摘要:
A conditioning solution or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade. This solution contains an antimicrobial composition that consists essentially of a polyaminocarboxylic acid or salt thereof as the sole antimicrobial agent. This agent is present in an amount of less than about 3 g/l.
摘要:
A ferric-EDTA bleach regenerator composition can be made with bleach overflow to provide a bleach replenisher for reversal color silver halide photographic processes. The bleach regenerator composition has a critically controlled pH between about 6.0 and about 6.5, and comprises a total bromide ion concentration of at least about 210 g/l, and ferric ion in an amount of at least about 50 g/l. At least 50% of the bleach overflow and the bleach regenerator composition are mixed in at least a 1:1 volume ratio. After pH adjustment to from about 5.4 to about 5.6, the pH adjusted replenisher is supplied to the bleach tank for use in the process.
摘要:
A ferric-EDTA bleach regenerator composition can be mixed with bleach overflow to provide a bleach replenisher for reversal color silver halide photographic processes. The bleach regenerator composition has a critically controlled pH between about 6.0 and about 6.5, and comprises a total bromide ion concentration of at least about 210 g/l, and ferric ion in an amount of at least about 50 g/l. At least 50% of the bleach overflow and the bleach regenerator composition are mixed in at least a 1:1 volume ratio. After pH adjustment to from about 5.4 to about 5.6, the pH adjusted replenisher is supplied to the bleach tank for use in the process.
摘要:
A ferric-EDTA bleach regenerator composition can be mixed with bleach overflow to provide a bleach replenisher for reversal color silver halide photographic processes. The bleach regenerator composition has a critically controlled pH between about 6.0 and about 6.5, and comprises a total bromide ion concentration of at least about 210 g/l, and ferric ion in an amount of at least about 50 g/l. At least 50% of the bleach overflow and the bleach regenerator composition are mixed in at least a 1:1 volume ratio. After pH adjustment to from about 5.4 to about 5.6, the pH adjusted replenisher is supplied to the bleach tank for use in the process.