Claims
- 1. A porous ink jet recording element comprising a support having thereon an image-receiving layer comprising:(a) inorganic particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 500 nm; (b) colloidal particles having a mean particle size of from about 20 to about 500 nm; (c) water-insoluble, cationic, polymeric particles comprising at least about 20 mole percent of a cationic mordant moiety; and (d) inorganic particles encapsulated with an organic polymer having a Tg of less than about 100° C.
- 2. The recording element of claim 1 wherein said (a) inorganic particles are fumed silica or fumed alumina.
- 3. The recording element of claim 1 wherein said (b) colloidal particles are silica, alumina, titania, zirconia, yttria, or hydrated aluminum oxide.
- 4. The recording element of claim 1 wherein said (b) colloidal particles are organic particles.
- 5. The recording element of claim 1 wherein said (c) water-insoluble, cationic, polymeric particles are in the form of a latex which contains a polymer having a quaternary ammonium salt moiety.
- 6. The recording element of claim 1 wherein said (c) water-insoluble, cationic, polymeric particles comprises a mixture of latexes containing a polymer having a (vinylbenzyl)trimethyl quaternary ammonium salt moiety and a polymer having a (vinylbenzyl)dimethylbenzyl quaternary ammonium salt moiety.
- 7. The recording element of claim 1 wherein said (c) water-insoluble, cationic, polymeric particles have a mean particle size of from about 10 to about 500 nm.
- 8. The recording element of claim 1 wherein said (d) inorganic particles encapsulated with an organic polymer have a mean particle size of from about 5 nm to about 1000 nm.
- 9. The recording element of claim 1 wherein the Tg of said organic polymer used to make said encapsulated (d) particles is from about 50° C. to about 65° C.
- 10. The recording element of claim 1 wherein said organic polymer used to make said encapsulated (d) particles is derived from a cationic, anionic or nonionic monomer.
- 11. The recording element of claim 10 wherein said monomer contains a quaternary ammonium, pyridinium, imidazolium, sulfonate, carboxylate or phosphonate functionality.
- 12. The recording element of claim 1 wherein said organic polymer used to make said encapsulated (d) particles is derived from an acrylate- or styrene-containing monomer.
- 13. The recording element of claim 1 wherein said (d) inorganic particles are encapsulated by polymerizing a monomer in the presence of said inorganic particles to form said organic polymer.
- 14. The recording element of claim 1 wherein said (d) 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.
- 15. The recording element of claim 1 wherein said (d) inorganic particles are encapsulated with said organic polymer by adsorption of said organic polymer onto the surface of said inorganic particles.
- 16. The recording element of claim 1 wherein said (d) inorganic particles are encapsulated with said organic polymer by chemical bond formation between said inorganic particles and said organic polymer.
- 17. The recording element of claim 1 wherein the weight ratio of said inorganic particles to said organic polymer in said (d) particles is from about 20 to about 0.2.
- 18. The recording element of claim 1 wherein said (a) inorganic particles are present in an amount of from about 10 to about 50 weight % of said image-receiving layer, said (b) colloidal particles are present in an amount of from about 50 to about 80 weight % of said image-receiving layer, said (c) water-insoluble, cationic, polymeric particles are present in an amount of from about 5 to about 30 weight % of said image-receiving layer; and said (d) inorganic particles encapsulated with an organic polymer are present in an amount of from about 2 to about 50 weight % of said image-receiving layer.
- 19. The recording element of claim 1 wherein a base layer comprising at least about 50% by weight of inorganic particles is coated between said support and said image-receiving layer.
- 20. The recording element of claim 1 wherein said image-receiving layer also contains a binder in an amount of from about 5 to about 20 weight %.
CROSS REFERENCE TO RELATED APPLICATIONS
Reference is made to commonly assigned, U.S. patent applications and U.S. Patents:
U.S. Pat. No, 6,447,111 by Gallo et al., granted Sep. 10, 2002 herewith entitled “Ink Jet Printing Method”;
Ser. No. 09/944,618 by Sadasivan et al., filed Aug. 31, 2001 herewith entitled “Ink Jet Recording Element”; U.S. Pat. No. 6,443,570 by Chu et al., granted Sep. 3, 2002 herewith entitled “Ink Jet Printing Method”;
Ser. No. 09/943,952 by Sadasivan et al., filed Aug. 31, 2001 herewith entitled “Ink Jet Recording Element”; U.S. Pat. No. 6,447,110 by Chu et al., granted Sep. 10, 2002 herewith entitled “Ink Jet Printing Method”;
Ser. No. 09/943,957 by Sadasivan et al., filed Aug. 31, 2001 herewith entitled “Ink Jet Recording Element”; Ser. No. 09/945,035 by Gallo et al., filed Aug. 31, 2001 herewith entitled “Ink Jet Printing Method”; Ser. No. 09/944,971 by Sadasivan et al., filed Aug. 31, 2001 herewith entitled “Ink Jet Recording Element”; and U.S. Pat. No. 6,431,701 by Gallo et al., granted Aug. 13, 2002 herewith entitled “Ink Jet Printing Method”.
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