Commonly known as the spinning skin, it is divided into two types according to the thickness: one type (0.9~1.5m/m) and the second type>1.5mm. There are many leather appearance patterns. Generally, the texture is fine, uniform, uniform in color, and the surface is not scratched or cracked.
The essence of artificial leather is also formed by blown film molding of polymer plastic PVC, PE, PP, etc., and various color pastes are sprayed on the surface. The artificial leather used for the sofa swivel chair pays great attention to the hand feeling, and should be smooth, soft, elastic and odorless. The fracture length should be ≤80%, and it is not easy to decolorize, that is, the color rubbing fastness should be above 4.3.
(2) Natural leather
Natural leather mainly refers to the processing of various animal skins. At present, the leather used in furniture is mainly cowhide. Its appearance is consistent with artificial leather, but its tensile strength and tear strength are better than artificial leather. The disadvantage is that the appearance of the pattern is not uniform, especially in the calfskin, there are also extreme scars, and the skin around the defective tendon is less elastic. The natural skin is also divided into layers according to the thickness of the head layer and the second layer of skin. The top layer skin is the surface of the animal skin. It has good elasticity and softness, and the price is high. The thickness is between 0.8 and 1.5. The second layer of skin is peeled off from the animal skin. The skin has a thickness of 2.8~3.5, and the elasticity is poor, but the strength is good, and the tensile strength is above 200N/M2.
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