Inventors:
Shirleyanne Haye - Rochester NY, US
Janet Huston - Webster NY, US
Richard Horn - Fairport NY, US
Anthony Jarkowski - Rochester NY, US
International Classification:
G03C005/29, G03C005/30, G03C005/31
US Classification:
430/434000, 430/467000, 430/490000, 430/484000, 430/435000
Abstract:
An amplified color developing composition is stabilized with a cyclicaminomethanediphosphonic acid or salt thereof alone of in combination with other stabilizing compounds. This composition also comprises a color developing agent, a redox oxidizing agent (such as hydrogen peroxide), and a hydroxylamine antioxidant for the color developing agent. The amplified color developing composition can be formulated using a two- or three-part processing kit. The composition can be used to provide images in various color photographic silver halide materials such as color photographic papers.