Color developer composition for photography

Details Color developer composition for photography Color developer composition for photography

1999-04-02

2000-03-28

Le, Hoa Van

Radiation imagery chemistry: process, composition, or product th

Post imaging processing

With structural limitation

430466, 430497, G03C 7413

Patent

active

060430079

ABSTRACT:
Disclosed is a color developer composition for photography which is used for preparing a color development replenisher; with the composition comprising at least one color developing agent selected from the group consisting of 4-amino-3-methyl-N-ethyl-N-(.beta.-hydroxyethyl)aniline, 4-amino-3-methyl-N-ethyl-N-(.beta.-hydroxypropyl)aniline, 4-amino-3-methyl-N-ethyl-N-(.beta.-hydroxybutyl)aniline and salts thereof, having a specific gravity ranging from 1.05 to 1.18, and being kept in a container which is made up of high-density polyethylene alone as a plastic material so that the average weight thereof per unit surface area is from 0.04 to 0.09 g/cm.sup.2, thereby ensuring sufficient stability in the composition and recyclability for the container.

REFERENCES:
patent: 2843484 (1958-07-01), Baxendale
patent: 2846308 (1958-08-01), Baxendale
patent: 3574619 (1971-04-01), Surash
patent: 3647461 (1972-03-01), Surash et al.
patent: 5384233 (1995-01-01), Kuse et al.
patent: 5660973 (1997-08-01), Ishikawa et al.
patent: 5891608 (1999-04-01), Hashimoto et al.

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