Claims
- 1. An ink jet printing method comprising the steps of:I) providing an ink jet printer that is responsive to digital data signals; II) loading said printer with a porous ink jet recording element comprising a substrate having thereon a porous image-receiving layer comprising a) inorganic particles encapsulated with an organic polymer having a Tg of from 44° C. to less than about 100° C.; and b) particles having a mean particle size of up to about 5 μm; loading said printer with an ink jet ink composition; and printing on said image-receiving layer using said ink jet ink composition in response to said digital data signals wherein said (a) inorganic particles have a particle size of from about 5 nm to about 1000 nm.
- 2. The method of claim 1 wherein said (a) inorganic particles comprise metal oxides, hydrated metal oxides, boehmite, clay, calcined clay, calcium carbonate, aluminosilicates, zeolites or barium sulfate.
- 3. The method of claim 2 wherein said metal oxide is silica, alumina, zirconia or titania.
- 4. The method of claim 1 wherein said organic polymer is derived from a cationic, anionic or nonionic monomer.
- 5. The method of claim 4 wherein said monomer contains a quaternary ammonium, pyridinium, imidazolium, sulfonate, carboxylate or phosphonate functionality.
- 6. The method of claim 1 wherein said organic polymer is derived from an acrylate-containing monomer.
- 7. The method of claim 1 wherein said organic polymer is derived from a styrene-containing monomer.
- 8. The method of claim 1 wherein said inorganic particles are encapsulated by polymerizing a monomer in the presence of said inorganic particles to form said organic polymer.
- 9. The method of claim 1 wherein said inorganic particles are encapsulated with said organic polymer by:(a) modifying the surface of said inorganic particles with a silane-containing material; and (b) polymerizing a monomer to form said organic polymer.
- 10. The method of claim 1 wherein said inorganic particles are encapsulated with said organic polymer by adsorption of said organic polymer onto the surface of said inorganic particles.
- 11. The method of claim 1 wherein said inorganic particles are encapsulated with said organic polymer by chemical bond formation between said inorganic particles and said organic polymer.
- 12. The method of claim 1 wherein the weight ratio of said inorganic particles to said organic polymer is from about 0.2:1 to about 20:1.
- 13. The method of claim 1 wherein said image-receiving layer comprises at least about 50 wt. % of said (b) particles.
- 14. The method of claim 1 wherein said (b) particles are inorganic particles.
- 15. The method of claim 1 wherein said (b) particles are organic particles.
- 16. The method of claim 1 wherein said image-receiving layer comprises up to about 50 wt. % of said (a) encapsulated inorganic particles.
- 17. The method of claim 1 wherein said (b) particles have a particle size of from about 5 nm to about 1000 nm.
CROSS REFERENCE TO RELATED APPLICATIONS
Reference is made to commonly assigned, co-pending U.S. patent applications:
Ser. No. 09/943,957 by Sadasivan et al., filed of even date herewith entitled “Ink Jet Recording Element”;
Ser. No. 09/944,618 by Sadasivan et al., filed of even date herewith entitled “Ink Jet Recording Element”;
Ser. No. 09/944,619 by Chu et al., filed of even date herewith entitled “Ink Jet Printing Method”;
Ser. No. 09/943,952 by Sadasivan et al., filed of even date herewith entitled “Ink Jet Recording Element”;
Ser. No. 09/944,555 by Chu et al., filed of even date herewith entitled “Ink Jet Printing Method”;
Ser. No. 09/944,547 by Sadasivan et al., filed of even date herewith entitled “Ink Jet Recording Element”;
Ser. No. 09/945,088 by Gallo et al., filed of even date herewith entitled “Ink Jet Printing Method”;
Ser. No. 09/944,971 by Sadasivan et al., filed of even date herewith entitled “Ink Jet Recording Element”; and
Ser. No. 09/945,085 by Gallo et al., filed of even date herewith entitled “Ink Jet Printing Method”.
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