Product development of recycled polyester filament

China's regenerated polyester fiber assiduity has a history of further than 20 times, among which the regenerated polyester chief fiber has an earlier development and operation history. Due to quality and other reasons, it's substantially used for filling accoutrements , and only part of the regenerated polyester chief fiber is mixed with other filaments for use in fabrics. In the early days, the waste polyester could only produce reclaimed polyester chief fiber. After nonstop  exploration, we eventually realized the discerned recycled polyester filament yarn for direct spinning assiduity using waste polyester bottle, reaching the advanced position of analogous products in the world. The standard of recycled polyester filament yarn was officially released in 2012.

Here is the content:

• The production of recycled polyester filament yarn

• Product development of recycled polyester filament yarn

The production of recycled polyester filament yarn

Recycled polyester filament yarn can be produced by chemical and physical styles. The main raw accoutrements are polyester plastic bottles and polyester apparel. The raw material of polyester  hair rejuvenescence by physical system is polyester plastic bottle, the main manufacturers are Hangzhou Huachun, Yizheng Zhongxing, Fujian Baichuan, Longfu Huaneng and so on. The raw material of polyester hair regenerated by chemical system is substantially waste polyester fabric, and the main manufacturer is Zhejiang Beauty. In comparison, although the cost of chemical rejuvenescence of polyester hair is advanced, polyester products need to be perished into molecular situations, but this system can fully remove colorings, colors and fine contaminations that are delicate to be separated by physical rejuvenescence system. The quality of recycled raw accoutrements can completely reach the same position as that of synthetic raw accoutrements uprooted from petroleum, while reducing carbon emigrations by 52 and saving energy by 39. From the point of view of processing  system and cost, polyester hair regenerated by physical system has  lower carbon emigration and further energy saving than polyester hair regenerated by chemical system. still, from the point of view of silk quality and function, polyester  hair regenerated by chemical  system has advanced product grade and added value.

Product development of recycled polyester filament yarn

Physical recycled polyester filament yarn has been used for many years. At present, the mature applications are mainly recycled polyester blankets, including carpets, blankets, decorative fabrics, woven socks, gloves, coating, conveyor belt, clothing fabrics, computer embroidery thread, etc., which has formed a certain scale of industrial clusters. In particular, black recycled polyester filament yarn is widely used in blackout curtains, sun umbrella cloth, luggage cloth and other products. Color recycled polyester filament yarn can be oriented according to the needs of users. Bottle spun POY recycled polyester filament yarn can basically replace melt direct spinning products. In order to meet the needs of users, different raw materials can be mixed evenly, melt has strong impurity removal ability, stable viscosity fluctuation is small, no drift phenomenon, full volume rate is greater than 98%, continuous automatic production, advanced equipment can increase the elasticity of products; With small section unevenness, dyeing grade ≥4.0, over-tail rate ≥92%, and full coiling rate ≥92%, it can produce high-quality 83.3dtex / 72F, 166.7dtex / 144F and other recycled POY filament with fineness ranging from 83.3dtex to 666.7dtex. Black or other color filament yarn is developed by adding color masterbatch in the spinning process, which has high color fastness, wear resistance and water washing resistance. Various special specifications and colors can be customized according to the individual needs of users, which overcomes the deficiencies in color of polyester filament yarn regenerated by physical method. However, there are still many technical problems to be overcome in the development of functional and special recycled polyester filament yarn, such as hygroscopic and perspirant, but I believe that we will overcome this problem in the near future.

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