Ink composition with uv-curable polymeric resin background
AssigneeHewlett-Packard Indigo B.V.
InventorsHannoch Ron, Daniel Skvirsky
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Abstract
Provided in one example herein is a liquid electrophotographic ink composition. The composition comprises a charge director; a non-polar carrier fluid comprising a polymer; and ink particles each comprising a polymeric resin mixture comprising a first polymeric resin having a first melting temperature and a second polymeric resin having a second melting temperature. The second polymeric resin may be a UV-curable polymer that is solid at room temperature, and the second melting temperature is lower than the first melting temperature.
Claims15
A liquid electrophotographic ink composition, comprising:
- a charge director;
- a non-polar carrier fluid comprising a polymer;
- and
- ink particles each comprising a polymeric resin mixture comprising a first polymeric resin having a first melting temperature and a second polymeric resin having a second melting temperature;
- wherein the second polymeric resin is a UV-curable polymer that is solid at room temperature, and the second melting temperature is lower than the first melting temperature.
A method of printing a liquid electrophotographic ink composition, the method comprising:
- disposing a liquid electrophotographic ink composition over a substrate, the composition comprising:
- a charge director;
- a non-polar carrier fluid comprising a polymer;
- and
- ink particles each comprising a polymeric resin mixture comprising a first polymeric resin having a first melting temperature and a second polymeric resin having a second melting temperature;
- wherein the second polymeric resin is a UV-curable polymer that is solid at room temperature, and the second melting temperature is lower than the first melting temperature;
- heating the disposed liquid electrophotographic ink composition to a temperature such that the second polymeric resin is at least partially melted;
- and
- exposing the heated liquid electrophotographic ink composition to UV-radiation to cure at least the second polymeric resin.
A liquid electrophotographic ink composition, comprising:
- a charge director;
- a non-polar carrier fluid comprising a polymer;
- and
- ink particles each comprising a polymeric resin mixture comprising a first polymeric resin having a first melting temperature and a second polymeric resin having a second melting temperature;
- wherein
- the second polymeric resin is a UV-curable polymer that is solid at room temperature and comprise an aliphatic urethane acrylate;
- the second polymeric resin is between about 20 wt % and about 80 wt % of the ink particles;
- and
- the second melting temperature is lower than the first melting temperature.
Dependencies are inferred from the claim text.