Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1979-06-11
1981-03-10
Schilling, Richard L.
Radiation imagery chemistry: process, composition, or product th
Transfer procedure between image and image layer, image...
Diffusion transfer process, element, or identified image...
430223, 430562, G03C 140, G03C 110
Patent
active
042555094
ABSTRACT:
A photographic light-sensitive sheet for the color diffusion transfer process which comprises a support having thereon at least one light-sensitive silver halide emulsion layer having associated therewith a compound represented by the following general formula (1): ##STR1## wherein Q.sup.1 represents a hydrogen atom; a halogen atom; a sulfamoyl group represented by the formula --SO.sub.2 NR.sup.3 R.sup.4 wherein R.sup.3 represents a hydrogen atom, or an alkyl group, m represents 0 or 1, R.sup.4 represents a hydrogen atom or R.sup.4a wherein R.sup.4a represents an alkyl group, an aralkyl group or a phenyl group, and R.sup.3 and R.sup.4 may combined directly or through an oxygen atom to form a ring; a group represented by the formula --SO.sub.2 R.sup.5 wherein R.sup.5 represents an alkyl group or an aralkyl group; a carboxy group; a group represented by the formula --COOR.sup.6 wherein R.sup.6 represents an alkyl group or a phenyl group; or a group represented by the formula --CONR.sup.3 R.sup.4 wherein R.sup.3 and R.sup.4 each has the same meaning as defined above; Q.sup.2 is positioned at the 5- or the 8-position to the G group and represents a hydroxy group, a group represented by the formula --NHCOR.sup.4a or a group represented by the formula --NHSO.sub.2 R.sup.4a wherein R.sup.4a has the same meaning as defined above; R.sup.1 and R.sup.2, which may be the same or different, each represents an alkyl group or an alkoxy group; BG is a bridging group; Y represents a redox center which functions to release a diffusible dye as a result of self cleavage upon oxidation; and G represents a hydroxyl group, a salt thereof, or a hydrolyzable acyloxy group represented by the formula ##STR2## wherein E represents an alkyl group or an aryl group. The compound is a dye image providing material which provides a magenta dye image having superior properties.
REFERENCES:
patent: 3236645 (1966-02-01), Husek et al.
patent: 3932381 (1976-01-01), Haase et al.
patent: 3954476 (1976-05-01), Krutak et al.
patent: 4055428 (1977-10-01), Koyama et al.
Fujita Shinsaku
Harada Tooru
Ono Shigetoshi
Yoshida Yoshinobu
Fuji Photo Film Co. , Ltd.
Schilling Richard L.
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