Regeneration technique for jean cotton cloth

Abstract

The invention discloses a regeneration technique for jean cotton cloth, which is used for recovering leftover bits and pieces of jean. The regeneration technique for the jean cotton cloth comprises the following steps of: removing impurities from the leftover bits and pieces of jean and cutting the leftover bits and pieces of jean into pieces; desizing the pieces, namely placing the pieces in warm water with the temperature of 60 DEG C, adding alkali oil and desizing powder into the water for soaking the pieces for 10 minutes, and discharging the water soaking the pieces; repeating the step for one time; dewatering, namely discharging water from the pieces; drying the pieces, namely drying the pieces in an environment with the temperature of 100 DEG C; loosening the pieces; and after extracting the cotton material from the pieces, blowing, carding, drawing, spinning and weaving the cotton material to obtain the regenerated jean. In the process of recovering the regenerated cloth, the utilization of a chemical additive is avoided as much as possible, so that the environment is protected; the physical properties of the cotton material, such as toughness, strength and the like, are kept; the regenerated woven cloth can be used for manufacturing the products of the same grade as the product manufactured from the original cloth material; the utilization rate of the cloth is improved; and the pollution to the environment is reduced at the same time.

Description

technical field [0001] The invention relates to a fabric regeneration process, in particular to a denim cotton regeneration process. Background technique [0002] In the field of denim fabric recycling and regeneration, especially in the field of denim cotton fabric recycling and regeneration, it is generally necessary to desizing and fading the recycled fabrics, and then re-spun denim fabrics through the processes of opening, cleaning, carding, drawing, and spinning. Resources can be recycled. The current regeneration process usually uses a large amount of chemical additives in the process of desizing and fading. The chemical additives are used to achieve the shedding of the slurry, and chemical substances such as detergents, bleaching powder, and potassium metal spray powder are used to make the indigo pigment fall off and achieve fading. However, the use of chemical additives will cause corrosion and damage to the fabric itself, reducing the toughness of the yarn in the ...

AI Technical Summary

Problems solved by technology

However, the use of chemical additives will cause corrosion and damage to the fabric itself, reducing the toughness of the yarn in the fabric, resulting in a decrease in the strength of the recycled yarn, and a shorter length of recycled yarn. This recycled fabric can only be used to produce low-grade fabrics. second product

The chemical additives used will cause environmental pollution as the wastewater flows out, and a large amount of water is required for cleaning, which wastes water and energy, and wastes time and chemical materials