An improved ink suitable for ink jet printing comprising, a mixture of a colorant, an arylketoalkene stabilizing compound or a photoreactor, and a liquid vehicle, wherein the colorant is light-stable. When the photoreactor is combined with a wavelength-selective sensitizer to form a radiation transorber,...http://www.google.com.au/patents/US6235095?utm_source=gb-gplus-sharePatent US6235095 - Ink for inkjet printers
