Radiation imagery chemistry: process – composition – or product th – Transfer procedure between image and image layer – image... – Diffusion transfer process – element – or identified image...
Patent
1984-06-05
1985-06-04
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...
430222, 430223, 430242, 430562, G03C 140, G03C 551
Patent
active
045215065
ABSTRACT:
Azo dyes corresponding to the formula (I): ##STR1## wherein R.sup.1 represents a releasable group, R.sup.2 represents H, halogen or sulphonyl, R.sup.3 and R.sup.4 represent H or groups not capable of chelate formation, and Q represents a group for completing a phenyl or naphthyl group,
combine with nickel ions to form stable azo dye-metal complexes which have advantageous spectral properties. They are therefore particularly suitable for the production of highly light-fast magenta images, e.g. by the ink jet process, in which they may be used directly in the form of colored inks, or by the dye diffusion transfer process, in which they are released imagewise from suitable dye-releasers in the course of development and transferred to a dye-receptive layer.
REFERENCES:
patent: 4142891 (1979-03-01), Baigrie et al.
patent: 4195994 (1980-04-01), Chapman
patent: 4287292 (1981-09-01), Chapman et al.
patent: 4418143 (1983-11-01), Bergthaller et al.
Bergthaller Peter
Stolzenburg Rudolf
Strauss Jurgen
Wolfrum Gerhard
Agfa-Gevaert Aktiengesellschaft
Schilling Richard L.
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