Method and apparatus for controlling characteristics of fogged silverhalide emulsions
专利汇可以提供Method and apparatus for controlling characteristics of fogged silverhalide emulsions专利检索，专利查询，专利分析的服务。并且METHOD AND APPARATUS FOR MAINTIANING OPTIMUM FOG LEVELS IN FOGGED SILVER EMULSIONS BY CONTROLLING THE DEVELOPMENT RATE CHARACTERISTICS THEREOF. A DEVELOPING AGENT IS ADDED TO A SAMPLE OF THE LIQUID EMULSION PRIOR TO ITS COATING ON A SUBSTRATE, AND THE DENSITY OF THE DEVELOPING SAMPLE IS MEASURED AT FIRST AND SECOND TIME INTERVALS FOLLOWING THE ADDITION OF THE DEVELOPER. THE RATIO OF THE TWO DENSITY MEASUREMENTS IS THEN COMPARED WITH A PREDETERMINED VALUE REPRESENTING OPTIMUM DEVELOPMENT RATE CHARACTERISTICS, AND THE PH OF THE EMULSION IS ALTERED IN THE EVENT THE MEASURED DENSITY RATIO DIFFERS FROM THE PREDETERMINED VALUE, THE PH BEING INCREASED IN THE EVENT THE DENSITY RATIO IS LESS THAN THE PREDETERMINED VALUE, AND DECREASED IF THE DENSITY RATIO IS GREATER THAN THE PREDETERMINED VALUE. THE PH OF THE EMULSION IS HELD AT THIS HIGHER OR LOWER VALUE FOR SUCH TIME AS IS REQUIRED TO BRING THE DENSITY RATIO OF THE EMULSION TO APPROXIMATELY THE PREDETERMINED VALUE REPRESENTATIVE OF OPTIMUM FOG LEVEL JUST PRIOR TO COATING.，下面是Method and apparatus for controlling characteristics of fogged silverhalide emulsions专利的具体信息内容。
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