| 摘要 |
PROBLEM TO BE SOLVED: To provide a corrugated sheet suitable as a surface sheet having improved performance than a conventional surface sheet used for an absorbing article. SOLUTION: The corrugated sheet 10 is obtained by forming a plurality of groove parts 11 and ridge parts 12 each extending in one direction in a nonwoven fabric 10'. The groove parts 11 and the ridge parts 12 are mutually parallelly and alternately arranged. The groove part 11 has a bottom part 11A flat over the extending direction and a plurality of openings 13 formed in the bottom part 11A at a prescribed interval. The ridge part 12 is formed by convexly raising the nonwoven fabric from the back surface side to the front surface side, and preferably the facing back surfaces of the nonwoven fabric 10' at least at the base part 12A of the raised part keep contact with each other. COPYRIGHT: (C)2008,JPO&INPIT
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