METHOD FOR PRODUCING POLYESTER EXTRA FINE MULTI-FILAMENT YARN AND POLYESTER EXTRA FINE FALSE TWIST TEXTURED YARN, POLYESTER EXTRA FINE MULTI-FILAMENT YARN, AND POLYESTER EXTRA-FINE FALSE TWIST TEXTURED YARN

摘要

fineness of single yarn less than 0.9dtex, single-use total number 100-400, birefringence of 0.03 ~ 0.06 In preparing the polyester have a very fine multi-filament yarn, the flow of the molten polymer discharged polyester polymer through a spinneret face, the temperature of 0 ~ 40 distance from the spinneret face in a range of 100 to one atmosphere of 300 was passed through, and after cooling, belongs to house through the spinneret discharge plane at a position of 350 ~ 500 . The fineness of single yarn less than 0.9dtex, single-use total number 100-400, birefringence is 0.03 to 0.06're superfine polyester multi-filament yarn as combustible process, the multi-filament yarn, combustible process measurements are confounded also captured 50 ~ 90 / m, and subjected to air entangling so that, drawing the residence time in the heater false-twist 0.052 ~ 0.300sec, a filament temperature of the running yarn in the heater outlet of the polyester polymer has a glass transition temperature (Tg) of less than 90 ~ 140 high temperature so that the draw ratio is 1.40 to 1.70 times the draw false twist processed by the false twist simultaneously captured and processed, the processing based on the false twist's weight given the emulsion of 1.3 wt% to approximately 3.0 wt%, and the take-up tension of 0.05 ~ 0.30cN / dtex, and the take-up speed to 500 ~ 1200m / min. In addition, under a single company fineness 0.9dtex, single-use total number of 100-400, the birefringence is 0.03 to 0.06 superfine polyester multi-filament yarn, stretched and got the production process concurrent combustible flammable Textured Yarn, combustible simultaneous stretching process subjected to air entangling treatment from before and after, and before and after the bridge raksu air entangling treatment after each 30 to 60 / m, 70 ~ 110 / m.