JP2005179796A - Double woven denim - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a warp-weft double woven denim which has an excellent heat-insulating property and has a lining having characteristics different from those of the face side denim. <P>SOLUTION: This double woven denim is a warp-weft double woven fabric which is made by intermittently binding a face side denim 20 to a lining 30 with warps 21, 31 and/or wefts 22, 32 and has portions where the face side denim is separated from the lining, and bound portions Δ where the face side denim is bound to the lining is characterized in that the face side denim and the lining comprise different fibers, respectively, and the face side denim comprises spun cotton yarns and is dyed with indigo. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to denim, and more particularly, to a double woven fabric in which a surface and a lining are joined.

  Conventional common denim is a single woven fabric composed of a 2/1 or 3/1 twill structure with 100% cotton spun yarn. There are both pre-dyed denim using indigo-dyed yarn for warp and bleached yarn for weft, and indigo-dyed after weaving. In addition, there are denims using high-strength regenerated cellulose fibers (for example, trade name “Tencel”) and wooly nylon as partially used yarns, and raised soft denims.

  Denim is a thick fabric, so it is very durable and can withstand repeated washing, so it is used for work clothes, children's clothing, and interior decoration. He is also a part of fashion culture with a focus on youth.

  Thus, denim is fashionable and has high tear strength and friction strength, but on the other hand, it is heavy, hard and has no stretch properties.

  Therefore, Patent Document 1 (Japanese Patent Application Laid-Open No. 2003-113549) proposes a warp double woven denim to impart stretch properties to the denim. This is a double warp and a single weft, and polyurethane elastic fibers are used for the weft. Stretch is generated by the elasticity of the weft.

  However, although the thing of the said patent document 1 improves stretchability, the following problems which denim has cannot be solved.

  First, conventional denim is heavy because thick threads are used for the background, and lacks heat retention when thin threads are used. Second, when sweat is sweated in summer, denim absorbs sweat, but the fabric adheres to the skin and gives an unpleasant feeling. Thirdly, cotton denim has a refreshing sensation, but in winter, it acts in reverse and lacks warmth.

JP 2003-113549 A

  This invention is made | formed based on such a fact, and it aims at providing the denim excellent in heat retention. In addition, another object of the present invention is to provide a double woven denim having a lining having characteristics different from those of the outer denim.

  In order to achieve the above-mentioned object, the double woven denim of the first invention of the present application is formed by intermittently connecting the outer material and the lining material with the warp and weft of the outer material and the lining material, and the portion where the outer material and the lining material are separated. This is a double weaving fabric having a connecting portion in which the outer material and the lining are joined, characterized in that the outer material and the lining material are made of different fibers, and the outer material is made of cotton spun yarn and dyed indigo.

  The double woven denim of the second invention of the present application is characterized in that the lining is made of a filament yarn or a spun yarn of a synthetic fiber.

  The double woven denim of the third invention of the present application is characterized in that the lining is a fiber having a lower water retention than cotton.

  The double woven denim of the fourth invention of the present application is characterized in that the lining is a polyester yarn for both warp and weft.

  The double woven denim according to the fifth invention of the present application is characterized in that the weight ratio of the warp and the weft of the surface and lining is 1: 1 to 3: 1.

  According to the double woven denim of the first invention of the present application, the outer material is the same denim as before, and a space is formed between the outer material and the lining material, so that air enters the space and is excellent in heat retention. Denim. In addition, by making the lining different from the outer fabric, various functions such as making it difficult to stick to the skin even when wet with sweat, rain, etc., obtaining a heat generating function, and conversely using a cold feeling material Can be obtained.

  According to the third and fourth inventions of the present application, since the lining is a polyester having a lower water retention than cotton, the moisture spreads easily, the adhesion to the skin is reduced and the wet feeling is relieved and dried quickly. Can do.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a structure diagram of a background double woven denim according to the present invention, and FIG. 2 is a cross-sectional view of the background double woven denim. The background double woven denim 10 shown in FIG. 2 has a bonded double woven structure composed of a surface material 20 and a lining material 30. The binding double weave is obtained by weaving two woven fabrics of the outer material 20 and the lining material 30, and simultaneously joining the warp yarns and the weft yarns of the outer material and the lining material. Basically, they are separated as two woven fabrics, but the outer and lining are joined in some places, so they will not leave. In FIG. 2, the surface weft 22 is the weft 22 shown in FIG. 1A, and the back weft 32 is the weft 32 shown in FIG.

  That is, as shown in FIG. 1, the outer material 20 is composed of warps 21 and wefts 22, and the backing 30 is composed of warps 31 and wefts 32. Both the outer material 20 and the lining material 30 are 3/1 twill weaves, and the outer material 20 uses tenth-numbered 100% cotton spun yarn for both the warp yarn 21 and the weft yarn 22. The warp 31 was pre-dyed by Indico, and the weft 22 was a bleached yarn.

  The lining 30 is a polyester filament in which warps 31 and wefts 32 are both made of polyester filaments having a thickness of 500 denier by drawing a large number of thin filaments of 1.5 to 2.5 denier, and using a twist of 200 times / m. ing. The filament yarn may be untwisted, but the weaving property of the yarn added with 100 to 800 turns / m is improved. This is because by adding the twist, the fuzz of the yarn is reduced and it becomes easy to pass through the heald or the like of the loom. When the twist is less than 100 times / m, the fluffing increases, and when it exceeds 800 times / m, the twist is too strong and the texture is deteriorated.

  In FIG. 1, a square with a vertical line is a place where the warp 21 of the outer surface is on the surface (the outer side of the outer surface). The white square is where the surface weft 22 is on the surface. Circles marked with circles are where the weft 32 of the lining is on the surface, squares marked with x are where the warp 31 of the lining is on the surface, wefts are where the weft 32 is on the lining, and triangles marked with △ are the lining The warp 31 comes out on the surface and the weft is the connecting portion at the surface weft 22. That is, the outer material 20 and the lining material 30 are joined at the connecting portion.

    This Δ connecting portion will be dotted in the vertical and horizontal directions of the double woven denim 10, and the outer fabric 20 is mainly made of 3/1 twill of cotton and the polyester of the lining 30 in the connecting portion. The lining 30 is a plain weave of polyester, and is a cloth containing cotton of the outer material 20 in various places. The outer material 20 and the lining material 30 constitute an independent fabric, and are integrally joined by a large number of connecting portions.

In the double woven denim 10 of the above embodiment, the outer layer 20 and the lining 30 are separated from each other, so that an air layer is formed between them, and the heat retention is excellent. This characteristic is very good in winter.
Also, ordinary cotton denim has good water absorption and water retention, so it is difficult to dry. Therefore, when wet from the outside due to rain or wet from the inside during sweat in summer, both reach the skin, and the skin feels uncomfortable for a long time. On the other hand, in the double woven denim 10 of the embodiment of the present invention, even when the outer surface 20 gets wet due to rain or the like, there is an air layer between the outer layer 30 and the moisture hardly reaches the inner layer 30. Even when sweat is applied, since the lining 30 is polyester and hydrophobic, the attached sweat spreads over a wide area of the lining 30 and the adhesion to the skin is reduced, and the touch when touching wet fabric is soft. . Moreover, since the lining 30 is polyester, it dries quickly, and unpleasant feeling is light and short.

  In the above embodiment, the outer material 20 was 10th for both warp and weft, the lining 30 was 500 denier for both the warp and weft, slightly thinner than the outer material, and the structure of the outer material and the outer material was the same. The number and weight of this are almost 2: 1. As for denim, it is not desirable that the lining is heavier than the outer material because the overall weight is too heavy, and the lining is preferably lighter. However, if the surface is too light, the air layer cannot be secured, so the ratio of the outer material to the inner material is considered to be in the range of 1: 1 to 3: 1.

  In the above embodiment, the warp yarn 21 and the weft yarn 22 of the outer material 20 were 10th, but 5th to 20th yarns can be used. The yarn is more preferably 5th to 20th from the feel such as tear strength, friction strength, and fabric thickness, which are characteristic of denim fabric.

  As the warp 31 and the weft 32 of the lining 30, a 500 denier yarn is used, but a yarn having a thickness of 150 to 800 denier can be used. When the yarn thickness is thick, the number of warp yarns is reduced, and when the yarn is thin, the number can be increased to maintain the range from 1: 1 to 3: 1. Further, a spun yarn may be used instead of the filament yarn.

It is an organization chart of the background double woven denim of the present invention. It is sectional drawing of the background double woven denim of this invention.

Explanation of symbols

10 Double Woven Denim 20 Surface 21 (Outer) Warp 22 (Outer) Weft 30 Lining 31 (Lined) Warp 32 (Lined) Weft

Claims (5)

  A warp double weave having a portion where the front side and the back side are intermittently joined with warps and wefts, a portion where the front and the back are separated, and a portion where the front and the back are combined. Is a double woven denim characterized in that it is made of different fibers, the outer surface is made of spun yarn of cotton, and at least one of warp and weft is indigo dyed.   2. The double woven denim according to claim 1, wherein the lining is made of synthetic filament yarn or spun yarn.   The double woven denim according to claim 1 or 2, wherein the lining is a fiber having a lower water retention than cotton.   4. The double woven denim according to claim 3, wherein the lining is a polyester yarn for both warp and weft.   The double woven denim according to any one of claims 1 to 4, wherein a total weight ratio of the warp and weft of the outer material and the lining material is 1: 1 to 3: 1.

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