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Sheep leather



Sheep leather production sub Clothing (gloves) two leather and shoe upper leather production process. Followed the initial sheepskin leather cowhide leather approach to the 20th century and gradually formed a set of 60's complete unique production process.

Clothing (gloves) leather production process include: liming process. 50 years ago is within the skin immersed in Wagang constantly flip, the production cycle, 8 to 10 days. 60's to use designated slot liming, commonly known as the old gray, medium gray, the new gray three cell method, the production cycle shortened to 6 to 7 days. But the process and from three cell method, operating heavy, difficult to control product quality. By 1973, Shanghai Lian-long new tannery technicians, who use drum roll per gray, through the strengthening of mechanical movement, speed up chemical reactions hides, the production cycle shortened to two days, working hours, 3 times efficiency. Tanning softening process, 1950 has been 2 days and nights to complete by the fermentation of rice bran. In 1958, Lian-element method to soften the leather trypsin transplanted to sheep, only a 2 to 3 hours. Although the production cycle shortened, but the thick leather grain pattern. In 1965, the first tannery in Shanghai for a long time the new application method of trypsin protease softening goat, so that leather and meticulous, was plain-like, significantly improve product quality, shorten production cycle to 1 hour, improved sheep leather softening process. Acid skin shaving technology, cutting-edge 70's with gray leather shaving, but the spine area is poor, reduce the utilization of leather. The early 80s, transplant cowhide leather shaving acid method of success of the entire sheep fiber stretch stretch level, full soft leather body, utilization increased 5%, lowered production costs.
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