MANUFACTURING METHOD OF POLYURETHANEUREA ELASTIC FIBER BY HIGH SPEED SPINNING METHOD

摘要

PURPOSE: A method for fabricating polyurethane urea elastic yarn is provided to ensure excellent elongation. CONSTITUTION: A method for fabricating polyurethane urea elastic yarn containing polyol and diisocyanate comprises: a step of mixing diisocyanate and polyol including a first polyol and a second polyol to prepare pre-polymers; a step of adding chain extenders and chain stopper to the pre-polymers to prepare polyurethane urea polymers; a step of stirring and maturing polyurethane urea spinning solution; and a step of spinning. The polyol is polyether-based glycol, polyester-based glycol, or polypropylene glycol.