B - Operations – Transporting – 41 – M
Patent
B - Operations, Transporting
41
M
B41M 5/34 (2006.01) B41M 1/14 (2006.01) B41M 7/00 (2006.01)
Patent
CA 2045074
In the particular embodiments of the invention described in the specification, an opaque subtractive color ink reflection print having improved color pu- rity resulting from reduced frosting and crystalliza- tion of the ink layers is prepared by reheating the ink image to a temperature above the melting point of at least one of the inks and then quenching the image by cooling it at a rate of at least 50°C per second. In one embodiment, the ink image is produced by an ink jet head (10) applied to a substrate (14) supported on a platen (15) maintained at least 20°C below the melt- ing point of the inks to inhibit spreading of the inks into the substrate, and the image is thereafter heated by a heater (28) to a temperature at least 20°C above the melting point of at least one of the inks for a period of 3 to 5 seconds and then quenched by a quenching platen (32) at a rate of 500°C per second to produce an image having less than 20% light loss re- sulting from scattering of light by frosting and crys- tallization of the ink in the layers.
Fulton Steven J.
Hoisington Paul A.
Spehrley Charles W. Jr.
Young Lawrence R.
Dimatix Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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