| 摘要 |
PROBLEM TO BE SOLVED: To provide a new cation dyeable hollow cross section polyester filament which has dyed brilliance which general purpose polyesters filaments do not have, has more excellent strength and wear resistance than those of conventional cation-dyeable polyester filaments, and is excellent in a lightweight touch which is the defect of polyester filaments, and to provide a new blended polyester yarn which comprises the hollow modified cross section polyester filaments and can form well swollen woven or knitted fabrics. SOLUTION: This cation dye-dyeable polyester filament comprises a modified polyester copolymerized with 0.1-6.0 mol% of a specific phosphonium sulfonate and having an intrinsic viscosity of≥0.6, has a hollow single filament cross-sectional shape, and has a percentage of single hollowness of≥5%. Composite filaments prepared by blending the cation dyeable hollow cross section polyester filaments with polyester filaments having a boiling water shrinkage percentage difference of 4-45% between the cation dyeable hollow cross section polyester filaments and the polyester filaments give a woven or knitted fabric having a good hand. COPYRIGHT: (C)2009,JPO&INPIT
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