Radiation imagery chemistry: process – composition – or product th – Nonradiation sensitive image processing compositions or... – Developer
Patent
2000-02-18
2000-10-24
Le, Hoa Van
Radiation imagery chemistry: process, composition, or product th
Nonradiation sensitive image processing compositions or...
Developer
430490, 430491, 430492, 430493, G03C 7413
Patent
active
061365181
ABSTRACT:
A multi-part color developing kit includes at least two parts (or solutions) of photochemical compositions that can be mixed to provide a color developing composition useful for obtaining color photographic images. A first aqueous solution is formulated with a color developing agent in free base form, an antioxidant for the color developing agent, an inorganic base, a triazinylstilbene optical brightening agent, an chemical base and a water-miscible or water-soluble hydroxy-substituted, straight-chain organic solvent. A second aqueous solution is formulated with a buffering agent, the same or different chemical base and a phosphonic acid metal ion sequestering agent. Both solutions have a pH and homogeneity to provide a clear color developing composition that is safer for use and disposal.
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Buongiorne Jean M.
Christ, Jr. Charles S.
Darmon Charles M.
Haight Michael J.
Kocher Barry C.
Eastman Kodak Company
Le Hoa Van
Tucker J. Lanny
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