US2019382932A1PendingUtilityA1

Shaped nonwoven fabric

Assignee: JNC CORPPriority: Dec 6, 2016Filed: Dec 5, 2017Published: Dec 19, 2019
Est. expiryDec 6, 2036(~10.4 yrs left)· nominal 20-yr term from priority
Inventors:Hirokazu Terada
D04H 1/558D04H 1/54A61F 13/51104D04H 1/76A61F 13/51108D04H 1/4391D04H 1/541D04H 1/5412
48
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Claims

Abstract

The purpose of the present invention is to provide a porous shaped nonwoven fabric, which has excellent texture and good liquid permeability, is bulky, and is less susceptible to liquid return. The present invention provides a shaped nonwoven fabric with sections of relatively low specific volume and sections of relatively high specific volume present in parallel lines on the surface of the nonwoven fabric, wherein the portion with a low specific volume have thermally compressed areas alternating with porous areas and the portion with a high specific volume have ridges that have not been thermally compressed.

Claims

exact text as granted — not AI-modified
1 . A shaped nonwoven fabric in which a portion with a relatively low specific volume and a portion with a relatively high specific volume are linearly present in parallel respectively on a surface of the nonwoven fabric, wherein
 the portion with a low specific volume alternately includes a thermally compressed part and a porous part, and   the portion with a high specific volume includes a ridge that is not thermally compressed.   
     
     
         2 . The shaped nonwoven fabric according to  claim 1 , wherein, in a nonwoven fabric cross section of the portion with a relatively high specific volume on a surface of the nonwoven fabric, a low specific volume region is provided at a center of the nonwoven fabric cross section. 
     
     
         3 . The shaped nonwoven fabric according to  claim 1 , wherein, in a nonwoven fabric cross section of the portion with a relatively high specific volume on a surface of the nonwoven fabric, a high specific volume region is provided at a center of the nonwoven fabric cross section. 
     
     
         4 . The shaped nonwoven fabric according to  claim 1 , wherein a specific volume ratio defined by the following expression is 5% or more and less than 50%.
   Specific volume ratio=specific volume at portion with low specific volume/specific volume at portion with high specific volume×100 (%)

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