The Physicochemical Environment of Acid Red 249 Insolubilized in an Ink-Jet Paper

摘要

The physicochemical environment of the dye in the printed image influences the image quality. In this investigation, the environment of the dye in the ink-receiving layer has been deduced from the results of studies of the interaction between a dye and certain ink-jet chemicals. The interaction among the dye Acid Red 249, silica as a white pigment, Polyfix 601 as a dye-fixing agent that is a cationic polymer, and polyvinyl alcohol as a binder has been investigated in aqueous solution and in the solid state. We conclude that Acid Red 249, printed on a receiving paper that includes Polyfix 601, mainly forms an ionic complex with Polyfix 601 dispersed in the polyvinyl alcohol layer; some dye remains as a solid layer on the surface.