POLYESTER MULTIFILAMENT YARN

摘要

A polyester multifilament yarn obtained from a polyester polymer obtained by condensation-polymerizing an aromatic dicarboxylate in the presence of a catalyst comprising: a mixture of a titanium compound ingredient (A) comprising at least one of a titanium alkoxide and products of the reaction thereof with a specific aromatic polycarboxylic acid or an anhydride thereof and a specific phosphorus compound ingredient (B); and/or a product of the reaction of the titanium compound ingredient (A) in the mixture with a specific phosphorus compound ingredient (D). The polyester multifilament yarn has a monofiber fineness of 0.3 to 2.0 dtex, a total fineness of 90 dtex or less, and a silk factor of 22 or higher. The yarn obtained has a satisfactory color tone (low value of b*) and is excellent in suitability for knitting/weaving and dyeability.