Moisture indicating ink and package having same

Details Moisture indicating ink and package having same Moisture indicating ink and package having same

1989-10-11

1991-02-05

Maples, John S.

Compositions

Nonreactive analytical, testing, or indicating compositions

73 73, 106 20, 252963, G01N 3100

Patent

active

049902849

ABSTRACT:
A solution-type moisture indicating ink to be printed on a substrate and change color at a preselected ambient moisture. The indicator ink includes a solvent carrier system, a moisture indicating substance which changes color under the influence of moisture, and a resin system as a binder to hold the moisture indicating substance to the substrate as well as a film forming and viscosity adjusting agent.

REFERENCES:
patent: 3533277 (1970-10-01), Krause
patent: 3723349 (1973-03-01), Heseltine
patent: 3898172 (1975-08-01), Reif
patent: 4045397 (1977-08-01), Parkinson
patent: 4179397 (1979-12-01), Rokowetz et al.
patent: 4216283 (1980-08-01), Cooper et al.
patent: 4389503 (1983-06-01), Maxwell et al.
patent: 4643122 (1987-02-01), Seybold
patent: 4793264 (1988-12-01), Lin et al.
patent: 4869532 (1989-09-01), Abe et al.

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