Ink jet ink composition
AssigneeEastman Kodak Company
InventorsXiaoru Wang, David Erdtmann, Karen J. Klingman
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Abstract
An ink jet ink composition comprising water, a humectant, and composite colorant polymer particles, wherein the composite colorant polymer particles having a colorant phase and a polymer phase, the polymer phase of the particles being formed in situ in the presence of the colorant, the composite colorant polymer particles not increasing in mean particle size more than about 50% when said ink is incubated for one week at 60° C.
Claims16
An ink jet ink composition comprising water, a humectant, and composite colorant polymer particles, wherein said composite colorant polymer particles have a pigment phase and a polymer phase, said polymer phase of said particles being formed in situ, wherein a portion of an addition polymerization initiator is added to an aqueous colorant mixture before adding a monomer mixture to the colorant mixture in a continuous process, said composite colorant polymer particles not increasing in mean particle size more than about 18% when said ink is incubated for one week at 60° C.
An ink jet ink composition comprising water, a humectant, and composite colorant polymer particles, wherein said composite colorant polymer particles have a pigment phase and a polymer phase, said polymer phase of said particles being formed in situ, wherein a portion of an addition polymerization initiator is added to an aqueous colorant mixture before adding a monomer mixture to the colorant mixture in a continuous process and wherein said aqueous colorant mixture consists essentially of colorant particles, dispersants or surfactants, and water, said composite colorant polymer particles not increasing in mean particle size more than about 18% when said ink is incubated for one week at 60° C.
Dependencies are inferred from the claim text.