Second generation Pu artificial leather

Second generation Pu artificial leather

Artificial leather is the first substitute invented for leather fabrics. It is made of PVC, plasticizer and other additives. It has the advantages of low price, rich colors and various patterns, but it is easy to harden and embrittle.

PVC artificial leather, which appeared in the 1930s, has achieved the goal of industrial application to replace natural leather, which is the first generation of artificial leather products. In the 1960s, with the application of polyurethane materials and Nonwovens Technology in artificial leather, the second generation of artificial leather, general PU leather, was born. Polyurethane is a new organic polymer material.

PU synthetic leather is used to replace PVC artificial leather, its price is higher than PVC artificial leather. In terms of chemical structure, it is closer to leather fabric. It does not use plasticizer to achieve soft properties, so it will not harden and become brittle. At the same time, it has the advantages of rich colors and various patterns. The price is cheaper than leather fabric, so it is welcomed by consumers.

There are two ways to distinguish leather fabric from PVC artificial leather and PU synthetic leather: one is to use the back of the fabric to distinguish it. The way is that the back of PVC artificial leather and PU synthetic leather is usually cloth base (or knitted cloth base) which can be seen by eyes; The other is to use the method of burning and melting to distinguish. The method is to take a small piece of fabric and put it on the fire. The leather fabric will not melt, while the PVC artificial leather and PU synthetic leather will melt.

The difference between PVC artificial leather and PU synthetic leather can be distinguished by the method of soaking in gasoline. The method is to use a small piece of fabric, put it in gasoline for half an hour, and then take it out. If it is PVC artificial leather, it will become hard and brittle. If it is PU synthetic leather, it will not become hard and brittle.