| 摘要 |
<p>PURPOSE:To obtain a color filter on which a blue colored film provided with a color characteristic and light and heat resistance concurrently is mounted by using the water-soluble anthraquinone compounds expressed by specified formulas or mixtures of them. CONSTITUTION:In a color filter where one or a plurality of colored films are installed on the surface of a substrate made up of glass, etc., at least one colored film is dyed with the watersoluble anthraquinone compounds expressed by formula I or their mixture. In formula I, m = an integar of 1-3, n = an integar of 1 or 2, X = formula II, etc., in the case of n=1, and formula III, etc., in the case of n=2. M represents H, Na, K, Li, NH, etc. In formula II, R represents hydrogen, sulfonic acid group, carboxyl group, halogen, nitro group, methyl group or hydroxyl group, and p represents an integar of 1-4. In formula III, R2 represents hydrogen, sulfonic acid group or carboxyl group.</p> |
