Erasable information recording process using co-crystalline dye

Details Erasable information recording process using co-crystalline dye Erasable information recording process using co-crystalline dye

1983-11-21

1985-04-23

Schilling, Richard L.

Radiation imagery chemistry: process, composition, or product th

Erasable imaging

430 31, 430 46, 430 56, 430 70, 430 75, 430 76, 430 96, 430126, 430332, 430338, G03C 172, G03C 700, G03G 5026, G03G 1316

Patent

active

045130710

ABSTRACT:
A process for recording an erasable pattern which comprises selective deaggregation of an aggregate dye complex layer of a recording element. As a result, a color change occurs in the selected areas. In preferred embodiments, the pattern is produced by selectively exposing the layer to laser light. The pattern can be erased by exposing the layer to an appropriate solvent, or by heating the aggregate dye complex.

REFERENCES:
patent: 3122438 (1964-02-01), Chalkley
patent: 3166433 (1965-01-01), Baumann et al.
patent: 3615414 (1971-10-01), Light
patent: 3769011 (1973-10-01), Gilman et al.
patent: 4175960 (1979-11-01), Berwick et al.

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