The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 1994
Filed:
Jan. 22, 1993
Applicant:
Inventors:
Hiroyuki Soga, Kawanoe, JP;
Michiyo Matsushita, Iyomishima, JP;
Assignee:
Uni-Charm Corporation, Ehime, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ; A61F / ;
U.S. Cl.
CPC ...
604366 ; 604358 ; 604370 ; 604367 ; 604382 ;
Abstract
Here is disclosed air-permeable and liquid-impermeable backsheet for use in body fluid absorbent articles. Polyolefin plastic sheet containing inorganic filler particles is stretched and then thermo-embossed to obtain the backsheet 1. At least one surface of this backsheet 1 is composed of a rough surface zone 5 and a smooth surface zone 6 so that these two kinds of zones define together a desired surface pattern over the backsheet. The rough surface zone 5 has fine pores 7 for air-permeability and the smooth surface zone 6 facilitates an absorbent core of the body fluid absorbent article to be seen through this smooth surface zone 6.