Do You Know The PU
Aug 18, 2020
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Hmois-Do You Know the PU
The product is PU Leather Jewelry Box Do you know the pU with leather is a kind of its reverse is the second layer of leather, in the surface coated with a latyer of pU resin, so also known as sticking film leather, its price is cheaper, the utilization rate is high. Its changes with the process alse made into various grades of varieties, is regarded as high-grade leather, the price and grade are no less the first layer of leather.
In 1931, polyvinyl chloride leather was produced. In 1954, foam leather appeared;
In 1956, coating and transfer coating (i.e. release paper method) PVC leather was the first generation of artificial leather;
In 1937, Professor Bayer was the first German professor of the success of research on polyurethane resin;
In 1953, Germany first introduced the patent of polyurethane artificial leather;
In 1962, Japan introduced the patent from Germany; In the same year, Japan Xingguo Chemical Industry Company produced polyurethane artificial leather;
Around 1963, American dupont company; Japan's Kurashiki Rayon Company and Teiren company successively developed what is known as the second generation of artificial leather-a synthetic leather;
In the 1970s, the bundle-like ultra-fine fiber synthetic leather, called as the third generation artificial leather for short, has been developed by Keleli and Toray companies in Japan.
China will be the largest consumer market for PU products in the world, accounting for 28.5% of global consumption in 2007.
Next to North America (31%) , China is expected to become the main global PU consumer market from 2012 to 2015.
China is the world Pu product key raw material MDI and TDI production capacity, production growth fastest region.
China's MDI production capacity is 1.14 million tons and will reach 2.45 million tons by 2012.
China's TDI production capacity of 350,000 tons, to 2012 will reach 1.05 million tons, China will be the world's MDI and TDI production capacity of one of the largest regions.