A PROCESS FOR PREPARING POLYURETHANEUREA ELASTIC FIBER HAVING HIGH POWER

摘要

PURPOSE: A method of manufacturing polyurethaneurea elastic yarn with excellent power is provided to be used for various purposes due to its feature of excellent elasticity and elasticity recuperative power. CONSTITUTION: The method of manufacturing polyurethaneurea elastic yarn with excellent power is as follows. A prepolymer is manufactured by using glycol having number average molecular weight of 800 - 1300 Dalton and diisocyanate. A polyurethaneurea polymeric composition is obtained by adding a chain extender to the prepolymer. The polyurethaneurea polymeric composition matures polyurethaneurea dope obtained after being stirred and emits it.