Cotton fabric low-energy environment-friendly processing technology

Abstract

The invention relates to a cotton fabric low-energy environment-friendly processing technology. The technology is characterized in that a cotton fabric is sequentially subjected to hot water pretreatment, biological enzyme treatment, hot water washing, enzyme inactivation and washing. A low-temperature scouring and bleaching agent, an accelerator, a low-temperature hydrogen peroxide active agent and hydrogen peroxide are adopted for treating the cotton fabric in a treatment bath. The technological process is short, the reaction conditions are mild, the raw material cost is low, the COD and AOXvalues in wastewater are low, the technology is green and environmentally friendly, the treated fabric has the good whiteness, capillary effect and breaking intensity, and commensal in the cotton fabric can be effectively removed. The technology is small to fiber damage, and the processed fabric is good in refined effect, high in quality and soft in touch. The printing and dyeing energy consumption is greatly lowered, the water, electricity, steam energy consumption is much lower than a traditional technology, ecologic environment protection is facilitated, and environment-friendly, energy-saving and emission-reduction pressure is greatly relieved.

Description

technical field [0001] The invention relates to a low energy consumption and environment-friendly processing technology for cotton fabrics. Background technique [0002] The purpose of cotton fabric pretreatment is to remove oil, size and natural impurities such as cotton wax on the fabric, so as to reduce the impurity content on the fabric and improve the water absorption and whiteness of the fabric. However, whether it is the three-step method of deboiling, boiling and bleaching, or the two-step method of deboiling, bleaching or one-step decoiling and bleaching, corresponding additives must be used to ensure the quality of deboiling and bleaching. The scouring agent should have excellent permeability, emulsification and dispersibility. During the scouring process, the penetrability of the scouring agent enables it to quickly and evenly penetrate into the interior of the fabric, yarn and fiber, so that the fiber is fully hydrated; the emulsifying property enables it to rem...

AI Technical Summary

Problems solved by technology

However, the descouring and bleaching of traditional cotton fabrics and their blended fabrics consumes a lot of water, heat energy and chemical additives, and discharges a large amount of wastewater containing high-concentration pollutants, which consumes a lot of energy and seriously affects the ecological environment.