METHOD FOR PRODUCING DYED YARN, DYED YARN, AND CARPET

摘要

PROBLEM TO BE SOLVED: To provide a dyed yarn obtained by mixing a polylactic acid fiber obtained by suppressing the reduction of properties of a polylactic acid, and having excellent color fastness to dyeing, with other fibers, to provide a method for producing the dyed yarn, and to provide a polylactic acid-based carpet having excellent soft feeling, voluminousness, wear resistance and color fastness to dyeing.;SOLUTION: The method for producing the dyed yarn includes a step for imparting another dye having dyeing behavior different from that of a disperse dye to a mixed yarn obtained by mixing fiber of polylactic acid with other fibers, and thereafter imparting the disperse dye thereto.;COPYRIGHT: (C)2009,JPO&INPIT