| 摘要 |
PURPOSE:To enable multicolour simultaneous recording to be performed by a method wherein an ink ribbon is prepared by making a microcapsule contain respectively independently each set of a dye and a colour erase agent. CONSTITUTION:Microcapsules 3, 4, 5, 6, 7, and 8 involving independently leuco type dyes LY1, LC1, LY2, LM2, LY3, and LM4 presenting respective series of, from a low temperature side, yellow, magenta, cyan, middle colour between cyan and yellow, middle colour among cyan, yellow, and magenta, middle colour between cyan and magenta, and middle colour between magenta and yellow, and diazo type dyes of DM1, DC2, and DM3, are prepared. Microcapsules 9 involving respectively independently colour erase agents DE1, DE3 erasing respective colour series of yellow, magenta, cyan, middle colour between yellow and magenta and middle colour between cyan and magenta and a microcapsule 10 containing respectively independently LE2 and LE4, are respectively prepared. Microcapsule solution is applied to a ribbon material 2. |
