Synthetic Leather Production Method

1. Dry PU leather.
The production of dry PU is based on the coating method of PU resin, which is coated on the release paper with various textures. After drying and pasting, the base fabric (knitted fabric, non-woven fabric) is used as the base material to paste together. The process of combining, drying, etc. makes the pattern of the product the same as that of various release papers, and then after printing, it is comparable to genuine leather in terms of touch, toughness and appearance.
The synthetic leather produced by dry-process PU has excellent strength and firm bonding, but its air permeability is relatively poor. This kind of synthetic leather is mainly used in the manufacture of shoes, balls, bags, furniture and decorations.

2. Wet PU leather.
Wet PU leather method: First, cover a layer of PU resin evenly on the textile fiber cloth, and then immerse the textile fiber cloth covered with PU resin into a coagulation tank filled with water. When the PU resin layer is in a semi-solidified state, use the surface The pattern-engraved mold is embossed on the PU resin layer, and then the textile fiber cloth is taken out and entered into a water washing tank to be further matured to obtain a PU synthetic leather with a three-dimensional pattern on the surface; the present invention can reduce the production of synthetic leather cost, simplifying its production process; and the texture of the processed synthetic leather has a strong three-dimensional sense, making it closer to the natural texture of natural fur
The wet PU production technology is a new synthetic method developed after the dry method. The produced synthetic leather has good moisture permeability and breathability, and feels soft, plump and light, and is richer in the style and appearance of natural leather.