| abstract |
PROBLEM TO BE SOLVED: To provide a dyeable polypropylene fiber that can be sufficiently dyed with a disperse dye, has excellent dyeing fastness, and can be obtained with good operability. SOLUTION: Polypropylene fibers containing 1 to 50% by mass of a copolyester in polypropylene, the copolyester comprising terephthalic acid and two or more glycol components, wherein the glycol component is ethylene glycol, 1 , 4-butanediol, 1,6-hexanediol, a dyeable polypropylene fiber having a crystal melting point of 110 to 190 ° C. [Selection figure] None |