| 摘要 |
PROBLEM TO BE SOLVED: To provide a stretch nonwoven fabric having high stretchability and high mechanical strength. SOLUTION: The stretch nonwoven fabric 10 comprises elastic fibers and inelastic fibers whose thicknesses in the lengthwise direction are uneven. Preferably, the nonwoven fabric 10 comprises an elastic fiber layer 1 and, disposed on at least one side thereof, an inelastic fiber layer 2 which is substantially inelastic. The inelastic fiber layer 2 comprises fibers whose thicknesses in the lengthwise direction are uneven. The nonwoven fabric 10 is preferably produced by (a) disposing a web comprising lowly stretched inelastic fibers having an elongation of 80-800% on at least one side of a web comprising elastic fibers, (b) subjecting these webs in an ununited state to a hot air treatment of the air-through type and thereby causing thermal fusion bonding at intersections of fibers to obtain a fibrous sheet composed of these webs united with each other, and (c) stretching the fibrous sheet in at least one direction to draw out the lowly stretched inelastic fibers and then releasing the fibrous sheet from the stretching. COPYRIGHT: (C)2008,JPO&INPIT
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