Two-color thermosensitive recording material

Details Two-color thermosensitive recording material Two-color thermosensitive recording material

1984-11-09

1986-07-08

Hess, Bruce H.

Recorders

Record receiver deforming

346205, 346208, 346216, 346217, 346220, 346221, 346226, 427152, B41M 518, B41M 522

Patent

active

045996300

ABSTRACT:
A two-color thermosensitive recording material using leuco dyes is disclosed, which is capable of forming two different colors when heated at different temperatures, black or blackish color at a low temperature and another color at a high temperature, comprising a support material, a high-temperature color-forming material overlaying the support material, a decolorization layer overlaying the high-temperature color-forming layer, and a low-temperature color-forming layer overlaying the decolorization layer, and when necessary, an intermediate layer interposed between the decolorization layer and the low-temperature color-forming layer, the decolorization layer containing an aliphatic amine or a morpholine derivative of the formula of ##STR1## which are fully defined in the specification, and the low-temperature color-forming layer containing as a color developer a thiourea derivatives of the formula, ##STR2## which is fully defined in the specification.

REFERENCES:
patent: 4311750 (1982-01-01), Kubo et al.

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