ABSORBENT ARTICLE

• US 20110060301A1
• Filed: 02/25/2009
• Published: 03/10/2011
• Est. Priority Date: 03/04/2008
• Status: Abandoned Application

• Current Assignee: Unicharm Corporation
• Original Assignee: Unicharm Corporation
• Inventors: Nishikawa, Kumiko, Kuroda, Kenichiro, Noda, Yuki
• Application Number:
  US12/919,896
• Publication Number:
  US 20110060301A1
• Time in Patent Office: Days
• US Class Current: 604/358
• CPC Class Codes: A61F 13/15699 Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs
• CPC Class Codes: A61F 13/15707 Mechanical treatment, e.g. notching, twisting, compressing, shaping
• CPC Class Codes: A61F 13/472 specially adapted for female use A61F13/474, A61F13/475, A61F13/476 take precedence
• CPC Class Codes: A61F 13/4756 the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level
• CPC Class Codes: A61F 2013/8497 having decorations or indicia means
• CPC Class Codes: Y10T 156/1041 Subsequent to lamination

Abstract

To apply a colored recess part to an absorbent article such as sanitary napkin without worsening the soft and comfortable touch to skin and allowing the colorant from coming into direct contact with the skin of a wearer.

An absorbent article comprising a liquid-permeable sheet, a liquid-impermeable sheet, and an absorber sandwiched between the liquid-permeable sheet and the liquid-impermeable sheet, wherein a recess part is provided in the liquid-permeable sheet, at least a portion provided with the recess part has a colored layer in contact with the back surface of the liquid-permeable sheet, and the recess part appears in a color different from the portion other than the recess part. The recess part is provided by stacking the liquid-permeable sheet and the colored layer and applying embossing from the liquid-permeable sheet side to the region where the colored layer is present.

Claims

1. An absorbent article comprising a liquid-permeable sheet, a liquid-impermeable sheet, and an absorber sandwiched between the liquid-permeable sheet and the liquid-impermeable sheet, wherein a recess part is provided in the liquid-permeable sheet, at least a portion provided with the recess part has a colored layer in contact with the back surface of the liquid-permeable sheet, and the recess part appears in a color different from the portion other than the recess part.

2. The absorbent article according to claim 1, wherein the recess part is provided by simultaneously embossing the liquid-permeable sheet, the colored layer and the absorber.

3. The absorbent article according to claim 1, wherein the recess part is provided by simultaneously embossing the liquid-permeable sheet and the colored layer.

4. The absorbent article according to claim 1, wherein the absorbent article further has a second liquid-permeable sheet between the liquid-permeable sheet and the absorber and the recess part is provided by simultaneously embossing the liquid-permeable sheet, the colored layer and the second liquid-permeable sheet.

5. The absorbent article according to claim 2, wherein the recess part is forming a compressed groove.

6. The absorbent article according to claim 1, wherein the light transmittance of the liquid-permeable sheet is 70% or less.

7. The absorbent article according to claim 1, wherein the thickness of the liquid-permeable sheet is from 0.2 to 1.5 mm under a load of 3 g/cm².

8. The absorbent article according to claim 1, wherein the colored layer comprises a hot-melt resin containing a colorant.

9. The absorbent article according to claim 8, wherein the colored layer contains from 0.1 to 10 parts by weight of a colorant based on 100 parts by weight of the hot-melt resin.

10. A method for producing an absorbent article which comprises a liquid-permeable sheet, a liquid-impermeable sheet, an absorber sandwiched between the liquid-permeable sheet and the liquid-impermeable sheet, and a colored layer provided on the liquid-permeable sheet surface on the absorber side, and is provided with a recess part appearing in a color different from the portion other than the recess part, the method comprising stacking a liquid-permeable sheet and a colored layer and applying embossing from the liquid-permeable sheet side to the region where the colored layer is present, thereby providing a recess part in the liquid-permeable sheet.