What is the Difference between PVC and PU Materials?

Many people do not know, in the end PVC material with PU material, what kind of difference.

The main component of PVC is polyvinyl chloride,The main component of PU is polyurethane. PU is the abbreviation of Polyurethane.

1. PU feels softer than PVC, has good quality and good toughness, is generally used as fabric, and can withstand relatively large tension;

2. The price of PU is more expensive than PVC;

3. PVC can be torn apart with force, while PU cannot;

4. The base fabric of PVC is generally thinner and thinner; PVC has more water needle cloth and sweat cloth base, while PU has higher quality cloth base; the base of PVC leather is generally woven fabric and knitted fabric, and the base of PU leather is non-woven fabric;

5. If burned with fire, PU has a lighter smell, while PVC will turn black and smell bad.

6. The specific gravity of PVC is greater than that of PU.

7. The texture of PVC is deeper, and the foaming layer in the middle is more obvious.

PVC material in the manufacturing process will first hot-melt plastic granules into a paste with stirring, a predetermined uniform coating thickness in the T / C knitted fabric substrate, and then into the foaming furnace for foaming, so that it has to adapt to production of a variety of different products, different requirements softness, while in baked surface treatment (dyeing, embossed, polished, matting, grinding fluff, mainly in accordance with the specific requirements for the product).PU material in the manufacturing process more complicated than the PVC material, since the base fabric is PU canvas PU material good tensile strength, in addition to the above may be coated base fabric, the base fabric may also be included in the middle, so that the outside fabric does not exist in the end. The physical properties of PU leather material than PVC and good resistance to the twists and turns, good flexibility, tensile strength, with permeability (PVC-free). PVC material pattern is formed by pressing a steel pattern roll; PU material pattern is a pattern paper first heat pressed against the surface of semi-finished leather, were waiting for the paper to cool before separating leather, do surface deal with. The price is higher than the PVC material more than doubled, some special requirements of PU material than the price of PVC material to be 2-3 times higher. PU material needed for general pattern paper will come only with 4-5 times scrapped; long life cycle pattern roll, so PU material costs to be higher than the PVC material.PU, PVC difference way easier to see from the corner of the base fabric PU PVC thick than many, also feel a difference, PU's soft some; PVC feel some harder; you can also use fire to burn, PU's To taste the taste of light than PVC lot.