Aqueous ink-jet ink containing low boiling point compositions
AssigneeDupont Electronics, Inc.
InventorsWaifong Liew Anton, Xiaoqing Li
Life of this patent
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Abstract
An aqueous ink-jet ink which contains an aqueous vehicle, a dispersed binder, and one or more nonionic surfactants. The aqueous vehicle contains solvents with boiling points less than 200° C., or solvents with boiling points greater than 200° C. and having a solubility of water in solvents of less than 50% by weight. The ink is particularly advantageous for printing on coated offset media with.
Claims15
An aqueous inkjet ink for printing on coated media, said ink comprising a dispersed pigment, an aqueous vehicle, a dispersed polymeric binder, and one or more nonionic surfactants, wherein said aqueous vehicle comprises one or more members of Group A solvents and one or more members of Group B solvents, wherein said Group A solvents contain two or more hydroxyl moieties per solvent molecule, and said Group B solvents contain one or no hydroxyl moiety per solvent molecule, and wherein said Group A solvents are selected from the group consisting of methyl pentane diol, and propane diol;
- and said Group B solvents are selected from the group consisting of propylene glycol di-methyl ether, propylene glycol n-propyl ether, dipropylene glycol methyl ether, dipropylene glycol n-propyl ether, dipropylene glycol n-butyl ether, tripropylene glycol n-propyl ether, tripropylene glycol n-butyl ether, propylene glycol methyl ether acetate, and dipropylene glycol methyl ether acetate.
Dependencies are inferred from the claim text.