Ink-jet recording medium for dye- or pigment-based ink-jet inks

Coating processes – With post-treatment of coating or coating material – Liquid extraction of coating constituent or cleaning coating

Reexamination Certificate

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Details

C427S256000, C427S387000, C427S394000, C427S395000, C428S327000, C428S387000, C428S394000, C428S395000, C428S404000, C428S331000, C428S332000, C428S446000, C428S452000

Reexamination Certificate

active

07744959

ABSTRACT:
The present invention is drawn to a method of preparing a porous media substrate, comprising combining metal or semi-metal oxide particulates with a polymeric binder, wherein the metal or semi-metal oxide particulates are associated with at least one water soluble coating formulation additive. At least a portion of the water soluble coating formulation additive i) is in the form of unreacted additive, or ii) generates undesired electrolytes. Additional steps include removing at least a portion of the unreacted additive or undesired electrolytes, either before or after combining the metal or semi-metal oxide particulates with the polymeric binder, thereby forming a refined coating composition; and applying the refined coating composition to a media substrate to form an ink-receiving layer having a porous surface.

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Notice of JP OA Dated Jan. 25, 2010.

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