JP2008303498A - Meshy cloth and clothing using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a meshy cloth controllable in air permeability in its dry state and wet state in such a way that its meshes are present as narrow holes in its dry state while its meshes are expanded in the width direction in its wet state, and to provide clothing using the same. <P>SOLUTION: The meshy cloth (1, 10) includes fiber yarns A which are elongated in a wet state and fiber yarns B which are not elongated even if in a wet state or is lower in wet extensibility than the fiber yarns A. In this meshy cloth, portions (2) constituted of the fiber yarns B are arranged longitudinally, transversely, slantingly or in a zigzag fashion; while portions (3) constituted of the fiber yarns A are arranged planarly in between the portions (2), wherein there are mesh holes (4) in the planar portions, and the mesh holes (4) have such reversibility as to expand in the width direction in a wet state and return to the original state in a dry state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a mesh fabric whose air permeability can be reversibly changed by moisture and a garment using the mesh fabric.

  Conventionally, mesh cloth has been used for clothes such as underwear and T-shirts used in daily life and clothes worn in sports in order to prevent dampness and improve air permeability. The fabric having a mesh (hole) is directly exchanged with the outside air, has good air permeability, and can improve ventilation or air circulation in clothing. For example, Patent Document 1 has been proposed as a clothing using a mesh fabric.

  However, a simple mesh fabric has a problem that it is transparent, and there is a problem that when it is not perspiring, it is too breathable and cannot cope with changes in the outside air such as cold.

  There has also been proposed a reversible breathable fabric that uses a water-swellable composite fiber yarn in any layer of the multilayer structure fabric to increase the difference in air permeability between dry and wet.

However, when the water-swellable composite fiber yarn is used in any layer of the multi-layer structure fabric, the entire layer swells, causing not only unfavorable clothing, but also hindering the movement of the human body. It was. It was also difficult to adjust the air permeability when dry and wet.
JP 2006-249610 A Japanese Patent No. 3834018

  In the present invention, in order to solve the above-described conventional problems, the mesh hole is present as an elongated hole when dried, and when the mesh is wet, the mesh hole expands in the width direction so that it moves like a plant pore. Provided are a mesh fabric capable of adjusting air permeability when dry and wet, and a clothing using the mesh fabric.

  The mesh fabric of the present invention is a fabric comprising a fiber yarn A that elongates when wet and a fiber yarn B that does not elongate when wet or has a relatively low wet elongation rate compared to the fiber yarn A, The portion constituted by the yarn B is arranged in the vertical direction, the horizontal direction, the oblique direction or the zigzag shape, and the portion constituted by the fiber yarn A is in a plane shape between the portions constituted by the fiber yarn B. The mesh portion is disposed and has a mesh hole in the planar portion, and the mesh hole has a reversibility that expands in the width direction when wet and returns to the original state when dry.

  The garment of the present invention is characterized in that the mesh fabric is disposed at least in a portion of the human body where sweating is high.

  The mesh fabric and garment of the present invention exist as elongated holes in the longitudinal direction, the lateral direction, the oblique direction or the zigzag shape in which the mesh hole is composed of the fiber yarn B when dried, and the mesh hole in the width direction when wet. It expands and moves like a stomata of a plant, and the air permeability can be reversibly changed by moisture. Thereby, the air permeability at the time of drying and wetness can be adjusted.

  The mesh fabric of the present invention includes a fiber yarn A that elongates when wet, and a fiber yarn B that does not elongate when wet or has a relatively low wet elongation rate compared to the fiber yarn A.

  As the fiber yarn A that elongates when wet, for example, as disclosed in Japanese Patent No. 3834018, a cellulose acetate having an average substitution degree of less than 2.6 and a cellulose acetate having an average substitution degree of 2.76 or more are side-by-side type. A fiber yarn obtained by performing composite spinning, treating the composite fiber with an alkali, and saponifying the acetyl group of cellulose acetate having an average substitution degree of less than 2.6 to a hydroxyl group can be used. This yarn is sold, for example, under the trade name “Cool Vent” manufactured by Mitsubishi Rayon. As another example, there is a fiber yarn containing polyester copolymerized with 5-sodium sulfoisophthalic acid as one component of a composite fiber as disclosed in JP-A-2003-41462.

  As the fiber yarn B that does not stretch even when wet or has a relatively low wet elongation rate compared to the fiber yarn A, ordinary polyester (polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, etc.) fiber yarn, polyamide fiber There are yarn, acetate fiber yarn, cotton fiber yarn, rayon fiber yarn, ethylene vinyl alcohol fiber yarn and the like. Of these, polyethylene terephthalate (PET) fiber yarns that are thermoplastic, have good heat setting properties, and are hydrophobic are preferred. In order to add a refreshing feeling, an ethylene vinyl alcohol fiber yarn (for example, “Sophistica” manufactured by Kuraray Co., Ltd.) that is thermoplastic and has good heat setting properties is preferable.

  In the mesh fabric of the present invention, the fabric portion constituted by the fiber yarns B is arranged in the longitudinal direction, the lateral direction, the oblique direction, or the zigzag shape. The width of the fabric portion constituted by the fiber yarn B is preferably in the range of 0.3 to 15 mm. If the width | variety of the fabric part comprised with the fiber yarn B is the range of 0.3-15 mm, shape stability and breathability can be hold | maintained.

  Further, the pitch of the fabric portion constituted by the fiber yarn B (the width of the fabric portion constituted by the fiber yarn A) is preferably in the range of 1 to 15 mm. If the width of the fabric portion composed of the fiber yarn A is in the range of 1 to 15 mm, air permeability and shape stability can be maintained.

  When the fiber yarn B is used vertically or obliquely, the height does not increase and the appearance does not deteriorate.

  Wet by arranging fabric portions composed of fiber yarns B that do not stretch even when wet or have a relatively low wet elongation rate than the fiber yarn A in the longitudinal direction, the lateral direction, the diagonal direction, or the zigzag shape. When the fabric portion composed of the fiber yarn A that sometimes stretches is wet, the fabric portion composed of the fiber yarn B does not stretch or the stretch does not stretch, so the fabric portion composed of the fiber yarn A Extends in the width direction. Due to this phenomenon, the mesh holes expand in the width direction when wet.

  The mesh holes are elongated and are arranged between the portions formed by the fiber yarns B in the vertical direction, the horizontal direction, or the diagonal direction with respect to the fabric direction. It is preferable to arrange in the direction.

  The portion constituted by the fiber yarn A is arranged in a plane between the portions constituted by the fiber yarn B. When drying (including the drying equilibrium), the planar portion has elongated mesh holes. . Therefore, the air permeability at the time of drying (including the time of drying equilibrium) is lower than that at the time of wetting. This mesh hole expands in a direction (width direction) perpendicular to the longitudinal direction of the elongated mesh hole when wet, and has a reversibility that returns to the original state when dry. The length of the elongated mesh hole during the drying is preferably 0.3 to 5 mm and the width is preferably 0.1 to 1 mm. Moreover, the length of the mesh hole expanded in the width direction when wet is preferably 0.3 to 5 mm and the width is preferably 0.2 to 1.6 mm. The maximum width of the mesh pores when wet / the width of the mesh pores during drying equilibrium is preferably about 1.1 to 1.6 times.

The mesh fabric, the temperature 20 ° C., towards the air permeability of the wet in water content 50% by weight, temperature 20 ° C., is higher 50ml / cm ² · s or more than the air permeability of the relative humidity of 65% of the dry equilibrium preferable. If it is this range, the air permeability at the time of drying and wetness can be adjusted more favorably.

  The fiber yarn A that elongates when wet is preferably a composite fiber yarn having heat setting properties. When having a heat setting property, a mesh hole having an elongated shape can be formed at the time of drying by pulling 5 to 20% in the longitudinal direction of the mesh hole using a tenter or the like when finishing the dough.

  The fiber yarn A that elongates when wet is preferably a crimped yarn. The crimped yarn has a reversibility that elongates when wet and returns to a crimped state when dry.

  The mesh fabric is preferably a single layer knitted fabric. A single-layer knitted fabric can efficiently produce a knitted fabric having mesh holes, and also has a light weight per unit area (weight per unit area), and is suitable for use on a portion of clothing where sweating is high. As the knitting, warp knitting such as tricot and raschel, and knit knitting such as circular knitting are preferable. In particular, warp knitting such as tricot and raschel is preferable.

In the present invention, the preferred basis weight of the mesh fabric is 100 g / m ² or more and less than 200 g / m ² . This is because a thin fabric is preferable because it is used for a portion of clothing where sweat is high.

  The mesh fabric is arranged at least on a portion of the human body where sweating is high to form clothing. For example, it may be used for all sports shirts, T-shirts, underwear shirts, briefs, general shirts, etc., or may be used for a part of the side, back, etc. When used for all shirts or a part of the side, back, etc., it is preferable to sew so that the fabric portion constituted by the fiber yarn B is in the longitudinal direction of the human body.

  Next, it demonstrates using drawing. FIG. 1A is a plan view of a mesh fabric at the time of drying in one embodiment of the present invention, and FIG. 1B is a plan view of the mesh fabric at the time of wetness. In FIG. 1A, the mesh fabric 1 at the time of drying is composed of a stripe-shaped non-extension part 2 and an extension part 3 therebetween, and the extension part 3 is formed with elongated mesh holes 4 along the stripe direction. a indicates the width of the non-extension part 2, and b indicates the width of the extension part 3.

  When sweating and becoming wet, the wet mesh fabric 10 expands and expands to the widths b to b 'of the extension 3' as shown in FIG. 1B. The mesh hole 4 ′ when wet expands in the width direction according to the expansion of the width of the extending portion 3 ′. The width a of the non-extension part 2 does not change even when wet.

  When returning to the drying equilibrium, the original state shown in FIG. 1A is restored.

  FIG. 5 shows a pattern in another embodiment of the present invention. The mesh fabric 11 at the time of drying is composed of a non-extension part 12 of the ground tissue part and an extension part 13 therebetween. The extending portions 13 have a diamond shape and are arranged intermittently in an oblique direction. The elongated portion 13 is formed with an elongated mesh hole 14 along the vertical direction. The mesh holes 14 also expand in the width direction when wet.

  FIG. 6 shows a pattern in another embodiment of the present invention. The difference from FIG. 5 is that the edge of the knitted fabric constituting the mesh hole 14 is also continuously formed in the elongated portion 13. Since the others are the same, the same parts as those in FIG.

  FIG. 7 shows a pattern in another embodiment of the present invention. The non-extension part 12 of a ground tissue part is arrange | positioned at zigzag shape, and the extension part 13 is comprised among them. The elongated portion 13 is formed with elongated mesh holes 14 along the vertical direction, and the mesh holes 14 also expand in the width direction when wet.

  Hereinafter, the present invention will be described more specifically with reference to examples. Note that the present invention is not limited to the following examples.

Example 1
(1) Yarn used As a fiber yarn that elongates when wet, a yarn obtained by covering a polyester raw yarn 33 dtex (24 filaments) with a single product of 40 dtex (16 filaments, acetate fiber) manufactured by Mitsubishi Rayon Co., Ltd. was used.
B. Polyethylene terephthalate (PET) multifilament processed yarn 84dtex (24 filaments) was used as the non-stretched fiber yarn.
(2) Knitted fabric configuration The knitted fabric was a tricot (warp knitting) and had a 28 gauge, 124 inch wide width. The knitting structure diagram is as shown in FIG. 2, and non-stretched fiber yarns were supplied to the front (F), and stretched fiber yarns were supplied to the main (M) and back (B). As for how to assemble the chain, the front (F) was 1-0 / 2-3, and the main (M) and back (B) were both 16c. The usage rate of the non-stretched fiber yarn was 4.7%, and the usage rate of the extended fiber yarn was 95.3%. The number of courses on the knitting machine was 45 / inch and the number of wales was 28 / inch.
(3) Dyeing and finishing The obtained tricot knitted fabric was dyed according to a conventional method. Then, the heat set finishing was performed along the longitudinal direction (the oval direction of the mesh holes). At this time, the heat set temperature was 170 ° C., and the time was 150 seconds. The obtained tricot knitted fabric had a number of courses of 42 / inch, a number of wales of 58 / inch, and a basis weight of 170 g / m ² . Further, the obtained tricot knitted fabric is as shown in FIG. 3, the stripe width of the non-extension part 2 is about 2 mm, the width of the extension part 3 at the time of drying equilibrium is about 11 mm, and the diameter of the ellipse of the mesh hole 4 is The diameter of the short circle was about 0.5 mm.
(4) Condition when liquid water was applied and wetted and air permeability measurement test The air permeability at the time of drying equilibrium of the obtained tricot knitted fabric was 165 ml / cm ² · s. This knitted fabric was immersed in water for 24 hours, dehydrated, dried, and observed at 20 ° C. and a relative humidity of 65% with a moisture content of 50% by weight. As shown in FIGS. 3 expanded about 1.4 times in the width direction, and the mesh hole 4 also expanded in the width direction accordingly. The air permeability in this state was 288 ml / cm ² · s. After this measurement, the air permeability after 30 seconds was 241 ml / cm ² · s. Furthermore, when it returned to the time of drying equilibrium, air permeability was 165 ml / cm < ² > * s, and it has confirmed that it was reversible. The above results are summarized in Table 1 and FIG.
(5) Wear test The tricot knitted fabric obtained in Example 1 was sewn on the side part where the sweat of the sports shirt had a lot of sweat and the back part so that the stripe was in the longitudinal direction of the human body. When running with this shirt, the mesh hole was closed before sweating, and when sweated and wet, the mesh hole opened, air permeability increased, and functionality and comfort were good It could be confirmed.

(Example 2)
In Example 1, the tricot knitted fabric is the same as in Example 1 except that in the tensile heat set finishing process, the tension is slightly loosened and the number of courses of the tricot knitted fabric is 46 / inch and the number of wales is 51 / inch. Formed. The results of the air permeability test (described in Example 1) of this knitted fabric are summarized in Table 1 and FIG.

  The obtained knitted fabric was sewed on a sports shirt in the same manner as in Example 1 and was subjected to a wear test. The mesh hole was closed before sweating, and the mesh hole was opened and became breathable when sweated. It was also confirmed that the functionality and comfort were good.

(Example 3)
The non-stretched fiber of Example 1 is replaced with PET and a filament fiber yarn made of ethylene vinyl alcohol (Kuraray's trade name “Sophista”, fineness: 75 denier) is used. A tricot knitted fabric was formed in the same manner as in Example 1 except that the length was 2 mm, the pitch was 10 mm, the length of the mesh hole at the time of drying was 1.5 mm, and the width was 0.5 mm. The results of the air permeability test (described in Example 1) of this knitted fabric are summarized in Table 1 and FIG.

  The obtained knitted fabric was sewed on a sports shirt in the same manner as in Example 1 and was subjected to a wear test. The mesh hole was closed before sweating, and the mesh hole was opened and became breathable when sweated. It was also confirmed that the functionality and comfort were good. Moreover, compared with Example 1, there was a further refreshing feeling.

FIG. 1A is a plan view of a mesh fabric at the time of drying in one embodiment of the present invention, and FIG. 1B is a plan view of the mesh fabric at the time of wetness. FIG. 2 is a knitting structure diagram of the mesh fabric in Example 1 of the present invention. FIG. 3 is a plan view of the mesh fabric in Example 1 of the present invention. FIG. 4 is a rough view of the air permeability measurement data of the mesh fabric in Example 1 of the present invention. FIG. 5 is a plan view of a mesh fabric according to another embodiment of the present invention. FIG. 6 is a plan view of a mesh fabric according to another embodiment of the present invention. FIG. 7 is a plan view of a mesh fabric according to another embodiment of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,11 Mesh fabric 1 'when dried Mesh fabric 2, when wet 212 Unstretched portion 3,13 Expanded portion 3' when dried Stretched portion 4,14 when wet Mesh hole 4 'when dried Mesh when wet Hole F Front M Main B Back

Claims (6)

A fabric comprising a fiber yarn A that elongates when wet and a fiber yarn B that does not elongate when wet or has a relatively low wet elongation rate compared to the fiber yarn A,
The portion composed of the fiber yarn B is arranged in a longitudinal direction, a lateral direction, an oblique direction or a zigzag shape,
The portion composed of the fiber yarn A is arranged in a plane between the portions composed of the fiber yarn B, and the planar portion has a mesh hole,
The mesh fabric has reversibility that expands in the width direction when wet and returns to the original state when dry. The mesh fabric, the temperature 20 ° C., towards the air permeability of the wet in water content 50% by weight, temperature ^{20 ℃, 50ml / cm 2 ·} s or more higher claim than air permeability at a relative humidity of 65% dry equilibrium The mesh fabric according to 1.   The mesh fabric according to claim 1, wherein the fiber yarn A that elongates when wet is a composite fiber yarn having heat setting properties.   The mesh fabric according to claim 1 or 3, wherein the fiber yarn A that elongates when wet is a crimped yarn.   The mesh fabric according to any one of claims 1 to 4, wherein the mesh fabric is a single-layer knitted fabric.   A garment in which the mesh fabric according to any one of claims 1 to 5 is disposed at least on a portion of a human body where sweating is high.

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