Absorbent Article With Fluorescent Wetness Indicator
An absorbent article includes a body having a surface for receiving a liquid and a wetness indicator disposed on the body. The wetness indicator includes a first agent that produces a fluorescence when wetted and a second agent that produces a color change when wetted.
1 . An absorbent article comprising:
a body having a surface for receiving a liquid; and
a wetness indicator disposed on said body, said wetness indicator comprising:
a first agent producing a fluorescence when wetted, and
a second agent producing a color change when wetted.
2 . The absorbent article of claim 1 , wherein said fluorescence is perceptible when exposed to ultraviolet light.
3 . The absorbent article of claim 1 , wherein said color change is perceptible under visible light.
4 . The absorbent article of claim 1 , wherein said wetness indicator is arranged in a predetermined pattern when dry, and dispersible into an irregular pattern when wetted.
5 . The absorbent article of claim 1 , wherein said wetness indicator comprises a hot-melt adhesive.
6 . The absorbent article of claim 1 , wherein said body comprises:
a liquid-permeable topsheet;
a liquid-impermeable backsheet; and
an absorbent core disposed between said topsheet and said backsheet.
7 . The absorbent article of claim 6 , wherein said wetness indicator is disposed between said absorbent core and an interior facing side of said backsheet.
8 . The absorbent article of claim 6 , wherein at least a portion of said backsheet is translucent.
9 . The absorbent article of claim 6 , wherein said backsheet comprises a film.
10 . The absorbent article of claim 9 , wherein said backsheet further comprises a nonwoven material.
11 . The absorbent article of claim 1 , wherein said absorbent article comprises a diaper.
12 . The absorbent article of claim 11 , wherein said diaper is an adult diaper.
13 . The absorbent article of claim 1 , wherein said first agent comprises at least one of an acridine dye, cyanine dye, xanthene dye, pyrene dye, benzoxazole dye, fluoranthene dye, and quinine dye.
14 . The absorbent article of claim 1 , wherein said first agent comprises at least one of Fluorescein, Fluorescein salt, and Pyranine 10G.
15 . A method of manufacturing an absorbent article, comprising:
forming a body having a surface for receiving a liquid; and
disposing a wetness indicator on said body, said wetness indicator comprising:
a first agent producing a fluorescence when wetted, and
a second agent producing a color change when wetted.
16 . The method of claim 15 , wherein forming said body comprises:
forming a liquid-permeable topsheet;
forming a liquid-impermeable backsheet; and
disposing an absorbent core between said topsheet and said backsheet.
17 . The method of claim 16 , wherein said wetness indicator is disposed between said absorbent core and an interior facing side of said backsheet.
18 . The method of claim 16 , wherein said wetness indicator comprises a hot-melt adhesive.
19 . The method of claim 16 , wherein at least a portion of said backsheet is translucent.
20 . The method of claim 16 , wherein said backsheet comprises a film.
21 . The method of claim 20 , wherein said backsheet further comprises a nonwoven material.
22 . The method of claim 15 , wherein said fluorescence is perceptible when exposed to ultraviolet light.
23 . The method of claim 15 , wherein said color change is perceptible under visible light.
24 . The method of claim 15 , wherein said wetness indicator is disposed in a predetermined pattern, and is dispersible into an irregular pattern when wetted.
25 . The method of claim 15 , wherein said first agent comprises at least one of an acridine dye, cyanine dye, xanthene dye, pyrene dye, benzoxazole dye, fluoranthene dye, and quinine dye.
26 . The method of claim 15 , wherein said first agent comprises at least one of Fluorescein, Fluorescein salt, and Pyranine 10G.