Water soluble line: water-soluble whalen filament is an ideal water soluble fiber, is characteristic of whalen varieties, can have O ~ 100 ℃ water soluble temperature, used for various purposes. It is an ideal water soluble temperature and strong elongation, good acid and alkali resistance, resistance to dry heat performance, soluble in water after the tasteless, non-toxic, aqueous solution is colorless, transparent, in a relatively short time internal energy natural biological degradation.