Processing method of copper ammonia filament yarn-dyed high-grade fabric

Abstract

The invention discloses a processing method of a copper ammonia filament yarn-dyed high-grade fabric. The method comprises the following technological processes of copper ammonia filament twisting, bobbin polyester thread coating, yarn loosening, yarn dyeing, weaving and gray fabric after-treatment. The yarn dyeing comprises a sodium carbonate pretreatment procedure and a dyeing procedure. A formula of a pretreatment agent adopted in the sodium carbonate pretreatment procedure comprises 2-4 g/L of a pretreatment refining agent, 2-4 g/L of sodium carbonate and 1-5 g/L of hydrogen peroxide with the mass concentration of 27.5%; the heat preservation temperature in the sodium carbonate pretreatment procedure is 80-110 DEG C, the heat preservation time is 30-60 minutes, and a bidirectional circulation mode is adopted for water flow. A reactive dye is adopted in the dyeing procedure, and a sodium carbonate solution with the concentration of 5-10 g/L is adopted as a color fixing agent for color fixation after dyeing. The processing method is high in yield, and the processed fabric is high in strength and physical test index, good in color uniformity, small in fiber damage, high in utilization rate, soft and smooth in hand feeling and elegant in gloss and is the first-choice fabric for high-grade clothes.

Description

technical field [0001] The invention belongs to the field of textiles, and in particular relates to a processing method for cupro ammonia filament yarn-dyed high-grade fabrics. Background technique [0002] With the continuous improvement of people's spiritual and material living standards, people's pursuit of textiles and clothing is also getting higher and higher. In the field of textile and clothing, silk products have always been a representative fabric of high-end luxury. However, in recent years, with the increase in the price of raw material silk, and the finished products of silk products are difficult to take care of and require regular maintenance. These factors have been reduced to a certain extent. Consumer marketing of silk products. [0003] Cupro filament fiber, the appearance of the yarn is comparable to that of real silk. Cupro ammonia filament fiber is an environmentally friendly and naturally degradable environmentally friendly material. It not only reta...

AI Technical Summary

Problems solved by technology

The cupro fabric made of cupro filament fiber has low cost and is a high-grade fabric with high cost performance. However, the promotion of cupro fabric is limited because of the following technical difficulties in the processing of cupro fabric: 1) cupro fabric The filament fiber is extremely delicate and silky, with high fiber affinity. At the same time, because the cross-section of cupro ammonia filament fiber is circular, the fiber structure is relatively uniform, and the dyeing affinity is relatively large, resulting in faster dyeing and high coloring rate, but It is easy to dye flowers and deep dyeing, and it is difficult to dye; 2) Cupro ammonia fiber is relatively smooth. For example, according to the conventional weaving process, even if a high-efficiency air-jet loom is used, the airflow during weaving is easy to blow off the fiber and slip off easily. Yarn bobbin, resulting in dense roads on the cloth surface, affecting the weaving rate and the appearance of the garment; 3) The acid and alkali resistance of the cupro fiber is not good, so the pre-treatment bleaching of the yarn, the post-finishing mercerizing and other processes extremely demanding

In view of the above-mentioned technical difficulties such as dyeing and bleaching of cupro fabrics, most of the cupro fabrics currently on the market are mainly piece dyed, resulting in a series of problems such as single pattern and color, lack of luster and hand feeling in this kind of textiles.

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