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30
2022
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05
Comparison of production technology between PVC artificial leather and Pu artificial leather
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Artificial leather, plastic products similar to leather. The plastic film is rolled on the cotton cloth or the synthetic resin containing plasticizer is evenly coated on the cotton cloth and then processed. It is soft in nature and has various colors and patterns.
Artificial leather is a kind of material similar to natural leather, which is a mixture of resin raw materials and other additives and obtained after certain processing. At present, the widely used resin raw materials are PVC (PVC) and polyurethane (PU).
In the manufacturing process of PVC leather, the plastic particles shall be melted and stirred into a paste, evenly coated on the T / C knitted fabric substrate according to the specified thickness, and then enter the foaming furnace for foaming, so that it has the softness that can adapt to the production of various products and different requirements. The surface treatment (dyeing, embossing, polishing, matting, grinding and fuzzing, etc.) shall be carried out at the same time when it is out of the furnace, mainly according to the specific product requirements.
The manufacturing process of PU leather is more complicated than that of PVC leather. Because the Pu base cloth is canvas PU material with good tensile strength, it can not only be coated on the base cloth, but also be included in the middle, so that the existence of the base cloth can not be seen outside. The physical properties of PU leather are better than those of PVC leather, with twists and turns resistance, good softness, high tensile strength and air permeability (PVC free).
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