| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain the subject composition providing a dispersed type coloring pattern while keeping spectrum characteristics of a water-soluble dye, and useful for an image displaying device such as a TV by dispersing a salt of a water-soluble coloring matter and a specific amine in an organic solvent. SOLUTION: The objective composition is obtained by dispersing a salt of (A) a water-soluble coloring matter having a sulfonic acid group and (B) an amine having a skeleton structure of formula I, preferably a primary amine of formula II R1 to R5 are each H or a 1-5C alkyl; (x) is 1-8; (y) is 1-[8-(x)]; (m) is 1-3; (n) is 1-6} in an organic solvent (preferably an organic solvent without an alcoholic hydroxy group). The salt can be obtained by dissolving the component A in water if necessary by heating, regulating the pH of the solution of the component A so as to be 5-9 by a basic aqueous solution of sodium hydroxide or the like or an acidic aqueous solution of hydrochloric acid or the like, adding an aqueous solution obtained by dissolving the component B in an acid such as acetic acid to the above obtained solution with pH 5-9 under stirring, and filtering, washing and drying the precipitated product.</p> |
