Ink jet recording sheet having a bicomponent cationic recording surface
AssigneeThe Mead Corporation
InventorsMichael J. Cousin, Larry O. Hill, Rhonda G. Justice
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Abstract
An ink jet recording sheet having a recording surface which includes a combination of a water soluble polyvalent metal salt and a cationic polymer, said polymer having cationic groups which are available in the recording surface for insolubilizing an anionic dye.
Claims30
A recording sheet useful in ink jet recording comprising a substrate having a recording surface containing a cationic polymer and a water soluble polyvalent metal salt, said polymer providing said surface with cationic groups for ionically interacting with an anionic dye and insolubilizing it;
- wherein at least 3 mol % of the monomeric units making up said polymer are derived from cationic monomers and said salt is a salt of a metal from Group II, Group III, or the Transition Metals of the Periodic Table of Elements.
In a method for ink jet recording which comprises jetting a stream of ink droplets onto the surface of a substrate, the improvement which comprises said substrate having on at least one of the major surfaces thereof a recording surface including a water soluble polyvalent metal salt and a cationic polymer, said polymer providing said surface with cationic groups for ionically interacting with an anionic dye and insolubilizing it;
- wherein at least 3 mol % of the monomeric units making up said polymer are derived from cationic monomers and said salt is a salt of a metal from Group II, Group III, or the Transition Metals of the Periodic Table of Elements.
Dependencies are inferred from the claim text.