Reversible thermosensitive coloring composition and a thermosens

Details Reversible thermosensitive coloring composition and a thermosens Reversible thermosensitive coloring composition and a thermosens

1995-09-29

1997-06-24

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

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

Identified color-former

427151, 503201, 503209, 503216, 503217, B41M 5035

Patent

active

056417241

ABSTRACT:
This invention generally relates to a reversible thermosensitive coloring composition and a thermosensitive recording medium using thereof which have high light-resisting characteristics, wherein coloring and decolorizing can be repeated suitably. A reversible thermosensitive coloring composition of this invention comprises an electron donating chromophoric compound and an electron accepting compound, which has a colored state and a decolorized state based on a heated temperature and a difference between cooling speeds after being heated, said electron donating chromophoric compound including a compound having a general formula (I) ##STR1##

REFERENCES:
patent: 4628337 (1986-12-01), Sekine
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patent: 5049538 (1991-09-01), Mochizuki et al.
patent: 5143893 (1992-09-01), Mochizuki et al.
patent: 5144334 (1992-09-01), Suzuki et al.
patent: 5185194 (1993-02-01), Miyake et al.
patent: 5380693 (1995-01-01), Goto
patent: 5403810 (1995-04-01), Sawamura et al.

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