Claims
- 1. An ink jet recording material comprising a support material and at least one ink receiving layer formed on at least one surface of the support material and comprising a light fastness-enhancing agent for ink images received on the ink receiving layer, and a plurality of composite particles prepared from an inorganic pigment and a cationic polymeric material,wherein(1) the light fastness-enhancing agent comprises at least one member selected from the group consisting of hydroquinone-β-D-glucoside, salts of pyrocatechol-3,5-disulfonic acid and salts of p-hydroxybenzenesulfonic acid; (2) the inorganic pigment comprises a plurality of secondary particles having an average particle size of 10 to 500 nm, each secondary particle comprising a plurality of primary particles having an average primary particle size of 3 to 40 nm, and agglomerated with each other to form secondary particle; (3) the cationic polymeric material has a molecular weight of 100,000 or more; and (4) the composite particles of the inorganic pigment particles and the cationic polymeric material are those prepared by mixing an agueous dispersion of inorganic pigment particles with a cationic polymeric material, to cause the aqueous dispersion of the inorganic pigment particles to be coagulated with the cationic polymeric material, and subjecting the resultant coagulate of the inorganic pigment with the cationic polymeric material to pulverization, to form inorganic pigment-cationic polymeric material composite particles having an average composite particle size of 10 to 1,000 nm.
- 2. The ink jet recording material as claimed in claim 1, wherein the light fastness enhancing agent is present in an amount of 0.3 to 30% by mass based on the mass of the ink receiving layer.
- 3. The ink jet recording material as claimed in claim 2, wherein the amount of the light fastness-enhancing agent is 1 to 10% by mass based on the mass of the ink receiving layer.
- 4. The ink jet recording material as claimed in claim 1, wherein the salts of pyrocatechol-3,5-disulfonic acid and the salt of p-hydroxy-benzenesulfonic acid are sodium pyrocatechol-3,5-disulfonate and sodium p-hydroxy-benzenesulfonate, respectively.
- 5. The ink jet recording material as claimed in claim 1, wherein the inorganic pigment comprises at least one member selected from the group consisting of silica, alumina and alumiosilicate.
- 6. The ink jet recording material as claimed in claim 1, wherein the cationic polymeric material comprises at least one member selected from polydiallyldimethyl ammonium chloride, polyacrylamide, polydiallyamine-hdyrochlorate acid salt, polyvinylamine, polyalkylenepolyamine-dicyandiamide condensation product, and polymers and copolymers of secondary amine-epichlorohydrin.
- 7. The ink jet recording material as claimed in claim 1, wherein a ratio in mass of the inorganic pigment to the cationic polymeric material is 100:1 to 100:50.
- 8. The ink jet recording material as claimed in claim 7, wherein the ratio in mass of the inorganic pigment to the cationic material is in the range of from 100:2 to 100:30.
- 9. The ink jet recording material as claimed in claim 1, wherein the inorganic pigment-cationic polymeric material composite particles are present in an amount of 70 to 95% by mass in the ink receiving layer.
- 10. The ink jet recording material as claimed in claim 1, wherein in the inorganic pigment-cationic polymeric material composite particles contained in the ink receiving layer the cationic polymeric material is present in an amount of 0.01 to 10 g per m2 of the surface area of the recording material.
- 11. The ink jet recording material as claimed in claim 1, wherein the ink receiving layer is formed on the support material in such a manner that a layer containing the light fastness-enhancing agent and the inorganic pigment-cationic polymeric material composite particles is formed on a casting surface of a casting base, and then is brought into contact with a surface of the support material under pressure so as to transfer the cast layer to the support material surface, and the cast layer on the support material is separated from the casting surface of the casting base.
- 12. The ink jet recording material as claimed in claim 1, having a gloss of 20% or more determined at incident and reflection angles of 75 degrees in accordance with Japanese Industrial Standard P8142.
- 13. The ink jet recording material as claimed in claim 1, wherein the ink receiving layer further comprises at least one inorganic salt.
- 14. The ink jet recording material as claimed in claim 13, wherein the inorganic salt is selected from inorganic salts of di- or more valence metals.
- 15. The ink jet recording material as claimed in claim 13, wherein the inorganic salt is selected from the group consisting of inorganic magnesium salts and inorganic calcium salts.
- 16. The ink jet recording material as claimed in claim 1, wherein the ink receiving layer further comprises at least one member selected from the group consisting of salts of phosphoric acid and salts of nitric acid.
- 17. The ink jet recording material as claimed in claim 1, wherein the ink receiving layer further comprises at least one member selected from the group consisting of salts of phosphoric acid and slats of nitric acid.
Priority Claims (4)
Number |
Date |
Country |
Kind |
11-36846 |
Feb 1999 |
JP |
|
11-96030 |
Apr 1999 |
JP |
|
11-194084 |
Jul 1999 |
JP |
|
11-208508 |
Jul 1999 |
JP |
|
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of application Ser. No. 09/502,824, filed Feb. 11, 2000, now abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
5500668 |
Malhotra et al. |
Mar 1996 |
A |
20020115773 |
Katoh et al. |
Aug 2002 |
A1 |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
09/502824 |
Feb 2000 |
US |
Child |
10/307445 |
|
US |