A low-temperature scouring agent, its preparation method and its use

Abstract

The invention discloses a low-temperature scouring agent and its preparation and use. The low-temperature scouring agent is activated by a low-temperature scouring agent with a mass percentage of 15% to 25% and a low-temperature oxygen bleach with a mass percentage of 75% to 85%. The low-temperature bleaching agent is composed of the following components: alkaline pectinase, sodium butyl ricinoleate sulfate, alkanolamide polyoxyethylene ether, silicone defoamer; the low-temperature oxygen The bleaching agent is composed of the following components: cocamidopropyl betaine, chelating dispersant, activator accelerator, alkali agent, water. The cotton / wool yarn treated with the low-temperature scouring agent has better whiteness, capillary effect, tenacity, hand feeling, fastness to washing and fastness to rubbing than conventional processes. The low-temperature scouring agent of the invention is used in the process of scouring fabrics, which can effectively save the consumption of steam, electricity and water, reduce the pressure of sewage treatment, and reduce environmental pollution.

Description

technical field [0001] The invention relates to the field of textile auxiliaries. More specifically, the present invention relates to a low-temperature scouring agent, its preparation method and its application. Background technique [0002] Cotton / wool blended yarn has both the plump feel and resilience of wool, and the hygroscopicity and wearing comfort of cotton. It is a new type of textile raw material with great market prospects. Clothes made of fabrics made of it are soft to the touch and are generally welcomed by consumers. However, in the pre-dyeing treatment, the traditional wool / cotton yarn is processed under high temperature conditions, using alkali, surfactant and hydrogen peroxide, at a high temperature of 98-100°C for 60-90 minutes, which is easy to damage the wool and cause yarn damage. Large loss of thread strength, low production efficiency, large fabric weight loss rate, and consume a lot of energy. The COD value in the wastewater is high, the process wat...

AI Technical Summary

Problems solved by technology

However, in the pre-dyeing treatment, the traditional wool / cotton yarn is processed under high temperature conditions, using alkali, surfactant and hydrogen peroxide, at a high temperature of 98-100°C for 60-90 minutes, which is easy to damage the wool and cause yarn damage. Large loss of thread strength, low production efficiency, large fabric weight loss rate, and consume a lot of energy. The COD value in the wastewater is high, the process water consumption is large, the energy consumption is high, and the time is long. It not only increases the burden of sewage treatment but also causes damage to textiles. Moreover, high temperature can easily cause fine wrinkles and other diseases, which is a non-environmental-friendly processing technology.

In order to reduce the strength loss of wool cotton yarn and improve production efficiency for weaving, low-temperature scouring agents are used. At present, many manufacturers are also researching low-temperature pre-treatment additives, but they cannot be put into large-scale production due to reasons such as effects and cost prices.

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