Ink jet ink, ink jet recording method, ink cartridge,...

Details Ink jet ink, ink jet recording method, ink cartridge,... Ink jet ink, ink jet recording method, ink cartridge,...

2009-02-20

2011-10-04

Klemanski, Helene (Department: 1734)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031580, C347S100000

Reexamination Certificate

active

08029612

ABSTRACT:
The present invention provides an ink jet ink, which gives a superior lightfastness to an ink image, has a superior sticking resistance and intermittent ejection stability, and gives a preferable color tone to the image. The ink includes an azo-based dye represented by formula (I) and a water-soluble organic solvent represented by bis(2-hydroxyethyl)sulfone represented by formula (II).

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Jun. 2, 2011 Chinese Official Action in Chinese Patent Application No. 200910129241.5.

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