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Transparent toner, image forming method and toner set

A technology of transparent toner and toner, applied in the direction of electric recording process applying charge pattern, equipment for applying electric recording process of charge pattern, developer, etc.

Active Publication Date: 2017-12-01
FUJIFILM BUSINESS INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As conventional transparent toners, for example, those described in JP-A-10-301339 (Patent Document 1), JP-T-2010-533318 (Patent Document 2), JP-A-2002-236396 ( Patent Document 3), JP-A-2005-99122 (Patent Document 4) and JP-A-2005-274614 (Patent Document 5), but they mostly provide images with uniform gloss, and thus obtained Photo image quality

Method used

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  • Transparent toner, image forming method and toner set
  • Transparent toner, image forming method and toner set
  • Transparent toner, image forming method and toner set

Examples

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specific example

[0243] Specific examples thereof include: a dipping method in which a carrier core material is immersed in a coating film-forming solution; a spraying method in which a coating film-forming solution is sprayed on the surface of a carrier core material; and a coating film-forming solution is mixed with flowing air. And the kneading coater method in which the carrier core material in a floating state is mixed and the solvent is removed. Among them, the mixer coater method is preferable in the present exemplary embodiment.

[0244]The solvent used for the coating film forming solution is not particularly limited as long as it can dissolve only the resin as the matrix resin. The solvent is selected from known solvents, examples of which include: aromatic hydrocarbons such as toluene and xylene; ketones such as acetone and methyl ethyl ketone; and ethers such as tetrahydrofuran and dioxane. In the case where the resin particles are dispersed in the coating film, since the resin pa...

Embodiment 1

[0338]

[0339]

[0340] ・Amorphous polyester resin dispersion (DA-A1): 160 parts by weight

[0341] ・Amorphous polyester resin dispersion (DA-A2): 160 parts by weight

[0342] Dowfax 2A-1 (sodium alkyl diphenyl ether disulfonate, manufactured by Dow Chemical Co.): 1.25 parts by weight

[0343] The above-mentioned ingredients were placed in a beaker, and the pH was adjusted to 4.0 using a 1.0% by weight aqueous solution of nitric acid while stirring the mixture using a magnetic stirrer at such a speed that air bubbles were not introduced thereinto, thereby obtaining an amorphous polyester resin for additional use Particle dispersion (DA-A1T-1).

[0344]

[0345] · Aluminum sulfate powder (manufactured by Asada Chemical Industry Co., Ltd.: represented by Al 2 o 3 Equivalent to 17% in terms of Al 2 (SO 4 ) 3 Equivalent to 56.3%~58.6%): 1.26 parts by weight

[0346] ·Ion-exchanged water: 15 parts by weight

[0347] The above-mentioned ingredients were placed in a co...

Embodiment 2

[0444] A transparent toner (TNA2T) and a transparent toner developer (DTNA2T) were obtained by the same method as in Example 1, except that, in the preparation of the transparent toner (TNA1T) in Example 1, the transparent toner The amount of (TNA1T-1) was changed to 98.6 parts by weight, and the amount of the transparent toner (TNA1T-2) was changed to 1.4 parts by weight. The physical properties of the obtained toners are shown in Table 2.

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Abstract

The present invention relates to a transparent toner, an image forming method, and a toner set. The transparent toner includes toner particles having a volume average particle diameter of 18 μm to 28 μm and satisfying the following formulas (1) and (2), wherein Nta is when 0.5 μm≤circle-equivalent diameter≤200 μm is satisfied and the number of particles under the measurement conditions of 0.40≤circularity≤1.00; Ntb is the number of particles under the measurement conditions of 0.5×Dta(μm)≤circle equivalent diameter≤2.5×Dta(μm) and 0.60≤circularity≤0.90 and Ntc is the number of particles under the measurement conditions of 2.5×Dta(μm)≤circle-equivalent diameter≤200μm and 0.40≤circularity≤1.00; and Dta is the number of particles satisfying 0.5μm≤circle-equivalent diameter The average circle equivalent diameter under the measurement conditions of ≤200μm and 0.40≤circularity≤1.00. 0.1≤Ntb / Nta×100≤2.5(1); 0≤Ntc / Nta×100≤1.0(2).

Description

technical field [0001] The present invention relates to a transparent toner, an image forming method, and a toner set. Background technique [0002] In recent years, electrophotographic systems have begun to be used in the printing field, and thus are expected to be able to obtain images in electrophotographic form that can provide special effects that printing in the prior art has achieved. As an example, there is a method in which a transparent resin layer having an image thickness of about 20 μm to 100 μm is formed on a colored image to provide a visually enhanced impression, which is called thick printing. [0003] Thick printing requires a thicker image thickness and has not been actively studied in electrophotographic printing to date. [0004] As conventional transparent toners, for example, those described in JP-A-10-301339 (Patent Document 1), JP-T-2010-533318 (Patent Document 2), JP-A-2002-236396 ( Patent Document 3), JP-A-2005-99122 (Patent Document 4) and JP-A-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G9/08G03G15/00G03G15/08
CPCG03G15/6585G03G9/0819G03G9/0827G03G9/09G03G9/08G03G15/06G03G15/16
Inventor 吉田聪村上毅
Owner FUJIFILM BUSINESS INNOVATION CORP