On June 13, 2019, the Ministry of Industry and Information Technology of China announced the first batch of specialized new "little giant" enterprises, including xuzhou silk fiber technology co., LTD.

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At the very beginning of its establishment, sierke company insists on doing one-step method functional polyester POY/FDY mixed fiber, which is the first company at home and abroad specializing in research, development, production and sales of one-step method mixed polyester fiber, with an annual production capacity of 100,000 tons.

Currently, there are four generations of products:

The i-generation product, heterogenous shrinkage mixed fiber, realizes the "two-step" production of products that cannot be realized, such as fine denier and ultra-fine denier products. Can be used for processing high-grade clothing, home textiles, shading cloth, decorative fabrics, in 2007 to achieve industrial production.

Based on the "one-step method" technology of heterogenous shrinkage mixed fiber, the company launched the second-generation product -- heterogenous color mixed fiber at the end of 2012. The products are made of heterogenous color mixed fiber. According to the different collocation of raw materials, the fabrics produced in the back channel can reflect the heterogenous shrinkage and double-color mixed fiber effect. Can be used for processing medium and high-grade leisure fashion, bedding, home decoration fabrics.

In August 2013, the third-generation product -- bamboo mixed fiber was launched. Through technical changes, the FDY fiber in the mixed fiber was evenly thin and thick, and bamboo spots were generated between the thick and thin. After dyeing, the color depth gradually changed from deep to shallow with the thinning of the fiber, showing alternating color changes of heavy dyeing and light. Used for the production of casual women's fashion, children's clothing, bedding, home decoration and other fabrics.

Companies led by a one-step different shrinkage of blended fiber silk products and test two industry standards, and four enterprise standard, apply for one-step mixing different contraction fibril products related patents more than 160, which authorized 105 pieces of authorized patent patent has been applied to more than 80% of the company in one-step different shrinkage filaments in the production of products, leading the domestic one-step mixing different contraction filaments the technology development trend in the field of chemical fiber segment.