Analysis Of Research And Development History And Development Of Synthetic Leather

< p > with the growth of the world population, the demand for "a" target= "_blank" href= "http://www.91se91.com/" > strong > Leather > /strong > /a has doubled, and the limited number of natural leather has long been unable to meet people's needs.

To solve this problem, scientists began to study artificial leather and synthetic leather decades ago to make up for the shortage of natural leather.

Over the past 50 years, the process of research and history is the challenge of artificial leather and synthetic leather to natural leather.

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At the beginning of the P, scientists began to study and analyze the chemical composition and structure of natural leather, and began to enter the PVC artificial leather from nitrocellulose lac. This is the first generation of artificial leather.

Scientists have made many improvements and explorations on this basis, first of all, the improvement of the substrate, followed by the modification and improvement of the coating resin.

In 1980s, there were many varieties of synthetic leather. Besides the common characteristics of synthetic fiber non-woven fabric base and polyurethane micro porous surface, there were differences among varieties.

Other base base impregnation solutions, such as butadiene or acrylonitrile latex, are used to obtain a special combination of non-woven fabrics and polymers. The three layer and two tier coexisting structures are used for making the single layer structure of < a target= "_blank" href= "http://www.91se91.com/" > strong > clothing < /strong > /a >.

In order to obtain different surface styles, in addition to producing smooth leather with flower roller and rubbing leather, the surface of the microporous layer is also made into velvet, called suede synthetic leather.

In order to avoid the destruction of the microporous structure by rolling grain, the dry and wet synthetic leather is also made by pfer coating method (see artificial leather). It is used to make < a target= "_blank" href= "http://www.91se91.com/" > strong > shoes < /strong > /a > boots, bags and accessories.

The emergence of microfiber PU synthetic leather is the third generation of artificial leather.

Superfine fiber synthetic leather is superior to natural leather in terms of chemical resistance, uniformity of quality, adaptability to production and processing, waterproof, mould and denaturation.

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< p > facts show that the excellent properties of synthetic leather can not be replaced by natural leather. From the market analysis at home and abroad, synthetic leather has also replaced natural leather with insufficient resources.

The use of synthetic leather and synthetic leather for bags, garments, shoes, vehicles and furniture decoration has been increasingly recognized by the market. Its wide application range, large quantity and variety are the traditional natural leather which can not be satisfied.

At present, governments at all levels attach great importance to the development of synthetic leather industry.

Synthetic leather has greatly replaced natural leather with insufficient resources and has been used more widely than ever. China has become a major producer of synthetic leather in the world. Manufacturing enterprises are mainly concentrated in coastal cities such as Zhejiang, Jiangsu, Guangdong and Shandong.

In recent years, in order to meet the increasing environmental requirements at home and abroad and the growing health and safety needs of consumers, eco synthetic leather is gaining increasing popularity.

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