JP7189575B2 - fabric - Google Patents

Description

The present invention relates to textiles.

Conventionally, in order to obtain a cool feeling in the summer and suppress the feeling of stuffiness due to perspiration during exercise, various attempts have been made to make it easier to breathe, such as using materials that are as thin and open as possible and providing ventilation parts. It's here. As such a garment, a mosai fabric incorporating the ingenuity of fabric design has been proposed. These fabrics are light and have good breathability, but because the amount of fiber used is small and there are many voids, in clothing that is worn directly on the skin such as shirts and blouses, underwear and skin are easy to see through and are resistant to see-through. However, it has poor shape-retaining properties and easily loses its shape, so a satisfactory product has not been obtained.

As a prior art of this kind, after fabricating a fabric with warp and weft including yarns that dissolve in alkali, the fabric is immersed in an alkaline solution to form holes by dissolving the alkali-soluble yarn in the alkaline solution. , woven fabrics that improve breathability have been proposed (Patent Documents 1 and 2). Although this woven fabric has good breathability, it is not suitable for harsh applications such as workwear because the holes reduce tear strength and slip resistance. In addition, since a process for dissolving alkali-soluble threads is required, the use of alkaline solutions increases manufacturing costs (process costs + chemical costs). ) load rises.

In addition, a fabric using hollow fibers having micropores has been proposed in order to suppress the feeling of stuffiness caused by perspiration during exercise (Patent Document 3). Although this woven fabric can suppress the feeling of stuffiness to some extent when worn, it has a windproof property, so it is inferior in breathability, and there is a problem in terms of coolness in summer.

Furthermore, a mesh sheet (Patent Document 4) made of a core-sheath composite fiber in which the polymer in the sheath has a lower melting point than the polymer in the core, or a warp non-arranged section in which warps are not arranged on either the left or right side is provided. , a mesh fabric with patterned gauze sections at both ends (Patent Document 5) has been proposed. These mesh fabrics have good air permeability, but because of their mesh structure, they are not suitable for harsh apparel applications, and have problems in terms of shape retention in applications where repeated washing is assumed.

JP 2019-44317 A Patent No. 5896059 JP-A-10-130975 Japanese Patent Application Laid-Open No. 2008-1995 Japanese Patent Application Laid-Open No. 2011-231420

The present invention is an improvement in view of the above-mentioned problems of the prior art, and has sufficient air permeability and good mechanical properties such as tear strength, and can be applied to various clothing applications. It is intended to provide a woven fabric with excellent durability that can be used.

In order to solve the above-mentioned problems, the fabric of the first invention of the present application has four sections composed of warp and weft yarns with different single yarn fineness. Assuming that the thin warp is W2, the weft with a large single yarn fineness is F1, and the weft with a fine single yarn fineness is F2, a section A consisting of W1 and F1, a section B consisting of W2 and F1, and a section consisting of W1 and F2 C and a section D consisting of W2 and F2, section A is adjacent to section B and section C, section D is adjacent to section C and section B, and W1 and W2 and F1 and F2 are predetermined Characterized by being repeated in a cycle.

The second invention of the present application is characterized in that, in the first invention of the present application, W1 and W2 are repeated once/2.54 cm or more, and F1 and F2 are repeated twice/2.54 cm or more. .

The third invention of the present application is that in the first or second invention of the present application, when the total area of Section A, Section B, Section C and Section D is 100%, Section A is 55% or more and Section D is 10% It is characterized by the following.

The fourth invention of the present application is characterized in that in any one of the first to third inventions, the cover factor of section A is 1500 or more and the cover factor of section D is 1350 or less.

The fifth invention of the present application is any one of the first to fourth inventions of the present application, wherein the single yarn fineness of W1 is 33 dteX or more and 585 dteX or less, the single yarn fineness of W2 is 11 dteX or more and 84 dteX or less, and the single yarn fineness of F1 is is 33 dteX or more and 585 dteX or less, and the single yarn fineness of F2 is 11 dteX or more and 84 dteX or less.

The sixth invention of the present application is characterized in that in any one of the first to fifth inventions of the present application, the air permeability measured by JIS L 1096:2010 A method (Frazier method) is 30 cm ³ /cm ² ·sec or more. do.

The seventh invention of the present application is characterized in that, in any one of the first to sixth inventions of the present application, the tear strength measured by the JIS L 1096:2010 D method (pendulum method) is 8N or more.

The eighth invention of the present application is characterized in that, in any one of the first to seventh inventions of the present application, the slippage resistance measured by the JIS L 1096:2010 seam slippage method (method B) is 1.5 mm or less.

According to the first invention, the second invention, the third invention, the fourth invention, and the fifth invention of the present application, a high-density section A consisting of warp and weft yarns with large single yarn fineness and warp and single yarn with fine single yarn fineness A medium-density section B consisting of wefts with a large fineness, a medium-density section C consisting of a warp with a large fineness and a weft with a small fineness, and a low-density section D consisting of a warp and a weft with a small fineness. By repeating the warp and weft in a predetermined cycle, while maintaining the same breathability as the perforated fabric, the density of adjacent sections is different, improving the flexibility of the woven structure and tearing Mechanical properties such as strength are improved, and the mechanical properties are not impaired even after repeated washing and the like.

According to the sixth invention of the present application, it is possible to provide a woven fabric with excellent refreshing feeling.

According to the seventh invention and the eighth invention of the present application, it is possible to provide a woven fabric having excellent durability.

FIG. 1 is a schematic configuration diagram of the woven fabric of the present invention. FIG. 2 is a diagram showing an example of the texture of the woven fabric of the present invention. FIG. 3 is a diagram showing another example of the weave of the woven fabric of the present invention.

Embodiments of the present invention will be described below with reference to the accompanying drawings, but various modifications and modifications are possible without departing from the technical scope of the present invention.

The fibers constituting the woven fabric of the present invention may be synthetic fibers or natural fibers, and are not particularly limited. Among them, polyester fibers can be preferably used because they are inexpensive. Polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, and the like can be preferably used as the material polymer for the polyester fiber. Conjugated yarns thereof can also be preferably used. In addition to polyester fibers, polyamides such as nylon 6 and nylon 6,6, synthetic fibers such as polyacrylic and polypropylene, semi-synthetic fibers such as acetate and rayon, and natural fibers such as wool, silk, cotton, and linen are used. be able to.

The woven fabric of the present invention is lattice-like and has a schematic configuration as shown in FIG. Among the raw yarns constituting the grid fabric, if the warp with a large single yarn fineness is W1, the warp with a fine single yarn fineness is W2, the weft with a large single yarn fineness is F1, and the weft with a fine single yarn fineness is F2, It consists of a section A consisting of W1 and F1, a section B consisting of W2 and F1, a section C consisting of W1 and F2, and a section D consisting of W2 and F2. Section A is adjacent to Section B and Section C, and Section D is adjacent to Section C and Section B.

2 and 3 are diagrams showing an example of the weave of the woven fabric of the present invention. In the weave pattern diagram, the crossing points where the warp appears on the front side are shown in black, and the crossing points where the weft appears on the front side are shown in white. FIG. 2 is called a plain weave, and FIG. Each weave constitutes section A, section B, section C and section D in FIG. 1 by arrangement of warp threads W1 and W2 and weft threads F1 and F2.

The smallest unit of repetition in a woven structure is called one complete, one repeat and one cycle. The weave structure in FIG. 2 is a repetition of two warps and two wefts. consists of 8 warp threads and 8 weft threads. Similarly, although the fabric structure in FIG. 3 is a repetition of four warps and four wefts, the arrangement of the warps W1 and W2 is seven to one, and the arrangement of the wefts F1 and F2 is seven to one. , 1 complete consists of 8 warp threads and 8 weft threads. It is preferable that the number of times per one complete unit length formed by the total number of warps W1 and W2 is repeated in a cycle of 1 time/2.54 cm or more and 15 times/2.54 cm or less, and 5 times/2. More preferably, it is repeated in cycles of 54 cm or longer. It is preferable that the number of times per one complete unit length formed by the total number of wefts F1 and F2 is 2 times/2.54 cm or more and 12 times/2.54 cm or less, and the cycle is repeated 5 times/2. More preferably, it is repeated in cycles of 54 cm or longer. This is to satisfy good air permeability and mechanical properties.

In woven fabrics, the cover factor indicates the ratio of threads per unit area. In the present invention, W1 and W2 with different single yarn fineness are used for the warp, and F1 and F2 with different single yarn fineness are used for the weft. Each D has a different cover factor. The cover factor of section A consisting of W1 and F1 is the largest among the four sections, preferably 1500 or more and 2700 or less, more preferably 2000 or more. The cover factor of section D consisting of W2 and F2 is the smallest among the four sections, preferably 800 or more and 1350 or less, more preferably 1300 or less. This is to satisfy good air permeability and mechanical properties. Further, the cover factor of section B is preferably 1500 or more and 1800 or less, and the cover factor of section C is preferably 1400 or more and 2000 or less. This is to obtain better air permeability and better mechanical properties.

NW (warp) and NF (weft) are the warp and weft densities of the fabric (unit/2.54 cm), respectively, and DW and DF are the fineness (dtex) of the warp and weft that make up the fabric. (CF) is obtained from the following formula.
CF = NW x (DW) ^1/2 + NF x (DF) ^1/2

By setting the arrangement of the warp threads W1 and W2, the arrangement of the weft threads F1 and F2, and the warp and weft densities per unit length, the present invention achieves one complete section A, section B, section C, and section D. It is possible to set the ratio of each. When the total area of Section A, Section B, Section C, and Section D is 100%, Section A is preferably 55% or more and 85% or less, more preferably 60% or more. If the section A is less than 55%, the air permeability is high, but the mechanical strength is low. The division D is preferably 1% or more and 10% or less, more preferably 5% or less. If the section D exceeds 10%, the air permeability increases, but the mechanical strength decreases. Regarding Section B and Section C, in order to satisfy both air permeability and mechanical strength, Section B and Section C are each preferably 8% or more and less than 25%, and 10% or more and less than 25%. is more preferred.

Regarding the single yarn fineness, the following range is preferable in order to satisfy good air permeability and mechanical properties, and to ensure texture and high productivity as textiles for clothing. The single yarn fineness of W1 is preferably 33 dteX or more and 585 dteX or less, more preferably 84 dteX or more and 167 dteX or less. The single yarn fineness of W2 is preferably 11 dteX or more and 84 dteX or less, more preferably 22 dteX or more and 33 dteX or less. The single yarn fineness of F1 is preferably 33 dteX or more and 585 dteX or less, more preferably 84 dteX or more and 167 dteX or less. The single yarn fineness of F2 is preferably 11 dteX or more and 84 dteX or less, more preferably 22 dteX or more and 33 dteX or less.

Uniforms such as office wear, work clothes, white nursing coats, nursing care clothes, school uniforms, sportswear, coats, blousons, blouses, shirts, skirts, slacks, etc., among clothing applications, are not only breathable and cool, but also thick and thin. It is required that the fabric density is coarse and dense, and that the warp and weft threads are well-balanced and have a firm texture. The woven fabric of the present invention is preferably used as these clothing items. The weave structure of the woven fabric of the present invention is not limited, but plain weave, twill weave, satin weave, double weave, high density weave, satin weave, satin weave and the like can be mentioned.

The air permeability of the woven fabric of the present invention as measured by JIS L1096:2010 A method (Fragile method) is preferably 30 cm ³ /cm ² ·sec or more in order to obtain a cool feeling when worn. More preferably, the air permeability is 50 cm ³ /cm ² ·sec or more.

The woven fabric of the present invention preferably has a tear strength of 8 N or more as measured by JIS L1096:2010 D method (pendulum method). If the tear strength is less than the above range, the film is likely to tear when it is caught on bushes, tree branches, rocks, or the like. Furthermore, if the tear strength is 16 N or more, it can withstand severe use such as uniforms, and is very practically useful.

The woven fabric of the present invention preferably has a sliding resistance measured by the JIS L1096:2010 seam sliding method (B method) of 1.5 mm or less, more preferably 1.0 mm or less. If the slip resistance exceeds 1.5 mm, the slip easily slips during wearing or washing, and the items to be used are limited due to low practicality.

Examples of the present invention will be described below, but various modifications and alterations are possible without departing from the technical scope of the present invention.

Evaluation of each property in the examples was performed according to the following criteria.

(1) Fineness (dtex)
The value measured according to JIS L-1013 (2010) 8.3.1 A method was taken as fineness.

(2) Cover factor The cover factor is a value calculated from the fineness and density of the yarn used for the warp or weft. and DF are the finenesses (dtex) of the warp and weft composing the fabric, respectively, the cover factor (CF) is obtained from the following formula.
CF = NW x (DW) ^1/2 + NF x (DF) ^1/2
In addition, the density is sampled from 5 different points of the produced fabric according to JIS L-1096 (2010) 8.6.1 A method, and the surface is magnified 20 times with a Nikon stereoscopic microscope. was counted, the average value of each was calculated for the unit length, and obtained by rounding to one decimal place.

(3) Repetition of W1 and W2 and repetition of F1 and F2 Regarding the arrangement of warp and weft, after collecting a sample of an appropriate size from the produced fabric, one complete of warp W1 and W2 and weft F1 and F2 The arrangement of the warp threads W1 and W2 and the weft threads F1 and F2 was obtained by counting the number of each thread under a 20-fold magnification using a Nikon stereoscopic microscope. Then, by dividing the warp density and weft density per unit length by the sum of the arrangement of the warps W1 and W2 and the sum of the arrangement of the warps F1 and F2, respectively, the repetition of W1 and W2 and F1 and F2 per unit length The number (times/2.54 cm) was determined.

(4) Area ratio of section A and section D Randomly select 5 places from the produced fabric and sample, magnify each sample 40 times with a Shodensha digital microscope, and each section A, B, C , D were measured in units of 0.01 mm in the vertical direction and the horizontal direction to determine the area, and the arithmetic mean value of the five samples was taken as the area of each section A, B, C, and D. Then, the area ratio of the sections A, B, C and D was obtained by dividing the area A, B, C or D of each section by the area of all the sections.

(5) Tear strength JIS L-1096: 2010 8.17 Tear strength (N) was measured in the warp and weft directions according to 8.17.4D method (pendulum method) of tear strength. In addition, it measured 5 times and calculated|required the arithmetic mean value.

(6) Air permeability Air permeability (cm ³ /cm ² ·sec) was measured according to JIS L-1096:2010 8.26 air permeability 8.26.1A method (Frazier method). In addition, it measured 5 times and calculated|required the arithmetic mean value.

(7) Slipping resistance JIS L-1096: 2010 8.23 According to 8.23.1 Seam sliding method (B method) of JIS L-1096: 2010, the maximum hole size for seam slipping under a load of 117.0N was passed. Measured in units of 0.1 mm in both the direction and the weft direction. In addition, it measured 5 times and calculated|required the arithmetic mean value.

(Example 1)
A polyethylene terephthalate fiber of 84 dtex is arranged in the warp W1 and a polyethylene terephthalate fiber of 22 dtex in the warp W2 in a ratio of 10 to 2, respectively. Plain greige was woven with a warp density of 100/2.54 cm and a weft density of 70/2.54 cm, arranged alternately in a ratio of 6 to 2, respectively. Then, dyeing, drying and finish setting were carried out in accordance with conventional methods to obtain an outer fabric having a warp density of 125/2.54 cm and a weft density of 75/2.54 cm. The properties of this outer fabric are shown in Table 1 below.

(Example 2)
A polyethylene terephthalate fiber of 84 dtex was arranged in the warp W1 and a polyethylene terephthalate fiber of 22 dtex in the warp W2 in a ratio of 12 to 2, respectively, and a polyethylene terephthalate fiber of 167 dtex was arranged in the weft F1 and a polyethylene terephthalate fiber of 22 dtex in the weft F2. Plain greige fabrics were woven with a warp density of 150/2.54 cm and a weft density of 58/2.54 cm, arranged alternately in a ratio of 6 to 2, respectively. Then, dyeing, drying and finish setting were carried out in accordance with conventional methods to obtain an outer fabric having a warp density of 180/2.54 cm and a weft density of 64/2.54 cm. The properties of this outer fabric are shown in Table 1 below.

(Example 3)
14 pairs of 72 dtex polyamide fibers are arranged in the warp W1 and 14 pairs of 22 dtex polyamide fibers are arranged in the warp W2, and 14 pairs of 72 dtex polyamide fibers are arranged in the weft F1 and 14 pairs of 22 dtex polyamide fibers are arranged in the weft F2. A plain fabric having a warp density of 100/2.54 cm and a weft density of 110/2.54 cm was woven by alternately arranging two threads. Then, dyeing, drying and finish setting were carried out according to conventional methods to obtain an outer fabric having a warp density of 120/2.54 cm and a weft density of 120/2.54 cm. The properties of this outer fabric are shown in Table 1 below.

(Comparative example 1)
54 dtex polyethylene terephthalate fibers and 33 dtex easily alkali-soluble polyester fibers copolymerized with 5-sodium sulfoisophthalic acid are alternately arranged in a ratio of 16 to 2, respectively, and 54 dtex polyethylene terephthalate fibers are arranged in the weft. and 33 dtex 5-sodium sulfoisophthalic acid-copolymerized polyester fibers that are readily alkali-soluble are arranged alternately at a ratio of 16 to 2, respectively, with a warp density of 194/2.54 cm and a weft density of 97/ A 2.54 cm plain weave greige was woven. Next, after scouring, drying, and intermediate setting according to a conventional method, a bath treatment was performed at 95° C. for 10 minutes in a solution adjusted to a concentration of 3% sodium hydroxide to obtain a highly alkaline-soluble polyester. After completely dissolving the fibers, dyeing, drying and finish setting were carried out according to the usual methods to obtain a textured fabric having a warp density of 210/2.54 cm and a weft density of 105/2.54 cm. Each characteristic of this work cloth is shown in Table 1 below.

(Comparative example 2)
84 dtex polyethylene terephthalate fibers and 33 dtex easily alkali-soluble polyester fibers copolymerized with 5-sodium sulfoisophthalic acid are arranged alternately in a ratio of 8 to 2, respectively, and 84 dtex polyethylene terephthalate fibers are arranged in the weft. and 33 dtex 5-sodium sulfoisophthalic acid-copolymerized polyester fibers that are readily alkali-soluble are arranged alternately at a ratio of 8 to 2, respectively, with a warp density of 116/2.54 cm and a weft density of 93/ A 2.54 cm plain weave greige was woven. Next, after scouring, drying, and intermediate setting according to a conventional method, a bath treatment was performed at 95° C. for 10 minutes in a solution adjusted to a concentration of 3% sodium hydroxide to obtain a highly alkaline-soluble polyester. After completely dissolving the fibers, dyeing, drying and finish setting were carried out according to the usual methods to obtain a processed cloth having a warp density of 125/2.54 cm and a weft density of 100/100. Each characteristic of this work cloth is shown in Table 1 below.

As shown in Table 1, the tear strength, breathability and slip resistance of the fabrics of Examples 1, 2 and 3 are good. However, the processed fabric of Comparative Example 1 has low lateral tear strength, poor breathability, and poor lateral slip resistance. In addition, the work cloth of Comparative Example 2 is inferior in sliding resistance in the lateral direction.

The fabrics of the present invention can be applied in a variety of clothing applications, including demanding applications such as uniforms.

Claims (7)

It has four sections composed of warps and wefts with different total fineness , and the four sections have warps with a large total fineness W1, warps with a small total fineness W2, wefts with a large total fineness F1, and wefts with a fine total fineness . is F2, it consists of Section A consisting of W1 and F1, Section B consisting of W2 and F1, Section C consisting of W1 and F2, and Section D consisting of W2 and F2. Section A is adjacent to Section C, Section D is adjacent to Section C and Section B, and the above W1 and W2 and F1 and F2 are repeated in a predetermined cycle. A fabric characterized by the above, wherein the cover factor of section D is 1350 or less. 2. The fabric of claim 1, wherein W1 and W2 are repeated once/2.54 cm or more and F1 and F2 are repeated twice/2.54 cm or more. 3. When the total area of Section A, Section B, Section C and Section D is 100%, Section A is 55% or more and Section D is 10% or less. textile. The total fineness of W1 is 33 dteX or more and 585 dteX or less, the total fineness of W2 is 11 dteX or more and 84 dteX or less, the total fineness of F1 is 33 dteX or more and 585 dteX or less, and the total fineness of F2 is 11 dteX or more and 84 dteX or less. The woven fabric according to any one of claims 1 to 3. 5. The fabric according to any one of claims 1 to 4, wherein the air permeability measured by JIS L 1096:2010 A method (Fragile method) is 30 ^cm3 / ^cm2 ·sec or more. 6. The fabric according to any one of claims 1 to 5, wherein the tear strength measured by JIS L 1096:2010 D method (pendulum method) is 8 N or more. 7. The woven fabric according to any one of claims 1 to 6, wherein the slippage resistance measured by JIS L 1096:2010 seam slippage method (B method) is 1.5 mm or less.

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