Nonaqueous ink composition for ink jet and method of manufacturing ink comprising the same

摘要

A nonaqueous ink composition for an ink jet and a method of manufacturing ink comprising the same are provided. The nonaqueous ink composition for the ink jet includes: a glycol ether acetate solvent represented by a specific chemical formula; and a polypropylene glycol binder represented by a specific chemical formula. The nonaqueous ink composition for an ink jet has dynamic viscoelasticity obtained by a chemical interaction between the solvent and the binder, exhibits excellent print quality and is capable of high-speed printing.

主权项

1. A nonaqueous ink composition for an ink jet, comprising:
a glycol ether acetate solvent represented by the following chemical formula (1): where n is an integer of 1 or 2, R1 is alkyl or aryl having 1 to 7 carbon atoms, and R2 is hydrogen or methyl; and a mixture of polypropylene glycols represented by the following chemical formula (2): where n is an integer of 3 or more, the mixture of polypropylene glycols comprising two or more polypropylene glycols having different molecular weights, a content of the glycol ether acetate solvent being 30 to 60% by weight with respect to the weight of the composition, and a content of the mixture of polypropylene glycols being 40 to 70% by weight with respect to the weight of the composition.