# US 10,372,053 B2 · Recorded material and image forming method

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- Number: US 10,372,053 B2
- Document ID: US10372053B2
- Status: Granted
- Kind: B2
- Application number: 15/386,645
- Filed: 2016-12-21
- Published: 2017-04-13
- Granted: 2019-08-06
- Earliest claimed: 2015-05-27
- Assignees: Canon Kabushiki Kaisha
- Applicants: Canon Kabushiki Kaisha
- Inventors: Toru Kabashima; Shuhei Takahashi; Shuichi Tamura; Shinichirou Yoshikawa; Toshihiko Sugimoto; Erito Machida; Junji Ito; Jiro Ishizuka; Yuji Nakayama; Koji Amemiya
- Web page: https://patentgrep.com/patent/US10372053B2

## CPC

- G03G 9/0825: {characterised by their structure; characterised by non-homogenuous distribution of components (microcapsular toners G03G9/093)}
- B32B 3/10: characterised by a discontinuous layer, i.e. formed of separate pieces of material
- G03G 9/0819: {characterised by the dimensions of the particles}
- G03G 9/0827: {characterised by their shape, e.g. degree of sphericity}
- G03G 9/08722: {Polyvinylalcohols; Polyallylalcohols; Polyvinylethers; Polyvinylaldehydes; Polyvinylketones; Polyvinylketals}
- G03G 9/0918: {Phthalocyanine dyes}
- G03G 9/122: {characterised by the colouring agents}
- G03G 9/125: characterised by the liquid
- G03G 9/13: characterised by polymer components
- G03G 9/132: {obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds}
- G03G 9/135: characterised by stabiliser or charge-controlling agents
- G03G 9/1355: {Ionic, organic compounds}
- G03G 13/10: using a liquid developer {, e.g. liquid suspension}
- G03G 15/08: using a solid developer, e.g. powder developer
- G03G 2215/0129: horizontal medium transport path at the secondary transfer
- Y10T 428/24802: Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T 428/24901: including coloring matter
- G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Provided is a recorded material in which a recording liquid is satisfactorily fixed to a recording medium and which has a sufficient chroma and a sufficient lightness, in high-speed printing. The recorded material comprises a recording medium, a toner particle including colorant particles, and a cured resin including the toner particle and fixing a toner image formed of the toner particle onto the recording medium, wherein an average circularity of the toner particle is not less than 0.70 and not more than 0.99, the toner particle is not exposed from a surface of the cured resin, and an average distance between wall surfaces of the adjacent toner particles is not less than 10 nm and less than 125 nm.

## Claims

### Claim 1

A recorded material, comprising:
a recording medium; and
a fixed toner image on the recording medium, the fixed toner image comprising a cured resin and a toner particle in the cured resin, the toner particle including colorant particles, wherein
the cured resin is formed from an energy-curable liquid comprising a cationic polymerizable monomer included in a carrier liquid, the cationic polymerizable monomer being at least one compound selected from the group consisting of dodecyl vinyl ether, dipropylene glycol divinyl ether, dicyclopentadiene vinyl ether, cyclohexane dimethanol divinyl ether, tricyclodecane vinyl ether, trimethylolpropane trivinyl ether, 2-ethyl-1,3-hexanediol divinyl ether, 2,4-diethyl-1,5-pentanediol divinyl ether, 2-butyl-2-ethyl-1,3-propanediol divinyl ether, neopentyl glycol divinyl ether, pentaerythritol tetra vinyl ether, and 1,2-decanediol divinyl ether,
an average circularity of the toner particle is 0.70 to 0.99 and the toner particle is not exposed from a surface of the cured resin,
a ratio (T/D×100) between the toner particle (T) and the carrier energy-curable liquid (D) is 20 to 80 on a mass scale,
a volume-average particle diameter of the toner particle is not less than 0.5 μm and less than 1 μm, and
an average distance between wall surfaces of adjacent toner particles in the cured resin is not less than 75 nm and less than 125 nm.

### Claim 2 (depends on 1)

The recorded material according to claim 1, wherein each of the colorant particles is a pigment.

### Claim 3 (depends on 1)

An image forming method to obtain the recorded material according to claim 1, comprising:
an electrostatic latent image forming step of forming an electrostatic latent image on an image carrier;
a developing step of developing the electrostatic latent image using a recording liquid including the energy-curable liquid and the toner particle including colorant particles, to form a toner image formed of the toner particle including colorant particles on the image carrier;
a transfer step of transferring the toner image formed of the toner particle including colorant particles and the energy-curable liquid from the image carrier onto the recording medium; and
a fixing step of obtaining the recorded material by fixing the toner image onto the recording medium without applying a pressure thereto, by giving an energy to the energy-curable liquid to cure the energy-curable liquid to form the cured resin.

### Claim 4 (depends on 3)

The image forming method according to claim 3, wherein the energy-curable liquid is a UV-curable liquid, and
the fixing step is a step of obtaining the recorded material by fixing the toner image onto the recording medium by irradiating the energy-curable liquid with UV light to cure the energy-curable liquid to form the cured resin without applying a pressure thereto.

### Claim 5 (depends on 3)

The image forming method according to claim 3, wherein each of the colorant particles is a pigment.