Gluconic acid-based developer composition

Details Gluconic acid-based developer composition Gluconic acid-based developer composition

G - Physics

03

C

G03C 5/30 (2006.01) G03C 5/305 (2006.01)

Patent

CA 2065204

An environmentally-safe, non-toxic non- hydroquinone and non-alkali metal hydroxide containing photographic developer composition is provided comprising a developer selected from the group consisting of 2-keto gluconic acid and derivatives thereof, together with a sulfite, an alkali metal carbonate, and a 3-pyrazolidone developer compound.

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