Radiation imagery chemistry: process – composition – or product th – Dye image from radiation sensitive dye or dye former by dry... – Composition or product
Patent
1993-06-29
1994-12-13
Bowers, Jr., Charles L.
Radiation imagery chemistry: process, composition, or product th
Dye image from radiation sensitive dye or dye former by dry...
Composition or product
430292, 430334, 503210, 503217, B41M 530, B41M 532, G03C 173
Patent
active
053729170
ABSTRACT:
The present invention provides a recording material utilizing a reaction between a colorless or light-colored dye precursor and a color developer capable of forming a color upon coming into contact with the dye precursor, the recording material being characterized in that the material comprises at least one compound serving as the dye precursor and represented by the formula (1), and an acidic substance serving as the color developer ##STR1## wherein R.sub.1 to R.sub.6, p and q are defined in the specification. At least one selected from the group consisting of phenolic compounds of the formulae (10), (11) and (12) and phenolic resin having a partial structure of the formula (13) can be used, as required, to further improve the color forming properties and change the color of recorded images from reddish purple or purple to blue or dark blue.
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Chemical Abstracts 64:3734c (1966).
Chemical Abstracts 64:8362F (1966).
Kouro Takaaki
Meguro Tatsuya
Omura Haruo
Tsuchida Tetsuo
Bowers Jr. Charles L.
Kanzaki Paper Manufacturing Co. Ltd.
McPherson John A.
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