HEAT-BONDABLE LAMINATED NONWOVEN FABRIC

摘要

A heat-bondable laminated nonwoven fabric which is a laminated nonwoven fabric formed by uniting the following layers (a), (b), and (c) by thermocompression bonding, characterized by satisfying the following requirements (1) and (2). Layer (a): at least one long-fiber nonwoven fabric layer comprising a thermoplastic resin. Layer (b): at least one ultrathin-fiber nonwoven fabric layer comprising a thermoplastic resin similar to that in the layer (a). Layer (c): at least one composite long-fiber nonwoven fabric layer comprising a thermoplastic resin. (1) The difference in melting point between the fibers constituting the nonwoven fabric of the layer (a) and the fibers constituting the nonwoven fabric of the layer (b) is 30°C or less. (2) The composite long fibers comprising a thermoplastic resin which constitute the nonwoven fabric of the layer (c) contain a low-melting ingredient, the low-melting ingredient having a melting point lower by 40-150°C than the melting point of the fibers constituting the nonwoven fabric of the layer (a).