Process for making an ink jet ink
AssigneeEastman Kodak Company
InventorsCharles E. Romano, Jr., Karen E. Maskasky, Robert A. Guistina
Life of this patent
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Abstract
A process for making an ink jet ink comprising: a) providing a dispersion containing a pigment, an alcohol carrier and an amine-terminated polyether dispersant; b) mixing the pigment dispersion with rigid milling media less than 100 μm; c) introducing the mixture of step (b) into a mill; d) milling the mixture from step (c) until the pigment particle size is below about 100 nanometers; e) separating the milling media from the mixture milled in step (d); and f) diluting the mixture from step (e) to obtain an ink jet ink having a pigment concentration suitable for ink jet printers.
Claims10
A process for making an ink jet ink comprising:
- a) providing a dispersion containing a pigment, an alcohol carrier and an amine-terminated polyether dispersant;
- b) mixing the pigment dispersion with rigid milling media having a particle size less than 100 μm;
- c) introducing the mixture of step (b) into a mill;
- d) milling the mixture from step (c) until the pigment particle size is below about 100 nanometers;
- e) separating the milling media from the mixture milled in step (d);
- and
- f) diluting the mixture from step (e) to obtain an ink jet ink having a pigment concentration suitable for ink jet printers.
Dependencies are inferred from the claim text.