Color-changing synthetic leather and production technology thereof

Abstract

A color-changing synthetic leather comprises a surface layer, a color changing layer and a foam layer, and raw materials of the color changing layer comprise, by weight, 100 parts of polyurethane, 50-60 parts of calcium hydrogen carbonate, 1-3 parts of a heat stabilizer, 4-6 parts of a PVC color paste, 1-2 parts of stress color-changing leather wax powder, 5-20 parts of thermochromic powder, 2-4 parts of graphene powder, 2-5 parts of silver powder and 1-3 parts of nanometer titanium dioxide. The color of the color-changing synthetic leather changes with temperature, and the color-changing synthetic leather changes when being stepped or changes during walking after being made into shoes, so the color of the color-changing synthetic leather changes, and is bright.

Description

technical field

[0001] The invention relates to a synthetic leather, in particular to a color-changing synthetic leather and a production process thereof. Background technique

[0002] Leather is widely used in various fields including automobile industry, sofa, etc. Leather usually includes natural leather and synthetic leather, wherein, synthetic leather is cheaper and easier to mass-produce than natural leather.

[0003] Synthetic leather is a plastic product that looks and feels like leather and can be used instead of it. There are mainly three types of PVC synthetic leather, PU synthetic leather and PU synthetic leather. In the field of synthetic leather, most of them use non-woven fabrics of 100% chemical synthetic fibers (polyester, nylon) as the base, coated with synthetic resin and various plastics.

[0004] At present, bringing more changes to leather products is one of the factors that the industry focuses on research and development at this stage. The existing c...