Ink recordable substrate coating composition having a pH less than 7
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United States of America Patent
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Jan 23, 2007
Grant Date -
May 13, 2004
app pub date -
Sep 3, 2003
filing date -
Aug 1, 2001
priority date (Note) -
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Abstract
A water resistant coating composition for ink jet recordable substrates having a pH of less than 7, which includes: (a) an aqueous polyurethane dispersion; and (b) an aqueous solution of a nitrogen containing polymeric dye fixative compound. When applied to a suitable substrate, the coating composition allows for the recording of sharp, waterfast images. A coated ink recordable substrate is also disclosed, which includes a substrate having at least one side and at least one side of the substrate has a coating layer derived from the above described coating composition.
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