Multipurpose wet rubbing fastness improving agent and preparation method thereof

Abstract

The multi-purpose wet rubbing fastness improving agent provided by the invention has the characteristics of good stability of working fluid, good continuous processability of working fluid, high utilization rate of auxiliary agents, no precipitation and no oil drift. , can be used in the same bath with after-finishing auxiliaries, and can be used to improve the dry and wet rubbing fastness of dyed fabrics such as reactive dyes, direct dyes, sulfur dyes, and disperse dyes. The wet rub fastness improving agent has a highly reactive epoxy group in the polyether segment of the molecule, and the isocyanate group can be re-unblocked after high temperature setting after fabric finishing, and can be reactively combined with fabric and dyes. A dense and tough film is formed on the surface of the fabric. The finished fabric is washable, does not feel hard, does not decrease in strength, and has a certain softness, which can reduce the amount of hand finishing agent in the finishing auxiliaries to a certain extent. .

Description

technical field [0001] The invention relates to the technical field of textile chemicals, in particular to a multipurpose wet rubbing fastness improving agent and a preparation method thereof. Background technique [0002] In recent years, with the development of society and the improvement of people's consumption level, consumers have higher and higher requirements for the quality of clothing performance. As an important performance indicator, wet rubbing color fastness is more and more popular among people. Attention, for domestic brand orders and foreign trade export orders, when encountering dark clothing dyes, it is generally required that the wet rubbing fastness should reach level 3 or above, which puts forward higher requirements for wet rubbing fastness. [0003] The problem of poor wet rubbing fastness of reactive dyes, direct dyes, sulfur dyes, and disperse dyes has always plagued dyeing and finishing workers, although various methods have been tried to improve we...

AI Technical Summary

Problems solved by technology

[0003] The poor wet rubbing fastness of fabrics dyed with reactive dyes, direct dyes, sulfur dyes, and disperse dyes has always plagued dyeing and finishing workers. Although various methods have been tried to improve wet rubbing fastness, such as choosing relatively high fastness Dye, fully soaped after dyeing to remove floating color, control the pH value of the dyed fabric surface, and use a finishing agent that has little effect on wet rubbing fastness to reduce the coefficient of friction, etc., but these methods can only improve to a certain extent Wet rubbing fastness of dyed fabrics

[0004] At present, the wet rubbing fastness improvers on the market generally have various problems such as unstable working fluid, easy precipitation, large dosage, and poor persistence of working fluid.

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