| 摘要 |
PROBLEM TO BE SOLVED: To realize the prevention of the blurring of an ink-jetted image and the lowering of the image density by getting wet with water from developing by a method wherein the printing pH of a developer layer is prepared to have the specified value by means of organic alkali in the manufacturing method of a pressure-sensitive copying developing sheet, which is prepared by providing an inorganic developer-containing developing layer on a support. SOLUTION: In this pressure-sensitive copying developing sheet, in which an inorganic developer is employed as an electron accepting developer having ink jet recordability, the pH of a developer paint is prepared to be pH9 or higher by means of organic alkali. As the inorganic developer, activated clay, acid clay, bentonite or the like is exampled. As the inorganic pigment, calcium carbonate, magnesium carbonate, zinc oxide, titanium oxide or the like is exampled but not confined thereto. As the organic alkali used as the pH controller, ethylene diamine, diethylene triamine, an aqueous ammonia solution or the like containing no metal salt can be used but not confined thereto. |
