Compaction-free method of increasing the integrity of a nonwoven

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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156180, 156181, 156290, 156296, 1563082, 1563099, 156356, 428198, 442409, 442411, B27N 304

Patent

active

057074682

ABSTRACT:
There is provided a process which comprises the step of subjecting a just produced spunbond web to a high flow rate, heated stream of air across substantially the width of the web to very lightly bond the fibers of the web together. Such bonding should be the minimum necessary in order to satisfy the needs of further processing yet not detrimentally affect the web. The fibers of the web may be monocomponent or biconstituent and the web should be substantially free of adhesives and not subjected to compaction rolls.

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