| 摘要 |
PURPOSE:To improve fading of a coloring image due to sunshine and the stable ness to water, by incorporating polyvalent metal salt of carboxylated terpene phenol resin and/or a reaction compound of carboxylated terpene phenol resin, aromatic carboxylic acid and polyvalent metal compound in a developer layer containing inorganic solid state acid. CONSTITUTION:Inorganic solid acid includes acidic clay, attapulgite, zeolite, bentonite, etc. Carboxylated terpene phenol resin is obtained by addition reaction of gum turpentine, cyclic mono-terpenes, mono-phenols or polyhydric phenols in petroleum solvent in the presence of acid catalyst to produce a condensate. Polyvalent metal salt of carboxylated terpene phenol resin is obtained by reacting carboxylated terpene phenol resin under heat with polyvalent metal oxide in the presence of an inorganic ammonium salt. Reaction compound of carboxylated terpene phenol resin and aromatic carboxyl acid and polyvalent compound is obtained by uniform mixture of carboxylated terpene phenol resin, aromatic carboxylic acid and polyvalent metal compound. |
