| 摘要 |
PROBLEM TO BE SOLVED: To improve the early coloring concentration on without lowering the saturation coloring concentration by a method wherein the specified amount of an alkali salt of a fatty acid is included in developer in this pressure-sensitive duplicating developed sheet, the developer of which is made of a polyvalent metallic salt of a salicylic acid derivative. SOLUTION: In this pressure-sensitive duplicating developed sheet, the developer of which is made of a polyvalent metallic salt of a salicylic acid derivative, an alkali salt of a fatty acid, which is 5-50wt.% of the developer, is included. In the case that the alkali salt of the fatty acid used here is included in the developed layer of the pressure-sensitive duplicating developed sheet, when the developed layer contacts with an oily substance, in which a coloring agent is dissolved, instantly the diffusibility, permeability and adsorbability of the developed layer are improve. If the content of the alkali salt of the fatty acid is too small, no favorable early coloring concentration is obtained. If that content is too large, though favorable early coloring concentration is obtained, low saturation coloring concentration is resulted due to the impeded developing capacity. |
