Leather small common sense
Author： Date：2013-06-17 From： Hits：5
Average person outside of the leather synthetic leather such as: PVC, PU leather, referred to as artificial leather or imitation leather. PVC, PU is PVC (a) in the plastic, but the two products of the manufacturing process is different.
PVC leather in the process of manufacturing plastic particles melt before stir into paste, according to the provisions of the uniform coating thickness on the T/C knit bottom base, and then into the foam foaming furnace, make its have can adapt to produce all kinds of different products and different requirements of flexibility, while out for surface treatment (dyeing, embossing, extinction, grinding surface polishing, burr, etc, are mainly in accordance with the specific product requirements for).
PU leather on the manufacturing processes are more complex than the PVC leather, due to the PU backing is tensile strength good canvas PU material, in addition to the coating on the top of the base cloth, and cloth can be contained in the middle, outside the watch no bottom cloth. The physical properties of the PU leather is better than PVC leather, winding resistance, good flexibility, tensile strength, has the permeability (PVC). The decorative pattern of PVC leather decorative pattern is made by steel roller extrusion of; PU leather decorative pattern is to use a patterned paper ReTie pressure in semi-finished leather surface first, wait for after cooling down again to the separation of paper and leather, do surface treatment. PVC leather to PU leather price is more than twice as high, some of the special requirements of the PU leather price is higher than the PVC leather for 2-3 times. Generally the patterned paper PU leather need only 4, 5 will be scrapped; Pattern roller use cycle is long, so the cost of the PU leather was higher than the PVC leather.
Scope of these two kinds of material have some difference. In terms of footwear, multi-purpose in PVC leather material or not bear weight of the parts, or manufacturing children's shoes; Can apply to footwear fabric PU leather or withstand the weight of parts. In bag bag, apply more is PVC leather. This is because the bag bag of items is different from the wear in the feet in the shoes, don't send out the heat; Need not bear weight.
PU, PVC is relatively easy to difference way, look from the edges of PU is much thicker than the PVC backing, aspect also has the difference, feel the soft PU; Some PVC handle hard; Can also use fire to burn, the smell of PU is light than the flavor of the PVC.