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US 6,783,581 B2Granted
Ink-jet ink comprising a glycol compound with grafts
AssigneeBenq Corporation
InventorsYu-Chang Shen, Chia-Hsin Chien, Yu-Ting Lin
Life of this patent
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Abstract
An ink-jet ink comprising a glycol compound with grafts, an aqueous solution, a pigment as a colorant, a surfactant, and a humectant is disclosed. The ink-jet ink has low surface tension and high drying speed. Moreover, the ink-jet ink has high adhesive force between the ink drops and the printing medium, and thus provides the printing medium with high water fastness.
Claims16
An ink-jet ink composition, comprising:
- at least one colorant, wherein the colorant is a dispersing pigment;
- a medium comprising an aqueous solution;
- and
- at least one water-soluble glycol compound with grafts selected from the group consisting of 2,4-diethyl-1,5-pentanediol, 2-butyl-2-ethyl-1,3-propanediol, 2,2-dimethylpropane-1,3-diol and 2,5-dimethylhexane-2,5-diol.
1 more element
A method of ink-jet printing, comprising the steps of:
- providing an ink-jet ink composition, comprising:
- at least one colorant, wherein the colorant is a dispersing pigment;
- a medium comprising an aqueous solution;
- at least one water-soluble glycol compound with grafts selected from the group consisting of 2,4-diethyl-1,5-pentanediol, 2-butyl-2-ethyl-1,3-propanediol, 2.2-dimethylpropane-1,3-diol and 2,5-dimethylhexane-2,5-diol;
- and
- printing the ink-jet ink composition on a printing media by means of an ink-jet pen.
3 more elements
Dependencies are inferred from the claim text.