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What is the difference between PU leather and PVC leather?

What is the difference between PU leather and PVC leather?
With the development of science and technology, the manufacturing technology and process level of raw material synthetic leather have also been greatly improved in recent years. But as ordinary consumers, many people do not know the difference between PVC and PU materials
1. The PU polyurethane coating in the luggage is divided into two types: PU white glue coating and PU silver glue coating. The basic performance of PU white glue and silver glue coating is similar to that of PA coating, but the PU white glue and silver glue coating have a fuller feel, the fabric is more elastic, and the fastness is better, and the PU silver glue coating can withstand high water pressure , and the PU coating has moisture permeability, ventilation, wear resistance, etc., but the cost is high and the weather resistance is poor.

2. Compared with PU coating, the bottom fabric of PVC coating is thinner and cheaper, but the film of PVC coating is not only toxic, but also easy to age. More importantly, the feel of PVC coating is not as good as that of PU coating. The layer is good, and the fabric is still relatively hard. If it is burned with fire, the taste of PVC-coated fabrics is much greater than that of PU-coated fabrics.

3. In addition to the difference in feel and taste between PU and PVC coated fabrics in luggage, there is another point that PU coating is generally leather, while PVC is glue.

4. The manufacturing process of PU leather is more complicated than that of PVC leather. Since the base fabric of PU is a canvas PU material with good tensile strength, in addition to being coated on the top of the base fabric, the base fabric can also be included in the middle. The existence of the base cloth that cannot be seen from the outside.

5. The physical properties of PU leather are better than that of PVC leather, with tortuous resistance, good softness, high tensile strength, and air permeability (without PVC). The pattern of PVC leather is made by hot pressing with steel pattern roller. The pattern of PU leather is to use a kind of pattern paper to heat and press the surface of the semi-finished leather first, wait for it to cool down, and then separate the paper leather for surface treatment. The price of PU leather is more than double that of PVC leather, and the price of PU leather with some special requirements is 2-3 times higher than that of PVC leather. Generally, the pattern paper required for PU leather can only be used for 4-5 times and it will be scrapped. The service life of the pattern roller is long, so the cost of PU leather is higher than that of PVC leather.

In this way, as long as we understand the characteristics between the two, it is much easier for non-professional consumers to identify whether the luggage is PU or PVC. It only needs to distinguish from the following three points: first, the feel, Pu is soft and elastic, while pvc is harder and feels bad to the touch. Second, look at the base fabric, the base fabric of pu is thicker and the plastic layer is thinner, and that of pvc is thin. The third is burning, the taste of pu should be lighter after burning.

Based on the above, we can also draw a conclusion: relatively speaking, the performance of PU leather is better than that of PVC leather, and the quality of PU luggage is better than that of PVC luggage!

women's large capacity leather tote bag


Post time: Oct-20-2022