High-brightness surface mirror resin for medium-hardness synthetic leather as well as preparation method and application of high-brightness surface mirror resin

Abstract

The invention relates to the technical field of leather, and discloses high-brightness surface mirror resin for medium-hardness synthetic leather. The resin is prepared from the following raw materials in parts by weight: 160-200 parts of resin, 3-5 parts of a curing agent, 5-9 parts of a solvent, 10-20 parts of a chain extender, 2-4 parts of a catalyst, 1-3 parts of aluminum powder and 2 5-10 parts of polymer diol. According to the high-brightness surface mirror resin for the medium-hardness synthetic leather, as well as a preparation method and an application of the high-brightness surface mirror resin, 160-200 parts of resin is put in a reactor, heated to 150-200 DEG C and stirred for 3-10 minutes, 1-3 parts of aluminum powder, 2-4 parts of catalyst and 5-10 parts of polymer diol are added, the high-brightness surface mirror resin prepared in claim 1 for the medium-hardness synthetic leather is heated to 60-70 DEG C, adhered to a PU resin layer and insulated for 10 minutes. A high-brightness layer prepared from the high-brightness surface mirror resin prepared in claim 1 for the medium-hardness synthetic leather has excellent elasticity and surface toughness and cannot be easilyscratched, and permanent indentation cannot be left during extrusion.

Description

technical field [0001] The invention relates to the technical field of leather, in particular to a high-gloss mirror surface resin for medium-hard synthetic leather, a preparation method and application thereof. Background technique [0002] Leather is denatured and non-perishable animal skin obtained through physical and chemical processing such as depilation and tanning. Leather is composed of natural protein fibers tightly woven in three-dimensional space. There is a special grain layer on the surface, which has natural grain. In the process of human evolution, people found that some plant juices or mineral oils have a certain tanning effect on leather. Raw leather is more breathable and antiseptic through soaking in juice, so that the quality of the board can be improved. With physical and chemical properties such as softness, tear resistance, and bending resistance, the leather of this period really has the characteristics of leather products, and this juice is called a...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a high-gloss mirror surface resin for medium-hard synthetic leather and its preparation method and application. The effect of mirror resin on the high-gloss surface of leather is poor in the application of medium-hard synthetic leather. The surface of the resin is easy to scratch and indentation, which affects the appearance. Users are quite troubled by this problem.