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Title:
APERTURED NONWOVEN
Document Type and Number:
WIPO Patent Application WO/2021/208008
Kind Code:
A1
Abstract:
The present invention relates to apertured nonwovens (30) comprising a first nonwoven layer comprising cellulose-based fibers and a plurality of apertures (302), wherein the plurality apertures (302) have a minimum aperture distance between two adjacent apertures which has a relative standard deviation no greater than about 40%, as measured according to the Aperture Quality Test, and either the apertures (302) has an aperture size no greater than about 2.2mm 2 and have an occlusion no greater than about 9%, as measured according to the Aperture Quality Test, or wherein the apertures (302) have an aspect ratio no greater than about 2.5 as measured according to the Aspect Ratio Test. The present invention also relates to an apertured nonwoven (30) comprising a first nonwoven layer comprising cellulose-based fibers and a plurality of apertures (302), the apertures (302) formed by pin-hole aperturing, wherein the plurality apertures (302) have a minimum aperture distance between two adjacent apertures which have a relative standard deviation no greater than about 40%, as measured according to the Aperture Quality Test.

Inventors:
LIU XIAOXIN (CN)
TANG LI (CN)
SUN KUN (CN)
WANG FANCHENG (CN)
CHEN MENG (CN)
Application Number:
PCT/CN2020/085097
Publication Date:
October 21, 2021
Filing Date:
April 16, 2020
Export Citation:
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Assignee:
PROCTER & GAMBLE (US)
LIU XIAOXIN (CN)
TANG LI (CN)
SUN KUN (CN)
WANG FANCHENG (CN)
CHEN MENG (CN)
International Classes:
D04H1/425; A61F13/511; A61F13/512; A61F13/514; A61F13/515; D04H1/4258; D04H1/4266; D04H1/4374
Domestic Patent References:
WO1996009024A11996-03-28
WO2021007762A12021-01-21
WO2011090974A12011-07-28
WO2015134359A12015-09-11
Foreign References:
JP2009153740A2009-07-16
CN107249535A2017-10-13
US20040122396A12004-06-24
CN107641896A2018-01-30
CN110344174A2019-10-18
CN107460634A2017-12-12
JP2009153740A2009-07-16
Attorney, Agent or Firm:
LIU, SHEN & ASSOCIATES (CN)
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