Water based ink for ink-jet printing
AssigneeHewlett-Packard Company
InventorsRoland Meichsner, Werner Schmickl
Life of this patent
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Abstract
Water based ink for ink-jet printing, consisting of: 0.5-8 wt % water soluble dye 1-64 wt % glycol 0.01-5 wt % wetting agent 0.01-2.0 wt % preservative, pH-regulator, complexing agents and/or other additives, as well as distilled water, where glycol consists of triethylene glycol or a mixture of triethylene glycol and ethylene glycol and the wetting agent is a formulation of the following structure ##STR1## where R=OH or R=(O--CH.sub.2 --CH.sub.2).sub.n --OH with n=1 to 30.
Claims6
Water based ink for ink-jet printing, consisting essentially of:
- 0.5-8 wt % water soluble dye,
- 1-64 wt % glycol comprising a mixture of ethylene glycol and triethylene glycol in a ratio of 0.1 to 6.0,
- 0.01-5 wt % wetting agent,
- 0.01-2.0 wt % preservative, pH-regulator, complexing agents, other additives, or mixtures thereof,
- as well as distilled water,
- where the wetting agent is a formulation of the following structure ##STR6## where R=OH or R=(O--CH.sub.2 --CH.sub.2).sub.n --OH with n=1 to 30.
Water based ink for ink-jet printing, consisting essentially of:
- 0.5-8 wt % water soluble dye,
- 1-64 wt % glycol comprising a mixture of ethylene glycol and triethylene glycol in a ratio of 0.1 to 6.0,
- 0.01-5 wt % wetting agent,
- 0.01-2.0 wt % preservative, pH-regulator, complexing agents, other additives, or mixtures thereof,
- as well as distilled water,
- where the wetting agent is a formulation of the following structure ##STR8## known as 2,4,7,9-tetramethyl-5-decyne-4,7-diol.
Dependencies are inferred from the claim text.