摘要:
A concentrated blix solution composition, which can remarkably reduce the replenishing amount of the blix solution and/or remarkably reduce the blix time, comprises: 1) a concentrated composition part containing a bleaching agent; and 2) a concentrated composition part containing a fixing agent, wherein the part concentrated composition 1) satisfies all the following conditions: (1) pH is from 2.0 to 3.5, (2) a specific gravity is 1.130 or more, (3) the bleaching agent comprises an iron(III) complex salt of an aminopolycarboxylic acid, (4) a concentration of the bleaching agent is from 0.5 to 1.0 mole/L, and (5) a content of an aminopolycarboxylic acid having not been complexed is from 0.1 to 3% by mole based on the bleaching agent, and a processing process using the same.
摘要:
The present invention relates to a concentrated solution for photographic reversal baths, and to a ready-to-use reversal solution, for limiting the growth of microorganisms and biofilm formation. The solutions comprise a chelating agent comprising an alkali metal salt of a phosphonic or phosphinic acid, and a biological growth control agent, said biological growth control agent comprising a mixture of at least one quaternary ammonium compound with short alkyl chain and at least one polymeric quaternary ammonium compound that is highly soluble in water, the total concentration of quaternary ammonium compounds being less than or equal to 0.5 g/l.
摘要:
A one-part photographic bleach-fixing concentrate including an iron (III) complex salt of an aminopolycaroxylic acid in an amount of 0.3 to 0.6 mol/l and a fixing agent, a ratio of ammonium ions to the total cationic ions being 0 to 50 mol%.
摘要:
Concentrated and working strength photographic color developing compositions are stabilized with the inclusion of an α-ketocarboxylic acid or salt thereof, such as pyruvic acid or a salt thereof. These compositions can be used to process color photographic materials.
摘要:
A concentrated black-and-white photographic developing composition has improved stability, is compatible with the environment and provides desired sensitometric properties with a combination of particular antifoggants. These antifoggants include a mercapto-substituted tetrazole and a benzimidazole that has one or more electron withdrawing groups. This concentrated composition can be used as a first "part" and mixed, upon dilution, with a diluted second "part" that is a concentrated composition of a gelatin hardening agent. When mixed together, the two diluted concentrates form a working strength developing composition that can be used to provide black-and-white images in various photographic silver halide materials, and particularly in radiographic films.
摘要:
A concentrated aqueous solution of a p-phenylenediamine derivative, which
a) has a pH higher than 12.5, b) contains 0.4 to 1.1 mol p-phenylenediamine derivative/litre, c) contains 0.05 to 2 mol of an antioxidant/litre, d) contains at most 35 % by weight of organic solvents with respect to the total solution, e) contains at most 50 mmol sulphate ions/litre and f) is single-phase, is suitable for the production of different colour developer formulations.
摘要:
A one-part, optionally multi-phase, colour developer concentrate which contains at least one colour developer substance, at least one auxiliary solvent, an antioxidant, a buffer system and alkali, wherein the antioxidant is a mixture of 0.1 to 100 mmol of hydroxylamine and 0.01 to 4 mol of one or more substituted hydroxylamines, does not darken on storage.