Patent ID: 6054215
Filing Date: 2000-04-25
Classification: D01F,Y10T

Abstract:
A disperse dyeable polypropylene fiber comprising the steps of: making polypropylene resin composition chips by dispersing about 100 parts by weight of polypropylene represented by the following formula (1) and having average molecular weight of 10,000-1,0-00,00, about 1-10 parts by weight of semi-crystalline functional high polymer, about 0.5-5 parts by weight of amorphous functional polymer represented by the following formula (2), and about 0.1-3 parts by weight of additives; and melting and spinning said polypropylene resin composition chips, whereby the disperse dyeable polypropylene fiber is dyeable at density of 0.9 g/cm.sup.3 .about.1.0 g/cm.sup.3, thickness of 0.5 denier.about.50 denier, intensity of 2 g/denier.about.10 g/denier, elastic ratio of 10 g/denier.about.100 g/denier, elongation of 5%.about.100% and absorption ratio to disperse dyes of 3.0.times.10.sup.4 mol/g.about.12.times.10.sup.4 mol/g ##STR6##