Introduction to the advantages of PU artificial leather

　　The development of artificial leather has basically gone through three stages, that is, in the 30s of the 20th century, there appeared PVC artificial leather coated with PVC polymer material, and realized the industrialized practical application on the substitution of natural leather, which is the first generation of artificial leather products.

　　PVC leather in the manufacturing process is mainly the first plastic particles hot melt stirred into a paste, according to the specified thickness uniformly coated in the T / C knitted fabric backing, and then into the foaming furnace for foaming, so that it can adapt to the production of a variety of different products, different requirements of the softness, in the same time out of the surface treatment (dyeing, embossing, grinding, matting, polishing, grinding surface hair, etc., mainly in accordance with the specific product requirements). It is mainly according to the specific product requirements.)

　　PU leather is more complicated than PVC leather in the manufacturing process, because the backing cloth of PU is canvas PU material with good tensile strength, in addition to being coated on the top of the backing cloth, the backing cloth can also be included in the middle, so that the outside can not be viewed in the presence of the backing cloth. the physical properties of PU leather are better than PVC leather, flexing, softness, good tensile strength, and breathable, which is the advantage that PVC does not have.

　　The difference between PU artificial leather and PVC artificial leather is mainly reflected in the following aspects:

　　1, PU feel softer than PVC, good quality, good toughness, generally used for fabrics, can withstand a relatively large tensile force;.

　　2, PU is more expensive than PVC.

　　3, PVC can tear hard, and PU can not; 4, PVC backing fabric is generally more expensive than PU.

　　4, PVC's backing cloth is generally thinner, thinner; PVC more water needle cloth bottom and sweatshirt cloth bottom, while PU's cloth bottom is of higher quality; PVC leather backing is generally textile cloth and knitted fabric, PU leather backing is non-woven fabric; 5, if the fire, PU leather backing is non-woven fabric; PU leather backing is non-woven fabric.

　　5, if burned with fire, the flavor of PU is relatively light, PVC will turn black, odor.

　　6, the specific gravity of PVC is larger than PU.

　　7, PVC grain is deeper, the middle of the foam layer is more obvious.