PU (polyurethane) synthetic leather with high comfort level and production method of synthetic leather

Abstract

The invention discloses PU (polyurethane) synthetic leather with the high comfort level and a production method of the synthetic leather. The PU synthetic leather is prepared from raw materials in parts by weight as follows: 80-100 parts of PU resin, 80-100 parts of dimethylformamide, 2-4 parts of tea saponin, 0.5-1 part of soluble soybean polysaccharides, 1-2 parts of liquid rosin resin, 0.1-0.2 parts of squalane, 1-2 parts of talc, 1-2 parts of bamboo charcoal powder, 4-8 parts of color paste, 5-10 parts of sodium carboxymethylcellulose, 0.2-0.4 parts of sodium salicylate, 0.5-1 part of aluminium chloride and 2-4 parts of a modifying aid. According to the synthetic leather, a natural nonionic surfactant, namely, tea saponin, is added, so that the quality and the ageing resistance of the synthetic leather are improved, and the synthetic leather has auxiliary effects of preventing mildewing, resisting bacteria, resisting oxidation and killing and dispelling insects.

Description

technical field [0001] The invention belongs to the field of synthetic leather production, and in particular relates to a PU synthetic leather with high comfort and a production method thereof. Background technique [0002] PU synthetic leather belongs to polyurethane elastomer, which is similar to natural leather in structure, and has the advantages of good appearance texture, strong mechanical properties, low price, and convenient processing. It has a wide range of applications and a large number of types, and is an ideal material to replace natural leather. , At present, it has largely replaced natural leather with insufficient resources. However, some properties of PU synthetic leather are far inferior to natural leather. For example, natural leather has good water absorption and air permeability, while the nature of PU synthetic leather itself makes it easy to form a dense film, and the water absorption and air permeability are limited. The simulation of synthetic leath...

AI Technical Summary

Problems solved by technology

However, some properties of PU synthetic leather are far inferior to natural leather. For example, natural leather has good water absorption and air permeability, while the nature of PU synthetic leather itself makes it easy to form a dense film, and the water absorption and air permeability are limited. The simulation of synthetic leather Performance, comfort and quality are difficult to improve