| 摘要 |
PURPOSE:To perform printing using head foamable ink imparting beautiful finish and having good efficiency in low cost, by further applying color ink onto the heat foamable colorless ink printed to an object to be printed to perform double printing. CONSTITUTION:For example, arbitrary printing is performed onto an object 1 to be printed by using heat foamable colorless ink (ink prepared by mixing a synthetic resin microcapsule with a particle size of 10-30mum having butane enclosed therein in a vehicle) 2, for example, according to an offset method and, thereafter, usual color ink 3 is used to be superposed on the heat foamable ink 2 to perform double printing, for example, according to an offset method. After printing, the object 1 to be printed is passed between hot rollers 4, 4' heated to 120 deg.C or more to perform objective printing while foaming the heat foamable ink 2. |
