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US 5,290,346 AGranted
Ink for printer
AssigneeBrother Kogyo Kabushiki Kaisha
InventorMasaya Fujioka
Life of this patent
Estimating the term…
Abstract
An ink for an ink jet printer capable of decoloring a recorded image or changing a color of the recorded image to thereby save resources, improve economy, and improve functionality. As a coloring composition of the ink, an organoboron salt of cyanine dye and an ammonium salt of organoboron are employed in combination. After printing, the recorded image is decolored by irradiating near infrared light emissions onto a recording surface of a recording paper. As a result, the recording paper can be reused.
Claims14
An ink for a printer, comprising:
- a coloring composition comprising an organoboron salt of a cationic dye and an ammonium salt of organoboron that is capable of being one of decolored and changed in concentration of color by addition of external energy;
- and
- a vehicle for retaining the coloring composition.
Dependencies are inferred from the claim text.