| 摘要 |
PURPOSE:To perform many-time printing of high density by containing a vinyl type polymer and polyester both of which respectively have a specific range of I/O values, heat-meltable substance and a colorant in a heat-meltable ink layer as essential components. CONSTITUTION:As the vinyl type polymer whose inorg. value/org. value (I/O value) is 0.1 - 0.4 contained in a heat-meltable ink layer, an ethylene/acrylic acid copolymer (acrylic acid content : 3 - 11%) or an ethylene/methyl acrylate copolymer (methyl acrylate content : 5 - 23%) is designated. As polyester, one whose I/O value is 0.45 - 0.75 is adapted and a combination of ethylene glycohol/ sebacic acid or butadiene/sebacic acid is designated. As a heat-meltable substance, a compound with an m.p. of 100 deg.C or less such as beeswax, carnauba wax or Japan wax is designated and, as a colorant, any transferable colorant may be used. |
