Radiation imagery chemistry: process – composition – or product th – Post imaging processing – Developing
Patent
1996-03-27
1998-08-11
Le, Hoa Van
Radiation imagery chemistry: process, composition, or product th
Post imaging processing
Developing
430441, 430446, G03C 529
Patent
active
057925984
ABSTRACT:
Photographic developing compositions are provided that are free of dihydroxybenzene developing agents and are used in the processing of photographic elements. The developing compositions have a pH in the range of from 10.1 to 10.9 and comprise at least 0.17 moles per liter of an ascorbic acid developing agent, 0.3 to 0.5 moles per liter of a sulfite and 0.2 to 0.4 moles per liter of a carbonate buffer. Also provided is an ecologically advantageous method for processing photographic elements which utilizes the non-toxic developing compositions.
REFERENCES:
patent: 2688549 (1954-09-01), James et al.
patent: 3022168 (1962-02-01), St Jarnkvist
patent: 3826654 (1974-07-01), Weiss et al.
patent: 4269929 (1981-05-01), Nothnagle
patent: 4634660 (1987-01-01), Mifune et al.
patent: 4686167 (1987-08-01), Resnick et al.
patent: 4816384 (1989-03-01), Fruge et al.
patent: 4833064 (1989-05-01), Okutsu et al.
patent: 4997980 (1991-03-01), Resnick et al.
patent: 5098819 (1992-03-01), Knapp
patent: 5108880 (1992-04-01), Adkins
patent: 5196298 (1993-03-01), Meeus et al.
patent: 5220022 (1993-06-01), Resnick et al.
patent: 5236816 (1993-08-01), Purol et al.
patent: 5264323 (1993-11-01), Purol et al.
patent: 5278035 (1994-01-01), Knapp
patent: 5384232 (1995-01-01), Bishop et al.
patent: 5503966 (1996-04-01), Adae-Amoakoh et al.
T.H. James, Chap. 17 Sensitometry of Black-White Materials, "Characteristic Curves", pp. 501-503.
Neblette, "The D Log E Curve", Photographic Sensitometry, pp. 259-261.
The Role of Antifoggants in Development The Journal of Photographic Science, vol. 32, (1984) p. 128.
T.H. James, Sensitometry of Black-White Materials, "Antifoggants & Stabilizers", Ch. 13, Mechanism of Development, pp. 396-397.
S. Moriuchi et al., "A New Technique for High Contrast Development in Rapid Processing", The Journal of Photographic Science, vol. 32, (1984), pp. 197-199.
H.C. Daly et al., "Graphic Art's Application of High-Contrast, Non-Lith Products", The Journal of Photographic Science, vol. 32, (1984), pp. 170-177.
D. Shiao et al., "Mathematical Modeling of Chemical Development", Society of Photographic Scientists & Engineers, vol. 25, No. 4, Jul./Aug., 1981, pp. 145-157.
Research Disclosure--The Composition and Use of Photographic Materials in Graphic Pre Press Applications, Jan. 1992, pp. 41-51.
Great Britain Patent Application 9410425.4 filed May 24, 1994 (Fryberg).
Great Britain Patent Application 9410400.7 filed May 24, 1994 (Fryberg).
Material Data Sheet for Kodak Dimezone S, Eastman Kodak Company, Rochester, New York (1990).
Material Data Sheet for IRGAFORM 1266 (Dimezone S) Ciba-Geigy Corporation, Three skyline Drive, Hawthorne, New York.
Material Data Sheet for METOL, Charkil Chemical Corporation, 1063 Post Road, Darien Connecticut.
Material Data Sheet for METOL, Aldrich Chemical Co., Inc., Milwaukee, Wisconsin.
Material Data Sheet for Grafkem Non Tox Radr, Grafken Corporation, 2445 W. 147th Street, Posen, Illinois.
Adae-Amoakoh Sylvia
Resnick Bruce Mel
International Paper Company
Le Hoa Van
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