METHOD FOR PREPARATION OF POLYESTER COMPLEX TWISTING YARN

摘要

interlacing the highly- oriented undrawn polyester filament yarn with the drawn polyester yarn at before the input of the false-twisting heater or after the untwisting zone with the interlacing number of 20-100 ea./m under the condition that the birefringence ( n) of the highly oriented yarn, the temperature (Pt) to generate maximum heat- stress of the drawn yarn, and the temperature (Ht) of the false- twisting heater satisfy the equation (1)-(2); and blending, twisting. The composite yarn made by this method shows the bulkiness, warmth like wool, as well as mild luster and soft surface touch like natural silk.