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Resin for copier toner, and red toner preparation method

A technology for toners and copiers, applied in developer, electrography, optics, etc., can solve the problems of difficulty in charge control, unstable color density, high sensitivity to ambient temperature and humidity, and achieve good image quality and durable printing. Sexually stable effect

Inactive Publication Date: 2017-11-21
安徽天兴凯顿信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polyester resin itself has difficulties in charge control, and is highly sensitive to environmental temperature and humidity during printing, resulting in unstable color density, bottom dust, and pollution caused by flying powder inside the machine.

Method used

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  • Resin for copier toner, and red toner preparation method
  • Resin for copier toner, and red toner preparation method
  • Resin for copier toner, and red toner preparation method

Examples

Experimental program
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preparation example Construction

[0042]According to an embodiment of the present invention, a method for preparing a red toner is provided, wherein the red toner includes the following raw materials in parts by weight: styrene-n-butyl acrylate polymer 100, colorant 5-20, vapor phase Silicon dioxide 0.25-0.75, release agent 0-10 and / or charge control agent 0-10; the colorant includes at least one of the following: red iron oxide, lake red, benzimidazolone red, quinacridine Ketone red, permanent red 4R, Lithol red, carbon black, ferric oxide, preferably quinacridone red.

[0043] In addition, for the above-mentioned red toner, wherein, the release agent includes at least one of the following: paraffin wax, palm wax, beeswax, montan wax, Fischer-Tropsch wax, ester wax; preferably palm wax, ester wax; more preferably palm wax Wax; the charge control agent includes at least one of the following: salicylic acid metal complexes, azo metal complexes, diphenylglycolic acid boron complexes, macromolecular organic polym...

Embodiment 1

[0053] Preparation of toner weight ratio composition:

[0054] Styrene-n-butyl acrylate resin: 100 parts (Mw=110000, Mn=4000, Mp1=3000, Mp2=130000, Tg=50°C, Tsp=90°C)

[0055] Coloring agent: 6 parts (DIC company pigment red PR122)

[0056] Release agent: 1 part (carnauba wax T3)

[0057] Charge control agent: 1.2 parts (E-84 of Japan Oriental Chemical Co., Ltd.)

[0058] Fumed silica: 0.3 parts (EVONIK R812)

[0059] Fumed silica: 0.6 parts (EVONIK R972)

Embodiment 2

[0061] Preparation of toner weight ratio composition:

[0062] Styrene-n-butyl acrylate resin: 100 parts (Mw=90000, Mn=3000, Mp1=2000, Mp2=110000, Tg=45°C, Tsp=85°C)

[0063] Coloring agent: 6 parts (DIC company pigment red PR122)

[0064] Ferric oxide: 1 part (TB5625 of Huntsman)

[0065] Release agent: 2 parts (carnauba wax T3)

[0066] Charge control agent: 0.8 parts (E-84 of Japan Oriental Chemical Co., Ltd.)

[0067] Fumed silica: 0.25 parts (EVONIK R812)

[0068] Fumed silica: 0.75 parts (EVONIK R972)

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Abstract

The invention relates to a resin for a copier toner, and a red toner preparation method. The toner resin is a styrene-acrylic acid n-butyl ester polymer; a red toner is obtained by the steps of: pre-mixing the following raw materials in parts by weight: 100 parts of the styrene-acrylic acid n-butyl ester polymer, 5-20 parts of a colouring agent and 0.25-0.75 part of vapour-phase silicon dioxide, extruding to crush, gradually crushing, and then, mixing; and the colouring agent includes at least one selected from a group consisting of red iron oxide, lake red, benzimidazolone red, quinacridone red, permanent red 4R, lithol red, carbon black and ferroferric oxide. The resin for the copier toner, and the red toner preparation method disclosed by the invention have the beneficial effects that: the toner including the styrene-acrylic acid n-butyl ester polymer has good image quality of a printing product in a wide-format copier test; and the toner has stable expressivity and printing durability in different environmental conditions, such as a high-temperature and high-humidity environmental condition, a low-temperature and low-humidity environmental condition and a normal-temperature and normal-humidity environmental condition, and is suitable for requirements of a wide-format copier toner.

Description

technical field [0001] The invention relates to a toner resin, in particular to a preparation method for a copier toner resin and a red toner. Background technique [0002] During the copying process, the toner adheres to the paper surface under the action of temperature and pressure with the help of polymer resin. Among them, the toner can be selected from high polymers such as polystyrene, polyacrylic acid, and polymethyl methacrylate; the resin used in the toner generally includes styrene-methacrylic resin, polyamide, polyolefin, styrene-acrylic resin, benzene, etc. Ethylene-butadiene resin, cross-linked styrene polymer, epoxy resin, polyurethane, p-halogenated styrene, etc. [0003] A wide-format copier that can use A0 drawings at most is usually divided into non-contact fixing, contact thermal fixing, pressure fixing and other methods. Due to the large format and fast speed, the toner cannot be fully fused on the printing material, and usually the printing product wil...

Claims

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Application Information

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IPC IPC(8): G03G9/09G03G9/08
CPCG03G9/0802G03G9/0904G03G9/0906
Inventor 陈勇
Owner 安徽天兴凯顿信息科技有限公司