A method of forming a photographic azo or azamethine dye image in an exposed photographic silver halide element, the method of comprising the steps of (a) developing the imagewise exposed material to form an imagewise pattern of oxidized color developing agent, (b) reacting the oxidized color developing agent with a color coupler to produce an image dye, characterized in that at least one of the color developing agent and the color coupler possesses a metal chelating site such that the image dye is capable of forming a bi-, tri- or higher-dentate metallized dye, and (c) contacting the image dye with polyvalent metal ions to form a metallized dye image. Specified color developing agents include heterocyclic substituted hydrazides and specified couplers include benziso-oxazolones and 2H-pyrazolo-[3,4-b]pyridines in addition to more conventional compounds.
                            一种在曝光的
银卤化物感光元件中形成光敏偶氮或
偶氮甲烷染料图像的方法,该方法包括以下步骤:(a)将显影图像暴露的材料进行显影,形成氧化的彩色显影剂的显影图像,(b)将氧化的彩色显影剂与彩色偶合剂反应,生成图像
染料,其特征在于,彩色显影剂和/或彩色偶合剂中至少有一种具有
金属螯合位点,使得图像
染料能够形成双、三或更高配位的
金属化
染料,(c)将图像
染料与多价
金属离子接触,形成
金属化
染料图像。指定的彩色显影剂包括杂环取代
肼和指定的偶合剂包括苯并
异噁唑酮和2H-
吡唑并[3,4-b]
吡啶,除了更常见的化合物。