| 摘要 |
<p>A thermal transfer ink composition using a basic dye (cationic dye). The composition contains a basic dye and an organic polymer, and the basic dye is dispersed or dissolved in the organic polymer with a solubilizer having compatibility with both the dye and the polymer. The solubilizer is an amphipathic compound, and preferably has an HLB value of at least 7. When an ink layer containing this composition is formed on a support member, a thermal transfer ink ribbon is obtained. A sheet for thermal transfer used has an acceptor layer containing an interlayer compound substituted by an ion exchangeable with the basic dye and a binder resin. The ion exchangeable with the basic dye may consist of an organic ion, such as an organic onium ion. The ink layer of the thermal transfer ink ribbon and the acceptor layer of the sheet for thermal transfer are laminated face-to-face, and this laminate is heated to transfer the basic dye contained in the ink layer to the acceptor layer.</p> |
