| 摘要 |
<p>A water-insoluble pigment comprising a complex of an inorganic water-insoluble anion exchange material and a watersoluble dye is disclosed, wherein the anionic exchange material is represented by the formula (I) where M is a metal element or elements each with a positive valence of a; Q is a metal element or elements each with a positive valence of a+1; a is 2, 3, 4 or 5; A-1, A-2, A-3, and A-4 are each one or more exchangeable anions each having a negative valence of 1, 2, 3, and 4, respectively; x is o < x < 0.5; and n, y, z, d, e, f, and g are real numbers greater than or equal to zero and satisfy the following: 2y + z = a o < d + 2e + 3f + 4g < x O < n < 10 provided that when y = O, a is not equal to 2.</p> |
