Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1978-07-17
1979-11-27
Brown, J. Travis
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430372, 430566, 430543, G03C 140, G03C 106
Patent
active
041759680
ABSTRACT:
Undesired color fog obtained on color development of a color photographic material with a primary aromatic amino color developing agent may be reduced when the development is carried out in the presence of an antifogging agent (antistaining agent) of the formula ##STR1## in which R.sup.1 is an acyl group and R.sup.2 and R.sub.3 are (same or different) hydrogen, alkyl, halogen, sulfo or carboxyl.
The antistaining agent is preferable incorporated in non-diffusible form in one or more of the layers of the photographic material.
REFERENCES:
patent: 2360290 (1944-10-01), Vittum et al.
patent: 2403721 (1946-07-01), Jelley et al.
patent: 2701197 (1955-02-01), Thirtle et al.
patent: 3236652 (1966-02-01), Kennard et al.
patent: 3770431 (1973-11-01), Gates et al.
patent: 3935016 (1976-01-01), Nishimura et al.
Credner Hans-Heinrich
Schranz Karl-Wilhelm
AGFA-Gevaert A.G.
Brown J. Travis
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