Two-layer pile elastic skin and processing process thereof

Abstract

The invention relates to a two-layer pile elastic skin which comprises a two-layer structure, the surface layer is a pile skin, the inner layer is elastic cloth, and a two-layer skin and the elastic cloth are compounded through glue to form the pile elastic skin. The processing process includes the steps that a template is separated; a white blank tanned; the skin is delaminated; waste, namely the two-layer skin 0.35 mm to 0.45 mm thick, generated in the traditional tanning process is delaminated mechanically, and the two-layer skin even in thickness and free of damage is selected; compounding is performed, wherein the pile skin part of the two-layer skin and the elastic cloth are compounded through the glue to form the two-layer pile elastic skin; leather buffing is performed; and dyeing is performed, wherein the two-layer pile elastic skin is obtained through after treatment. The waste generated in the traditional tanning process is delaminated through mechanical equipment and then compounded with the elastic cloth, the thickness of obtained leather reaches the thickness of existing large leather, the tearing strength is higher, the waste is used, the waste disposal cost of a tanning enterprise is reduced, the use rate of the two-layer skin is increased, and the obtained product is high in elasticity and wide in application range.

Description

Technical field [0001] The invention relates to the leather industry and textile industry fields, in particular to a two-layer suede elastic leather and its processing technology. Background technique [0002] The skin structure of mammals and other animals is formed by two layers, an epidermis layer and a dermis layer, which have different tissue structures. The skins obtained from animals are processed into leather and used as follows. First, the skin is depilated to remove the epidermal layer to obtain the dermis layer. The dermis mainly contains criss-crossed collagen fibers, which help maintain the high physical strength of the leather. [0003] The dermis can be divided into a papillary layer on the surface side and a reticular layer on the inner side according to its tissue structure. The papilla layer includes a surface called a grain surface, which has an animal-specific uneven pattern and a smooth and graceful appearance. After cutting and peeling the upper surface la...

AI Technical Summary

Problems solved by technology

And in the skinning process, a large amount of split leather wastes with a thickness of 0.3-0.5 mm will be produced. These wastes will pollute the environment without treatment, and the existing suede skins have low strength and narrow application range. For labor insurance and low-grade clothing, it has no elasticity and poor comfort