| abstract |
Radiation curable inks with a moderate amount of solvent with low surface tension have unique processing properties that form and cure inkjet features with excellent flow, adhesion, dot gain, compatibility, weatherability and cure properties I will provide a. In a typical printing method, an ink-jettable ink composition comprising one or more oligo / resins, a radiation curable reactive diluent having a surface tension, and 1-15% by weight of a solvent component comprising a solvent having a surface tension. Is provided. The solvent surface tension is less than or equal to the approximate surface tension of the reaction diluent, and is preferably at least 2 dynes / cm below the surface tension of the reaction diluent. The ink composition is inkjetted onto a substrate to form inkjet features. The amount of cure energy under conditions effective to at least substantially cure the radiation-curable component of the printing feature and at least substantially dry the inkjet feature while at least some solvent is still present in the inkjet feature. Expose the inkjet features. |