The name of water-borne synthetic leather is compared with that of ordinary soluble Du - based synthetic zhi leather (PU leather).To understand what water-based synthetic leather is, it is necessary to make clear the classification and structure of synthetic leather.
There are two kinds of PU synthetic leather: dry PU and wet PU.Dry PU leather is composed of four layers of base cloth, adhesive layer, surface layer and surface treatment layer, while wet PU leather is composed of five layers of base cloth, adhesive layer, foaming layer, surface layer and surface treatment layer. Wet PU leather has one more layer of foaming layer than dry PU leather.Traditionally, the bonding layer, foaming layer, surface layer and surface treatment layer are made from polyurethane (PU) chemicals containing solvents such as DMF.
Strictly speaking, DMF and other solvents are all replaced with water as a solvent of chemical materials, the water solvent adhesive layer, foaming layer, surface layer and surface treatment layer coated on the surface of the base cloth and made of synthetic leather is water-based leather.
On the surface, DMF and other solvents in chemical materials are just replaced with water, but from the perspective of scientific research, from raw material selection, to distribution design, to the process, equipment selection and other aspects have undergone qualitative changes.