Production technological process and production line of environment-friendly jean

Abstract

The invention provides a production technological process of environment-friendly jean. The production technological process of the environment-friendly jean is characterized in that a false twisting process is added between a spinning process and a spooling process, slivers are excessively pre-twisted in the axial direction, and twisting turns of the same numbers but in different twisting directions are formed on the silvers; in a dyeing process, sulfur dye containing glucose is adsorbed; an ammonia removal process is conducted in a high-temperature high-pressure tank, so that remaining ammonia in fabric is evaporated, and the evaporated ammonia is collected and delivered back to a mercerizing process so as to be continuously used. The invention further provides a production line of the environment-friendly jean. The production line comprises a spinning unit with a false twisting device, a dyeing unit for conducting the dyeing process and a liquid ammonia finishing unit composed of a fabric mercerizing device, an ammonia removal device, an ammonia recovery circulating device and a controller. The use amount of electricity, water and chemical articles can be saved, production efficiency is improved, labor resources are saved, and the discharging amount of sewage and pollutants is reduced.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a production process flow of environment-friendly denim and a production line thereof. Background technique [0002] Since the first pair of jeans in the true sense was born in 1873, it has gone through a century and a half. In the 19th century, Americans designed heavy work clothes to cope with heavy daily work. After continuous innovation and changes, they have entered the international fashion industry and cleverly catered to social trends. They have become fashion "darlings" all over the world. Today, denim products are not limited to just jeans. Denim clothing shows a diversified development momentum, and the current market is getting bigger and bigger. Because denim fabrics and clothing are suitable for all ages and have strong versatility, it will become one of the fashions favored by domestic and foreign clothing consumers for a long time. [0003] When denim clothing...

AI Technical Summary

Problems solved by technology

However, relatively speaking, the content of sulfide is relatively partial, the purity of the dye is low, it is not easy to oxidize, and the production consumes a lot of water.

[0006] In the finishing process, liquid ammonia mercerizing technology or alkali mercerizing technology will be applied. The method of steaming and washing to remove ammonia used in traditional liquid ammonia mercerizing technology will generate a large amount of waste water; while the conventional alkali mercerizing process requires a lot of There is a large amount of waste alkali discharge, and the COD content in the wastewater is high

[0007] It can be seen that the production of each of the above links will have different degrees of energy consumption, especially denim as a printing and dyeing product is the most significant consumption of water resources

According to data, the dyeing process of every 1,000 pairs of jeans requires 17,980 liters of water.

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