Coating processing technology for imitated oily frosted leather

Abstract

The invention discloses a coating processing technology for imitated oily frosted leather. The coating processing technology comprises the following steps of carrying out drying and finishing on crust leather, carrying out roller coating of grease, carrying out standing, carrying out ironing with a sand roller, carrying out pre-priming-coating, carrying out priming coating, carrying out ironing with a smooth roller, carrying out floating coating, carrying out top coating, carrying out standing, carrying out ironing with the smooth roller, carrying out ironing with a pore roller, carrying out ironing with the smooth roller and carrying out surface treatment so as to obtain the finished leather, wherein the grease used in the process of roller coating of the grease is prepared from 100-125 parts of water, 75-80 parts of mixed emulsion of sulfated synthetic grease and phospholipid, 20-25 parts of chlorinated paraffin and 100-125 parts of penetrant. According to the coating processing technology, the finished leather has the frosted touch feeling, is high in oiliness feeling, good in air permeability and perspiration performance and soft and full in leather body, the comfortable and natural genuine leather feeling and excellent hygienic performance of natural leather are better highlighted, and leather products such as shoes, boots, bags and suitcases and sofas made of the finished leather are attractive, elegant and noble and belong to high-quality products in the leather products; and meanwhile, excellent rubbing color fastness is achieved, and the dry rubbing resistance, the wet rubbing resistance and the sweat rubbing resistance can all reach the fourth level or above.

Description

technical field [0001] The invention relates to the technical field of tanning chemistry and engineering, in particular to a finishing process for imitation oil nubuck leather. Background technique [0002] Nubuck leather is a high-grade leather product, but due to the high quality requirements for raw leather, and the limitation of the quality, model and technical level of the abrasive cloth in the grinding process, it often causes a certain degree of leather loss and waste. Imitation nubuck leather, that is, use specific leather finishing chemical materials to coat the surface of crust leather, and then use high-temperature mechanical action such as ironing to achieve a similar effect to that of sanding and raising with emery cloth; imitation oil nubuck leather is evolved from imitation nubuck leather, Not only is the finished leather required to have a frosted touch, but also a strong oily touch. The existing oil-like nubuck leather, in order to endow the finished leath...

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present application provides a finishing process for imitation oil nubuck leather, which solves the technical problems of low operability, safety and environmental protection of the solvent-based oil used in the preparation of oil imitation nubuck leather in the prior art, and realizes The mixed emulsion of sulfated synthetic oil and phospholipid is compounded with chlorinated paraffin. The compounded emulsion particles are uniform, coated on the surface of crust leather, and ironed at high temperature to promote the uniform distribution of oil in the leather and on the leather surface, giving the finished product Long-lasting oily feel on leather