Comprehensive color modifier used for double-face leather and comprehensive color modifying process for double-face leather

Abstract

The invention provides a comprehensive color modifier used for double-face leather. The comprehensive color modifier comprises a color modifier and a color enhancer; the color modifier comprises 40-70parts by weight of a penetrant, 0.5-1.5 parts by weight of dye water and 30-60 parts by weight of water; the color enhancer comprises 5-20 parts by weight of a penetrant, 5-10 parts by weight of a fatting agent and 70-90 parts by weight of water; and the fatting agent is one or more of a phosphate fatting agent, a lecithin fatting agent, a fish oil type fatting agent and a synthesis fatting agent. The invention also provides a comprehensive color modifying process for the double-face leather. The color modifier and the color enhancer in the specific formula are adopted, the corresponding comprehensive color modifying process is then combined, so that the coloring effect of a leather board is greatly improved, the hand feeling of the leather board is smooth, the oil lubrication feeling isstrong, and the color vividness, and the plumpness and the hand feeling of the surface of the leather board are also improved. In addition, a dye is sufficiently absorbed, the use level of the chemical material is low, the discharge of the three wastes is low, and the process is simple.

Description

technical field [0001] The invention belongs to the technical field of leather treatment and processing, and relates to a comprehensive color repairing agent for wool leather and a comprehensive color repairing process for wool leather, in particular to a comprehensive color repairing agent for wool and leather with different colors on the wool board and the leather. Comprehensive dyeing and repairing process of leather. Background technique [0002] Leather processing has a history of thousands of years. After a long period of development, tanning has developed from a simple manual operation to an important industrial technology field. Since the early 1980s, my country's leather industry has developed by leaps and bounds, and it has become one of the most important leather and leather product production centers in the world. my country's cowhide, pigskin, sheepskin and other resources rank first in the world, and its annual output of light leather ranks first in the world,...

AI Technical Summary

Problems solved by technology

[0005] Although there is a relatively mature technology for dyeing leather, for fur leather, due to its special structure composed of two parts, the coat and the leather plate, it is more difficult to process, especially in terms of dyeing effect. It is difficult to balance the multi-faceted requirements of color and feel. When the quilt and the leather board are of the same color, the above problems are not easy to solve. When there is a color difference between the wool quilt and the leather board, especially when the color difference is large

At present, after the dyeing treatment is carried out on the fur leather raw materials, the skin surface of the dyed leather is usually prone to whitening and poor plumpness in the subsequent grinding process

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