SELF CRIMPING YARN AND PROCESS

摘要

C-14-54-0288 SELF CRIMPING YARN AND PROCESS Polyester polymer is extruded through two converging capillaries at different speeds to merge and form a combined stream. The stream is cooled to form a filament, which is withdrawn at a high speed to give yarn which self-crimps upon heating. In some embodiments, the yarn has a variable denier.