PROBLEM TO BE SOLVED: To provide a false twist polyester yarn giving low load on the environment and usable as a knitted fabric having thin thickness, stretchable with a small stress and requiring restorative force, and to provide a knitted fabric for a percutaneous pasting material using the false twist polyester yarn.SOLUTION: The false twist polyester yarn is composed of a sheath-core conjugate polyester filament having a core part comprising a polylactic acid and a sheath part comprising an aromatic polyester at a core/sheath mass-ratio of 20/80 to 70/30, and has a fineness of 30-70 dtex and a stretch recovery of 35-45%. The knitted fabric for a percutaneous pasting material is made of the false twist polyester yarn and has specific physical properties.COPYRIGHT: (C)2009,JPO&INPIT【課題】 薄くて低応力で伸長し、かつ復元力を要する編地に用いうる、環境低負荷性のポリエステル仮撚糸、並びに、該ポリエステル仮撚糸を用いた貼布剤編地を提供する。【解決手段】 芯部がポリ乳酸、鞘部が芳香族ポリエステルで構成され、芯/鞘質量比率が20/80~70/30であるポリエステル芯鞘型複合フィラメントからなる仮撚糸であって、繊度が30~70dtexであり、伸縮復元率が35~45%であるポリエステル仮撚糸、及び該ポリエステル仮撚糸を用いてなる編地であって、特定の物性を有する貼布剤用編地。【選択図】 図1
