Preparation and application method of fabric normal-temperature rinsing system

Abstract

The invention discloses preparation and application methods of a fabric normal-temperature rinsing system. The preparation and application methods belong to the household and industrial rinsing field. According to the rinsing system, a cation bleaching activator N-[4-(trialkylamine methylene)benzoyl]lactam chloride and a hydrogen peroxide precursor are combined to be applied in fabric rinsing, various colored spots on pure yarn or blended fabrics of cotton, linen, silk, wool and chemical fiber and the like can be efficiently rinsed at room temperature or under an approximately neutral condition. The bleaching effect of the fabric normal-temperature rinsing system is much more remarkable than that when the cation bleaching activator is not added. In addition, fabrics will not be subjected to obvious chemical damage. The methods provided by the invention are very suitable for washing Chinese family clothing at room temperature.

Description

technical field [0001] The invention discloses a preparation and application method of a normal temperature rinsing system for fabrics. The bleaching system is suitable for neutral bleaching and washing at room temperature of pure or blended fabrics of cotton, linen, silk, wool and chemical fibers, and belongs to household and industry. Rinse the field. technical background [0002] As a bleaching agent, hydrogen peroxide or hydrogen peroxide precursor needs to work under harsh conditions (high temperature, high alkali). However, most of the current domestic washing conditions in China are carried out at room temperature. Under this condition, the efficiency of hydrogen peroxide rinsing is quite low. The combined use of bleach activator and hydrogen peroxide can make rinsing under milder conditions, greatly improving the rinsing efficiency. [0003] Bleach activator is a peroxyacid precursor, which can react with hydrogen peroxide at low temperature to generate peroxyacid ...

AI Technical Summary

Problems solved by technology

However, TAED has low water solubility, and the activation efficiency of hydrogen peroxide is not high below 70°C; NOBS needs to be applied under alkaline conditions (pH>10), and if the pH is too low (close to neutral), the generated Peroxyacids can continue to undergo nucleophilic substitution reactions with NOBS to generate less active diacyl peroxides, thereby reducing bleaching efficiency

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