METHOD FOR MANUFACTURING ACRYLIC SYNTHETIC FIBER HAVING C-SHAPED CROSS SECTION

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing an acrylic synthetic fiber that has a C-shaped cross section and a durable antistatic function.SOLUTION: A method for manufacturing an acrylic synthetic fiber comprises: spinning an acrylic copolymer containing an anionic copolymer component by using a spinneret having a discharging hole having a C-shaped cross section; applying 0.1 to 2 mass% of an antistatic agent comprising an acrylic polymer having a cationic functional group at a terminal and an acrylic acid ester copolymer containing a glycidyl group onto the spun fibers; then squeezing the fibers that has been applied with the antistatic agent by using nip rollers; and then subjecting the squeezed fibers to drying and densifying-treatment processing at a temperature of 130°C or more and 180°C or less for 1 to 5 minutes.