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US 7,332,642 B2Granted
Disposable absorbent articles having printed wetness indicators
AssigneeThe Procter & Gamble Company
InventorKuang-Kai Liu
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Abstract
The present invention relates to a disposable absorbent article comprising a wetness indicator disposed between the absorbent core and the backsheet and in liquid communication with the absorbent core; the wetness indicator comprising a central graphic and a background graphic; wherein the background graphic comprises at least one responsive color composition that, upon wetting, exhibits a visible change that is selected from the group consisting of a color change, a graphic change, and combinations thereof.
Claims11
A disposable absorbent article comprising:
- a) a liquid pervious topsheet;
- b) a liquid impervious backsheet that is at least partially joined to the topsheet;
- c) an absorbent core disposed at least partially between the topsheet and the backsheet;
- and
- d) a wetness indicator disposed between the absorbent core and the backsheet and in liquid communication with the absorbent core;
- the wetness indicator comprising a hidden central graphic and a background graphic;
- wherein the hidden central graphic comprises a permanent color composition and the background graphic comprises at least one responsive color composition and that, upon wetting, the background graphic exhibits a visible change resulting in the hidden central graphic being revealed, wherein the visible change is selected from the group consisting of a color change, a graphic change, and combinations thereof.
4 more elements
A method of printing a wetness indicator onto an absorbent article:
- a) providing an absorbent article wherein said article comprises a topsheet, a backsheet and an absorbent core;
- b) disposing between said backsheet and said absorbent core via printing a wetness indicator that is in liquid communication with the absorbent core wherein the wetness indicator comprises a hidden central graphic and a background graphic;
- wherein the hidden central graphic comprises a permanent color composition and the background graphic comprises at least one responsive color composition and that, upon wetting, the background graphic exhibits a visible change resulting in the hidden central graphic being revealed, wherein the visible change is selected from the group consisting of a color change, a graphic change, and combinations thereof.
Dependencies are inferred from the claim text.