Elastic Nonwoven Fabric With Excellent Elasticity And Synthetic Leather Using That

摘要

The present invention relates to a process for esterifying a hard segment raw material, a diol, with a dicarbonic acid, and polycondensation of a polyol as a soft segment raw material, wherein the diol is 1,4- Butylene glycol (1,4-BD), the dicarbonic acid is composed of dimethyl terephthalate (DMT), the polyol is poly (tetramethylene ether) glycol (PTMG), polyethylene glycol (PEG) or polypropylene glycol (PPG), which is excellent in stretchability, by a spun bonding process.