ABSORBENT ARTICLE AND SANITARY NAPKIN

• US 20110144604A1
• Filed: 05/25/2009
• Published: 06/16/2011
• Est. Priority Date: 05/28/2008
• Status: Abandoned Application

• Current Assignee: Unicharm Corporation
• Original Assignee: Unicharm Corporation
• Inventors: Noda, Yuki, Komatsu, Shinpei, Kuroda, Kenichiro
• Application Number:
  US12/994,811
• Publication Number:
  US 20110144604A1
• Time in Patent Office: Days
• US Class Current: 604/361
• CPC Class Codes: A61F 13/47263 with activating means, e.g. elastic, heat or chemical activatable means
• CPC Class Codes: A61F 13/475 characterised by edge leakage prevention means
• CPC Class Codes: A61F 13/8405 Additives, e.g. for odour, disinfectant or pH control

Abstract

An absorbent article comprises a liquid-permeable top sheet, a liquid-impermeable back sheet, and an absorber mounted between the top sheet and the back sheet. A coating region to which an adhesive is applied is formed in a flat surface direction, on a surface of the back sheet which faces clothing. An endothermic material is provided inside the absorber. A region which, with respect to the thickness direction of the absorbent article, does not face an arrangement region in which the heat endothermic material is provided is formed in at least a part of the coating region to which the adhesive is applied.

Claims

1. An absorbent article comprising:

a liquid permeable top sheet;

a liquid impermeable back sheet; and

an absorber interposed between the top sheet and the back sheet, wherein

a coating region of an adhesive is formed in a planar direction on a surface of the back sheet facing clothing,

an endothermic material is disposed inside the absorber, and

a region not facing an arrangement region of the endothermic material in a thickness direction of the absorbent article, is formed at least in a part of the coating region of the adhesive.

2. The absorbent article according to claim 1, wherein the endothermic material is disposed inside the absorber on a top sheet side.

3. The absorbent article according to claim 1, wherein a hydrophobic sheet is disposed between the back sheet and the absorber.

4. A sanitary napkin comprising:

a liquid permeable top sheet;

a liquid impermeable back sheet; and

an absorber interposed between the top sheet and the back sheet, wherein

a coating region of an adhesive is formed in a planar direction on a surface of the back sheet facing clothing,

an endothermic material is disposed inside the absorber, and

a region not facing an arrangement region of the endothermic material in a thickness direction of the absorbent article, is formed at least in a part of the coating region of the adhesive.

5. The sanitary napkin according to claim 4, further comprising a wing extending in a width direction, wherein

in the sanitary napkin, a front region, a central region, and a rear region are provided continuously in a longitudinal direction of the absorber,

the endothermic material is disposed inside the absorber in an arrangement region including at least a central region of the absorbent article, and

a regionin a longitudinal direction of the central region, is a region in a longitudinal direction of the wing.

6. The sanitary napkin according to claim 4, wherein

in the sanitary napkin, an embossed groove is formed in both side portions in a width direction of the absorber,

the embossed groove is formed along a longitudinal direction of the sanitary napkin, and

the endothermic material is interposed between the embossed grooves.