PVC, PU are polyvinyl chloride (plastic in a), but these two products are not the same manufacturing process.PVC leatherIn the manufacturing process to be the firstPlastic particlesHot melt into a paste, according to the provisions of the thickness of uniform coating on the T / C knitted fabric base, and then into the foam furnace for foaming, it has to adapt to the production of different products, different requirements of softness , In the baked at the same time surface treatment (dyeing, embossing, polishing, extinction, grinding surface, etc., mainly in accordance with the specific product requirements to carry out).
PU leather in the manufacturing process thanPVC leatherTo be more complex, because the PU is a good tensile strength of the canvas PU material, in addition to the top of the fabric can be coated on top, you can also contain the base fabric in the middle, so that the appearance of the base cloth can not see the existence. PU leatherPhysical performanceTo comparePVC leatherGood, resistant to twists and turns, good softness, tensile strength, with breathable (PVC no). PVC leather pattern is made by the steel pattern roll hot pressing; PU leather pattern is a kind of pattern paper first hot pressed in the semi-finished leather surface, waiting for the cooling down after the separation of the paper, the surface deal with. PU leather price than PVC leather to more than double, some special requirements of the PU leather than the price of PVC leather 23 times higher. General PU leather paper can be used only 45 times that will be scrapped; pattern roller use cycle is long, so the cost of PU leather than PVC leather is high.
The scope of application of these two materials is also a certain difference. In the footwear, PVC leather used in the lining or non-weight parts, or the manufacture of children's shoes; PU leather can be applied to the footwear fabric or bear the weight of the site. In the bag, the more suitable for the PVC leather. This is because the items in the bag are different from those that are worn in the shoes and do not dissipate heat; do not bear the weight of the individual.
PU, PVC difference is easier, from the corner of the PU at the end of cloth than PVC thick, feel there are differences, PU feel soft; PVC feel hard some; can also use the fire to burn, PU Taste much lighter than the taste of PVC.