US2005019526A1PendingUtilityA1

Top sheet for absorbent articles, and method for producing it

Assignee: UNI CHARM CORPPriority: Feb 2, 2000Filed: Aug 17, 2004Published: Jan 27, 2005
Est. expiryFeb 2, 2020(expired)· nominal 20-yr term from priority
A61F 13/51121A61F 13/512A61F 13/51104A61F 13/51Y10T428/24479Y10T428/24372Y10T428/24355Y10T428/24273Y10T428/24405
47
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Claims

Abstract

Provided is a top sheet for absorbent articles including a number of perforations for covering a liquid-receiving surface of an absorbent article. The top sheet is formed of a thermoplastic resin containing a particulate material. The top sheet is provided with fine convex portions of the particulate material on the surface thereof and a plurality of protrusions extending from the surface thereof, and the height of each protrusion from the surface is larger than that of each fine convex portion therefrom.

Claims

exact text as granted — not AI-modified
1 - 7 . (Cancelled)  
     
     
         8 . A method for producing a top sheet for absorbent article, comprising; 
 (a) a step of mixing from 20 to 150 parts by weight of a particulate material with 100 parts by weight of a thermoplastic resin, followed by melt-extruding the resulting mixture to form a sheet material, and    (b) a step of placing the sheet material on the surface of a perforating member, followed by vacuuming the sheet material through perforating holes of the perforating member to perforate the sheet material.    
     
     
         9 . The method for producing a top sheet as set forth in  claim 8 , which further comprises, before the step (b), a step (c) of partially stretching the sheet material by use of needles to form a number of protrusions.

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