Printing compositions
AssigneeCanadian Fine Color Company, Limited
InventorMichael J. Miller
Life of this patent
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Abstract
The present invention is directed to a printing composition, in particular, a paste printing ink vehicle for effecting the setting of a paste printing ink by penetration into a substrate, the vehicle utilizing a vegetable oil fatty acid esterified with a simple alcohol or glycol as a solvent. The use of the esterified fatty acid as a solvent in the printing ink vehicle enables the production of novel petroleum distillate free paste printing inks having characteristics substantially similar to that of conventional petroleum distillate based printing inks.
Claims27
A paste printing ink vehicle for effecting the setting of a paste printing ink by penetration into a substrate, said vehicle utilizing as a solvent a vegetable oil fatty acid esterified with a simple alcohol or glycol.
A paste printing ink vehicle for effecting the setting of a paste printing ink by penetration into a substrate, said vehicle comprising more than 20% and up to 80% by weight of vegetable oil fatty acids esterified with a simple alcohol or glycol as a solvent, about 15 to 65% by weight of an ester of rosin or modified rosin as a hard resin, 0 to about 20% by weight of a vegetable oil as a cosolvent, 0 to about 25% by weight of a vegetable oil modified polyester as an additional film forming agent and 0 to about 2% by weight of an oxyaluminum acylate as a gelling agent.
A paste printing ink for use in letterpress or lithographic printing processes, said ink comprising a printing ink vehicle for effecting the setting of said ink by penetration into a substrate and a pigment dispersed in said vehicle, said vehicle utilizing as a solvent, vegetable oil fatty acids esterified with a simple alcohol or glycol.
Dependencies are inferred from the claim text.