The hottest regenerated filament polyester fiber b

2022-09-19
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Recycled filament polyester fiber blows low-carbon green wind

speaking of the concept of recycled filament polyester fiber, many people may feel very strange. In fact, this kind of fiber is processed from recycled waste polyester (bottles, waste silk, waste textiles, etc.). This kind of fiber can be made by physical and chemical methods respectively, and its performance is equivalent to that of primary filament polyester fiber

multiple benefits of recycling

recycled filament polyester fiber is divided into many varieties. Among them, recycled FDY filament polyester fiber can be used not only as blanket bottom silk, Oxford cloth, binding cloth, but also as silk like fabric. Recycled DTY filament polyester fiber can also be blended with cotton, wool, hemp, silk and chemical fibers for weaving or knitting, producing woven and knitted fabrics of various specifications, and can be used to make jackets, casual clothes, suits, shirts, underwear, T-shirts and towels, bath towels, bed sheets, etc. Recycled filament (industrial) polyester fiber is mainly used in tire cord, conveyor belt, canvas, vehicle safety belt and conveyor belt

the production of recycled filament polyester fiber that meets the national primary filament polyester fiber standard is more about the recycling of waste polyester. This will not only help restructure China's petrochemical raw material structure, reduce dependence on oil resources, effectively supplement the supply of raw materials, but also save land, solve the problem of land competition for grain and cotton, reduce environmental pollution, and realize low-carbon economy and green economy

realize the acceleration and expansion of large-scale production

as a representative of low-carbon economy and green economy, recycled filament polyester fiber has achieved rapid development in recent years with its green and sustainable characteristics and broad market prospects, and the technological progress of recycled chemical fiber industry is obvious

As one of the 350 key industrial enterprises in Shandong Province, longfu Huanneng Technology Co., Ltd. has always paid more attention to the development and production of functional, differentiated and high value-added products for industrial use in the development of new products. After being keenly aware of the development space of new fibers, longfu began to tackle key technical problems in 2007, and has independently developed three core technological achievements, including "using waste polyester bottle chips to produce polyester filament", "using waste polyester bottle chips to produce polyester industrial yarn" and "using waste polyester bottle chips to produce polyester full draft yarn", It has passed the provincial scientific and technological achievements appraisal and the ministerial achievements appraisal organized by the Textile Industry Federation, and the overall technical level has reached the international advanced level, filling the domestic gap. Among them, the self-developed liquid-phase tackifying and tackifying homogenization technology of waste polyester has even reached the world's advanced level. According to di Gangli, deputy general manager of Longfu, at present, the recycled polyester filament independently developed by longfu has made a major breakthrough, becoming the first enterprise in China to achieve large-scale production, and building the world's only complete circular economy industrial chain integrating waste polyester treatment, recycled polyester filament production and recycled polyester textile weaving. "Now longfu has formed an annual production capacity of 80000 tons of recycled polyester filament and 30000 tons of recycled polyester blanket. It has become a leading enterprise in the recycling of waste polyester in China and has great influence at home and abroad." Di Gangli said

development vision of catching up with and surpassing the advanced level

with the improvement of recycling and processing technology, recycled polyester has broken the gap between large and small chemical fibers in the past. In terms of reproduction, the gradual improvement of product quality gradually weakens the advantages of primary spinning. In addition, the regenerative friction coefficient is a constant range. The input-output ratio of polyester industry is higher than that of primary polyester industry, and recycled products gradually seize the primary polyester fiber market. In terms of product performance, there have been recycled polyester products that can partially or even completely replace the original polyester products. In terms of the price of raw materials, the gap between the price of bottle chips for filament and the price of original chips is also shrinking. The original price difference is more than 2000 yuan/ton, and now the price difference is about 1000 yuan/ton. With the continuous expansion of the field of renewable polyester replacing primary polyester, the growth of renewable polyester industry has become an important development force of polyester industry

during the 12th Five Year Plan period, China's renewable polyester production capacity will reach 8.3 million tons/year and the output will reach 6 million tons/year through electric measurement. Unlike the primary polyester products, which are mostly used for spinning and weaving, the uses of recycled polyester products show an obvious diversification trend, and are still expanding. At present, the application market of recycled polyester products covers nonwovens, carpets, home textiles, automotive textiles and other fields, with nearly 100 kinds of products. In addition, non fiber applications are developing towards diversification and high-tech content, such as bottles, sheets and films for food grade packaging, various packaging brackets, plastic steel belts and injection molded parts for non food packaging, engineering plastics and other high-end products

"however, at present, there is a certain gap between China's recycled chemical fiber products and the world's advanced level in terms of raw materials, varieties, technology, production scale, product application, etc. in particular, the R & D capacity of functional and differentiated recycled chemical fiber products is insufficient, and the application field of products needs to be further expanded." Di Gangli said

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