Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Plural colors or plural diverse systems
Patent
1997-01-10
1999-03-23
Hess, Bruce H.
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Plural colors or plural diverse systems
503205, 503207, 503215, 503227, B41M 5035, B41M 534, B41M 535
Patent
active
058859268
ABSTRACT:
The present invention provides a heat sensitive multiple color recording material which produces different color tone by changing applied thermal energy and which has stable developed color image and little color mixture. The heat sensitive color recording material comprises: (a) a substrate, (b) a sublimable dye coloring layer, formed on the substrate (a), and (c) at least one leuco dye color-developing layer, formed on the sublimable dye coloring layer (b), wherein the sublimable dye coloring layer (b) is composed of a sublimable dye layer and a thermoplastic resin layer for fixing the sublimable dye. The leuco dye color-developing layer (c) contains a leuco dye and a developing agent for the leuco dye, and also contains, either within the leuco dye color-developing layer (c) or as an adjacent layer, microcapsules containing a color eraser for erasing the developed color. The color development of the leuco dye color developing layer (c) occurs a temperature lower than that of the sublimable dye, and the developed color of the leuco dye color developing layer (c) is erased by the function of the color eraser emitted from the microcapsules at a temperature which develops color in the sublimable dye coloring layer (b).
REFERENCES:
patent: 4500896 (1985-02-01), Matsumoto
patent: 4620204 (1986-10-01), Inaba et al.
Hess Bruce H.
Naigai Carbon Ink Co., Ltd.
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