Sanitary napkin

• US 20060282059A1
• Filed: 04/11/2006
• Published: 12/14/2006
• Est. Priority Date: 06/10/2005
• Status: Active Grant

• Current Assignee: Unicharm Corporation
• Original Assignee: Unicharm Corporation
• Inventors: Yoshimasa, Wataru, Fujikawa, Shinobu, Tanio, Toshiyuki
• Granted Patent: US 7,621,899 B2
• Time in Patent Office: Days
• US Class Current: 604/385.170
• CPC Class Codes: A61F 13/47218 with a raised crotch region, e.g. hump
• CPC Class Codes: A61F 13/47227 for interlabial use
• CPC Class Codes: A61F 13/47263 with activating means, e.g. elastic, heat or chemical activatable means

Abstract

A sanitary napkin includes a main body having a liquid-absorbent layer for absorbing and retaining liquid and a projection disposed on a body surface of the main body. At least a portion of the projection is separably fixed to the body surface of the main body through a temporarily fixing means.

Claims

1. A sanitary napkin comprising:

a main body having a liquid-absorbent layer for absorbing and retaining liquid; and

a projection disposed on a body surface of the main body,

wherein at least a portion of the projection is separably fixed to the body surface of the main body through a temporarily fixing means.

2. The sanitary napkin of claim 1, wherein another portion of the projection is firmly fixed to the body surface of the main body through a firmly fixing means which provides a higher bond strength than the temporarily fixing means.

3. The sanitary napkin of claim 2, wherein the projection has front and rear portions and an intermediate portion located between the front and rear portions, the front and rear portions being firmly fixed to the body surface of the main body through the firmly fixing means, the intermediate portion being separably fixed to the body surface of the main body through the temporarily fixing means.

4. The sanitary napkin of claim 3, wherein the projection is configured to face the intergluteal cleft of a wearer at the intermediate portion.

5. The sanitary napkin of claim 2, wherein the projection is divided into front and rear portions, the rear portion being separably fixed to the body surface of the main body through the temporarily fixing means, the front portion being firmly fixed to the body surface of the main body through the firmly fixing means.

6. The sanitary napkin of claim 5, wherein the rear portion has a tab at a rear end thereof.

7. The sanitary napkin of claim 6, wherein the tab is not fixed to the main body.

8. The sanitary napkin of claim 2, wherein the projection includes a longitudinally extending connection sheet and an upper structure, the connection sheet being fixed to the body surface of the main body through the temporarily fixing means and firmly fixing means, the upper structure being firmly fixed to a body surface of the connection sheet.

9. The sanitary napkin of claim 1, wherein the whole projection is separably fixed to the body surface of the main body through the temporarily fixing means.

10. The sanitary napkin of claim 1, wherein the temporarily fixing means is provided by partially pressing a component of the projection against the body surface of the main body.

11. The sanitary napkin of claim 1, wherein the temporarily fixing means is provided by partially fusion-bonding a component of the projection to the body surface of the main body.

12. The sanitary napkin of claim 1, wherein the temporarily fixing means is an adhesive layer through which the projection is separably bonded to the body surface of the main body.

13. The sanitary napkin of claim 1, wherein the temporarily fixing means is provided by perforating a component of the projection at intervals.