PURPOSE: To obtain titled yarn having durable stain resistance, by copolymerizing a specific polyoxyalkylene glycol component at least one part of ends of polyester containing an alkylene terephthalate unit as a main constituent unit and quenching yarn after extrusion.
CONSTITUTION: A modified polyester copolymerized with 0.5W10wt% of a polyoxyalkylene glycol component shown by formula R1O(R2O)n (R1 is monofunctional organic group containing no active carbon; R2 is alkylene; n is 20W140 integer) at least part of ends of a polyester containing an alkylene terephthalate as a main constituent unit is subjected to melt spinning. The extrusion hole of a spinneret consists of a flat slit or two or more flat slits. The ratio a/b of length of of long side of the slit to length b of short side of the slit is ≥10, preferably ≥25, draft is ≥300, preferably ≥1,000 and winding rate is ≥4,000m/min, preferably ≥4,500m/min.
| JPH06141394 | METHOD AND APPARATUS FOR ELECTROACOUSTIC CONVERSION |
| JPH0359139 | PATTERN WEBBING FOR SEAT BELT |
SUZUKI MOTOYOSHI
KOBAYASHI SHIGENOBU
| JPS5643321A | 1981-04-22 | |||
| JPS53139821A | 1978-12-06 | |||
| JPS6052832A | 1985-03-26 | |||
| JPS5766118A | 1982-04-22 | |||
| JPS609911A | 1985-01-19 |