1, in short, "PU is polyurethane, a kind of artificial leather, which is softer and more expensive than PVC". Secondly, PU is an artificial synthetic material, which has the texture of genuine leather, is very durable and cheap.

2. PU synthetic leather is used to replace PVC artificial leather, and its price is higher than that of PVC artificial leather. In terms of chemical structure, it is closer to leather fabric, and it does not use plasticizer to achieve soft properties, so it will not become hard and brittle. At the same time, it has the advantages of rich colors and various patterns, and the price is cheaper than leather fabric, so it is welcomed by consumers.

Butter hide-a kind of leather, commonly known as "oil skin", is a kind of upper leather of cattle. It is a high-grade product with extremely thin coating, strong adsorption and permeability, and good sanitary performance. If there is a problem with the quality of shoe polish or if it is directly coated on the upper of this shoe, spots will be formed. Oil skin is a processing technology of cowhide.

Imitation of butter skin is imitation of the above.

PU soft leather-imitation butter skin is the performance of imitating oil skin with PU material.