Recording material

Details Recording material Recording material

1987-07-09

1989-02-07

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Heavy metal reactant

427151, 428913, 428914, 503215, 503217, 503220, 503223, B41M 516, B41M 518, B41M 522

Patent

active

048031925

ABSTRACT:
A recording material containing the combination of a colorless dye comprising a p-substituted aminophenylindolylphthalide moiety and an electron-accepting compound comprising an organic acid having at least one phenolic hydroxyl group. The dye image obtained by the recording material is stable.

REFERENCES:
patent: 3491116 (1970-01-01), Lin
patent: 4062866 (1977-12-01), Garner et al.
patent: 4351768 (1982-09-01), Crounse et al.
patent: 4660060 (1987-04-01), Hung et al.

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