Teach You How To Distinguish PVC And PU Skin.

In general, synthetic leather, such as PVC and PU leather, is called collectively. Artificial leather Or imitation leather. Both PVC and PU are polyvinyl chloride (plastics), but the manufacturing processes of these two products are not the same. During the manufacturing process, PVC leather should be first mixed with plastic granules to form paste, then evenly coated on the T/C knitted fabric substrate according to the required thickness, and then foaming into the foaming furnace, so that it has the flexibility to adapt to the production of various products and different requirements. Surface treatment (dyeing, embossing, polishing, matting, grinding surface raising, etc.) is carried out at the same time, mainly according to the specific product requirements.

PU leather is more complex in manufacturing process than PVC leather. Because PU's bottom cloth is a canvas PU material with high tensile strength, besides coating on the top of the base cloth, it can also contain the bottom cloth in the middle, so that it can not see the existence of the cloth. The physical properties of PU leather are better than those of PVC leather. It has good resistance to twists and turns, good softness, high tensile strength and breathability (PVC no). The pattern of PVC leather is made by hot pressing with steel pattern roller. The pattern of PU leather is made of one kind. Decorative pattern The paper is first pressed on the surface of the semi finished leather, then it is cooled down and then the paper leather is separated for surface treatment. The price of PU leather is more than one times higher than that of PVC leather, and the price of PU leather with some special requirements is 2 to 3 times higher than that of PVC leather. The pattern paper needed for general PU leather can be scrapped only 4 to 5 times, and the use cycle of the pattern roller is long, so the cost of PU leather is higher than that of PVC leather.

The scope of application of these two materials is also somewhat different. stay shoes In terms of class, PVC leather is often used in parts or non bearing parts, or for children's shoes; PU leather can be applied to footwear. Fabric Or the part that bears the weight. In bags, more PVC leather is applicable. This is because the goods in the bag are different from the feet in the shoes, which do not emit hot air, and do not bear personal weight.

The difference between PU and PVC is relatively easy. From the side angle, the bottom cloth of PU is much thicker than PVC. There is also a difference in hand feeling. PU feels softer; PVC has a harder handle; it can also be burned with fire, and PU tastes much lighter than PVC.