JPH05311574A - Production of woven fabric having uneven surface - Google Patents

Abstract

PURPOSE:To readily obtain a woven fabric having excellent uneven feeling by properly using yarns having different shrinkability for a swelling agent as warp and weft yarns in the front and back surfaces of the woven fabric, weaving the yarns into a double woven fabric and then treating the woven fabric with the swelling agent. CONSTITUTION:Shrinkable yarn capable of shrinking with a swelling agent and unshrinkable yarn without shrinking with the swelling agent are used. When, e.g. benzyl alcohol is employed as the swelling agent, yarn composed of polyamide fiber, polyester fiber or acetate fiber is used as the shrinkable yarn and yarn such as cellulosic fiber is used as the unshrinkable yarn. The yarns are used as warp and weft yarns on the front and back surfaces of the woven fabric or properly as the warp or weft yarn thereon to weave, e.g. a double woven fabric. The resultant woven fabric is then treated with an emulsion containing the benzyl alcohol to readily afford the objective woven fabric having excellent unevennesses without requiring a special apparatus at a low cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a woven fabric having an uneven surface with a large difference in unevenness.

[0002]

2. Description of the Related Art Conventionally, many woven fabrics having an uneven surface have been put on the market as high value-added products, for example, a method by embossing, a method using strong twisted yarn, a method using fibers having different hot water shrinkage ratios (Japanese Patent Laid-open No. Sho 60). -134042) and the like.

[0003]

However, the woven fabric obtained by any of these methods has a small unevenness, and beyond this, no new one having a high design effect such as a cardboard tone has been obtained. The current situation.

The present inventors have conducted intensive studies on a method for producing a woven fabric having an uneven surface, and as a result, have found a new production method in which various problems of the above existing method are solved and completed the present invention.

An object of the present invention is to provide a method capable of easily and inexpensively forming a woven fabric having an excellent texture.

[0006]

[Means for Solving the Problems] The above object is to use a shrinkable yarn that shrinks with a swelling agent and a non-shrinkable yarn that does not shrink with a swelling agent as warp yarns, weft yarns, or warp yarns on the front and back sides of a double woven Is woven and then treated with a swelling agent to obtain a woven fabric having an uneven surface.

The present invention will be described in detail below.

In the present invention, examples of the shrinkable yarn which is contracted by the swelling agent include yarns made of fibers such as polyamide, polyester, acetate and cellulose.

As the polyamide fiber used in the present invention,
For example, nylon 4, nylon 6, nylon 7, nylon 11, nylon 12, nylon 66, nylon 61
0, polymeta-xylene adipamide, poly-para-xylylene decanamide, polybiscyclohexylmethane decanamide and copolyamides containing these components are preferred, with nylon 6 and nylon 66 being preferred. If the main constituent material is the above-mentioned polyamide fiber, other fibers such as polyester, acetate, cellulosic and wool may be mixed. As the polyamide swelling agent for swelling the polyamide fiber, benzyl alcohol, phenol,
Examples thereof include emulsions of formic acid, acetic acid, dimethylformamide, xylene, etc., and particularly benzyl alcohol emulsion is preferable. When emulsifying the polyamide swelling agent, a nonionic, cationic, anionic or a mixture thereof may be added and emulsified and dispersed. When a swelling treatment is performed using a polyamide swelling agent, a low-concentration solution of about 1 to 10% by weight may be used at a slightly higher temperature, that is, about 60 to 100 ° C., in which case an anion component is enhanced. It is preferable to use an emulsifier having improved emulsifying power in the high temperature range.

The polyester fibers used in the present invention include polyethylene terephthalate, polytetramethylene terephthalate, polyethyleneoxybenzoate, poly-1,4-dimethylcyclohexane terephthalate,
Examples thereof include polyesters such as polypipalolactone and block polyether polyesters obtained by copolymerizing a polyethylene terephthalate component with polyethylene glycol, isophthalic acid, sulfoisophthalic acid and the like. If the main constituent material is the polyester fiber, other fibers such as polyamide, acetate, cellulosic, and wool may be mixed. Examples of the polyester swelling agent for swelling the polyester fiber include emulsions of benzyl alcohol, phenol, diphenyl ether, xylene and the like, and an emulsion of benzyl alcohol is particularly preferable. When the polyester swelling agent is emulsified, a nonionic, cationic, anionic or a mixture thereof may be added and emulsified and dispersed. When the swelling treatment is carried out using a polyester swelling agent, it may be used as a low-concentration solution of about 1 to 15% by weight at a slightly higher temperature of about 80 to 130 ° C., in which case an anion component is strengthened. It is preferable to use an emulsifier having improved emulsifying power in a high temperature range.

Examples of the acetate fibers used in the present invention include diacetate and triacetate. If the main constituent material is the acetate fiber, other fibers such as polyamide, polyester, cellulosic and wool may be mixed. Examples of the acetate swelling agent for swelling the acetate fibers include emulsions of benzyl alcohol, phenol and the like, and an emulsion of benzyl alcohol is particularly preferable. When emulsifying such an acetate swelling agent, nonionic, cationic,
An anionic surfactant or a mixed surfactant of these may be added and emulsified and dispersed. When the swelling treatment is performed using an acetate swelling agent, a low-concentration solution of about 1 to 10% by weight may be used at a slightly elevated temperature of about 90 to 130 ° C., in which case an anion component may be enhanced. It is preferable to use an emulsifier having improved emulsifying power in a high temperature range. If the acetate swelling agent is used in an amount of 10% by weight or more, the acetate fiber may become brittle, so it is not preferable to use 10% by weight or more.

The cellulosic fibers used in the present invention include cotton, hemp, rayon and the like. If the main constituent material is the above-mentioned cellulosic fiber, other fibers such as polyamide, polyester, acetate and wool may be mixed. Examples of the cellulosic swelling agent that swells the cellulosic fibers include sodium hydroxide, potassium hydroxide, and lithium hydroxide. When the cellulosic swelling agent is subjected to a swelling treatment, it is preferably used as a medium-concentration solution of about 10 to 25% by weight and used at a slightly lower temperature of about 0 to 30 ° C. without tension.

As described above, when benzyl alcohol is used as the swelling agent, the filaments made of polyamide fibers, polyester fibers and acetate fibers become shrinkable filaments, and the filaments made of cellulosic fibers and other fibers do not shrink. In the case where acetic acid is used as the swelling agent, the filament made of polyamide fiber becomes a shrinkable filament, and the filament made of polyester fiber, acetate fiber, cellulosic fiber or other fibers becomes a non-shrinkable filament, and a swelling agent. For example, when sodium hydroxide is used, the filaments made of cellulosic fibers become shrinkable filaments, and the filaments made of polyamide fibers, polyester fibers, acetate fibers and other fibers become non-contractile filaments. That is, depending on the type of the swelling agent, the swelling agent may have a shrinkable thread shape or a non-shrinkable thread shape.

The shrinkable yarn and the non-shrinkable yarn are separately used for the front and back to form a double woven fabric.
There are wefts and warps. Table 1 shows the specific usage of the double weave.

[0015]

[Table 1]

In the present invention, the double weave weave may be any weave, such as Bedford coat, picke, mattasse, or wind-weave. Other than this, a double weave or weft double weave may be used. Further, the connecting points between the outer material and the lining may be dot-like, ridge-like, lattice-like or the like, and by changing the connecting points, it is possible to obtain an uneven pattern other than a cardboard tone.

[0017]

EXAMPLES The present invention will be described in detail below based on examples.

Nylon 6 filament 70d / 32F is arranged as the surface warp and the surface weft, and woven into a four-layer satin with a warp density of 188 threads / inch and a weft density of 117 threads / inch.
Nylon 6 filament 70d / 36F is used as the back warp, and cotton 20 count single yarn is used as the back weft, and the warp density is 63.
A woven plain weave having a book / inch and a weft density of 78 threads / inch was woven, and a double weave of 4 sheets of satin on the front side and a plain plain weave was woven to obtain a raw fabric.

The raw fabric obtained is scoured and exposed by a known method, and then benzyl alcohol 8.0 is obtained using a jet dyeing machine.
%, And an emulsifier (KM-240 manufactured by Takemoto Yushi Co., Ltd.) 0.8%. That is, while operating the dyeing machine to circulate the greige, the emulsion solution
After raising the temperature to 80 ° C in 0 minutes and continuing the treatment for 30 minutes as it is, the emulsion solution is discharged and collected, washed with water, dried, and contracted by 21% in the warp direction and 17% in the weft direction. A woven fabric was obtained.

Industrial Applicability As described in detail above, the woven fabric obtained by the method of the present invention has a good surface unevenness effect and is useful because it has no uneven portion due to uneven untwisting found in textured fabrics.
In addition, the manufacturing method does not require a special device, and has an effect that a high-value-added high-class product can be easily provided at low cost.

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Claims (1)

[Claims] 1. A double woven fabric is formed by separately using a shrinkable yarn that shrinks with a swelling agent and a non-shrinkable yarn that does not shrink with a swelling agent as warp yarns, weft yarns or warp yarns on the front and back, and then treats with a swelling agent. A method for producing a woven fabric having an uneven surface, comprising: