Silk post-finishing compound softener and preparation method

Abstract

The invention relates to a silk afterfinishing compound softening agent and a preparation method. The softening agent is nontoxic, nonirritating, very low in yellowing possibility, good in re-wettability, biodegradable, and completely harmless to an environment. The method comprises the steps that required water temperature is selected between 0 DEG C and 100 DEG C according to used different quaternization raw materials; 1-30% of ester quaternary ammonium salt is added to water, and stirred; and then 1-30% of hydrophilic amino silicone oil is added and stirred uniformly after ester quaternary ammonium salt is completely dissolved or dispersed in the water and forms a uniform white viscous emulsion. The softening agent has the advantages that 1, the softening agent adopts raw animal or plant synthetic chemicals as main components of the softening agent, and is completely nontoxic, nonirritating, very low in yellowing possibility, and good in re-wettability, and 2, the softening agent is biodegradable and completely harmless to the environment, and is an ideal silk fabric afterfinishing softening agent.

Description

technical field [0001] This application relates to a non-toxic, non-irritating, extremely low yellowing, good rewetting property, easy biodegradation, completely harmless to the environment silk finishing compound softener and its preparation method, which belongs to silk finishing compound With softener manufacturing field. Background technique [0002] At present, the compound softener for silk finishing usually uses the softener with dihexadecyldimethylammonium chloride [alias: surfactant D16-1821] as the main component. This kind of quaternary ammonium salt cationic surfactant is white or slightly yellow paste or solid, easily soluble in organic solvents, slightly soluble in water, and has good softness. It is compatible with cationic, nonionic and zwitterionic surfactants. All have good compatibility, and have always been the first choice for cosmetics, detergents and textile printing and dyeing softeners. However, there are problems: such surfactants are not easy to ...

AI Technical Summary

Problems solved by technology

However, there are problems: such surfactants are not easy to be formulated into high-concentration products, cannot be biodegraded, will cause environmental pollution, and are easily absorbed by sludge during sewage treatment to pollute farmland

In addition, such chemicals are highly irritating and toxic, and the fabric will turn yellow after use, and the fabric rewetability is extremely poor. Therefore, major developed countries have successively enacted regulations to prohibit the use of such chemicals in various softeners. Taste

Although such chemicals have been banned in cosmetics many years ago in China, the use of such chemicals in household or industrial fabric softeners has not been banned or restricted. As a result, domestic textile printing and dyeing enterprises often encounter returns and claim