JP3210237B2 - Frost processing method for cellulosic fiber - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD OF THE INVENTION

[0001] The present invention provides a marbling, heather, wash, etc. by treating dyed materials of various cellulosic fiber materials such as yarn, knitted fabric, and cloth with a special reducing agent.
The present invention relates to a frost processing method for cellulosic fibers capable of expressing used clothing tone and the like.

[0002]

2. Description of the Related Art Conventionally, the surface of a product is evenly distributed,
Various methods for performing non-directional matting are known. For example, in fabric processing, there is a method of knitting a yarn in which different types of fibers are mixed during spinning. In this case, a method in which top dyeing is performed in advance, a method in which a fabric is subjected to anti-dyeing, and a method of expressing a heather using a difference in dyeing properties are known. In product processing, a treatment with a chlorine bleach (chemical bleach), a physical treatment with pumice stone and ceramic (stone wash), an enzyme treatment with cellulase (biowash), and the like are known.

[0003] However, there has been almost no method of performing this kind of processing in a cloth state before sewing other than the above-mentioned method, and in the case of product processing, a large loss occurs during drying and finishing after processing. There is a problem that processing irregularities and the like are likely to occur.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above-described circumstances, and has as its object to provide various types of cellulosic fibers, such as yarn, knitted fabric, and fabric, regardless of their shape. For dyed material, marbling, heather,
It is an object of the present invention to provide a frost processing method for cellulosic fibers that can express a wash tone, a used clothing tone, and the like.

[0005]

SUMMARY OF THE INVENTION Namely, the present invention provides dioxide
Using a reducing agent containing thiourea at 1 g / l to 5 g / l,
The pre-dyed cellulosic fiber material is treated at a processing temperature of 9
0 ° C to 95 ° C, treatment time 15 minutes to 60 minutes, bath ratio 1:10
It is characterized in that processing is performed under conditions of 〜1: 30.

In the above-mentioned structure, thiourea dioxide applied to the present invention has a very strong reducing power and is safer in handling and environment as compared with other reducing agents. Thiourea dioxide is a white powder that decomposes at high temperatures as follows.

[0007]

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In the present invention, it is preferable to use 1 g / l to 5 g / l of the reducing agent containing thiourea dioxide as a main component. If the reducing agent is less than 1 g / l, the effect of frosting on the material to be processed is hardly obtained, and 5 g / l
If it is larger than this, the discharge will be excessive and the marbling will be lost.

Further, the processing temperature, processing time and bath ratio of the frost processing of the present invention depend on the amount of the reducing agent used, but the processing temperature is 90 ° C. to 95 ° C., the processing time is 15 minutes to 60 minutes, respectively.
A bath ratio of 1:10 to 1:30 is preferred.

Further, the cellulosic fiber material applied to the present invention may be yarn, knitted fabric, cloth, etc., regardless of its shape. What is necessary is just what was dye | stained with.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

EXAMPLE As a material to be processed, 100% cotton sheeting was used. First, the fabric was dyed under the following conditions. That is,
Cibacron Yellow CR01 (reactive dye manufactured by Ciba-Geigy): 0.226% owf, Cibacr
on Red CR (Ciba-Geigy reactive dye):
315% owf, Cibacron Navy CB
(Ciba-Geigy reactive dye): 3.869% owf, sodium sulfate: 100 g / l, soda ash: 10 g / l, respectively.
Dyeing was carried out at a bath ratio of 1:15 and a temperature of 60 ° C. After dyeing, soaping and washing with hot and cold water were sufficiently performed to obtain a target material for frost processing.

Next, in order to subject such a target material to frost processing, more specifically, to subject the target material to a marbling process, a reducing agent Sengkafrost CM-5 containing thiourea dioxide is used.
(Senka Co., Ltd.) was used at a bath ratio of 1:15 and a temperature of 90 ° C. for 20 minutes using 5 g / l. After draining, washing with hot and cold water was sufficiently performed, and then soft finishing, dehydration, and drying were performed as usual.

[0013] The resulting dough has a unique frosted (marbling) navy color and a unique finish. The fastness was comparable to that of unfrosted material.

[0014]

As described above, according to the present invention, it is possible to eliminate troubles such as loss during processing and processing unevenness, and to easily dye various types of cellulosic fiber materials such as yarns, knitted fabrics and fabrics. On the other hand, it is possible to perform frost processing such as marbling, heather, wash, and used clothes.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) D06P 5/00 D06M 13/432 D06B 1/00

Claims (1)

(57) [Claims] 1. A reducing agent containing thiourea dioxide.
Pre-stained cellulose using 1 g / l to 5 g / l
The system fiber material is treated at a processing temperature of 90 ° C to 95 ° C for a processing time of 15 ° C.
Minutes to 60 minutes, treatment at a bath ratio of 1:10 to 1:30
A frost processing method for a cellulosic fiber, characterized in that: