type. . However, a portion of the polyamide resin component 3 is exposed on the fiber peripheral surface.

The cross-sectional shape of the side-by-side one-sided composite fiber may be a polygon such as a triangle or a quadrangle, a flat shape, a star shape, etc. in addition to the circle and the ellipse, and has a hollow portion. It may be. Among these, it is preferable to have a circular cross-sectional shape shown in FIG. 1. The mass ratio of the polyester resin component to the polyamide resin component in the side-by-side type composite fiber used in the present invention is 30. : 70-70: 30 is preferable, and 40: 60-60: 40 is more preferable.

The single fiber fineness of the crimped fiber A used in the present invention is 1 to 10d x It is preferably 2 to 5 dtex. When the crimped fiber A is used as a yarn or filament bundle, the number of single fibers is preferably 10 to 200, more preferably 20 to 100.

A composite fiber in which two types of resin components different from each other in heat shrinkability are joined in a side-by-side shape can take any cross-sectional shape and composite form. FIGS. 1 to 3 exemplify enlarged cross-sectional views of a side visor type composite fiber that can be used in the present invention. Usually, a composite fiber having a cross section shown in FIGS. 1 and 2 is used, but it may be close to an eccentric core-sheath type as shown in FIG. Further, it may be a triangle, a quadrangle, or a hollow part in its cross section. In particular, it is preferable to have a circular cross-sectional shape as shown in FIG. 1, but it may have an elliptical cross-sectional shape as shown in FIG. The composite ratio of the two components can be arbitrarily selected, but usually the mass ratio of the polyester resin component 1 and the polyamide resin component 2 is preferably 30:70 to 70:30, more preferably 40: 60-60: 40.

The single yarn fineness and the number of single yarns (number of filaments) of the crimped fiber A are not particularly limited, but the single yarn fineness l to 10 dtex (more preferably 2 to 5 dtex), the number of single yarns 10 to It is preferably within the range of 200 (more preferably 20 to 100).

Such composite fibers in which different types of polymers are joined in a side-by-side type usually have latent crimping performance, and as will be described later, the latent crimping performance is manifested by heat treatment such as dyeing. To do. As the crimped structure, it is preferable that the polyamide component is located inside the crimp and the polyester component is located outside the crimp. A composite fiber having such a crimped structure can be easily obtained by the production method described later. Crimp When fiber A has such a crimped structure, the inner polyamide component swells and stretches when wet, and the outer polyester component hardly undergoes a length change. descend. For this reason, the apparent length of the crimped fiber A becomes longer. On the other hand, during drying, the inner polyamide component shrinks, and the outer polyester component hardly changes in length, so the crimp rate increases. For this reason, the apparent length of the crimped fiber A is shortened.

The crimped fiber A is preferably a non-twisted yarn or a sweet twisted yarn subjected to twisting of 300 T Zm or less so that the crimping rate is easily lowered when it is wet. In particular, non-twisted yarn is preferable. If a strong twist is applied, as in the case of a strong twisted yarn, the crimp rate may be difficult to decrease when wet. Even if in-lace air processing and / or normal false twist crimping are performed so that the number of entanglements is about 20 to 60 m, there is no problem.

There are no particular restrictions on the type of fiber B that is made of non-crimped fibers or crimps that do not substantially change the crimp rate when wet. Here, “the crimping rate does not change substantially when wet” means that the difference between the crimping rate DC during drying and the crimping rate HC when wet (DC—HC) is less than 0.5%. The crimp compression ratio difference (DC-HC) is more preferably 0 to 0.4%, and further preferably 0 to 0.3%.

Fiber B includes: Polyethylene terephthalate, Polymethylene terephthalate, Polybutylene terephthalate and other polyesters, Nylon 6, Polyamides such as Nylon 66, Polyolefins such as polyethylene and Polypropylene Suitable for clothing such as rubber, acrylic, para-type or meta-type polyamide, and modified synthetic fibers, natural fibers, regenerated fibers, semi-synthetic fibers, polyurethane elastic yarns, polyether ester elastic yarns, etc. Any fiber can be selected. Above all, when wet Polyethylene terephthalate, polypropylene terephthalate, polybutylene terephthalate with good dimensional stability and compatibility with the above-mentioned crimped fiber A (mixing, knitting, weaving, dyeing) In addition, a polyester fiber made of a modified polyester obtained by copolymerizing the copolymer component with them is preferable. In addition, there is no particular limitation on the single fiber fineness of the fiber B and the number of single fibers when it is used as a yarn or filament bundle, but it increases the water absorption of the resulting woven or knitted fabric and is In order to promote the development of irregularities, the single fiber fineness of the fiber B is preferably 0.1 to 5 dt ex, more preferably 0.5 to 2 dt ex, and The number of single fibers constituting the fiber B yarn or filament bundle is preferably 20 to 200, more preferably 30 to 100. In addition, fiber B-containing yarns or filament bundles are subjected to interlaced air processing and / or normal false twist crimping, and the number of constituent single fibers of 20 to 60 Zm is entangled with each other. May be.

The woven or knitted fabric of the present invention has the above-mentioned crimped fiber A in which the crimping rate decreases when wetted with water, and non-crimped fibers and / or crimps that do not substantially change the crimped rate when wetted with water. And fiber B made of fiber.

As the structure of the woven or knitted fabric, the woven or knitted structure and the number of layers are not particularly limited. For example, woven structures such as plain weave, twill, satin, and knitted structures such as tenshi, smooth, milling, kanoko, knitting yarn, denbi, half, etc. are preferably exemplified, but not limited thereto. The number of layers may be a single layer or a multilayer of two or more layers.

Here, the reason why unevenness appears in the woven or knitted fabric by water wetting is that the woven or knitted fabric has a portion that undergoes dimensional change (expands) due to water wetting and a portion that does not change in dimension even when wetted with water or has a small dimensional change. While the former changes in dimensions due to water wetting, the latter does not change in dimension or the amount of dimensional change is small. In order to effectively express unevenness by water wetting, it is important to appropriately arrange the crimped fiber A and the fiber B.

A preferred embodiment of the arrangement of the crimped fibers A and fibers B contained in the woven or knitted fabric of the present invention will be described below.

First, in the embodiment (1), it has one or more parts (Y part) composed only of the crimped fibers A, and one or more parts (Z part) composed only of the fibers B, The Z portion is continuously formed in the longitudinal direction and / or the weft direction, or the wale direction and / or the course direction.

In the above structure, the Y part has a larger dimensional change when wet than the Z part, and the Z part is continuously connected in the warp direction and the no or weft direction or the wale direction and the Z or course direction in the woven or knitted fabric. Therefore, the dimensional change of the entire woven or knitted fabric can be suppressed, and as a result, the Y part becomes a convex part and unevenness appears.

In Fig. 6 (A), the woven or knitted fabric 7 is composed of a Y portion 8 having a large dimensional change due to water wetting, and a Z portion 9 having little or no dimensional change due to water wetting. , Y portion 8 and Z portion 9 form a flat surface, but when it is wetted with water, each of Y portion 8 is woven as shown in FIG. 6 (B). The knitted fabric 7 extends to one side of the knitted fabric 7 to form a convex portion.

At this time, the Z portion is not particularly limited to a pattern that is continuously connected in the longitudinal direction and / or the weft direction or the wale direction and the no or course direction, but for example, a border pattern, a stripe pattern, a lattice pattern, etc. A diamond pattern pattern or a checkered pattern pattern shown schematically in FIGS.

There is no particular limitation on the area ratio between the Z part and the Y part. In order to enhance dimensional stability, the Z part: Y part area ratio is preferably 10: 90-90: 10, more preferably 20: 80-80: 20. In the woven or knitted fabric 7 shown in FIG. 7, the Y portions 8 are separated from each other by a Z portion 9. At that time, the area of the Y portion 81 is not particularly limited, but is preferably 0.01 to 4. O cm ² , more preferably within the range of 0.1 to 1.0 cm ² . It is. In this way, it is preferable to prevent stickiness between clothes and skin when sweating. On the other hand, the line width of the Z portion 11 is preferably in the range of 0.5 to 100 mm.

In the embodiment (2) of the woven or knitted fabric of the present invention, a portion (Z portion) composed only of the fiber B, and a portion (X portion) composed of the crimped fiber A and the fiber B The Z portion is continuously formed in the longitudinal direction and / or the weft direction or the wale direction and / or the course direction.

In such a structure, the X portion has a larger dimensional change when wet than the Z portion, and the Z portion is continuously in the warp direction and / or the weft direction or the wale direction and / or the course direction in the woven or knitted fabric. As a result, the dimensional change of the entire woven or knitted fabric can be suppressed, and as a result, the X portion becomes convex and irregularities appear. At that time, the pattern indicating the continuous state of the Z portion and the area ratio between them may be the same as those in the embodiment (1).

In the embodiment (3) of the woven or knitted fabric of the present invention, a part (X part) composed of the crimped fiber A and the fiber B and a part (Y part) composed only of the crimped fiber A In this woven or knitted fabric, the X part is continuously connected in the warp direction and / or the weft direction or the wale direction and / or the course direction.

In such a structure, the dimensional change is greater in the Y part than in the X part, and the X part is continuously connected in the warp direction and / or the weft direction or the wale direction and / or the course direction in the woven or knitted fabric. Have Therefore, the dimensional change of the entire woven or knitted fabric can be suppressed, and as a result, the Y part becomes a convex part and unevenness appears. At that time, the continuous pattern of the X portion and the area ratio of both may be the same as those in the embodiment (1).

In the embodiment (4) of the woven or knitted fabric of the present invention, the woven or knitted fabric is a portion composed of the crimped fiber A and the fiber B (portion X) and a portion composed only of the crimped fiber A. (Y portion) and a portion (Z portion) composed only of the fiber B, and the Z portion is continuously connected in the longitudinal direction and / or the weft direction or the wale direction and / or the course direction. .

In such a structure, the Z part has the least amount of dimensional change when wet with water compared to other parts (X part or Y part), and the Z part is continuously in the warp and / or weft direction in the woven or knitted fabric. As a result, the dimensional change of the entire woven or knitted fabric is suppressed, and as a result, the other part (X part or Y part) becomes a convex part and unevenness appears. At that time, the continuous pattern of the Z portion and the area ratio of the area of the Z portion and the total area of the other portions may be the same as those in the embodiment (1).

Next, in an embodiment (5) of the woven or knitted fabric of the present invention, the woven or knitted fabric is a multilayer woven or knitted fabric comprising two or more layers, and is composed of at least one layer (X layer) composed of the crimped fibers A and the fibers B. ) And at least one layer (Z layer) composed only of the fiber B, and the former layer and the latter layer are partially joined.

In such a structure, the dimensional change due to wetting is greater in the X layer than in the Z layer, and the portion of the X layer that is not connected to the Z layer forms a convex portion and develops irregularities.

In FIG. 4 (A), the woven or knitted fabric 4 is a multilayer body composed of an X layer 6 and a Z layer 5 and a connection layer 5 a that partially connects them. When this multi-layer knitted fabric is wetted with water, as shown in Fig. 4 (B), layer X 6 expands in the middle of the connection portion to form a convex portion 6 a, but the portion 6 b connected by the connection layer 5 a of the X layer 6 cannot expand. As a result, irregularities are formed on one side of the woven or knitted fabric.

As shown in Fig. 5, the 6 layers X of the woven or knitted fabric are connected to the Z layer (not shown) by the connecting layer (not shown in Fig. 5) by the connecting layer 6b. When not connected, the portion 6a is extended by water wetting and projecting outward to form a plurality of quadrangular convex portions distributed apart from each other, and the concave and convex portions are formed on one side of the multi-layer woven or knitted fabric Form. Alternatively, the unconnected portions may be formed in a lattice shape, and the connected portions may form a plurality of regions spaced from each other.

Next, in the embodiment (6) of the woven or knitted fabric of the present invention, the woven or knitted fabric is a multilayer woven or knitted fabric composed of two or more layers, and is composed of at least one layer composed of the crimped fibers A and the fibers B ( X layer) and at least one layer (Y layer) composed only of the crimped fiber A, and the X layer and the Y layer are partially joined.

In such a structure, Y has a larger dimensional change due to wetting than the X layer, and the portion of the Y layer that is not connected to the X layer forms a convex portion, resulting in unevenness.

Next, in the performance aspect (7) of the woven or knitted fabric of the present invention, the woven or knitted fabric is a multilayer woven or knitted fabric composed of two or more layers, and is composed of at least one layer (Y layer) composed only of HU self-crimped fibers A. It has at least one layer composed of HIJ fiber B only (Z layer), and Υ and Z layer are partially connected. In this structure, Y layer is more wet than Z layer. Large dimensional change <Y part of the Y layer that is not connected to Ζμ forms a bulge, resulting in ruggedness.

The woven or knitted fabric of the present invention can be easily obtained by the following production method. wear.

The method of the present invention is a method for producing a crimped fiber-containing woven or knitted fabric in which unevenness is manifested by water wetting, when the crimp is developed by heat treatment, and when the crimp is wetted by water. A crimped fiber A-forming fiber having a property of reducing the crimp rate, a fiber that does not develop crimp by the heat treatment, and a crimp that develops crimp by the heat treatment, but the crimp is wet with water The step of producing a precursor knitted fabric from at least one type of fiber B forming fiber selected from fibers having physical properties that do not substantially reduce the crimping rate by the heat treatment, and subjecting the precursor woven knitted fabric to heat treatment And a step of forming a woven or knitted fabric including the crimped fiber A and the fiber B.

In the method of the present invention, the crimped fiber A-forming fibers are different in water absorption and self-extension properties, and are joined in a side-by-side type, and a polyamide resin. Preferably, the polyester resin component in the uncrimped composite fiber includes a polyester resin having an intrinsic viscosity of 0.30 to 0.43, and the polyamide It is preferable that the resin component contains a polyamide resin having an intrinsic viscosity of 1.0 to 1.4.

In one example of the process of the present invention, a polyester having an intrinsic viscosity of 0.30 to 0.43 (measured at 35 using ortho-phenol as a solvent) and an intrinsic viscosity of 1.0 to 1.4 (m Melt-spinning into a side-by-side type using a polyamide with a solvent as a solvent (measured at 30 ° C). In that case, it is particularly preferable that the intrinsic viscosity of the polyester component is 0.43 or less. If the intrinsic viscosity of the polyester component is greater than 0.43, the viscosity of the polyester component increases. Since it becomes close to a single fiber, a woven or knitted fabric that can achieve the object of the present invention may not be obtained. Conversely, if the intrinsic viscosity of the polyester component is less than 0.30 The melt viscosity becomes too small, and the yarn-making property is lowered, and the generation of fluff is increased, which may reduce the quality and productivity.

As the spinneret used for melt spinning, the high-viscosity side and the low-viscosity discharge holes are separated as shown in Fig. 1 of JP-A-2000-144518. It is preferable to use a spinneret with a reduced discharge linear velocity (with a larger discharge cross-sectional area). Then, it is preferable to allow the molten polyester to pass through the high-viscosity side discharge holes and to pass through the molten polyamide through the low-viscosity side discharge holes to cool and solidify them while joining them. In this case, the weight ratio of the polyester component to the polyamide component is preferably 30:70 to 70:30, more preferably 40:60 to 60:40, as described above.

Further, after the melt composite spinning, another winding method in which the film is once wound and then stretched may be employed, or a straight stretching method in which a stretching heat treatment is performed without winding may be employed. At that time, normal conditions may be used as the spinning and drawing conditions. For example, in the case of the straight-roll method, after spinning at a spinning speed of about 1000-3500mZ, 100 ~! Drawing and winding at a temperature of 50 ° C. The draw ratio of the composite fiber obtained at the end is preferably 10 to 60% (more preferably 20 to 45%), and the tensile strength is preferably about 3.0 to 4.7 cN / dtex. What is necessary is just to select suitably.

In the method of the present invention, after the uncrimped conjugate fiber is subjected to crimp expression treatment in boiling water,

(1) Having a dry crimp rate DC in the range of 1.5 to 13% after standing for 24 hours in an environment of temperature 20 ° C and humidity 65% RH,

(2) Immediately after being immersed in water at a temperature of 20 for 2 hours, it has a water wet crimp rate HC in the range of 0.5 to 7.0%, and

(3) The difference (DC−HC) between the dry crimp rate DC and the water wet crimp rate HC is preferably 0.5% or more. The dry crimp rate DC is 2 to 6%. More preferably, the water wet crimp rate HC is more preferably 1 to 3%, and the difference between the dry crimp rate DC and the water wet crimp rate HC (DC—HC) is:! More preferably, it is ˜5%.

The dry crimp rate DC and the water wet crimp rate are measured by the following measuring methods.

Frame circumference: 1. Using a 125m rewinding frame, load: 49Z50mNX 9 X and turn it at a constant speed (0. lgix total denier) and roll it up at a constant speed. In the twisted double ring, the endorsement was put into boiling water with the initial load of 49 2500mNX20x 9 X Totaltex (2 mgX 20 X total denier) for 30 minutes. Then, dry it for 30 minutes in a dryer at 100 ° C, and then put it into the drying at 160 with the initial load applied and treat for 5 minutes. After this dry heat treatment, the initial load is removed and the sample is left in a temperature of 20 ° C and humidity of 65% RH for at least 24 hours. Then, the initial load and θδ ^ ΟιηΝΧΖθ X 9 x totartex (0.2gf x20x total denier) , Measure the total length: L0, immediately remove only the heavy load, and measure the total length: L1 after 1 minute of dehumidification. In addition, the bag was immersed in water at a temperature of 20 ° C for 2 hours with the initial load applied, taken out and sandwiched between a pair of filter papers (size 30cmX30cm), and 0. GgmNZcm ² (70mgf / After lightly wiping off the water for 5 seconds with a pressure of cm ² ), apply initial load and heavy load, measure total length: L 0 ', immediately remove only heavy load, and total length after 1 minute of depletion: Measure L 1 '. From the above measured values, the following formula is used to calculate the crimp ratio DC (%) during drying, HC (%) crimp when wet, and the difference in crimp ratio between dry and wet (DC—HC) (% ) Is calculated. The number of measurements n is 5, and the average value of the measured values is obtained.

Crimp rate during drying DC () = ((L 0-L 1) / L 0) X 100 Crimp rate when wet HC (%) = ((L 0 '-L 1') / L 0 ') X 100 In the crimped composite fiber A used in the present invention, when the dry crimp ratio DC is less than 1.5%, the amount of crimp change when wet with water becomes small, so that the unevenness may not appear. . On the other hand, when the dry crimp ratio DC is larger than 13%, the crimp is too strong, and the crimp does not easily change when wet with water, and there is a possibility that unevenness will not appear. In addition, even when the difference between the dry crimp rate DC and the water wet crimp rate HC (DC-HC) is less than 0.5%, there is a possibility that unevenness does not appear when wetted with water.

A woven or knitted fabric is knitted simultaneously using the composite fiber and a fiber B having a crimp that does not change substantially when crimped or not crimped, and is then subjected to a dyeing process. The latent crimp of the composite fiber is expressed by heat (referred to as a crimped fiber).

Here, when the knitted or knitted fabric is knitted, the woven or knitted structure is not particularly limited, and the above-described one can be appropriately selected.

The dyeing processing temperature is preferably 100 to 140 ° C, more preferably 110 to 135 ° C, and the dyeing time is within the range of 5 to 40 minutes when keeping the kneading temperature. It is preferable that By subjecting the woven or knitted fabric to a dyeing process under such conditions, the composite fiber develops crimps due to a difference in thermal shrinkage between the polyester component and the polyamide component. At that time, by selecting the aforementioned polymer as the polyester component and the polyamide component, a crimp structure in which the polyamide component is located inside the crimp is formed.

A woven or knitted fabric that has been dyed is usually subjected to a dry heat final set. At that time, the temperature of the drying final set is preferably 120 to 200, more preferably 140 to 180 ° C, and the final set time may be within a range of 1 to 3 minutes. preferable. If it is lower than the temperature of the dry heat final set, stains generated during the dyeing process are likely to remain, and the dimensional stability of the finished product will deteriorate. There is it. On the contrary, if the temperature of the dry heat final set is higher than 200, there is a risk that the crimp of the composite fiber developed during the dyeing process may be reduced, or the fiber may be hardened and the texture of the fabric may be hardened. .

In the woven or knitted fabric obtained by the method of the present invention, when the woven or knitted fabric is wetted by perspiration or rain, the apparent length of the crimped fiber A is extended due to a decrease in the amount of crimp. On the other hand, since the fiber B does not stretch even when wet, the overall dimensions of the woven or knitted fabric are fixed. As a result, due to water wetting, the portion containing the crimped fiber A forms a convex portion, and unevenness is developed. Such unevenness can reduce stickiness when wet. As a measure for reducing stickiness, the stickiness force is preferably 980 mN (l OOgr f) or less. Here, the sticky force means that a fabric having a length of 15 cm and a width of 6 cm is placed on a metal roller having a diameter of 8 cm as shown in FIG. 1 of JP-A-9-195172. Attach one end to a 'strain gauge and attach a clip weighing 98mN (l Og rf) to the other end of the fabric. Next, while rotating the metal roller at a surface speed of 7 cm / s ec, 0.5 cm ³ is injected between the metal nozzle and the fabric with a syringe, and the tension applied to the fabric is stressed. Measure with a strain gauge and use the maximum value as the stickiness.

In the woven or knitted fabric of the present invention, conventional water-absorbing processing, water-repellent processing, raising brushing, ultraviolet ray shielding or antibacterial agent, deodorant agent, insect repellent agent, phosphorescent agent, retroreflective agent, negative ion generator, etc. Various processings that give these functions may be applied.

Using the crimped fiber-containing woven or knitted fabric of the present invention, various fiber products can be produced.

The textile product of the present invention includes outer garments, sports garments, and inner garments. 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 and comparative examples, the following measurements were performed.

1. Intrinsic viscosity of polyester

Measured at 35 using orthochlorophenol as solvent.

2. Intrinsic viscosity of polyamide

m_cresol was used as a solvent and measured at a temperature of 30 ° C.

3. Tensile strength, elongation at break

After leaving the fiber sample in a room maintained at a constant temperature and temperature of 25 ° C and humidity of 60% RH for a whole day and night, set it to Tensilon, a Shimadzu Corporation tensile tester with a sample length of 100 mm, The sample was stretched at a speed, and the strength at break (cNZdtex) and elongation (%) were measured. The average value was obtained from n number 5.

4. Boiling water shrinkage

The boiling water shrinkage (%) was measured by the method specified in JIS L 1013-1998, 7.15. The average value was obtained from n number 3.

5. Crimp rate of composite fiber

Frame circumference: 1. Using a 125m rewind frame, load: 49 / 50mNX 9 X total tex (0. lgf x total denier) and roll at a constant speed. Make a twisted dovetail into a double ring shape and place it in boiling water under the initial load of 49 / 2500πιΝΧ20Χ 9 トータル Totaltex (2 mgx 20X total denier) for 30 minutes. After the treatment, it was dried in a dryer at 100 for 30 minutes, and then placed in 160 ° C dry heat for 5 minutes with the initial load applied. After the dry heat treatment, remove the initial load and leave it in a temperature 20 ° C, humidity 65% RH environment for 24 hours or more. Then, the initial load and 98Z50mNx20x 9 X A heavy load of tartex (0.2 gf x20x total denier) was applied, the heel length: L 0 was measured, only the heavy load was immediately removed, and the total length 1 minute after dewetting was measured: L 1. Furthermore, after this soak was immersed in water at a temperature of 20 hours with the initial load applied and removed for 2 hours, lightly wipe off the water with filter paper, and then the initial load and heavy load were applied, and the total length: L 0 ' We measured and immediately removed only the heavy load, and measured the total length of L 1 'after 1 minute of dewetting. From the above measured values, the following formula is used to calculate the dry crimp rate DC (%), the wet and wet crimp rate HC (%), and the difference between the dry and water wet crimp rate (DC—HC) (%). Calculated. The average value was obtained when n was 5.

Crimp rate during drying DC (%) = ((L 0-L 1) / L 0) X 100 Crimp rate when wet HC (%) = ((L 0 '-L 1') / L 0 ' ) X 100 6. Strong power

As shown in Fig. 1 of Japanese Patent Application Laid-Open No. 9-1952, a test piece of a test knitted fabric knitted with a length of 15 cni and a width of 6 cm is placed on a 8 mm diameter metal luff with a polished surface. One end was attached to a stress strain gauge, and a clip weighing 98 DIN (lOgri) was attached to the other end of the test piece. Next, while rotating the metal nozzle at a surface speed of 7 CDiZsec, 0.5 ml of water is gently injected between the metal roller and the fabric with a syringe, and the tension applied to the test piece at this time is stressed. The maximum value was taken as the sticking force. The number of n was 5, and the average value was obtained. The higher the measured value, the higher the stickiness.

7. Concavity and convexity change rate

The woven or knitted fabric was allowed to stand for 24 hours in an environment of temperature 20 ° C. and humidity 65% RH, and then a 30 cni × 30 cm small piece was cut from the woven or knitted fabric to prepare a test piece (n number = 5). Measure the thickness (TD) of the knitted / knitted fabric specimen when it was dried using an ultra-high precision laser displacement meter (Model LC-1400 manufactured by Kiens Co., Ltd.) in an environment with a temperature of 20 and a humidity of 65% RH. did. Then on this specimen After 1 ml of water was dropped with a spot, after 1 minute, the maximum thickness of the water drop was measured using an ultra-high precision laser displacement meter (Keyence Co., Model LC-2400). Thickness (TW). And the uneven | corrugated change rate was computed from the following formula. The number of n was 5, and the average value was obtained.

Concavity and convexity change rate (%) = ((TW-TD) / TD) X 100

Example 1

Nylon 6 with an intrinsic viscosity [7?] Of 1.3, and a modified polyethylene terephthalate copolymer with an intrinsic viscosity [] of 0.39 and 2.6 mol% of 5- sodium sulfoisophthalic acid copolymerized with Were melted at 270 ° C and 90 ° C, respectively, and a composite spinneret for side-by-side composite fibers similar to that shown in Fig. 1 of JP-A-2000-144518 was used. Extruded at a discharge amount of g Z min. to form a side-by-side composite fiber with a single yarn cross-sectional shape as shown in Fig. 1. After cooling, solidifying and applying oil, the yarn is fed at a speed of lOOOOmZ at a temperature of 60. A preheat roller is used for preheating, and then a heat treatment is performed between the preheating roller and a heating roller heated at a speed of 3050 mZ and at a temperature of 150, and wound to obtain a 84 dtex / 24 iil composite fiber bundle. It was. This composite fiber had a tensile strength of 3.4 cN / dtex and an elongation at break of 40%. In addition, the composite fiber bundle was subjected to boiling water treatment to develop crimp, and the crimp rate was measured. The dry crimp rate DC was 3.3%, the water wet crimp rate HC was 1.6%, and the difference between the dry crimp rate DC and the water wet crimp rate HC (DC-HC) was 1.7%.

The uncrimped composite fiber bundle (not boiled water treated and not crimped; untwisted yarn) and ordinary polyethylene terephthalate multifilament yarn (fiber B) with a boiling water shrinkage of 8% A circular knitted fabric with the knitting structure shown in Table 1 was knitted using 84dtexZ72fil and a 28-gauge double circular knitting machine.

[註]

c :: Cylinder side

D :: Dial side

○:: Dial side:: 卜

X ： Cylinder side

¥ :: Cylinder side evening

a: Uncrimped composite yarn

b: Polyester multifilament yarn The obtained circular knitted fabric was dyed and processed at a temperature of 130 at a keep time of 15 minutes to reveal the latent crimping performance of the uncrimped composite fiber yarn, and the crimped fiber A was obtained. In the dyeing process, a water-absorbing processing agent (polyethylene terephthalate-to-polyethylene glycol copolymer) is treated at the rate of 2 ml / 1 with respect to the dyeing liquid, and the same bath treatment is performed during the dyeing process, so that the knitted fabric absorbs water A processing agent was applied. The circular knitted fabric was subjected to a dry heat final set at a temperature of 160 for 1 minute.

In this circular knitted fabric, the cross-section in the thickness direction is as shown in Fig. 4. One layer (Z layer) is composed only of fibers B, and the other layer (Y layer) is composed only of crimped fibers A. And Y layer were partly joined by polyester fiber B yarn.

The surface of the knitted fabric viewed from the Y layer side is a square section where the Y layer and the Z layer are connected in a lattice shape as shown in Fig. 5. The convex portion 6 b became a convex portion and unevenness was developed.

In this knitted fabric, the unevenness change rate when dried and wet was 15%, and the stickiness was 84ιηΝΖ (80 gf), and there was little stickiness when wet with water, which was practically satisfactory.

Example 2

Using a 28-gauge tricot knitting machine, fully set the same composite fiber (Fiber A) as used in Example 1 for the back 筏, and the middle 筏 used in Example 1 The same polyethylene terephthalate multifilament yarn (Fiber B) is set in 2 in lOout, and the same polyethylene terephthalate multifilament yarn used in Example 1 is used for Freon (registered trademark). (Fiber B) is set at lOout 2 in, knock 10-12, middle 10-12-12-23-45-43-32-21, front (registered trademark) 45-43 — 32— 21— 10— 12— 23— 34 knitting structure, on-machine course 60 kn . Next, this knitted fabric was dyed and finished in the same manner as in Example 1.

In the knitted fabric, the dry cross section in the thickness direction is composed of a portion (Y portion) composed only of the crimped fiber A, a crimped fiber A, and a fiber B, as shown in FIG. 6 (A). It consisted of part (X part).

As shown in Fig. 7, the knitted surface is continuously connected to the entire knitted fabric in a diamond pattern, and when wet, the square part (Y part) surrounded by this diamond pattern has a convex part. As a result, irregularities appeared.

In this knitted fabric, the unevenness change rate during drying and wetting was 25%, the stickiness was 686 mN (70 gf), and there was little stickiness when wet, which was practically satisfactory.

Comparative Example 1

In the same manner as in Example 1, a circular knitted product (including a water absorbing agent) product was produced. However, the same composite fiber as that used in Example 1 was used instead of the polyethylene terephthalate multifilament yarn (fiber B).

The obtained knitted fabric was unsatisfactory in practical use because the unevenness change rate during drying and wetting was 2% and the stickiness was 1470πιΝ (150gf), and the stickiness during wetting was large. Industrial applicability

According to the present invention, unevenness is reversibly developed on the surface of the woven or knitted fabric when wet, and the woven or knitted fabric in which the unevenness is reduced when dried, and the wear, inner wear, sports wear using the woven or knitted fabric, and the like. When these are used, the stickiness between the skin and clothes when sweating can be reduced.

Claims

1. Selected from yarns containing crimped fibers (A) whose crimping rate decreases by wetting with water, non-crimped fibers and crimped fibers whose crimping rate does not change substantially by wetting with water A woven or knitted fabric including a yarn containing at least one type of fiber B,

Contract

Unevenness change rate (%) = ((TW-TD range) / TD) X 100 is 5% or more, a crimped fiber-containing woven or knitted fabric that exhibits unevenness due to water wetting.

2. The crimped fiber A is composed of a polyester fiber resin component and a polyamide resin component, which are different from each other in water supply and self-extension properties, and are bonded in a side-by-side type, and The crimped fiber-containing woven or knitted fabric that exhibits unevenness by water wetting according to claim 1, which is selected from crimped composite fibers having crimps formed by expressing the latent crimping performance.

3. The polyester fiber resin component is based on the content of the acid component, and 2.0 to 4.5 mol% of 5-sodiumsulfosulfuric acid is I.0 to 4.5 mol%. 3. A crimped fiber-containing woven or knitted fabric that is made of a copolymerized modified polyethylene terephthalate resin and exhibits irregularities when wetted with water according to claim 2.

4. The crimped fiber-containing woven or knitted fabric that exhibits unevenness by water wetting according to claim 1, wherein the yarn containing the crimped fiber A has a burn number of O to 300 T / m.

5. The crimped fiber-containing woven or knitted fabric in which the fiber B is formed of a polyester resin, and unevenness is manifested by water wetting according to the first aspect of the request.

6. The woven or knitted fabric has one or more portions Y composed only of the crimped fibers A and one or more portions Z composed only of the front el fibers (B). The part is formed continuously in at least ¾ 1 direction selected from the warp and weft direction of the HIJ self-woven knit, or in at least <1 direction selected from the course and wale direction. A crimped fiber-containing woven or knitted fabric that exhibits irregularities when wetted with water as described in item 1.

7. The woven or knitted fabric is composed of one or more portions Z composed only of the fibers B, the fibers (A), and the fibers B.

And at least one direction selected from the warp and weft directions of the knitted or knitted fabric, or at least one direction selected from the course and wale directions. The crimped fiber-containing woven or knitted fabric that is formed as described in claim 1 and that exhibits irregularities by water wetting.

8. The woven or knitted fabric has at least one portion X composed of the crimped fiber A and the fiber B and at least one portion Y composed only of the crimped fiber A. The X portion is continuously formed in at least one direction selected from the warp and weft directions of the woven or knitted fabric, or at least one direction selected from the course and wale directions. A woven or knitted fabric containing crimped fibers that develops concave and convex shapes by water wetting as set forth in item 1 of the range.

9. The woven or knitted fabric has at least one portion X composed of the crimped fibers A and the fibers B, and at least one portion Y composed only of the crimped fibers A; Formed only by the fiber B At least one portion z, and the Z portion is at least one direction selected from the warp and weft directions of the woven or knitted fabric, or at least selected from the course and wale directions. 2. The crimped fiber-containing woven or knitted fabric that is formed continuously in one direction and that exhibits irregularities by water wetting according to claim 1.

10. The knitted or knitted fabric has a multilayer woven or knitted structure of two or more layers, and at least one layer in the multilayered structure is composed of the crimped fibers A and fibers B, and the other at least 1 The water wetting according to claim 1, wherein the layer is composed of only the fiber B, and the fiber A and B-containing layer and the fiber B-containing layer are partially connected to each other. A woven or knitted fabric containing crimped fibers that exhibits unevenness due to the above. ,

1 1. The woven or knitted fabric has a multilayer woven or knitted structure of two or more layers, and at least one layer in the multilayer structure is constituted by the crimped fibers A and fibers B, and the other at least 1 The layer according to claim 1, wherein the layer is composed of only the crimped fiber A, and the fibers A and B-containing layer and the crimped fiber-containing layer are partially connected to each other. A crimped fiber-containing woven or knitted fabric that exhibits unevenness by water-wetting as described.

12. The woven or knitted fabric has a multilayer woven or knitted structure of two or more layers, and at least one layer in the multilayer structure is composed of only the crimped fibers A, and at least one other layer is the The water-wetting according to claim 1, wherein the crimped fiber B is composed only of the crimped fiber B, and the crimped fiber-containing layer and the fiber B-containing layer are partially connected to each other. A woven or knitted fabric containing crimped fibers.

13. A method for producing a crimped fiber-containing woven or knitted fabric in which unevenness is manifested by wetting with water according to any one of claims 1 to 12, wherein the crimp is expressed by heat treatment. This crimp has the property of reducing its crimp rate when wetted with water. The fiber for forming the fiber A, the fiber that does not express crimp by the heat treatment, and the crimp that expresses crimp by the heat treatment, but the crimp does not substantially reduce the crimp rate by wetting with water. A step of producing a precursor knitted fabric from fibers for forming at least one kind of fiber B selected from fibers having physical properties, and subjecting the precursor knitted fabric to a heat treatment, the crimped fibers A and And a step of forming a woven or knitted fabric containing the fiber B.

14. The crimped fiber A-forming fiber is different from each other in water absorption and self-extension properties, and comprises a polyester resin component bonded in a side-by-side type and a polyamide resin component. The method for producing a crimped fiber-containing woven or knitted fabric according to claim 13, which is selected from crimped composite fibers.

15. The polyester resin component in the uncrimped conjugate fiber includes a polyester resin having an intrinsic viscosity of 0.30 to 0.43, and the polyamide resin component is 1.0 to 1.4 of an intrinsic viscosity. 15. A method for producing a crimped fiber-containing woven or knitted fabric according to claim 14, comprising a polyamide resin having the following characteristics.

16. After the uncrimped composite fiber has been crimped in boiling water,

(1) After standing for 24 hours in an environment of temperature 20 ° C and humidity 65% RH, it has a crimping ratio DC in the range of 1.5 to 13%,

(2) Immediately after being immersed in water at a temperature of 20 ° C. for 2 hours, it has a crimp ratio HC in the range of 0.5 to 7.0%, and

(3) The difference between the dry crimp rate DC and the water wet crimp rate HC (DC—HC) force is 0.5% or more.

A method for producing a crimped fiber-containing woven or knitted fabric according to claim 13.

17. A textile product comprising the crimped fiber-containing woven or knitted fabric according to any one of claims 1 to 12.

18. Choose from outer clothing, sports clothing and inner clothing The textile product according to claim 17