Laminated stretchable sheet and method for producing the same
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United States of America Patent
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Sep 4, 2012
Grant Date -
May 6, 2010
app pub date -
Mar 31, 2008
filing date -
Apr 10, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A laminated stretchable sheet and a method for producing the same of the present invention include: a step of shrinking the continuous sheets W1 and W2 in a width direction Y along folding lines WL extending in the flow direction of continuous sheets W1 and W2 thereby forming slack portions W1b and W2b that can be stretched; a step of placing an elastic member F that can be stretched in the width direction Y on the continuous sheets W1 and W2 while the elastic member F is aligned with the slack portions W1b and W2b; a step of attaching at least opposite end portions of the elastic member F in the width direction Y to the continuous sheets W1 and W2, during the placement, thereby forming a composite sheet; a step of stretching the slack portions W1b and W2b and the elastic member F in the width direction Y; and a step of attaching together the continuous sheets W1 and W2 and the elastic member F intermittently in an intermediate portion between the opposite end portions.
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