Claims
- 1. An ink jet printing method, comprising the steps of:A) providing an ink jet printer that is responsive to digital data signals; B) loading said printer with an ink jet recording element comprising a support having thereon a porous image-receiving layer comprising particles in a binder, said particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm, said image-receiving layer having been coated from an acidic aqueous dispersion, and said recording element containing a subbing layer between said support and said porous image-receiving layer, said subbing layer comprising a basic material which raised the surface pH of said image-receiving layer at least 2 pH units; C) loading said printer with an ink jet ink composition; and D) printing on said image-receiving layer using said ink jet ink composition in response to said digital data signals.
- 2. The method of claim 1 wherein said image-receiving layer being coated from an acidic aqueous dispersion having a pH below about 5.
- 3. The method of claim 1 wherein said image-receiving layer being coated from an acidic aqueous dispersion having a pH below about 4.
- 4. The method of claim 1 wherein said basic material is capable of raising the surface pH of said image-receiving layer at least above 4.
- 5. The method of claim 1 wherein said subbing layer comprises a mixture of a polymer and said basic material.
- 6. The method of claim 5 wherein said polymer is gelatin, poly(vinyl alcohol) or an acrylic latex polymer.
- 7. The method of claim 5 wherein said basic material comprises sodium hydroxide or triethanolamine.
- 8. The method of claim 1 wherein said subbing layer comprises from about 10-30% by weight of said basic material.
- 9. The method of claim 1 wherein the weight ratio of said binder to said particles in said image-receiving layer is from about 1:20 to about 1:5.
- 10. The method of claim 1 wherein said binder is a hydrophilic polymer.
- 11. The method of claim 10 wherein said hydrophilic polymer is poly(vinyl alcohol), hydroxypropyl cellulose, hydroxypropyl methyl cellulose, gelatin or a poly(alkylene oxide).
- 12. The method of claim 1 wherein said polymeric binder is poly(vinyl alcohol).
- 13. The method of claim 1 wherein said particles are metallic oxides.
- 14. The method of claim 1 wherein said particles are alumina, boehmite or cationically-modified silica.
- 15. The method of claim 1 wherein said image-receiving layer also contains a mordant.
- 16. The method of claim 1 wherein said support is polyethylene-coated paper.
CROSS REFERENCE TO RELATED APPLICATION
Reference is made to commonly assigned, co-pending U.S. patent application Ser. No. 09/799,933 by Shaw-Klein et al., filed of even date herewith entitled “Ink Jet Recording Element”.
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