Thermosensitive recording materials

Details Thermosensitive recording materials Thermosensitive recording materials

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.

REFERENCES:
patent: 4978709 (1990-12-01), Taniguchi et al.
patent: 4983446 (1991-01-01), Taniguchi et al.
patent: 5306687 (1994-04-01), Furuya et al.
patent: 5328754 (1994-07-01), Yuyama et al.
patent: 5395676 (1995-03-01), Taka et al.
patent: 5409881 (1995-04-01), Mori et al.
patent: 5447900 (1995-09-01), Suzaki et al.

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