Disposable diaper

Details Disposable diaper Disposable diaper

1996-11-27

1997-11-25

Zuttarelli, P.

Surgery

Means and methods for collecting body fluids or waste material

Absorbent pad for external or internal application and...

604380, 6043851, A61F 1315, A61F 1320

Patent

active

056906242

ABSTRACT:
A disposable diaper is provided with an indicator adapted to be revealed as it is wetted with discharged urine and to tell a mother her baby's urination. The indicator comprises a hydrophilic base sheet, a first coating layer formed on one side of the base sheet so as to develop its proper color as the indicator is wetted with urine, and a second coating layer formed on the other side of the base sheet or upper surface of the first coating layer and intermittently bonded to the inner surface of the backsheet so that the second coating layer covers up the first coating layer. The second coating layer becomes transparent as the indicator is wetted with urine.

REFERENCES:
patent: 3675654 (1972-07-01), Baker et al.
patent: 3759261 (1973-09-01), Wang
patent: 4192311 (1980-03-01), Felfoldi
patent: 4287153 (1981-09-01), Townsend
patent: 4507121 (1985-03-01), Leung
patent: 4705513 (1987-11-01), Sheldon et al.
patent: 4810562 (1989-03-01), Okawa et al.
patent: 5354289 (1994-10-01), Mitchell et al.

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