(Summary description)1, simply put, "PU that is polyurethane, a kind of artificial leather, softer than PVC to be expensive". Secondly, PU is a man-made synthetic material, with the texture of leather, very strong and durable, and inexpensive. For example, CROCODILE bags Oh, 400 or more will be genuine leather Oh, the following is PU leather.
1, simply put, "PU that is polyurethane, a kind of artificial leather, softer than PVC to be expensive". Secondly, PU is a man-made synthetic material, with the texture of leather, very strong and durable, and inexpensive. For example, CROCODILE bags Oh, 400 or more will be genuine leather Oh, the following is PU leather.
2, PU synthetic leather is used to replace PVC artificial leather, its price is higher than PVC artificial leather. From the chemical structure, it is closer to the leather fabric, it does not use plasticizers to achieve the soft nature, so he will not become hard, brittle, while having the advantages of rich colors, patterns, and the price is cheaper than the leather fabric, so it is welcomed by consumers.
PVC and PU are both polyvinyl chloride (a kind of plastic), but the manufacturing process of these two products is not the same.
In the manufacturing process, PVC leather should be hot-melted and stirred into paste, then evenly coated on T/C knitted fabric base according to the specified thickness, and then foamed in the foaming furnace, so that it has the softness that can adapt to the production of different products and different requirements, and surface treatment (dyeing, embossing, polishing, matting, grinding surface pilling, etc., mainly according to the specific product requirements). (according to the specific product requirements).
PU leather is more complicated than PVC leather in manufacturing process, because the backing of PU is canvas PU material with good tensile strength, which can be coated on the top of the backing, but also can contain the backing in the middle, so that the backing cannot be seen from the bottom. The price of PU leather is more than double than that of PVC leather, and the price of some special requirements of PU leather is 2-3 times higher than that of PVC leather. Generally, the patterned paper needed for PU leather can only be used 4-5 times, and the patterned roller has a long service life, so the cost of PU leather is higher than that of PVC leather.
There are also some differences in the scope of application of these two materials. In footwear, PVC leather is mostly used in the lining or non-weight bearing parts, or making children's shoes; PU leather can be used in the fabric or weight bearing parts of footwear. In bags, PVC leather is used more often. This is because the items in the bag, unlike the feet in the shoes, do not emit heat; they do not have to bear the weight of the individual.
PU, PVC is relatively easy to distinguish the way, from the edges of the PU backing fabric is much thicker than PVC, there is also a difference in the feel, PU feel a little softer; PVC feel harder; can also be burned with fire, the taste of PU is much lighter than the taste of PVC.
PU is the abbreviation of the English ployurethane, chemical Chinese name: polyurethane, so many things are imported PU leather; PU general reverse is the second layer of cowhide leather, using a special pressure film process, so that the surface of the leather covered with a layer of polyurethane finish layer and made of PU shift film leather. From the chemical structure, it is closer to the leather fabric, it does not use plasticizer to achieve the soft nature, so it will not become hard, brittle, while having the advantages of rich colors, patterns, it maintains the natural leather breathable, moisture absorption, soft, wear-resistant, strong sense of comfort and other characteristics. It has the same texture as real leather, but more durable and easy to maintain than real leather, so it is welcomed by consumers. With the change of technology is also made of various grades of varieties, such as imported two-layer cowhide, because of the unique process, stable quality, novel varieties and other characteristics, for the current market of high-grade leather, price and grade are no less than the first layer of genuine leather.
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