Record receiver having plural interactive leaves or a colorless – Having a colorless color-former – developer therefor – or... – Identified organic electron acceptor other than phenolic resin
Patent
1995-05-15
1997-04-22
Hess, B. Hamilton
Record receiver having plural interactive leaves or a colorless
Having a colorless color-former, developer therefor, or...
Identified organic electron acceptor other than phenolic resin
503200, 503207, 503226, B41M 5155
Patent
active
056229097
ABSTRACT:
A thermosensitive recording material of this invention has a support, on which a thermosensitive color developing layer mainly composed of a leuco dye and a color developer which is contacted with the leuco dye while heating to develop a color and a protective layer mainly composed of polyvinyl alcohol together with either aziridine compound or dimethylolurea are successively provided, the color developer being at least one of phthalic acid derivatives represented by the following general formula (I): ##STR1## wherein R.sub.1, X, Y and 1 are as defined in above. The thermosensitive recording material of this invention is excellent in sensitivity and density of the color development and has the high storage stability of the recorded images. Accordingly, the thermosensitive recording material of this invention is very useful.
The selected inorganic filler may be incorporated in the thermosensitive color developing layer and/or the protective layer.
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patent: 5447900 (1995-09-01), Suzaki et al.
Furuya Hiromi
Mori Yasutomo
Taniguchi Keishi
Yuyama Takeshi
Hess B. Hamilton
Ricoh & Company, Ltd.
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