Coating decoration method for making high-grade waxing leather from low-grade leather

Abstract

The invention relates to the technical field of a leather coating decoration method, and provides a coating decoration method for making high-grade waxing leather from low-grade leather with the advantages that the process is simple, the operation is convenient, used solvents have low toxicity, the natural attributives of softness, ventilation and the like of real leather are maintained, and the qualification rate is high. The method mainly comprises the following steps of leather blank preparation, defect repair, baking, plate pressing, polishing, mechanical foaming, falling, toggling, top coating, beating softening and sand plate pressing.

Description

technical field [0001] The invention relates to the technical field of leather finishing methods, in particular to a finishing method for making high-grade waxed leather from low-grade leather. Background technique [0002] At present, there are defects on the surface of most raw hides, such as uneven skin surface, rough pores, scars, etc., so the raw hides need to be processed. Leather processing is highly valued by leather processors, and the price of processed leather depends on its quality. The same batch of leather, due to the different quality after processing, is finally distinguished by grade, and the price varies greatly. The traditional coating method of leather embryo mainly has the following process steps: repairing → grinding → sizing bottom → drying → re-skinning → primer → sizing bottom → drying → grinding → primer → drying → middle coating → drying → topping Coating→drying→applying brightener→drying→applying feel agent, the process steps are cumbersome, it ...

AI Technical Summary

Problems solved by technology

The traditional coating method of leather embryo mainly has the following process steps: repairing → grinding → sizing bottom → drying → re-skinning → primer → sizing bottom → drying → grinding → primer → drying → middle coating → drying → topping Coating→drying→applying brightener→drying→applying feel agent, the process steps are cumbersome, it takes a long time to work, it takes a lot of labor, and each drying requires a lot of electricity, and it takes many times in the process of finishing Spraying solvents, most of the solvents used are toxic and flood the entire workshop, causing environmental pollution. In addition, the natural properties of the leather obtained after processing with this process are often weakened, affecting the properties of the leather. Using this traditional process The quality of the products obtained is uneven, and some products have a low quality level, which affects the interests of leather processors