| 摘要 |
PURPOSE:To provide a cushioning material which presents a proper feeling, is unlikely to lose the toughness even through a long period of service, and excels in the repulsive elasticity. CONSTITUTION:A cushioning material is composed of the first web layer 11 chiefly containing polyester fibers having mechanical crimps and the second web layer 12 mainly containing polyester side by side type conjugate fibers. The first layer 11 is interposed between a pair of such second web layers 12 which constitute external layers, and thus a laminate web layer 13 is constructed. |
