Invention Grant
US07740786B2 Process for making necked nonwoven webs having improved cross-directional uniformity 有权
制造具有改进的横向均匀性的颈缩非织造纤维网的方法

Process for making necked nonwoven webs having improved cross-directional uniformity
Abstract:
Necked nonwoven webs having improved cross-directional uniformity are made by a process which includes the step (prior to neck stretching) of corrugating the nonwoven web to reduce its width from an initial width A to a reduced corrugated width B. The cross-directional uniformity is optimized as the corrugated width B approaches the ultimate width C of the necked nonwoven web.
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