Artificial leather, it is on textile fabric base or non-woven fabric base, made by various different formulations of PVC and PU and other foam or lamination processing, can be made according to different strength and color, gloss, pattern pattern and other requirements processing, with a wide variety of colors, good waterproof performance, neat edge, high utilization rate and relatively cheap price of genuine leather, but the vast majority of artificial leather, its feel and elasticity can not reach However, most of the artificial leather can't reach the effect of real leather in handfeel and elasticity; in its longitudinal section, you can see fine bubble holes, cloth base or surface film and dry artificial fiber.
Classification
1. According to its composition.
The first is PVC (polyvinyl chloride), the products of its combustion are, water, carbon dioxide and chlorine-containing compounds, and even chlorine gas is produced.
The second is PE (polyethylene), which, after full combustion, theoretically produces only water and carbon dioxide.
The third, and most common, is called PU leather (polyurethane), whose products after full combustion include: water, carbon dioxide, nitrogen gas, and a small amount of nitrogen-containing compounds.
2. By manufacturing method.
Genuine leather
"Genuine leather" is a common word in the leather products market, it is a customary name for natural leather to distinguish synthetic leather. In the concept of consumers, "genuine leather" also has the meaning of non-fake. Animal leather is a kind of natural leather, that is, we often say genuine leather. It is made from animal (rawhide) after tanning and processing by leather factory, and it is made into leather material with various characteristics, strength, handfeel, color and pattern, which is the necessary material for modern leather products.
The processing of genuine animal leather is very complicated, made into finished leather needs to go through dozens of processes: raw hide - soaking - fleshing - degreasing ---- dehairing - soaking alkali - swelling - de-ashing - softening - soaking acid - tanning - dissecting - chipping - retanning - neutralizing - dyeing - oiling - filling - drying - finishing - finishing - coating - finished leather. Its kinds are also very much, according to the material points generally common are sheep leather, cow leather, horse leather, snake leather, pig leather crocodile leather, etc., according to the performance can be divided into two-layer leather, full grain leather, suede, trimmed surface leather, film leather, composite leather, decorative cut layer leather, etc..
Among them, cowhide, sheepskin and pigskin are the three major types of leather used as raw material for leather making.
Recycled leather.
After crushing the waste leather of various animals and leather scraps, it is made by mixing chemical materials. Its surface processing technology is the same as the genuine leather trimmed leather and embossed leather, its characteristic is the leather edge is neater, high utilization rate, cheap; but the leather body is generally thicker, the strength is poor, only suitable for the production of affordable briefcase, trolley bag, cue set and other fixed craft products and affordable belt, its longitudinal section fiber organization is uniform and consistent, can recognize the solidification effect of fluid mixed fiber.
