JP2001355162A - Natural fur-tone warp knit napped fabric and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a natural fur-tone warp knit napped fabric useful for a blanket, etc., excellent in a swelling feeling of pile, a tight firmness feeling and surface fineness, three-dimensionally changing a color when a napped pile is shaken and moved, having a graceful color sense at a low cost. SOLUTION: This natural fur-tone warp knit napped fabric is characterized in that the napped fabric is a napped fabric obtained by defibrating a cut pile cut fabric made by warp knitting, comprises a high pile part composed of a synthetic fiber and a low pile part composed of the same synthetic fiber as that of the high pile part, the length of the low pile part is <70% the length of the high pile part and both the high pile part and the low pile part are dyed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warp knitted napping material mainly used for blankets and the like, and more particularly to a natural fur-like warp knitted napping material made of cut pile material using a spun yarn as a pile yarn, and a method for producing the same. It is.

[0002]

2. Description of the Related Art Conventionally, a nap cloth made of a warp knitted cut pile cloth preferably used for a blanket or the like is knitted using, for example, a double raschel machine dedicated to cut pile having a structure shown in FIG. Reeds (L1), (L2)
And the back side reeds (L4) and (L5) guide the inserted yarn and chain yarn to the front and rear needle beds (11) and (12), respectively.
A ground texture is formed on the front and back, that is, on both front and back sides, and the pile yarn (P) is moved by the reed (L3) at the center to the front and rear needle beds (1).
The pile yarn (P) is led to knitting needles (1) and (1) and (12).
3) and (14) are sequentially wrapped and knitted together with the two-sided structure. The pile yarn (P) thus wrapped around the two-sided structure is cut at the center of the two-sided structure. Get the fabric, then dye or print,
After wet heat treatment and drying, the pile is defibrated to make a napped state,
It is to be finished into a napped product such as a blanket.

[0003] Various developments have been made on natural fur-like warp knitted wool fabrics, which have a graceful color that changes color three-dimensionally when an upright pile shakes.
There are many on the market. However, many of these materials are made of the same material but different in the content of opaque fine particles, for example, so-called dull yarn containing 0.2 to 1% of opaque fine particles such as titanium dioxide in synthetic fibers and opaque fine particles in synthetic fibers. By constructing and dyeing pile yarn using so-called bright yarn that does not contain, it is possible to make use of the property that the dull yarn portion is light in visual sense and the bright yarn portion is dark, or pile after finishing normal dyeing The tip of the part is discharged and made to be marbling, or a method in which cut pile cloth is wrapped around a rotating drum and the dye is transferred to the tip of the pile part by centrifugal force (see Japanese Patent Publication No. 4-37178). .

[0004]

However, the method of forming and dyeing pile yarns using the same material but having different contents of opaque fine particles has a problem that the effect obtained is small, and ordinary dyeing is problematic. The method of discharging the tip of the pile part after finishing is difficult because it is difficult to apply the chemical only to the tip part of the pile part, so that there is a problem that uneven discharge occurs, and the cut pile cloth is wound around the rotating drum. In addition, the method of transferring the dye to the pile part by centrifugal force has a problem that productivity is not improved.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a three-dimensional structure in which an upright pile which can be used for a blanket excellent in pile swelling, tightness, surface quality, and the like swings. It is an object of the present invention to provide a natural fur-like warp knitted wool fabric having an elegant color change in color at low cost.

[0006]

The present invention has the following configuration to achieve the above object. That is, the first invention is a nappied fabric in which a warp knitted cut pile fabric is defibrated, and comprises a high pile portion made of synthetic fiber and a low pile portion made of the same synthetic fiber as the high pile portion. A natural fur-like napping cloth, wherein the length of the low pile portion is less than 70% of the length of the high pile portion, and the high pile portion and the low pile portion are dyed; The second invention uses a spun yarn as a pile yarn, knits both textures with a double Russell machine, cuts the pile yarn at the center of the texture, and then cuts the pile after coloring and wet heat treatment. A warp knitted napping fabric obtained by defibrating the synthetic fiber, wherein the spun yarn is composed of a high-shrink synthetic fiber and a low-shrink synthetic fiber, each of which has a wet heat shrinkage ratio different by 30% or more. Are the same synthetic fiber The gist of the method of manufacturing the natural fur tone warp knitted pile fabric and butterflies.

Hereinafter, the present invention will be described in detail.

FIG. 1 shows a napped fabric (A) according to the present invention comprising a cut pile fabric knitted by warp knitting, wherein (1) is the napped surface, and (2) is a base fabric having a ground structure. The nap surface (1) is obtained by breaking the cut pile into nap.

As the dye / pigment, any known dye / pigment conventionally used for synthetic fibers can be used. In particular, various types of carbon black, inorganic pigments such as titanium oxide and calcium carbonate, phthalocyanine blue and phthalocyanine green, and the like can be used. Phthalocyanine-based, perylene-based organic pigments such as perylene maroon and perylene red, dioxazine-based organic pigments such as dioxazine fluvasol and violet, and isoindolinone-based organic pigments such as irgazine yellow and red
Benzoxazole-based optical brighteners such as -4'-bis (2-benzoxazolyl) stilbene and derivatives thereof, and cationic dyes are suitable for the purpose of the present invention.

In the first invention, the raised surface (1)
As shown in FIG. 2, the pile includes a high pile section (3) made of synthetic fiber and a low pile section (4) made of the same synthetic fiber as the high pile section (3). (4) A pile whose length is less than 70% of the length of the high pile portion (3) is used. The high pile section (3) and the low pile section (4) are dyed. That is, it is necessary that the same synthetic fiber is used in the high pile section (3) and the low pile section (4) in order to economically dye a dye or the like in one bath. It is also possible to make the height difference so that the length of the low pile portion (4) is less than 70% of the length of the high pile portion (3), so that the color changes three-dimensionally when the standing pile swings. It is necessary to give a graceful color feeling.

In the present invention, synthetic fibers include, for example, polyethylene terephthalate, polybutylene terephthalate, polyoxyethoxy benzoate, polyethylene naphthalate, cyclohexane dimethylene terephthalate, and polyesters such as isophthalic acid, adipic acid, Polyester obtained by copolymerizing a dicarboxylic acid component such as sulfoisophthalic acid and a diol component such as propylene glycol, butylene glycol, cyclohexane dimethanol and diethylene glycol; polyamides such as 6-nylon, 6,6-nylon and aromatic nylon; polypropylene An acrylonitrile content of 40% by weight or more and other vinyl monomers such as acrylic acid, methacrylic acid, or their alkyl esters, vinyl acetate; , Vinyl chloride, vinylidene chloride,
Sodium allyl sulfonate, sodium methallyl sulfonate,
Sodium vinyl sulfonate, sodium styrene sulfonate,
Acrylic or the like obtained by copolymerizing 2-acrylamido-2-methylpropanesulfonate sodium or the like in an appropriate proportion at a ratio of 60% by weight or less is exemplified.

Next, the method of the present invention will be described.

First, as a spun yarn used for a pile yarn,
Use is made of high-shrinkage synthetic fibers and low-shrinkage synthetic fibers having different wet heat shrinkages by 30% or more. If the wet heat shrinkage ratio does not differ by 30% or more, or if it is made of nap, it is not suitable because the length of the low pile portion does not become less than 70% of the length of the high pile portion. The wet heat shrinkage refers to the shrinkage when steaming at 100 ° C. for 20 minutes. As a high shrink synthetic fiber,
A fiber obtained by a known method is used, and examples thereof include a fiber obtained by regularly adding a plastic component and a conjugate fiber. Examples of the spun yarn composed of the high-shrinkage synthetic fiber and the low-shrinkage synthetic fiber include a mixed spun yarn composed of both, and a twisted yarn composed of both. The ratio of both is preferably in the range of high-shrink synthetic fiber: low-shrink synthetic fiber = 5-60%: 95-40%. In the second invention, the same synthetic fiber is used as the high-shrink synthetic fiber and the low-shrink synthetic fiber.

Next, as in the conventional case, the reeds (L1), (L
2) and (L4), (L5) guide the inserted yarn and the chain yarn to the front and rear needle beds (11), (12), respectively, to knit the ground structure of the front and back, that is, the front and back surfaces, and to reed (L3) In this way, the pile yarn (p) is guided to the front and rear needle beds (11) and (12), and is sequentially wrapped by the knitting needles (13) and (14) of the front and rear needle beds and knitted together with the above-mentioned two-layer structure. FIG. 4 is an exploded view of the wrapping motion of the insertion reed (L1) and the chain reed (L2), the pile reed (L3), and the back side reed (L4) and the insertion reed (L5). Knitting in knitting organization. Immediately after this knitting, the pile yarn (p) passed over the two ground structures is cut at the center between the two ground structures,
Obtain the warp knitted pile fabric.

In the second invention, the warp-knitted cut pile fabric obtained as described above is colored by dyeing or printing, and further subjected to wet heat treatment with steam or the like, washing and drying. In addition, if a softening agent or a sticking agent is applied before the defibration, the defibration property is further improved.

Subsequently, a defibrating process is performed using a known defibrating machine or a raising device. Further, after the defibrating treatment, when the physical elongation process of the napped portion accompanied by the heat treatment is performed by using a polisher, the surface state of the napped product becomes smooth and the quality is improved. Thereafter, the low-shrinkage synthetic fibers are arranged into naps of a certain length by shearing (shearing), whereby the nap cloth having a natural fur tone of the present invention is obtained.

That is, in the second aspect of the invention, the napped fabric obtained comprises a high pile portion and a low pile portion, the length of the low pile portion is less than 70% of the length of the high pile portion, and Since the pile and low pile are dyed, the reflection of light is different between the high and low piles, like stabs and fluff. A natural fur tone with an elegant color that changes color.

[0018]

Next, embodiments of the present invention will be described in detail with reference to examples.

Production Example 1 of Acrylic Synthetic Fiber Acrylonitrile (AN) / methyl acrylate (M
A) Prepare a dimethylformamide (DMF) solution of an acrylic polymer consisting of 9/2 / 8.0 / 0.8 (weight ratio) / 2-acrylamido-2-methylpropanesulfonate sodium (SAM) Spinning solution (hereinafter, spinning solution A)
). Then, the solution was spun into a 60% by weight aqueous solution of DMF at 20 ° C., spin-drawn by a usual method, and the solvent was removed by washing with water, followed by drying and densification with a hot roller at 130 ° C. The primary stretching was performed 1.3 times at 95-100 ° C. of moist heat, and then contracted 0.8 times at 105-110 ° C. After drying the fiber after oil adhesion,
Dry heat drawing was performed at 1.5 ° C. by 1.5 times to obtain 3 denier acrylic fiber and 102 mm. In addition, the wet heat shrinkage rate of the obtained high shrinkage acrylic fiber was 30%.

Production Example 2 of Acrylic Synthetic Fiber I. Pigment Red 123 (manufactured by Ciba Geigy) in a DMF solution containing 10% by weight. This was converted to acrylonitrile (AN) / methyl acrylate (M
A) 100% by weight of a DMF solution of an acrylic polymer consisting of sodium 2-acrylamido-2-methylpropanesulfonate (SAM) = 91.2 / 8.0 / 0.8 (weight ratio), AN / MA / SAM = 50/48/2 (weight ratio)
10% by weight was added to a spinning dope (hereinafter referred to as spinning dope B) in which a DMF solution of a polymer composed of 20% by weight was mixed, and this was spun, dried, densified, etc. in the same manner as in Production Example 1. Acrylic fiber 3 denier 102mm was obtained.
In addition, the wet heat shrinkage rate of the obtained highly shrinkable stock solution colored acrylic fiber was 40%.

Production Example 3 of Acrylic Synthetic Fiber I. Pigment Red 123 (manufactured by Ciba Geigy) in a DMF solution containing 10% by weight. This was added to the spinning dope A at 10% by weight and mixed.
Spinning, drying, densification, and the like were performed in the same manner as in the above to obtain 102 mm of 3-denier acrylic fiber. In addition, the wet heat shrinkage of the obtained low-shrinkage stock solution colored acrylic fiber was 3%.

Production Example 4 of Acrylic Synthetic Fiber Spinning stock solution B was spun, dried, densified, etc. in the same manner as in Production Example 1 to obtain 102 mm of 3-denier acrylic fiber. The high heat shrinkable acrylic fiber obtained had a wet heat shrinkage of 4
It was 0%.

Example 1 40% by weight of a high shrinkage acrylic fiber and 60% by weight of a low shrinkage acrylic fiber were mixed and set on a known spinning machine, and the Z-twist direction was 335 T / M (twist coefficient 63.3) at 28th. A spun yarn was produced, and a twin yarn having an upper S twist direction of 230 T / M (twist coefficient 61.5) was obtained. This is used for pile yarn,
Using a polyester filament yarn of 0 denier 48 filaments as a chain yarn and a polyester filament yarn of 340 denier 48 filaments as an insertion yarn, a knitting structure shown in FIG. 4 was knitted (using a 16 gauge curl Meyer machine). Next, the center pile yarn between the two ground structures was cut (center cut) with a cutter having a belt-running blade to obtain a warp-knitted pile fabric.

The cut pile fabric is prepared by a known method using a cationic dye (Diacryl Golden Yellow).
GLH (manufactured by Mitsubishi Kasei Corporation) 0.2 g / l, Nich
Ilon Red GRL 200% (Nissei Kasei Corporation)
0.28 g / l, Nichilon Blue G
RL 200% (manufactured by Nissei Chemicals, Ltd.) 0.06 g / l)
After being immersed in a dyeing solution containing an acid and a known slow-dyeing agent, squeezed using a mangle, moist heat treated at 100 ° C. for 20 minutes with a continuous steamer, soaped by a known method, and dried after applying a softener. Next, the yarn is passed through a two-cylinder type quadruple-type hair remover once in the reverse direction of the pile length and once in the forward direction, and defibrated. The tip was sheared to obtain a natural fur-like warp knitted wool fabric of Example 1.

COMPARATIVE EXAMPLE 1 The same processing as in Example 1 was performed except that 100% by weight of low shrinkage acrylic fiber was used instead of 40% by weight of high shrinkage acrylic fiber and 60% by weight of low shrinkage acrylic fiber. The product of Comparative Example 1 was obtained.

The product obtained in Example 1 had an elegant color that changed color three-dimensionally when the standing pile was shaken, but the product obtained in Comparative Example 1 was:
When the standing pile was shaken, the color did not change three-dimensionally.

[0027]

The warp knitted napping fabric according to the present invention has a pile swelling feeling, a tight feeling and a surface quality, and also has an elegant color sensation in which the color changes three-dimensionally when the standing pile sways. It has a natural fur tone and is very useful for blankets and the like. Further, according to the method of the present invention, since the manufacturing can be performed without using a special device or the like, the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a warp knitted nap cloth of the present invention.

FIG. 2 is an explanatory diagram showing a pile state of the present invention.

FIG. 3 is a side view of a main part of a double Russell machine dedicated to cut pile.

FIG. 4 is a knitting structure diagram showing an exploded view of a wrapping state of the cut cloth according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Napped surface 2 Ground structure 3 High pile part which consists of synthetic fibers 4 Low pile part which consists of synthetic fibers

Claims (2)

[Claims] 1. A warp knitted cut pile fabric which is a plied napped fabric, comprising a high pile portion made of synthetic fiber and a low pile portion made of the same synthetic fiber as the high pile portion. The length of the pile is 70% of the length of the high pile
A natural fur-like raised hair fabric characterized by being dyed with a high pile portion and a low pile portion. 2. Using a spun yarn as a pile yarn, knitting both fabrics with a double Russell machine, cutting the pile yarn at the center of the fabric, and then uncoloring and removing the pile after wet heat treatment. In the method for obtaining a warp knitted napping fabric by a fiber treatment, the spun yarn is composed of a high-shrink synthetic fiber and a low-shrink synthetic fiber having different heat-shrink rates by 30% or more, and the high-shrink synthetic fiber and the low-shrink synthetic fiber are identical A method for producing a natural fur-like warp knitted wool fabric, characterized in that the fabric is a synthetic fiber.