Method and apparatus for thermal bonding high elongation nonwoven fabric
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United States of America Patent
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Jun 22, 2004
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N/A
app pub date -
Jul 16, 1998
filing date -
Jul 16, 1998
priority date (Note) -
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Abstract
A method of forming a thermally bonded, nonwoven polypropylene fabric is provided and includes passing a web of thermally bondable skin-core polypropylene fibers through a calender nip under heat and pressure to produce a nonwoven fabric having elongation. The patterned calender roll is embossed with a plurality of spaced and staggered lands particularly dimensioned, configured and oriented to provide the desired bonding spot size and spacing between the bonding spots such that when utilized in the calender roll, an improved soft polypropylene fabric or cover sheet having a high elongation results.
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