Method of replenishing developing solution with replenisher

Details Method of replenishing developing solution with replenisher Method of replenishing developing solution with replenisher

1992-06-03

1993-10-12

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Regenerating image processing composition

Developer

430466, 430484, 430490, 430492, 430567, 354303, G03C 530, G03C 5305, G03C 531, G03D 306

Patent

active

052524396

ABSTRACT:
A method for processing an imagewise exposed color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer comprising a silver halide emulsion containing at least 90 mol % silver chloride, comprising the steps of: (a) developing in a color developing bath; (b) bleaching in a bath having a bleaching ability and fixing in a bath having a fixing ability or bleach-fixing in a bath having a bleaching and fixing ability; and (c) independently supplying a low pH replenisher and a high pH replenisher to the developing bath each in an amount depending on the quantity of photographic material processed, the low pH replenisher having a pH of from 2 to 6 and mainly containing a color developing agent and the high pH replenisher containing one or more components of the developing bath, wherein the components of the each replenisher are sufficiently diluted upon addition to the developing bath to avoid formation of a precipitate by mixing with the components of the unlike replenisher. The developing function can be recovered by addition of small amounts of the replenishing solutions to the developing bath. Consequently, the amount of waste liquid is reduced, which in turn benefits the environment.

REFERENCES:
patent: 4501812 (1985-02-01), Marchesano
patent: 4613562 (1986-09-01), Kuse et al.
patent: 4923787 (1990-05-01), Harder
patent: 5006546 (1991-04-01), Morigaki et al.
patent: 5066571 (1991-11-01), Yoshida et al.
patent: 5100765 (1992-03-01), Fujimoto

Affiliated with

Also associated with

Rating

Method of replenishing developing solution with replenisher does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of replenishing developing solution with replenisher, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of replenishing developing solution with replenisher will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1903653