Recording medium for ink-jet printing

Claim 2

A recording medium for ink-jet printing consisting essentially of a preformed support material upon which there has been deposited a pigment free mixture consisting essentially of a water-soluble metal salt with the ion valence of the metal thereof being 2 to 4 and a cationic organic material, wherein the content of said water-soluble metal salt on the preformed support material is in the range of 0.4 g/m 2 to 3.0 g/m 2 , wherein said cationic organic material is selected from the group consisting of salts of alkylamines, quaternary ammonium salts and polyamines, wherein the content of said selected salt of alkylamines on the preformed support material is in the range of 0.2 g/m 2 to 5.0 g/m 2 , wherein the content of said selected quaternary ammonium salt on the preformed support material is in the range of 0.2 g/m 2 to 5.0 g/m 2 , wherein the content of said selected polyamines on the preformed support material is in the range of 0.2 g/m 2 to 5.0 g/m 2 .

Claim 3

A recording medium for ink-jet printing as claimed in claim 1, wherein said water-soluble metal salt is selected from the group consisting of salts with the cations thereof being 2-valence calcium cation, 2-valence zinc cation, 3-valence indium cation, 3-valence aluminum cation, 2-valence magnesium cation and 4-valence tin cation.

Claim 4

A recording medium for ink-jet printing consisting essentially of a preformed support material upon which there has been deposited a pigment free mixture consisting essentially of a water-soluble metal salt with the ion valvence of the metal thereof being 2 to 4 and a cationic organic material, wherein the content of said water-soluble metal salt on the preformed support materail is in the range of 0.4 g/m 2 to 3.0 g/m 2 , wherein said cationic organic material is a salt of alkylamine selected from the group consisting of decylammonium acetate, undecylammonium acetate, dodecylammonium acetate, tridecylammonium acetate, tetradecylammonium acetate, pentadecylammonium acetate, hexadecylammonium acetate, heptadecylammonium acetate, octadecylammonium acetate, nonadecylammonium acetate, eicodesylammonium acetate, decylammonium chloride, undecylammonium chloride, dodecylammonium chloride, tridecylammonium chloride, tetradecylammonium chloride, pentadecylammonium chloride, hexadecylammonium chloride, heptadecylammonium chloride, octadecylammonium chloride, nonadecylammonium chloride and eicosylammonium chloride, wherein the content of said salt of alkylamines on the performed support material is in the range of 0.2 g/m 2 to 5.0 g/m 2 .

Claim 5

A recording medium for ink-jet printing consisting essentially of a preformed support material upon which there has been deposited a pigment free mixture consisting essentially of a water-soluble metal salt with the ion valvence of the metal thereof being 2 to 4 and a cationic organic material, wherein the content of said water-soluble metal salt on the preformed support materail is in the range of 0.4 g/m 2 to 3.0 g/m 2 , wherein said cationic organic material is a salt of alkylamine selected from the group consisting of decylammonium acetate, undecylammonium acetate, dodecylammonium acetate, tridecylammonium acetate, tetradecylammonium acetate, pentadecylammonium acetate, hexadecylammonium acetate, heptadecylammonium acetate, octadecylammonium acetate, nonadecylammonium acetate, eicodesylammonium acetate, decylammonium chloride, undecylammonium chloride, dodecylammonium chloride, tridecylammonium chloride, tetradecylammonium chloride, pentadecylammonium chloride, hexadecylammonium chloride, heptadecylammonium chloride, octadecylammonium chloride, nonadecylammonium chloride and eicosylammonium chloride, wherein the content of said salt of alkylamines on the performed support material is in the range of 0.2 g/m 2 to 5.0 g/m 2 .

Claim 6

A recording medium for ink-jet printing, consisting essentially of a preformed support material upon which there has been deposited a pigment free mixture consisting essentially of a water-soluble metal salt with the ion valence of the metal thereof being 2 to 4 and a cationic organic material, wherein the content of said water-soluble metal salt on the preformed support material is in the range of 0.4 g/m 2 to 3.0 g/m 2 , wherein said cationic organic material is a quaternary ammonium salt selected from the group consisting of laurylthrmethylamonium bromide, lauryltrimethylammonium chloride, cetyltrimethylammonium bromide, cetyltrimethylammonium chloride, octaisoquinolinuium bromide, octaisoquinolinium chloride, hexadecyltrimethylammonium bromide, and hexadecyltrimethylammonium chloride, wherein the content of said selected quanternary ammonium salt on the preformed support material is in the range of 0.2 g/m 2 to 5.0 g/m 2 .

Claim 7

A recording medium for ink-jet printing, consisting essentially of a preformed support material upon which there has been deposited a pigment free mixture consisting essentially of a water-soluble metal salt with the ion valence of the metal thereof being 2 to 4 and a cationic organic material, wherein the content of said water-soluble metal salt on the preformed support material is in the range of 0.4 g/m 2 to 3.0 g/m 2 , wherein said cationic organic material is a quaternary ammonium salt selected from the group consisting of laurylthrmethylamonium bromide, lauryltrimethylammonium chloride, cetyltrimethylammonium bromide, cetyltrimethylammonium chloride, octaisoquinolinuium bromide, octaisoquinolinium chloride, hexadecyltrimethylammonium bromide, and hexadecyltrimethylammonium chloride, wherein the content of said selected quanternary ammonium salt on the preformed support material is in the range of 0.2 g/m 2 to 5.0 g/m 2 .

Claim 8

A recording medium for ink-jet printing consisting essentialy of a preformed support material upon which there has been deposited a pigment free mixture consisting essentially of a water-soluble metal salt with the ion valence of the metal thereof being 2 to 4 and a cationic organic material, wherein the content of said water-soluble metal salt on the preformed support material is in the range of 0.4 g/m 2 to 3.0 g/m 2 , wherein said cationic organic material is a polyamine selected from the group consisting of polyamide polyamine, polyoxyethylene alkylamine, polyethyamine epichlorohydrin, polydimethylaminoethyl methacrylate, and polyalkylammonium, and wherein the content of said polyamine on the preformed support material is in the range of 0.2 g/m 2 to 5.0 g/m 2 .

Claim 9

A recording medium for ink-jet printing consisting essentialy of a preformed support material upon which there has been deposited a pigment free mixture consisting essentially of a water-soluble metal salt with the ion valence of the metal thereof being 2 to 4 and a cationic organic material, wherein the content of said water-soluble metal salt on the preformed support material is in the range of 0.4 g/m 2 to 3.0 g/m 2 , wherein said cationic organic material is a polyamine selected from the group consisting of polyamide polyamine, polyoxyethylene alkylamine, polyethyamine epichlorohydrin, polydimethylaminoethyl methacrylate, and polyalkylammonium, and wherein the content of said polyamine on the preformed support material is in the range of 0.2 g/m 2 to 5.0 g/m 2 .