# US 8,783,842 B2 · Methods and systems for printing on non-porous media

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- Number: US 8,783,842 B2
- Document ID: US8783842B2
- Status: Granted
- Kind: B2
- Application number: 13/617,497
- Filed: 2012-09-14
- Published: 2014-03-20
- Granted: 2014-07-22
- Earliest claimed: 2012-09-14
- Assignees: Hewlett-Packard Development Company, L.P.
- Applicants: David Michael Ingle; Chandrasekhar Nadimpalli; Phillip C. Cagle; Britt Marie Christenson; Howard Doumaux; Marc Rossinyol Casals
- Inventors: David Michael Ingle; Chandrasekhar Nadimpalli; Phillip C. Cagle; Britt Marie Christenson; Howard Doumaux; Marc Rossinyol Casals
- Web page: https://patentgrep.com/patent/US8783842B2

## CPC

- B41J 2/21: for multi-colour printing
- B41J 2/2114: {Ejecting specialized liquids, e.g. transparent or processing liquids (B41J2/211 takes precedence)}
- B41J 11/0015: {for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114)}
- B41M 5/0017: {Application of ink-fixing material, e.g. mordant, precipitating agent, on the substrate prior to printing, e.g. by ink-jet printing, coating or spraying}
- B41J 2/2107: {characterised by the ink properties (supplying ink in a solid state B41J2/17593)}
- B41M 5/0047: {by ink-jet printing}
- B41M 5/0064: {on plastics, horn, rubber, or other organic polymers}
- B41M 5/007: {on glass, ceramic, tiles, concrete, stones, etc.}
- C09D 11/54: Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41M: PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, (correction of typographical errors B41J; processes for applying transfer pictures or the like B44C1/16; fluid media for correction of typographical errors by coating C09D10/00; printing textiles D06P)
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)

## Abstract

The present disclosure provides a method of inkjet printing on non-porous media including inkjet printing a fixer fluid on the non-porous media and inkjet printing an ink onto the non-porous media, where the printing of the ink is within 125 milliseconds of the printing of the fixer fluid. Thus, the ink is printed to contact the fixer fluid within 125 milliseconds of each being printed. In one example, the fixer fluid can include a liquid vehicle including water and co-solvent having a boiling point from 160° C. to 250° C., a surfactant, and a cationic polymer; and the ink can comprise an anionic pigment dispersion.

## Claims

### Claim 1

A method of inkjet printing on non-porous media, comprising:
inkjet printing a fixer fluid on the non-porous media, the fixer fluid comprising:
a liquid vehicle including water and co-solvent having a boiling point from 160° C. to 250° C.,
a surfactant, and
a cationic polymer; and
inkjet printing an ink onto the non-porous media, the ink comprising an anionic pigment dispersion;
wherein ink is printed at a flux of 1 to 14 mL/hour per inch2 of swath area to contact the fixer fluid within 125 milliseconds.

### Claim 2 (depends on 1)

The method of claim 1, wherein the fixer fluid is underprinted with respect to the ink.

### Claim 3 (depends on 1)

The method of claim 1, wherein the printing of the ink is within 50 milliseconds of the printing of the fixer fluid.

### Claim 4 (depends on 1)

The method of claim 1, wherein the printing of the ink is within 25 milliseconds of the printing of the fixer fluid.

### Claim 5 (depends on 1)

The method of claim 1, wherein the cationic polymer is present in the fixer fluid in an amount of 0.1 wt % to 25 wt % and the surfactant is present in the fixer fluid in an amount of 0.1 wt % to 10 wt %.

### Claim 6 (depends on 1)

The method of claim 1, wherein the anionic pigment dispersion comprises a self-dispersed pigment, a pigment dispersed with an anionic surfactant, or a pigment dispersed with an anionic polymer.

### Claim 7 (depends on 1)

The method of claim 1, wherein the fixer fluid and the ink is printed at a ratio of 6:100 to 30:100 by weight.

### Claim 8 (depends on 1)

The method of claim 1, wherein the printing of the fixer fluid is selectively printed on the non-porous media in locations that also are printed with the ink.

### Claim 9 (depends on 1)

The method of claim 1, wherein the co-solvent is present in the fixer fluid in an amount of 1 wt % to 40 wt %, and the fixer fluid does not include more than 5 wt % volatile co-solvent and does not include more than 3 wt % non-volatile co-solvent.

### Claim 10 (depends on 1)

The method of claim 1, wherein the printing of the fixer fluid and the ink are at a temperature of less than 30° C.

### Claim 11

A printing system for non-porous media, comprising:
a fixer fluid, the fixer fluid comprising:
a liquid vehicle including water and co-solvent having a boiling point from 160° C. to 250° C., the co-solvent present in the fixer fluid in an amount of 1 wt % to 40 wt %;
a surfactant, the surfactant present in the fixer fluid in an amount of 0.1 wt % to 10 wt %; and
a cationic polymer, the cationic polymer present in the fixer fluid in an amount of 0.1 wt % to 25 wt %;
an ink, the ink comprising an anionic pigment dispersion and a latex; and
a printer configured to overprint or underprint the fixer fluid within 125 milliseconds of printing the ink at a flux of 1 to 14 mL/hour per inch2 of swath area, and wherein the printing is configured to print at a temperature of less than 55° C.

### Claim 12 (depends on 11)

The printing system of claim 11, wherein the printer is configured to print the fixer fluid within 25 milliseconds of printing the ink.

### Claim 13 (depends on 11)

The printing system of claim 11, wherein the liquid vehicle contains at least one co-solvent selected from the group of: propylene glycol n-butyl ether; ethylene glycol n-butyl ether; 2,3-butanediol; 1,2-propanediol; propylene glycol; dipropylene glycol methyl ether; 1,2-butanediol; diethylene glycol methyl ether; ethylene glycol; 2-methyl-2,4-pentanediol (hexylene glycol); 2,4-pentanediol; n-methylpyrollidinone; n-ethylpyrollidinone; diethylene glycol ethyl ether; 1,3-butanediol; 3,5-dimethyl-3-hexyne-2,5-diol; 1,2-pentanediol; ethylene glycol n-hexyl ether; 2,2-dimethyl-1,3-propanediol; dipropylene glycol t-butyl ether; 2-methyl-1,3-propanediol (MPdiol); dipropylene glycol n-propyl ether; 1,3-propanediol; 2,5-dimethyl-2,5 hexanediol; 2,5-hexanediol; 1,2-hexanediol; 1,4-butanediol; dipropylene glycol n-butyl ether; diethylene glycol n-butyl ether; 2,2,4-trimethyl-1,3-pentanediol (TMPD glycol); 1,5-pentanediol; 2-ethyl-1,3-hexanediol; tripropylene glycol methyl ether; propylene glycol phenyl ether; ethylene glycol phenyl ether; di(ethylene glycol); di(propylene glycol); 2-pyrollidinone; triethylene glycol methyl ether; and mixtures thereof and wherein the cationic polymer is selected from the group of quaternized polyamines, dicyandiamide polycations, diallyldimethyl ammonium chloride copolymers, quaternized dimethylaminoethyl(meth)acrylate polymers, quaternized vinylimidizol polymers, alkyl guanidine polymers, alkoxylated polyethylene imines, and mixtures thereof.

### Claim 14 (depends on 11)

The printing system of claim 11, wherein the fixer fluid comprises multiple co-solvents having a boiling point from 160° C. to 250° C. present in a combined amount of 5 wt % to 30 wt %, and the cationic polymer is present in the fixer fluid at a concentration of 1 wt % to 5 wt % and has a cationic charge density higher than 1000 microequivalents per gram cationic functionality.

### Claim 15 (depends on 11)

The printing system of claim 11, wherein the anionic pigment dispersion comprises a self-dispersed pigment, a pigment dispersed with an anionic surfactant, or a pigment dispersed with an anionic polymer; and the latex includes polymerized monomers selected from the group of: styrene, p-methyl styrene, α-methyl styrene, methyl methacrylate, hexyl acrylate, hexyl methacrylate, butyl acrylate, butyl methacrylate, ethyl acrylate, ethyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, propyl acrylate, propyl methacrylate, octadecyl acrylate, octadecyl methacrylate, stearyl methacrylate, vinylbenzyl chloride, isobornyl acrylate, tetrahydrofurfuryl acrylate, 2-phenoxyethyl methacrylate, benzyl methacrylate, benzyl acrylate, ethoxylated nonyl phenol methacrylate, ethoxylated behenyl methacrylate, polypropyleneglycol monoacrylate, isobornyl methacrylate, cyclohexyl methacrylate, cyclohexyl acrylate, t-butyl methacrylate, n-octyl methacrylate, lauryl methacrylate, tridecyl methacrylate, alkoxylated tetrahydrofurfuryl acrylate, isodecyl acrylate, isobornyl methacrylate, isobornyl acrylate, dimethyl maleate, dioctyl maleate, acetoacetoxyethyl methacrylate, diacetone acrylamide, N-vinyl imidazole, N-vinylcarbazole, N-vinyl-caprolactam, combinations thereof, derivatives thereof, and mixtures thereof.

### Claim 16 (depends on 11)

The printing system of claim 11, wherein the printer is configured to overprint or underprint the fixer fluid at a fixer fluid to ink ratio of 6:100 to 30:100 by weight.

### Claim 17 (depends on 11)

The printing system of claim 11, wherein the printer is configured to overprint or underprint the fixer fluid on the non-porous media in locations that also are printed with the ink.