# US 2014/0192121 A1 · Inkjet recording method and inkjet recording device

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- Number: US 2014/0192121 A1
- Document ID: US20140192121A1
- Status: Published application
- Kind: A1
- Application number: 14/152,431
- Filed: 2014-01-10
- Published: 2014-07-10
- Earliest claimed: 2013-01-10
- Assignees: Ricoh Company, Ltd.
- Inventors: Akiko Bannai; Hidefumi NAGASHIMA; Mariko KOJIMA; Michihiko NAMBA
- Web page: https://patentgrep.com/patent/US20140192121A1

## CPC

- 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)}
- B41J 2/2114: {Ejecting specialized liquids, e.g. transparent or processing liquids (B41J2/211 takes precedence)}
- B41M 7/0036: {using protective coatings or layers dried without curing}
- 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)

## Abstract

An inkjet recording method includes forming an image on a coated layer provided at least one side of the substrate of a recording medium with ink containing a colorant; and then applying a post-processing fluid comprising a resin to the image; wherein the application amount per unit area of the post-processing fluid to the image is controlled to be less than the application amount per unit area of the ink to form the image.

## Claims

### Claim 1

An inkjet recording method comprising:
forming an image on a coated layer provided at least one side of a substrate a recording medium with ink comprising a colorant; and then
applying a post-processing fluid comprising a resin to the image;
wherein an application amount per unit area of the post-processing fluid to the image is controlled to be less than an application amount per unit area of the ink to form the image.

### Claim 2 (depends on 1)

The inkjet recording method according to claim 1, wherein the application amount of the post-processing fluid ranges from 5% by volume to 30% by volume of the application amount of the ink to form the image.

### Claim 3 (depends on 1)

The inkjet recording method according to claim 1, wherein an application area of the post-processing fluid ranges from 5% to 30% of an application area of the ink applied to form the image.

### Claim 4 (depends on 1)

The inkjet recording method according to claim 1, wherein the resin comprises a resin particulate comprising a urethane resin and a vinyl polymer.

### Claim 5 (depends on 1)

The inkjet recording method according to claim 1, wherein the post-processing fluid comprises a polyethylene wax.

### Claim 6 (depends on 1)

The inkjet recording method according to claim 1, wherein the post-processing fluid comprises a polyether-modified polydimethyl siloxane.

### Claim 7 (depends on 1)

The inkjet recording method according to claim 1, further comprising: processing the coated layer with a pre-processing fluid prior to the step of forming the image with the ink.

### Claim 8 (depends on 7)

The inkjet recording method according to claim 7, wherein the pre-processing fluid comprises a hydrosoluble aliphatic organic acid.

### Claim 9 (depends on 1)

The inkjet recording method according to claim 1, further comprising heating the recording medium after the step of applying the post-processing liquid to the recording medium.

### Claim 10 (depends on 1)

An inkjet recording device comprises:
an ink container to accommodate ink;
a post-processing fluid to accommodate post-processing fluid;
a recording head to discharging ink; and
a post-processing fluid supplying device to supply droplets of the post-processing fluid,
wherein the inkjet recording device conducts the inkjet recording method of claim 1.