Method of storing photographic processing solution in a package

Details Method of storing photographic processing solution in a package Method of storing photographic processing solution in a package

1987-06-16

1989-03-21

Shah, Mukund J.

Radiation imagery chemistry: process, composition, or product th

Nonradiation sensitive image processing compositions or...

Developer

430264, 430393, 430430, 430460, 430468, 430485, 430490, 430491, 430495, 430496, 430497, 430542, G03C 300, G03C 524, G03C 542, G03C 544

Patent

active

048142603

ABSTRACT:
A method of storing a liquid color developer and a liquid bleach-fixer in a container made of plastic material having an oxygen permeation coefficient of 0 to 50 m/(m.sup.2 atm day) at temperatures of 20.degree. C. and relative humidity of 60%. The developer contains an aromatic primary amine color developing agent; a hydroxylamine of the formula ##STR1## wherein R.sup.1 and R.sup.2 are hydrogen or alkyl having 1 to 3 carbon atoms, provided that at least one of R.sup.1 and R.sup.2 is an unsubstituted alkyl group having 1 to 3 carbon atoms and that R.sup.1 and R.sup.2 may be combined with each other to form a ring; and an alkaline ingredient for adjusting the pH of the developer to not less than 9.5. The bleach-fixer contains a ferric aminopolycarboxylate, 0 to 1.times.10.sup.-3 mols per liter of an aminopolycarboxylic acid based on the total bleach-fixer, a thiosulfate, and 1.times.10.sup.-3 to 2.times.10.sup.-1 mol per liter of said liquid bleach-fixer of a sulfite.

REFERENCES:
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patent: 4283486 (1981-08-01), Aono et al.
patent: 4303750 (1981-01-01), Campbell et al.
patent: 4303751 (1981-01-01), Campbell et al.
patent: 4554242 (1985-11-01), Ohno et al.
patent: 4565775 (1986-01-01), Forte
patent: 4601975 (1986-07-01), Koboshi et al.

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