04231370 is referenced by 131 patents and cites 8 patents.

An improved absorbent product, such as a disposable diaper type garment having a wetness indicator disposed between a translucent cover member and an absorbent member. The improvement relates to providing a flexible pH-change/color-change wetness indicator coating on a surface portion of the product which is visible through the cover member, and which retains sharp edge definition of the coated surface portion when wetted; for instance, by urine. The coating is preferably applied in the form of a stripe to a portion of the inwardly facing surface of a backsheet of a disposable diaper. Such a coating comprises a solid-solid mixture (e.g., solution) of a pH-change/color-change type material dispersed in a matrix of adhesive material which coating is sufficiently flexible to not substantially impair the flexibility of the product, and which coating is sufficiently adhesive and flexible to remain on the coated surface portion through a normal period of use of the product.

Title
Disposable diaper type garment having wetness indicator
Application Number
6/50013
Publication Number
4231370
Application Date
June 18, 1979
Publication Date
November 4, 1980
Inventor
Dennis A Thomas
Cincinnati
OH, US
Judith C Mroz
Cincinnati
OH, US
Agent
Richard C Witte
Fredrick H Braun
Thomas J Slone
Assignee
The Procter & Gamble Company
OH, US
IPC
A61F 13/16
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