| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a stretchable composite sheet capable of stretching to an almost constant length in the longitudinal direction with an almost identical strength in the whole region in the lateral direction without forming many irregular shrinks and folds and a method for forming many folds on a stretchable composite sheet. SOLUTION: The stretchable composite sheet 1 is constituted with a non- stretchable nonwoven fabrics 2, 3 extending in the longitudinal direction and plural rows of elastic members 4 extending in the longitudinal direction and arranged with a specific space between rows in the lateral direction, and the elastic members 4 are fixed to the nonwoven fabrics 2, 3 in a stretched state. The composite sheet 1 has many folds which are formed by the repetition of alternating ups and downs in the longitudinal direction created by the nonwoven fabrics 2, 3 and the elastic members 4. The folds 5 extend in the lateral direction substantially continuously, and they are arranged in the longitudinal direction with a roughly equal space between rows.</p> |
