| 摘要 |
PROBLEM TO BE SOLVED: To obtain a polyester union cloth comprising a yarn composed of polyester multifilament yarns different in shrinkage difference as a warp yarn and a crimpable conjugate multifilament yarn prepared by joining two components of polyester polymers different in heat shrinkage in a side-by-side type or a core-sheath type as a weft yarn, having a natural surface feeling, a soft fullness feeling without any core and further moderate stretchability and excellent in good making up appearance. SOLUTION: The characteristic of this polyester union cloth is to compose a warp yarn of at least two components of polyester multifilament yarns different in shrinkage characteristics and a weft yarn of a crimpable conjugate multifilament yarn in which at least two components of polyester polymers different in heat shrinkage are joined in a side-by-side type or a core-sheath type, provide the warp yarn with 150-1,000 turns/m number of real twists and the weft yarn with 7,000-20,000 number of real twists of the twist multiplierαrepresented by the following formula: T=α.D-1/2 [T is the number of real twists (turns/m);αis the twist multiplier; D is the fineness (dtex) of the multifilament yarn].
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