PROBLEM TO BE SOLVED: To provide an elastic material which has excellent fitting performance to the body, slip-down preventing performance, such performance that the elastic material is soft and has excellent skin texture and a low skin irritation, which further realizes so thinness and lightness that a shape thereof hardly affects an outerwear when the outerwear is worn, and which can be used suitably in a disposal diaper.SOLUTION: The elastic material is obtained by inserting several pieces of polyurethane elastic fibers between a pair of nonwoven fabrics and joining the inserted polyurethane elastic fibers to the nonwoven fabrics and is elongated and contracted to at least one direction. The elastic material has the basis weight of 50-200 g/m2, the thickness of 0.5-5 mm and the elongation rate of 50-300% when elongated.SELECTED DRAWING: NoneCOPYRIGHT: (C)2016,JPO&INPIT【課題】身体への良好なフィット性能とずり落ち防止性能、柔らかくて肌触りが良く肌への刺激性が低い性能に加え、着用時にアウターに響きにくい薄さと軽さを実現する使い捨ておむつに好適に使用できる伸縮部材の提供。【解決手段】一対の不織布間に複数本のポリウレタン弾性繊維を挿入して接合した少なくとも一方向に伸縮する伸縮複合材料であって、目付が50g/m2以上200g/m2以下、厚みが0.5mm以上5mm以下、かつ、伸び切り伸長率が50%以上300%以下であることを特徴とする前記伸縮複合材料。【選択図】なし
