Hot melt ink printing

Details Hot melt ink printing Hot melt ink printing

B - Operations, Transporting

41

F

101/106, 101/96.

B41F 1/40 (2006.01) B41J 2/17 (2006.01) G01D 15/16 (2006.01)

Patent

CA 2001474

Hot Melt Ink Printing Abstract In the particular embodiment of the invention described in the specification, a hot melt ink print is prepared by applying the ink to a porous substrate (12), permitting it to solidify, and reheating the substrate and the ink to a temperature 5°C to 30°C above the melting point of the ink for 0.5 to 10 sec- onds. In one embodiment, the porous substrate (12) is supported on a platen (13) which is maintained at least 30°C below the melting point of the ink to pre- vent drying of the substrate and to inhibit spreading of the ink into the substrate. The subsequent reheat- ing of the ink in a controlled manner causes the ink to penetrate to a desired extent into the substrate while preventing shrinkage or cockling of the sub- strate.

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