Disposable diaper

Patent metadata

Field	Value
Publication number	US-9233031-B2
Application number	US-201213985837-A
Country	US
Kind code	B2
Filing date	Feb 22, 2012
Priority date	Mar 2, 2011
Publication date	Jan 12, 2016
Grant date	Jan 12, 2016

Abstract

A disposable diaper utilizing graphics to visually confirm whether the waist elastics are properly cut or cut off. A disposable diaper has a skin-facing side and a non-skin-facing side defining front and rear waist members, and includes an inner sheet lying on the skin-facing side, an outer sheet lying on the non-skin-facing side, waist elastics interposed between the inner and outer sheets and extending under a potential contractility in a transverse direction of the front and rear waist members, front and rear inelastic regions in which none of the waist elastics is present and graphic sheets having graphics adapted to be visually recognized through the outer sheet. End portions of the waist elastics interposed between the graphic sheets and the outer sheet extend from the outside of the graphic sheets across opposite side edges of the respective graphic sheets into the respective graphic sheets.

First claim

The invention claimed is:

1. A disposable diaper having a skin-facing side and a non-skin-facing side, comprising:
an inner sheet lying on the skin-facing side and an outer sheet lying on the non-skin-facing side each defining the front and rear waist members;
waist elastics interposed between the inner and outer sheets and extending under a potential contractility in a transverse direction of the front and rear waist members;
inelastic regions in which none of the waist elastics is present; and
graphic sheets having graphics adapted to be visually recognized through the outer sheet, wherein:
respective end portions of the waist elastics interposed between the graphic sheets and the outer sheet extend from the outside of the graphic sheets across opposite side edges of the respective graphic sheets into the respective graphic sheets;
the end portions of the waist elastics lie on the respective graphics;
the diaper further includes a liquid-absorbent structure; and
a distribution direction of a first adhesive with which the inner sheet is joined to the respective graphic sheets intersects with a distribution direction of a second adhesive with which the inner sheet is joined to the liquid-absorbent structure.

2. The diaper defined by claim 1 , wherein:
the end portions of the waist elastics have no contractility and the remaining portions thereof have contractility; and
the portions of the waist elastics having contractility extend from the outside of the respective graphic sheets across the opposite side edges thereof into the respective graphic sheets.

3. The diaper defined by claim 2 , wherein the end portions of the waist elastics lie on the respective graphics.

4. The diaper defined by claim 3 , wherein the respective graphics are different from the waist elastics in at least one of color phase, color saturation and brightness.

5. The diaper defined by claim 2 , wherein the end portions of the waist elastics lie between the opposite side edges of the respective graphic sheets and the respective graphics.

6. The diaper defined by claim 2 , wherein the respective graphics are different from the waist elastics in at least one of color phase, color saturation and brightness.

7. The diaper defined by claim 2 , wherein the respective graphics are partially low in brightness and the waist elastics are relatively high in brightness.

8. The diaper defined by claim 1 , wherein the end portions of the waist elastics lie between the opposite side edges of the respective graphic sheets and the respective graphics.

9. The diaper defined by claim 8 , wherein the respective graphics are different from the waist elastics in at least one of color phase, color saturation and brightness.

10. The diaper defined by claim 1 , wherein:
the respective graphic sheets include at least central graphics and lateral graphics arranged on both sides of the central graphics; and
the end portions of the waist elastics lie between the opposite side edges of the respective graphic sheets and the respective central graphics.

11. The diaper defined by claim 10 , wherein the respective graphics are different from the waist elastics in at least one of color phase, color saturation and brightness.

12. The diaper defined by claim 10 , wherein the noncontractile end portions of the waist elastics lie on the respective lateral graphics.

13. The diaper defined by claim 12 , wherein the respective graphics are different from the waist elastics in at least one of color phase, color saturation and brightness.

14. The diaper defined by claim 1 , wherein the respective graphics are different from the waist elastics in at least one of color phase, color saturation and brightness.

15. The diaper defined by claim 1 , wherein the respective graphics are partially low in brightness and the waist elastics are relatively high in brightness.

16. The diaper defined by claim 1 , wherein:
the diaper further includes the liquid-absorbent structure containing therein a core material assembly; and
in the transverse direction, a width dimension of the core material assembly is substantially the same as a width dimension of each of the graphic sheets.

17. The diaper defined by claim 16 , wherein the respective graphics are different from the waist elastics in at least one of color phase, color saturation and brightness.

Assignees

• Ichihara Keiko
• Inoue Takuya
• Unicharm Corp

Inventors

• Ichihara Keiko
• Inoue Takuya

Classifications

• A61F13/49011 Primary

  the elastic means is located at the waist region · CPC title

• A61F13/51496

  having visual effects · CPC title

• A61F2013/8497

  having decorations or indicia means · CPC title