Additive to aqueous-based inks to improve print quality

Details Additive to aqueous-based inks to improve print quality Additive to aqueous-based inks to improve print quality

1990-03-15

1992-03-24

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 20, C09D 1102

Patent

active

050984764

ABSTRACT:
A method for improving the print quality of ink used in ink-jet printers, particularly thermal ink-jet printers, is provided. For an ink typically comprising about 90 to 98 wt % water and about 10 to 2 wt % diethylene glycol plus about 0.1 to 12 wt % dye, the improvement is achieved by adding an additive consisting essentially of about 1 to 30 wt % ethanol, about 1 to 30 wt % n-propanol, about 1 to 10 wt % iso-propanol, or about 0.002 to 0.05 wt % of 2,5,8,11-tetramethyl-6-dodecyn-5,8-diol.

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