PU And PVC Are Two Kinds Of Shoe Making Materials.

In general, synthetic leather, such as PVC and PU leather, other than genuine leather, is collectively referred to as 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 than PVC leather in manufacturing process. As the bottom cloth of PU is a good tensile strength of the canvas PU, it can be covered in the middle of the bottom cloth in addition to the bottom cloth, so that the fabric can not be seen in the end.

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 pressed on the surface of semi finished leather with a pattern paper first, and then after cooling, the paper leather is separated and treated by 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.

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In the aspect of PVC leather, it is mostly used in parts or non weight bearing parts, or for making children's shoes. PU leather can be applied to shoes fabrics or parts that bear 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.