| 摘要 |
PROBLEM TO BE SOLVED: To provide a bulky back sheet for a disposable diaper having excellent softness of a surface touch. SOLUTION: (1) The back sheet for the disposable diaper is a laminated body of a thermoplastic nonwoven fabric and a liquid impermeable film. The thermoplastic nonwoven fabric has a non-bonding recess and projection molding part and the bulk rate of the nonwoven fabric before imparting the recess and projection molding part is 100% or more. (2) In the back sheet for the disposable diaper, the recessed part area rate of the recess and projection molding part is 5 to 40%. (3) In the back sheet for the disposable diaper, the projection part shape of the recess and projection molding part is roughly semispherical. (4) In the back sheet for the disposable diaper, the thermoplastic nonwoven fabric is constituted of continuous filaments and joined by partial thermocompression bonding. COPYRIGHT: (C)2005,JPO&NCIPI
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