Variable stretch material and process to make it
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United States of America Patent
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Oct 15, 2002
Grant Date -
N/A
app pub date -
Jun 30, 1999
filing date -
Jun 30, 1999
priority date (Note) -
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Abstract
A stretchable nonwoven web, or laminate of a stretchable nonwoven web and an elastic sheet, is treated with a plurality of bond lines in one or more regions thereof to provide controlled stretching properties. In one embodiment, the nonwoven web or laminate has at least one first region having a plurality of bond lines in a direction parallel to the machine direction and at least one second region having a plurality of bond lines in a direction parallel to the cross-machine direction to provide controlled stretching in different directions in different regions of the web. The bond lines can be substantially continuous in length, or segmented. When segmented bond lines are employed, the length of the bond line segments and spacing between them can be varied to import variable stretch properties to the nonwoven web or laminate.
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