| 摘要 |
Thermoplastic inks in the nature of high viscosity, tacky pastes which exhibit high cohesive strenght, high pressure sensitivity at low temperatures, high thermal stability and low affinity for silicone surfaces are particularly useful in those printing processes involving multiple elastomeric transfer members, in particular, those processes wherein silicone transfer members print successive colours onto a silicone collector which in turn transfers the multicoloured print in a single step to ware or decal paper. The ink formulations consist essentially, in weight percent, of: (a) 50-80% of a pigmented, vitreous, inorganic flux; (b) 2-20% of a selected organic polymer; (c) 5-25% of a selected plasticizer; (d) 2-20% of a selected amorphous tackifying resin; and optionally, (e) up to 20% of an organic wax. i |
