PRETREATMENT METHOD FOR INK-JET RECORDING MATERIAL

摘要

The present invention refers to a method for incorporating a color fading inhibitor compound into an ink jet recording microporous material comprising a support and at least one porous ink receiving layer coated thereon by applying a re-wetting solution comprising said color fading inhibitor compound to said ink-jet recording microporous material after that said ink-jet recording microporous material has been completely dried. The method of the present invention allows the color fading inhibitor compounds to be incorporated into any ink-jet recording microporous material, giving improved weather storage characteristics over time, such as air resistance, without generating unacceptable coating defects. According to another embodiment, the present invention relates to the use of are-wetting solution comprising a color fading inhibitor compound applied to an ink-jet recording microporous material after that said microporous material has been completely dried to improve the aerial oxidation resistance of images to be recorded on said microporous material. In a third embodiment, the present invention relates to an ink-jet recording microporous material wherein said microporous material is obtainable by applying to said microporous material a re-wetting solution comprising a color fading inhibitor compound after that said microporous material has been completely dried. In a fourth embodiment; the present invention relates to a re-wetting solution to re-wet an ink-jet recording microporous material, wherein said re-wetting solution comprises a color fading inhibitor compound, and one or more solvents selected from the group consisting of an organic solvent and an aqueous solvent.