In fact, the so-called artificial leather is not leather, but a material synthesized from petroleum and other minerals. In terms of commonly used imitation leather seats, it is essentially a kind of artificial leather. In our commonly used artificial leather, it mainly has PVC, PU and other types. Among them, the most important is a kind of imitation leather material which is relatively cheap, more widely used and more common. In terms of PU material, the quality will be relatively better, and it is closer to genuine leather, and the price will be higher.
In the preparation stage of our leather, if it belongs to primary processing, after removing some useless things on animal skin, such as fat, hair, soluble protein, etc., we can continuously process the fibrous collagen of animal skin, which can be conducive to later processing and improve the quality of leather.
In our tanning stage, there are the main key points of leather denaturation, and after we have passed many chemical methods, we can make some changes in the structure of some fiber collagen of animal skin, and make its skin constantly turn into leather. At the same time, it also determines the performance and quality of the obtained leather. Tanning mainly includes chrome tanning, vegetable tanning and other types. In terms of vegetable tanning, tannic acid of natural vegetable tanning agent can be used for tanning, and there are no harmful substances in natural environmental protection. Compared with leather, it is more flexible and more single in color. Chrome tanning can be used as tanning agent after the use of heavy metal chromate. In terms of cortex, chrome tanning is relatively softer, richer in color and relatively poor in environmental protection. In terms of process, chrome tanning is mainly divided into primary tanning, grading, retanning and so on.
In the finishing stage, it can be used as a kind of leather after finishing. In terms of finishing, it can make the leather surface form all kinds of luster, color and appearance, and make the leather obtain certain maintenance and waterproof. The main processes are chipping, dyeing, neutralization, slicing, buffing and embossing Decorations, etc.