| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject ink capable of simplifying coating process, excellent in weatherability and alkali resistance, and suitable for sheathing use and mortar application, comprising a highly weatherable pigment, highly alkali-resistant pigment and a binder excellent in both weatherability and alkali resistance. SOLUTION: This ink comprises (A) a highly weatherable pigment, (B) a highly alkali-resistant pigment, and ((C) a binder excellent in both weatherability and alkali resistance. Specifically, for example, by using a pigment selected from quinacridone-, perylene-and anthracene-based red pigments as the co> component A and a polyazobased red pigment as the component B, the objective ink of red color is obtained. The component (C is pref. composed of a vinyl chloride-vinyl acetate copolymer and an epoxy compound-based stabilizer. Besides, it is preferable that this ink is incorporated with stabilizer(s) such as an ultraviolet light absorber and/or antioxidant in order to prevent the components A to C from degradation or discoloration. |
