Multifunctional scouring agent for continuous steaming scouring and bleaching of cotton knit and preparation method of multifunctional scouring agent

Abstract

The invention discloses a multifunctional scouring agent for continuous steaming scouring and bleaching of cotton knit and a preparation method of the multifunctional scouring agent. The multifunctional scouring agent for continuous steaming scouring and bleaching of the cotton knit is prepared from the following raw materials in parts by weight of 8-12% of an environment-friendly phosphorus-free chelating dispersant, 20-30% of a low-foam surfactant, 2-5% of a cosolvent, 1-3% of a functional additive, 15-25% of a hydrogen peroxide stabilizer and 25-54% of deionized water. The efficient multifunctional scouring agent is prepared by compounding a plurality of high-molecular polymer shape-retaining phosphorus-free chelating dispersants and sodium polyhydroxycarboxylate with the low-foam surfactant and inorganic salt; the preparation method is simple; and the prepared multifunctional scouring agent integrating scouring permeation, oil removal, emulsification dispersion and hydrogen peroxide stabilization meets the requirements of OEKO-TEX100 environment-friendly textile chemicals, has excellent chelating dispersion capacity, endows fabrics with good whiteness and capillary effect, and obtains an efficient and stable scouring effect.

Description

technical field [0001] The invention specifically relates to the field of textile auxiliaries, in particular to a multifunctional scouring agent for continuous steaming, scouring and bleaching of cotton knitting and a preparation method thereof. Background technique [0002] Cotton knitted fabrics have properties such as stretching, easy deformation, creases, curling and poor dimensional stability. Therefore, the traditional pre-scouring and bleaching treatment generally adopts the loose processing method. The pre-treatment of cotton knitted fabric is the basic process in the dyeing and finishing process, the main purpose is to remove various impurities on the fabric, improve the wettability and whiteness of the fabric, and provide satisfactory semi-finished products for subsequent processing (dyeing, printing, etc.) . At present, printing and dyeing factories still generally use overflow vat dyeing machines for scouring and bleaching. The traditional process generally need...

AI Technical Summary

Problems solved by technology

At present, printing and dyeing factories still generally use overflow vat dyeing machines for scouring and bleaching. The traditional process generally needs to use caustic soda, hydrogen peroxide and some surfactants for treatment at 95-98°C, which has long processing time, large energy consumption, and high energy consumption. High water volume, large fabric damage, many impurities in the discharged sewage, high COD value, high cost of sewage treatment, etc.

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