JPH07207587A - Method for producing irregularly dyed-like fiber structure - Google Patents

Abstract

PURPOSE:To provide a method for producing an irregularly dyed-like fiber structure, capable of simply imparting an irregularly dyed appearance giving a natural touch to a fiber structure and enabling various color phases in good reproducibility. CONSTITUTION:A fiber structure is dyed, printed with a paste containing triethanolamine and an alkylaminepolyethyleneglycolether, and subsequently subjected to a steam thermal treatment.

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 fiber structure having a mottled appearance.

[0002]

2. Description of the Related Art Generally, it is desired that a dyed product has little discoloration after repeated washing, that is, dyed firmly so as not to be washed. However, in the fashion trends of young people these days, it is preferable to have a feeling of being spotted, washed, or worn, such as blue denim. In particular, casual pants called bleach-out denim are the twill fabric dyed with indigo dye or its sewn product that has been decolorized using a bleaching agent. Further, not only blue, which is an indigo dye, but also color denim having various hues are more likely to be spotted, that is, products that are bleached out.

In order to meet such demands, conventionally, the pigment is exposed to chlorine after being colored with a reactive dye, or is exposed to chlorine after being colored with a vat dye, but each has its own defects.
That is, in the former case, it is generally difficult to control the density of the dyed cloth because the reactive dye has poor chlorine fastness, and in the latter case, the chlorine fastness is too good and the bleached-out feeling is hard to appear. In any case, the bleaching process is a batch method such as Wins and it takes a long time, and even the dye left unbleached because it is decolorized by using a bleaching agent is affected by the bleaching agent, and the fastness is descend. Further, since sodium hypochlorite or the like is used as a bleaching agent, there is a drawback that the workability is poor due to the problem of odor.

In order to solve these problems, conventionally, a method of fixing the pigment by using a binder and, after heat treatment, performing strong washing with a washer or the like to partially remove the pigment,
After printing the resin and surfactant in a spot pattern in advance, coloring them,
There is a method of expressing a spotted feeling. However, the method using a pigment has a problem that the texture becomes rough and hard because a binder is used and washing streaks occur, and the method of printing the resin in a spot pattern beforehand makes the boundary part too clear. The method of printing a surface-active agent in advance in the form of spots without giving a natural spot feeling has a problem that the reproducibility of spots is poor.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems in the case where a fiber structure is provided with a natural-spotted appearance. That is, the present invention provides a method for producing a spot dyed fiber structure, which can easily give a natural-colored spotted appearance to a fiber structure and enables various hues with good reproducibility. The purpose is to

[0006]

The above-mentioned object is characterized by coloring a fiber structure, printing a sizing agent containing triethanolamine and alkylamine polyethylene glycol ether, and then performing steam heat treatment. This is achieved by the method for manufacturing a fiber-textured structure.

The present invention will be described in detail below.

The fibers used in the present invention include cotton, silk,
Applicable to any fiber such as natural fiber such as hemp and wool, regenerated cellulose fiber such as rayon, cupra, polynosic, purified cellulose fiber (trademark: Tencel), synthetic fiber such as polyester, polyamide and acrylic, and mixed fiber of various fibers, interwoven However, it is preferable from the viewpoint of the effect of obtaining a fiber that can be dyed with an acidic metal-containing dye or a reactive dye. Examples of the fiber structure include woven fabrics, knitted fabrics, and non-woven fabrics.

As the dye used for coloring in the present invention, an acidic dye, an acidic metal-containing dye, a reactive dye, a direct dye, a cationic dye, a disperse dye or the like is used depending on the type of fiber of the fiber structure. As a coloring method, various dyeing methods such as dip dyeing, padding dyeing, and printing can be used.

In the present invention, the sizing agent is starch, soluble starch, water-soluble starch, water-soluble starch derivative,
Water-soluble cellulose derivatives such as carboxymethyl cellulose, hydroxyethyl cellulose and methyl cellulose,
Gums such as sodium alginate, gum arabic, locust bean gum and guar gum, water-soluble proteins such as gelatin and glue, sodium polyacrylate, polyvinyl alcohol, polyethylene oxide, polyvinylpyrrolidone, polyacrylamide, polyethyleneimine, 4
Examples thereof include synthetic water-soluble polymers such as graded water-soluble cationic polymers. What is important in the present invention is to include triethanolamine and alkylamine polyethylene glycol ether in such a sizing agent. Both of them are contained in an amount of 1% by weight to 15% by weight based on the total amount of the sizing agent. If it is less than 1% by weight, no patchy feeling is obtained, while 1
If it exceeds 5% by weight, the boundary between colors becomes clear, which is not preferable. Triethanolamine and alkylamine polyethylene glycol ether have a very strong dye affinity, and have the action of drawing the dye pigment from the fiber structure into the sizing agent.

Examples of the method for printing a sizing agent containing triethanolamine and alkylamine polyethylene glycol ether on a fiber structure include a screen printing method, a roller printing method and a rotary screen printing method.

After printing the sizing agent, if necessary, dry
It is steamed, but the steaming condition is 100-14.
Steaming at 0 ° C. for 5 to 180 minutes is preferred.
After that, it is washed and dried to make a product.

Further, after that, by further rubbing the fibrous structure with a jet dyeing machine, a winch, a rotary washer, etc., the feeling of spots becomes stronger. For example, the processing conditions when using a jet dyeing machine are as follows: bath ratio 1:10 to 1:50, set temperature 50 to 100 ° C.
It is preferable that the set time is 10 to 150 minutes. Outside the range of the above treatment conditions, wrinkles may become uneven, and defects such as pilling may occur on the surface of the fiber structure.

[0014]

EXAMPLES Next, the method of the present invention will be specifically described based on Examples.

Example 1 Warp density 11 using 140 count / twist for warp and weft 11
Fuji silk with 8 threads / inch and weft thread density of 105 threads / inch
Scouring and bleaching are carried out according to a conventional method, and then Irgalan Brown 2GL (CIBA-
3% owf (manufactured by GEIGY) was dyed according to a conventional method, washed with water and dried.

Fine Fuji MS (manufactured by Uni Chemical Co.) containing 10% by weight of triethanolamine and 8.7% by weight of alkylamine polyethylene glycol ether in the Fuji silk, and Finegum G-5 as guar gum.
(Daiichi Kogyo Seiyaku Co., Ltd.) 8% by weight, urea 3.2% by weight, Diatex DY (made by Mitsubishi Kasei) as a reduction inhibitor
A sizing agent consisting of 0.6% by weight, 45% acetic acid 0.3% by weight, and water 77.5% by weight is printed on a spot pattern using a flat screen type printing machine, and after drying, steamed at 102 ° C for 10 minutes. Then, it was washed with water and dried. Further, a rubbing process was performed with a jet dyeing machine to obtain a product of Example 1. As a jet dyeing machine, a rigid circular (manufactured by Hisaka Seisakusho) was used, and the treatment was carried out at a bath ratio of 1:20, a temperature of 98 ° C. and a time of 120 minutes.

Example 2 A product of Example 2 was obtained by carrying out the same treatment as in Example 1 except that the kneading process was not carried out with the jet dyeing machine.

Comparative Example 1 The dyed Fuji silk of Example 1 was treated with an acid-containing metal dye I
ngalan Brown 2GL (CIBA-GEI
GY) 1% by weight, fine gum G- as guar gum
5 (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) 9% by weight, urea 3.6% by weight,
Diatex DY (made by Mitsubishi Kasei) as a reduction inhibitor
A paste consisting of 1.2% by weight, 0.4% by weight of 45% acetic acid and 84.8% by weight of water is printed on a spot pattern by using a flat screen type printing machine, and after drying, steamed at 102 ° C. for 10 minutes. Then, it was washed with water and dried. Further, rubbing was performed under the same conditions as in Example 1 to obtain a product of Comparative Example 1.

Table 1 shows the patchiness (three-step evaluation of ⊚, ∘, and ×) of the products obtained in Examples 1, 2 and Comparative Example 1.

[0020]

[Table 1]

As is clear from Table 1, the products obtained in the examples have a patchy feeling.

[0022]

As described above, according to the present invention, there is no difficulty in controlling the dyeing density as in the prior art, the process time is short, there is no odor problem, and there is no streak-free wind with excellent reproducibility. In this case, a product having an excellent mottled appearance can be continuously achieved, and its industrial utility value is great. In addition, the resulting product can have all hues, has an unprecedented spotting feeling, and is extremely useful for casual use.

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Claims (1)

[Claims] 1. A method for producing a spot-dyed fiber structure, which comprises coloring a fiber structure, printing a sizing agent containing triethanolamine and alkylamine polyethylene glycol ether, and then performing steaming heat treatment.