| 摘要 |
<p>PURPOSE:To prepare the title ink having an excellent dispersion stability of a colorant in the ink and forming a recording image with high density, contrast, and resolution without blurring by incorporating emulsified or dispersed polymer particles dyed with a dye as the colorant into the ink. CONSTITUTION:In step A, an emulsion wherein spherical polymer particles 4A are dispersed in an aq. medium 3 is prepd. by emulsion or dispersion polymn. In step B, a suitable dye 6, e.g. a disperse dye, is added to the emulsion to dye the particles. Thus, as shown in step C, substantially the whole of the dye is exhausted to give dyed particles 4. The resulting emulsion, as such or after being subjected to treatments necessary to produce an ink, is used as an ink. The ink has an improved dispersion stability, is prevented from blurring of ink dots, and forms a recording image high in the density, contrast, and resolution and excellent in the water resistance and fixability.</p> |
