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US 7,402,613 B2Granted
Colored fine particle dispersion and a water-based ink for an ink-jet system
AssigneeKonica Corporation
InventorsHidetaka Ninomiya, Hiroaki Ando
Life of this patent
Estimating the term…
Abstract
A water-based ink for ink-jet printing, comprising colored particles containing: (a) a core particle having a colorant; and (b) a shell having a resin and encapsulating the core particle, wherein the resin comprises a monomer unit having a hydroxyl group in an amount of 0.1 to 50 weight % based on the total weight of the shell.
Claims7
A water-based ink for ink-jet printing, comprising colored particles containing:
- (a) a core having a dye and a polymer, wherein the core is prepared by a method in which an oil dye is dissolved in a monomer and after being emulsified in water the dye is incorporated into the polymer by polymerization;
- and
- (b) a shell having a polymer comprising monomers having a hydroxyl group and encapsulating the core,
- wherein a total weight of the monomers is an amount of 0.1 to 50 weight % based on the total weight of the shell.
1 more element
Dependencies are inferred from the claim text.