METHOD FOR PRODUCING SPANDEX ELASTIC YARN HAVING IMPROVED DYEING PROPERTY AND PHYSICAL PROPERTY

摘要

PURPOSE: a kind of manufacture elastic yarn spandex, which provides, to be maintained physical attribute and improves dyeability. ;CONSTITUTION: the manufacturing method of elastomeric polyurethane fiber silk, comprising: the pure and mild organic diisocyanate of process two reacts, and diamines or diol chain extender is added; With a step, additive is added. A kind of manufacture contains tertiary amine and organic diisocyanate chain extension diamines or glycol with the step glycol that improved polyurethane elastic filament dyeing property and physical property include: reaction; The step of organic additive is added; With a step, the synthesis compound of 1-7 weight % is added. ;The 2012 of copyright KIPO submissions