JPH05321167A - Fabric with special pattern and its production - Google Patents

Abstract

PURPOSE:To provide the subject fabric differing in degree of coloredness by portions and to provide the method for producing such fabrics in high operational stability at industrially low cost. CONSTITUTION:Portions differing in degree of acetylation from one another are provided in a patterned fashion on the surface of an acetate-based fiber fabric, and the fibers are multicolored in accordance with the degree of acetylation. The production method for this fabric is as follows: an acetate-based fiber fabric is subjected to wrinkling treatment, then continuously saponified with an alkali and then dyed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a special pattern fabric using acetate fibers and a method for producing the same.

[0002]

2. Description of the Related Art Various processes for imparting wrinkles to an acetate fiber cloth have been conventionally performed. For example, there are a physical method of applying wrinkles by applying physical pressure in a dry heat or wet heat state, a resin processing method of using a resin, wrinkling, and heat treatment after padding. However, with such a conventional method, the durability of wrinkles is only about a few times of washing.

Therefore, in place of the wrinkling process, a method for producing a cloth having various wrinkle patterns has been studied. For example, in JP-A-48-9687, there is a method in which a cloth is bundled into a rope shape and / or is subjected to indentation crimping, and a wrinkle pattern is developed on the cloth by dyeing at the same time or immediately after that. KAISHO 59-15582 discloses that when a dye and pigment is applied to a three-dimensional knitted fabric by a padding and / or coating system, the knitted fabric is padded and / or overlapped by 15 to 75% when the system is pressed. Alternatively, a method of developing a wrinkle pattern by coating is disclosed, and in JP-A-2-154059, a cloth made of synthetic fibers is subjected to hot water treatment at 90 to 140 ° C. in a rope state, and then coated with a solution containing a pigment. However, a method of developing a wrinkle pattern by kneading after that is proposed.

[0004]

However, the methods disclosed in JP-A-48-96878 and JP-A-59-15582 are for dyeing in a wrinkled state at the time of dyeing, and are therefore partially dyed. However, there is a drawback that a white spot may remain. Further, the method disclosed in Japanese Patent Application Laid-Open No. 2-154059 has a drawback that the texture is hard because a binder is used to fix the pigment.

[0005]

Means for Solving the Problems The present inventors solved the above problems by wrinkling the acetate fiber cloth and then continuously saponifying with an alkali, and the operation stability was improved. Found that a fabric having a special pattern can be obtained industrially at low cost.

That is, the present invention is characterized in that a portion having a different acetylation degree is formed in a pattern on the surface of an acetate fiber cloth, and the acetate fiber is colored in a different color according to the acetylation degree. It is a patterned fabric.

The present invention will be described below.

In the present invention, the degree of acetylation means the degree of acetylation when acetate fibers are saponified with an alkali.

There is no conventional special pattern cloth in which portions having different acetylation degrees are formed in a pattern and the acetate fibers are colored differently depending on the acetylation degree.

Such a special pattern cloth of the present invention is a special pattern cloth characterized in that the acetate fiber cloth is subjected to wrinkling, then continuously saponified with alkali, and then colored. It can be manufactured by the manufacturing method.

In the present invention, the acetate fibers are diacetate, triacetate and the like, and the most preferable one is triacetate from the viewpoint of the effect of the invention and the utility value. The acetate fiber may be used alone or mixed with other fibers by blended spinning, mixed weaving or the like. In the case of being mixed, a fiber containing 50% by weight or more of the acetate fiber may be used.

Then, in such an acetate fiber cloth,
The following wrinkling process, saponification process, and coloring process by dyeing or printing are sequentially performed.

Examples of the wrinkling process in the present invention include a method of imparting a wrinkle shape by physical pressure or hot water treatment, and examples thereof include a mangle, an embossing roller, a compression machine, a washer processing machine, and a jet dyeing machine. And the like, or a method in which an acetate fiber cloth is folded and pressed and held.

Next, the cloth is subjected to saponification treatment by continuously applying an alkali. In the present invention, alkali metal hydroxides such as sodium hydroxide, potassium hydroxide, lithium hydroxide and cesium hydroxide can be used as the alkali, but sodium hydroxide is generally used. And as a method of continuously applying such an alkali, a pad steam method can be mentioned. The alkali concentration is preferably 5 to 20 parts by weight based on 100 parts by weight of the acetate fiber. Further, steam is preferably performed at 90 to 150 ° C. for 0.5 to 30 minutes. When the saponification treatment is performed by a batch treatment such as a dipping method, the saponification treatment is uniformly performed, and therefore the batch treatment cannot be used in the present invention.

Next, these cloths are colored by a known method such as dyeing and printing. At that time, dyes used for ordinary acetate fibers such as disperse dyes, color developing dyes and basic dyes are used. It is possible to use dyes and the like, and dyes that are commonly used in cellulosic fibers, such as reactive dyes. Then, a fixing process is performed by a fixing method according to the dye used.

The cloth colored by dyeing, printing or the like as described above is subjected to finishing processing such as softening treatment, if necessary.
The pattern of the as-colored fabric is colored differently depending on the degree of acetylation.

[0017]

Since the present invention is configured as described above, the wrinkle portion generated by the wrinkling process is a portion having a different acetylation degree due to the difference in the pick-up rate of alkali when continuously saponified with alkali. When the cloth in this state is colored, a product having a wrinkle pattern can be obtained due to the difference in the degree of acetylation.

That is, a portion with a small decrease in acetylation degree is easily dyed with a dye for acetate fiber, while a dye with cellulose fiber is less likely to be dyed, and a large decrease in acetylation degree is with a dye for acetate fiber. It is difficult to dye, while dyeing easily with a dye for cellulosic fibers, when dyed with a dye for acetate fibers or a dye for cellulosic fibers, it becomes colored differently depending on the degree of acetylation.

[0019]

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

Example 1 A plain woven fabric having a warp density of 78 yarns / inch and a weft yarn density of 72 yarns / inch was scoured with triacetate / polyester entangled yarns (77% triacetate, 23% polyester) for both warp and weft, and then Hokuriku Kako Machine was used to make hot water treatment at 135 ° C. for 60 minutes at a bath ratio of 1:15 and wrinkle treatment.

The plain woven fabric thus wrinkled was treated with sodium hydroxide 105 g / l, neolate NA3
0 (penetrant, manufactured by Nichika Chemical Co., Ltd.) was dipped in an aqueous solution containing 10 g / l, squeezed, and the treatment liquid was applied to the plain fabric at a pickup rate of 40% by weight. Immediately, steaming treatment was carried out at 107 ° C. for 15 minutes for continuous saponification treatment.

The plain fabric thus saponified is used as a disperse dye in Dispers C.I. I. Blue 94 3.6% o.
w. f. The product was used, dyed with a high-pressure jet dyeing machine at 130 ° C. for 60 minutes, and then dried with a hot-air floating dryer at 120 ° C. for 3 minutes to obtain the product of Example 1.

Comparative Example 1 The same process as in Example 1 was carried out using the same plain weave as in Example 1 except that the saponification process was carried out using sodium hydroxide in the process of Example 1. Got the product.

The product according to the present invention was spot dyed with a special pattern, while the product of the comparative example was a uniform dyed product.

[0025]

EFFECTS OF THE INVENTION The wrinkle-patterned acetate fiber cloth according to the present invention is suitable for the trends of uniqueness and fashionability which have recently been required in various fields such as clothing and interior, and the development of these new applications is possible. It is a stimulus. Further, according to the method of the present invention, the wrinkle pattern can be applied to the cloth with good operation stability and at low cost.

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Claims (2)

[Claims] 1. A special pattern fabric, characterized in that a portion having a different acetylation degree is formed in a pattern on the surface of an acetate fiber cloth, and the acetate fiber is colored differently according to the acetylation degree. . 2. A method for producing a special pattern fabric, which comprises subjecting an acetate fiber fabric to wrinkling, continuously saponifying with an alkali, and then coloring.