Compositions – Magnetic – Iron-oxygen compound containing
Patent
1997-04-30
1998-08-11
Bonner, Melissa
Compositions
Magnetic
Iron-oxygen compound containing
252 6254, 252 6251R, 106 3192, 106 3164, 106 3132, C09D 523, C09D 1100
Patent
active
057923809
ABSTRACT:
An ink jet printing ink composition is disclosed for use with an ink jet printing apparatus comprising a printhead, an ink delivery system adapted to provide the ink to the printhead, and a sensor associated with the ink delivery system adapted to produce a signal which is characteristic of the concentration of a label material in a printing ink, where said signal is used to indicate the appropriateness of using a particular printing ink. The ink composition comprises a carrier, a colorant, and a predetermined concentration of a distinct label material, the weight ratio of the label material to the colorant being less than 1. The label material may be easily detected by a sensor associated with the ink delivery system.
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James Robert O.
Oltean George L.
Wen Xin
Anderson Andrew J.
Bonner Melissa
Eastman Kodak Company
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