Hot melt impulse ink jet ink with dispersed solid pigment in a h

Details Hot melt impulse ink jet ink with dispersed solid pigment in a h Hot melt impulse ink jet ink with dispersed solid pigment in a h

1991-12-12

1997-01-07

Reinhart, Mark J.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

347 99, B41J 217

Patent

active

055922040

ABSTRACT:
A novel hot melt ink jet ink is disclosed for use in an impulse ink jet apparatus. The disclosed ink comprises a dispersed solid pigment which is formulated in a wax, or high molecular weight fatty acid or alcohol vehicle to form a hot melt ink which is solid at room temperature. The provision of such a pigment containing ink provides a high quality ink which is stable for long periods of time at relatively high temperatures. In the preferred embodiments, a dispersed graphite in a non-evaporative oil carrier, such as mineral oil, is formulated with candelilla wax, stearic acid and/or behenic acid.

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