JP2002302851A - Specific pile fabric and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a specific pile fabric having a pile obtained by collecting plural fibers and twisting tips thereof. SOLUTION: The surface of a gray fabric obtained by knitting a silver composed of a highly shrinkable acrylic fiber having 35-45% boiling water shrinkage and low-shrinkage acrylic fiber having 0-5% boiling water shrinkage is subjected to shearing to form piles having definite pile length and these piles are subjected to steam heat treatment providing rotating and rubbing action and heat shrinkage action in the presence of steam not lower than a glass transition temperature of the highly shrinkable acrylic fiber by a tumbler to provide the objective specific pile fabric having piles composed of peach fuzz acrylic fiber having short pile length and stinging-hair-like acrylic fiber having long pile length, collecting plural stinging-hair-like fibers while including plural peach fuzz fibers which exist between stinging-hair fibers, having sharp twisted tips and having root diameter thicker than the diameter of the tip on the pile surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a special pile fabric having a novel pile shape and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, as one of pile fabrics in which acrylic fibers are piled, a pile has a two-layer structure of a stabbed fiber having a long bristle and a hair growth fiber having a short bristle, imitating natural fur. A pile fabric is known, and as a manufacturing method, after knitting a sliver obtained by mixing a low-shrinkage raw cotton serving as a staple fiber and a high-shrinkage raw cotton serving as a hair-growing fiber, the sliver is made into a fixed pile length by sharing. A method is known in which a dry heat treatment is performed to shrink only the highly shrinkable raw cotton, and a shrinkable fiber is used as a hair-producing fiber and a non-shrinkable fiber is used as a staple fiber to form a two-layered pile.

However, in the conventional pile fabric having a two-layer structure, even if the length of the pile of the pile and the arrangement of the piles having different lengths of the pile are changed, at least the stab fibers are separated into single fibers. It has a pile surface in a straight state.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to completely differ from the pile shape of a conventional two-layer pile fabric,
An object of the present invention is to provide a special pile fabric having a pile with a shape in which a plurality of fibers are gathered and a tip is twisted.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a pile is composed of a short pile-forming hair fiber made of acrylic fiber and a long pile-forming fiber, and a plurality of staple fibers exist between the staple fibers. A special pile fabric having a pile in a pile surface, in which a plurality of hair growth fibers are bundled and bundled, and the tip is sharp, twisted, and the root diameter is larger than the tip portion, and the boiling water shrinkage ratio is 35 to 45. % Of high-shrinkable acrylic fiber and low-shrinkage acrylic fiber with boiling water shrinkage of 0 to 5%. After that, in a tumbler, in the presence of steam having a temperature equal to or higher than the glass transition temperature of the highly shrinkable acrylic fiber, a steaming heat treatment for imparting a rotating / kneading action and a heat shrinking action is performed to reduce the high shrinkable acrylic fiber of the pile to 35 to 45. It is shrunk into hair growth fibers, low shrinkage acrylic fiber is used as stabbed fibers, and a plurality of stabbed fibers are bundled and shaped into a bundle of fiber bundles with a sharp tip, a twist and a large root diameter. A special pile fabric manufacturing method.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The special pile fabric of the present invention is a pile fabric in which the pile is made of acrylic fiber, and the pile is composed of a hair growth fiber having a short pile length and a staple fiber having a long pile length. The bristled fibers are bundled with a plurality of bristles existing between the bristled fibers, and are bundled to form a pile bundle shape in which the tip is sharp, twisted, and the root diameter is larger than the tip. .

[0007] The bristle fibers made of acrylic fibers having a long pile length constituting the piles have a pile length of 6 to 15 mm and a pile fineness of 8 to 20 decitex (dtex), depending on the product use of the pile fabric. The hair growth fiber made of an acrylic fiber having a short pile length has a pile length of 3 to 10 mm corresponding to 55 to 65% of the pile length of the stabbed fiber, and a pile fineness of 2.8 to 3.
It is preferably 7 dtex.

Further, in order to give a deep design effect to the pile surface of the pile fabric, the pile fabric of the present invention is obtained by coloring hairs having a short pile length with a pigment such as a pigment in the spinning solution during spinning of the fabric. It is desirable to use a stock solution colored acrylic fiber obtained by adding an agent.

[0009] The ratio of the hair growth fibers to the pile fibers is
Although it depends on the length and fineness of each pile, the proportion of the hair-producing fiber is 50 to 80% by weight and that of the stabbing fiber is 50 to 20% by weight. This is preferable in that the pile-shaped pile is uniformly provided on the pile surface.

Hereinafter, the method for producing the special pile fabric of the present invention will be described. That is, the special pile fabric of the present invention is:
A high shrinkage acrylic fiber having a boiling water shrinkage of 35 to 45%,
The surface of the greige machine is knitted using a sliver containing a low shrinkage acrylic fiber having a boiling water shrinkage of 0 to 5%, and the surface is shared to form a pile having a constant pile length. In the presence of steam at a temperature equal to or higher than the glass transition temperature of the shrinkable acrylic fiber, a steaming heat treatment that gives a rotating / kneading action and a heat shrinking action is performed to shrink the highly shrinkable acrylic fiber of the pile by 35 to 45% to produce hair growth fiber, A low-shrinkable acrylic fiber is used as a staple fiber, and a plurality of staple fibers are bundled and shaped into a fiber bundle-like pile having a sharp tip, a twist, and a large root diameter.

In the method of the present invention, the boiling water shrinkage is 35%.
As a high-shrinkable acrylic fiber of up to 45%, acrylonitrile 90 to 9
5% by weight, sulfonic acid group-containing vinyl monomer 0 to 0.5
Acrylonitrile-based polymer consisting of 10% to 4.5% by weight of other vinyl monomer and having a shrinkage of 35 to 45% in boiling water, a shrinkage in dry heat of 130 ° C. for 10 minutes and a shrinkage of 3
It is preferable to use an acrylic fiber having 0 to 35% and a maximum value of the heat shrinkage stress of 90 to 130 ° C. and 110 mg / dtex or more. The single fiber fineness of the high-shrinkable acrylic fiber used is preferably 2.8 to 3.7 dtex. In addition, the high shrinkage acrylic fiber gives the pile a deep volume feeling,
Desirably, it is a stock solution colored acrylic fiber.

The preferably used high-shrinkable acrylic fiber is an acrylonitrile-based acrylonitrile-based fiber comprising 90 to 95% by weight of acrylonitrile, 0 to 0.5% by weight of a vinyl monomer having a sulfonic acid group and 10 to 4.5% by weight of another vinyl monomer. Using a polymer, a spinning solution is discharged from a spinneret into a coagulation bath, stretched 2 to 6 times in the bath, dried and densified, relaxed by 30% or more in pressurized steam, and 1.6 to 2.2. It can be obtained by performing dry heat stretching twice.

In the method of the present invention, as the low-shrinkable acrylic fiber having a boiling water shrinkage of 0 to 5%, a normal acrylic fiber called a regular fiber is used. The single fiber fineness of the low-shrinkable acrylic fiber used is 8 to 20 dt.
It is preferably ex.

In the method of the present invention, the high-shrinkable acrylic fiber is preferably made of raw cotton for a hair growth component having a cut length of 20 to 60 mm, and the low-shrinkable acrylic fiber is preferably cut at a cut length of 4 to 60 mm.
Raw cotton for the pilging component of 0 to 80 mm, preferably 50 to 80% by weight of the raw cotton for the napping component, 50 to 2% by weight of the raw cotton for the pilting component
The cotton is mixed at a ratio of 0% by weight, and sliver is formed in the carding process.

The knitting in the form of a sliver is also called sliver knitting and is used in the production of a pile cloth using the sliver as a pile, preferably using a sliver having an amount of 5 to 15 g / m. Knitting in circular knitting, the knitting conditions are not particularly limited.

The greige is made by sharing the surface of the greige in the sharing step to make the pile almost uniform in length, and, if necessary, using a tenter or the like to process the backside resin to prevent the pile from coming off, or without resin processing. , 115-130 ° C, and then put into a tumbler for steaming heat treatment. In the sharing step, the pile length is preferably adjusted to 8 to 20 mm.

[0017] Steaming heat treatment in a tumbler is performed by using a greige machine having a substantially uniform pile length at a temperature equal to or higher than the glass transition temperature of the highly shrinkable acrylic fiber, which is a hair-growing component, preferably 10 ° C.
Water vapor at a temperature of about 0 ° C. is blown into a tumbler, and is preferably treated for 5 to 10 minutes to give a rotating / kneading effect and a heat shrinking effect, to reduce the high shrinkable acrylic fiber in the pile to 35 to
45% heat shrinkage to produce hair fibers, and low shrinkage acrylic fiber without shrinking to remove the crimp applied during its production to make it into a scalable fiber, and a plurality of scalp fibers, While holding the fibers, the fibers are bundled and have a random twist with a sharp tip, and the fiber is shaped into a fiber bundle-like pile having a larger root diameter than the tip.

The rotation speed of the tumbler can be arbitrarily set according to the desired pile length, the size of the greige machine, and the like. Further, after the steam heat treatment in the tumbler, it is preferable to cool the pile fabric to approximately room temperature in the tumbler in order to impart shape stability to the shaped pile.

[0019]

The present invention will be described below in more detail with reference to examples.

(Example 1) As raw cotton for a stab component, shrinkage of boiling water is 0%, dry heat shrinkage is 0%, strength is 1.7 cN / dte.
x, raw cotton made of regular acrylic fiber having an elongation of 26% (single fiber fineness: 17 dtex, cut length: 51 mm) and raw cotton for hair growth component: 39% boiling water shrinkage, 3 dry heat shrinkage
The raw cotton (single fiber fineness: 3.7 dtex, cut length: 30 mm) made of highly shrinkable acrylic fiber (black stock solution coloring) having a strength of 2.4 cN / dtex and an elongation of 21% was used for the former 4
0% by weight and the latter at 60% by weight were blended into a sliver having a weight of 10 g / m in the carding process. Using this sliver, a knitting machine was knitted in a circular knitting machine using a circular knitting machine. The pile length of one side (front surface) of this greige was adjusted to about 15 mm in a sharing step to obtain a pile greige. The back of this pile greige is resin-processed with a tenter
Drying and drying at 0 ° C. were performed to pre-shrink the highly shrinkable acrylic fibers in the pile.

Next, the pile greige was steam-heated for 5 minutes while blowing steam at 100 ° C. with a tumbler, and then cooled to room temperature for 5 minutes to obtain a pile cloth. The obtained pile cloth is composed of a hair growth fiber having a pile length of about 9 mm and a hair growth fiber having a pile length of about 14 mm, and a plurality of the hair growth fibers are bundled together including the hair growth fibers existing between the hair growth fibers. A pile having a fiber bundle shape with a sharp tip, a twist, and a root diameter of 2 to 3 mm is uniformly formed on the pile surface,
When the pile surface was combed by hand, black hair growth fibers appeared and disappeared, giving a deep volume feeling and a pile cloth having a poodle-like pile shape.

Comparative Example 1 The pile greige obtained in Example 1 was heated at 100 ° C. in a tumbler without blowing steam.
After the treatment with the dry heat for 5 minutes, a pile having a two-layer structure of the hair growth fibers and the stab fibers was formed, but the fiber bundle-shaped pile was not formed at all.

(Comparative Example 2) In Example 1, raw cotton (fineness: 3.7 dte) made of heat-shrinkable acrylic fiber (black stock solution colored) having a boiling water shrinkage of 30% was used as raw cotton for a hair growth component.
x, cut length 30 mm), and a pile cloth was obtained in the same manner as in Example 1. The obtained pile cloth is composed of a pile of a hair growth fiber having a pile length of about 11 mm and a hair growth fiber having a pile length of about 14 mm. The bristles containing the hair fibers existing between the stab fibers were bundled, and no pile was formed in the shape of a fiber bundle having a sharp tip, a twist, and a large root diameter.

[0024]

The special pile fabric of the present invention has a pile in the form of a fiber bundle having a sharp tip, twisting, and a larger root diameter than the tip, and is a novel and special fabric not found in conventional pile fabrics. Because it has a pile shape, it is useful for outer clothing, bags, rugs, bedding, innerwear for cold weather clothing, etc., and according to its manufacturing method, such a new special pile can be reproduced with good reproducibility. Uniformly formed, the present invention has high industrial value.

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Claims (7)

[Claims] Claims: 1. A pile comprising a short pile length hair growth fiber made of acrylic fiber and a long pile length stab fiber.
A plurality of bristled fibers include a plurality of bristled fibers existing between the bristled fibers and converge, and the pile surface has a pile in a fiber bundle shape having a sharp tip, a twist, and a root diameter larger than the tip. Special pile fabric. 2. The hair growth fiber is an undiluted colored fiber.
The special pile fabric as described. 3. A greige machine knitted using a sliver composed of a high shrinkage acrylic fiber having a boiling water shrinkage of 35 to 45% and a low shrinkage acrylic fiber having a water shrinkage of 0 to 5%,
After forming a pile with a constant pile length by sharing the surface, a tumbler gives a rotating / rubbing action and a heat shrinking action in the presence of steam at a temperature higher than the glass transition temperature of the highly shrinkable acrylic fiber. By performing steaming heat treatment, the high-shrinkable acrylic fiber of the pile is shrunk by 35 to 45% to produce hair fibers, and the low-shrinkable acrylic fiber is used as stab fibers.
A method for producing a special pile cloth, comprising: bundling a plurality of stab fibers and shaping the fiber into a bundle of fiber bundles having a sharp tip, a twist, and a large root diameter. 4. The special pile according to claim 3, wherein a sliver comprising 50 to 80% by weight of high shrinkable acrylic fiber and 50 to 20% by weight of low shrinkable acrylic fiber having a boiling water shrinkage of 0 to 5% is used as the sliver. Fabric production method. 5. Prior to steaming in a tumbler,
The method for producing a special pile fabric according to claim 3 or 4, wherein a dry heat treatment at 120 to 130 ° C is performed. 6. A high-shrinkable acrylic fiber comprising 90 to 95% by weight of acrylonitrile, 0 to 0.5% by weight of a sulfonic acid group-containing vinyl monomer and 10 to 10% by weight of another vinyl monomer.
4.5% by weight of an acrylonitrile-based polymer, having a boiling water shrinkage of 35 to 45%, a shrinkage at 130 ° C of dry heat of 30 to 35%, and a maximum heat shrinkage stress of 90 to 1
The acrylic fiber which is between 30 ° C. and 110 mg / dtex or more is used.
The method for producing the special pile fabric described in the above. 7. The method for producing a special pile fabric according to claim 3, wherein undiluted colored fibers are used as the high-shrinkable acrylic fibers.