Application of disperse dye microcapsules in leather

Abstract

The invention relates to application of disperse dye microcapsules in leather, which is characterized in that the disperse dye microcapsules are used for coating finishing on the leather. The application comprises the following steps: 1) preparing color paste by preparing 5-10% of disperse dye microcapsules, 75-88% of resin, 2-5% of a filler and 5-10% of a solvent, adding the disperse dye microcapsules in a mixture of the resin and the solvent, and stirring to disperse the disperse dye microcapsules in the resin uniformly; 2) coating by uniformly coating the prepared color paste on the leather, and drying at a temperature of 100-120 DEG C; and 3) ironing by performing low ironing on the dried leather at a temperature of 80-130 DEG C for 1-5 seconds. The leather processed by the method provided by the invention has surface colors with large contrast before and after the processing; the colors are well proportioned and bright, the fixing force for dyes is strong, and water washing at a high temperature does not cause fading; the leather is wear-resistant, and has texture and three-dimensional appearance very similar to those of suede fabric; and the coating method is simple and easy to operate, and can be quickly put into production.

Description

technical field [0001] The invention relates to the technical field of coating finishing, in particular to a method for coating and finishing leather with disperse dye microcapsules. Background technique [0002] The core material of disperse dye microcapsules is a solid disperse dye filter cake. During processing or use, the microcapsules are stimulated by external pressure, friction, pH value, enzymes, temperature, light and other conditions to rupture, so that the encapsulated substances Release slowly into the surrounding environment as needed for use. [0003] Leather has been deeply loved by people for thousands of years, but the early leather has always been brown and black, and the colors and types are very monotonous. Nowadays, with the improvement of people's living standards, the requirements for leather in terms of color and cortex are getting higher and higher. The leather itself has broken through its limitation of keeping warm from the cold, has the function...

AI Technical Summary

Problems solved by technology

[0004] The coating application of disperse dye microcapsules on leather has not been reported. The invention patent "a microcapsule disperse dye dyeing process for superfine fiber synthetic leather" (application number: 200710048049.4) introduces a disperse dye microcapsule on superfine fiber The dyeing process on synthetic leather, the dyeing process is essentially different from the coating process, and the effect of the final product is also very different