What are leather, matching leather, PU and PVC fabrics? What is the differentiation method

genuine leather

Genuine leather is a common word in the leather product market. It is a customary name for natural leather to distinguish synthetic leather. In the concept of consumers, the real leather also has the meaning of non fake. It is mainly made of animal skin. There are many kinds of leather, various varieties, different structures, different qualities, and different prices. Therefore, the real leather is a general name for all natural leather, and also a vague mark in the commodity market

From a physiological point of view, any animal skin has hair epidermis and dermis. Because the dermis contains reticulated small fiber bundles, it has considerable strength and permeability

The epidermis is located under the hair and close to the upper part of the dermis. The thickness of the epidermis composed of epidermal cells of different shapes varies with different animals. For example, the thickness of the cattle skin is 0.5~1.5% of the total thickness; 2~3% for sheep skin and goat skin; The pigskin is 2-5%. The dermis is located under the epidermis, between the epidermis and subcutaneous tissue, and is the main part of the raw skin. Its weight or thickness accounts for more than 90% of the raw skin

Skin matching

Some skins are made from broken skins, and the leather composition is more than 30%. This is called skin blending

Artificial leather-

Artificial leather is the first substitute invented for leather fabrics. It is made of PVC, plasticizer and other additives, calendered and compounded on the cloth. Its advantages are cheap, rich in color, and many patterns. Its disadvantages are that it is easy to harden and embrittle

PU -

PU is a kind of artificial synthetic material, which has the texture of leather and is very durable. It is different from artificial leather. 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 need plasticizer to achieve soft properties, so it will not become hard or brittle. At the same time, it has the advantages of rich colors and various patterns, and its price is cheaper than leather fabric, So it is welcomed by consumers

Differentiation method of genuine leather and artificial leather PU

Leather fabric and PVC artificial leather PU synthetic leather are distinguished by two methods: one is the back of the fabric, which can be seen from the back of PVC artificial leather PU synthetic leather. The other is the burning melting method, which is to take a small piece of fabric on the fire, so that the leather fabric will not melt, while PVC artificial leather PU synthetic leather will melt

Differentiation between PU and artificial leather:

The difference between PVC artificial leather and PU synthetic leather can be distinguished by soaking a small piece of fabric in gasoline for half an hour, and then taking 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