# US 8,541,063 B2 · Undercoat solution, ink-jet recording method and ink-jet recording device

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- Number: US 8,541,063 B2
- Document ID: US8541063B2
- Status: Granted
- Kind: B2
- Application number: 12/026,208
- Filed: 2008-02-05
- Published: 2008-08-07
- Granted: 2013-09-24
- Earliest claimed: 2007-02-06
- Assignees: FUJIFILM Corporation
- Applicants: Hiroshi Kawakami; Toshiyuki Makuta; Yusuke Nakazawa
- Inventors: Hiroshi Kawakami; Toshiyuki Makuta; Yusuke Nakazawa
- Web page: https://patentgrep.com/patent/US8541063B2

## CPC

- B41M 5/0011: {Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating (after-treatment of prints B41M7/00; printers for treating or overcoating copy materials before, during or after printing B41J11/0015)}
- B41J 11/00214: {using UV radiation}
- 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}
- B41M 7/0081: {using electromagnetic radiation or waves, e.g. ultraviolet radiation, electron beams}
- C09D 11/101: Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
- 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
- B41M 5/0047: {by ink-jet printing}
- B41M 5/0058: {on metals and oxidised metal surfaces}
- B41M 5/0064: {on plastics, horn, rubber, or other organic polymers}
- B41M 5/007: {on glass, ceramic, tiles, concrete, stones, etc.}
- B41M 5/0076: {on wooden surfaces, leather, linoleum, skin, or flowers}
- 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)
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- 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 invention provides an undercoat solution including a radical-polymerizable compound having a phosphoric acid group, an ink-jet recording method including applying an undercoat solution containing a radical-polymerizable compound having a phosphoric acid group; partially curing the applied undercoat solution; and discharging an ink, which is curable by irradiation with an active energy ray, onto the partially cured undercoat solution to record an image, and an ink-jet recording device including an undercoat solution application unit which applies an undercoat solution containing a radical-polymerizable compound having a phosphoric acid group; an undercoat solution curing unit which partially cures the undercoat solution; and an image recording unit which discharges an ink onto the partially cured undercoat solution to record an image.

## Claims

### Claim 1

An undercoat solution comprising an acrylamide polymer that is oil-soluble and water-insoluble and a radical-polymerizable compound having a phosphoric acid group that is applied in advance onto a recording medium prior to discharging an ink onto the recording medium to record an image, wherein the radical-polymerizable compound having a phosphoric acid group is selected from the group consisting of a phosphoric acid group-containing radical-polymerizable compound in which all of the hydroxyl groups of phosphoric acid have been esterified, and a bifunctional or higher functional phosphoric acid group-containing radical-polymerizable compound.

### Claim 2 (depends on 1)

The undercoat solution according to claim 1, further comprising a radical polymerization initiator.

### Claim 3

An ink-jet recording method, comprising:
applying, onto a recording medium, an undercoat solution;
partially curing the applied undercoat solution; and
discharging an ink, which is curable by irradiation with an active energy ray, onto the partially cured undercoat solution to record an image,
wherein the undercoat solution comprises an acrylamide polymer that is oil-soluble and water-insoluble and a radical-polymerizable compound having a phosphoric acid group that is applied in advance onto the recording medium prior to discharging the ink onto the recording medium to record the image, the radical-polymerizable compound having a phosphoric acid group selected from the group consisting of a phosphoric acid group-containing radical-polymerizable compound in which all of the hydroxyl groups of phosphoric acid have been esterified, and a bifunctional or higher functional phosphoric acid group-containing radical-polymerizable compound.

### Claim 4 (depends on 3)

The ink-jet recording method according to claim 3, wherein the undercoat solution is partially cured by irradiating with an active energy ray.

### Claim 5 (depends on 3)

The ink-jet recording method according to claim 3, wherein the undercoat solution further contains a radical polymerization initiator.

### Claim 6 (depends on 3)

The ink-jet recording method according to claim 3, wherein in the discharging of the ink, an ink set containing multiple colored inks is used to perform the discharging, and at least one of the discharged colored inks is partially cured.

### Claim 7 (depends on 3)

The ink-jet recording method according to claim 3, wherein curing of the undercoat solution and the discharged ink is carried out to fix the recorded image onto the recording medium.

### Claim 8 (depends on 3)

The ink-jet recording method according to claim 3, wherein the curing sensitivity of the ink is equal to or greater than the curing sensitivity of the undercoat solution.

### Claim 9

An ink-jet recording method, comprising:
applying, onto a recording medium, an undercoat solution;
partially curing the applied undercoat solution; and
discharging an ink, which can be cured by irradiation with an active energy ray, onto the partially cured undercoat solution to thereby record an image,
wherein the undercoat solution comprises an acrylamide polymer that is oil-soluble and water-insoluble and a radical-polymerizable compound having a phosphoric acid group that is applied in advance onto the recording medium prior to discharging the ink onto the recording medium to record the image, the radical-polymerizable compound having a phosphoric acid group selected from the group consisting of a phosphoric acid group-containing radical-polymerizable compound in which all of the hydroxyl groups of phosphoric acid have been esterified, and a bifunctional or higher functional phosphoric acid group-containing radical-polymerizable compound.

### Claim 10 (depends on 9)

The ink-jet recording method according to claim 9, wherein the undercoat solution is partially cured by irradiation with an active energy ray.

### Claim 11 (depends on 9)

The ink-jet recording method according to claim 9, wherein the undercoat solution further contains a radical polymerization initiator.

### Claim 12 (depends on 9)

The ink-jet recording method according to claim 9, wherein in the discharging of the ink, an ink set containing multiple colored inks is used to perform the discharging, and at least one of the discharged colored inks is partially cured.

### Claim 13 (depends on 9)

The ink-jet recording method according to claim 9, wherein curing of the undercoat solution and the discharged ink is carried out to fix the recorded image onto the recording medium.

### Claim 14 (depends on 9)

The ink-jet recording method according to claim 9, wherein the curing sensitivity of the ink is equal to or greater than the curing sensitivity of the undercoat solution.