IP Library › Granted Patent US 8,859,844
Granted Patent B2
US 8,859,844 · App. 11/631,226 · Granted Oct 14, 2014

Sanitary napkin with a tow fiber assembly

Inventors: Tomonari Takeuchi (Tochigi, JP); Satoko Konawa (Tochigi, JP); Keisuke Ebitsuka (Tochigi, JP); Tomotsugu Matsui (Ehime, JP)
Assignee: Diao Paper Corporation
A61F13/511A61F13/51104A61F2013/51178A61F13/5116
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Quick Facts
Patent No.
US 8,859,844
App. No.
11/631,226
Granted
Oct 14, 2014
Kind
B2
Abstract

To provide a body fluid absorbent article having a face sheet 1 , a body fluid permeable member 20 including an assembly of fibers in tows, a body fluid retainable absorbent element AB in this order, and a face-side second sheet 10 , which is interposed between the above face sheet 1 and the above body fluid permeable member 20 with such a positional relation that the above face-side second sheet 10 is at least partly superposed on the above body fluid permeable member 20 ; and embossing is carried out integrally on the above face sheet 1 and the above face-side second sheet 10 while embossing is not carried out on the above body fluid permeable member 20.

Claims (9)

1. A sanitary napkin with a tow fiber assembly, the napkin including a body fluid permeable face sheet, a back sheet, a body fluid retainable absorbent element interposed between the face sheet and the back sheet, and a body fluid permeable member which is interposed between the face sheet and the absorbent element and which includes the assembly of fibers in tows wherein

a face-side second sheet is interposed between said face sheet and said body fluid permeable member with such a positional relation that said face-side second sheet is at least partly superposed on said body fluid permeable member and promotes body fluid permeating and protects against body fluid reversing;

embossing is carried out on said face sheet and said face-side second sheet so as to form jogs which are depressed portions and which are projected downwardly from the under surfaces in said face sheet and said face-side second sheet so that said sheets are unified;

embossing is not carried out on said body fluid permeable member;

said jogs contact said body fluid permeable member;

said face sheet has the basis weight of 8 to 40 g/m 2 and the thickness of 0.2 to 1.5 mm; and

said face-side second sheet is a nonwoven sheet having the basis weight of 15 to 80 g/m 2 and the thickness of 0.2 to 3.5 mm.

2. A sanitary napkin with a tow fiber assembly as defined in claim 1 , wherein an area of said face-side second sheet is smaller than both areas of said face sheet and of said body fluid retainable absorbent element and an area of said body fluid permeable member is smaller than both the areas of said face sheet and of said body fluid retainable absorbent element.

3. A sanitary napkin with a tow fiber assembly as defined in claim 1 , wherein the constituent fiber of the assembly of fibers in tows is cellulose acetate fiber.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 6, 2009
From: TAKEUCHI, TOMONARI; KONAWA, SATOKO; EBITSUKA, KEISUKE; MATSUI, TOMOTSUGU
To: DAIO PAPER CORPORATION
Reel/Frame 022913/0788 →
Priority Claims (4)
JP 2004-194874 · Jun 30, 2004 · national
JP 2004-194876 · Jun 30, 2004 · national
JP 2004-335096 · Nov 18, 2004 · national
JP 2005-031662 · Feb 8, 2005 · national
Continuity (1)
Related Publication 20090247977A1 · Oct 1, 2009