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Title:
METHODS OF MAKING COMPOSITE NONWOVEN WEBS
Document Type and Number:
WIPO Patent Application WO/2019/006242
Kind Code:
A3
Abstract:
Disclosed herein are improvements to processes and equipment for the manufacture of composite nonwoven webs comprising a mixture of two or more different fibers and formed from at least two streams of air-entrained fibers. Adjacent the perimeter of an exit port of one of the fiber streams are located a series of spaced tabs and apertures. As a first stream of air-entrained fibers pass the series of tabs and apertures, vortices are formed therein. When mixed with a second stream of air-entrained fibers, the vortices within the first stream of fibers causes increased mixing of the fibers, helping to drive the first fibers deeper into the second stream of air-entrained fibers.

Inventors:
HAYNES BRYAN D (US)
Application Number:
PCT/US2018/040191
Publication Date:
April 25, 2019
Filing Date:
June 29, 2018
Export Citation:
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Assignee:
KIMBERLY CLARK CO (US)
International Classes:
D04H1/492
Domestic Patent References:
WO2005045116A12005-05-19
Foreign References:
US20070141934A12007-06-21
US5695377A1997-12-09
US20080026173A12008-01-31
US20100289169A12010-11-18
Attorney, Agent or Firm:
TULLEY, JR., Douglas H. et al. (US)
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