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Toner resin for copying machine and preparation method of yellow toner

A technology for toner and copiers, applied in developer, electrography, optics, etc., can solve problems such as unstable color density, difficult charge control, pollution, etc., and achieve stable printing durability and good image quality of printed products

Inactive Publication Date: 2017-12-05
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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  • Toner resin for copying machine and preparation method of yellow toner
  • Toner resin for copying machine and preparation method of yellow toner
  • Toner resin for copying machine and preparation method of yellow toner

Examples

Experimental program
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preparation example Construction

[0042]According to an embodiment of the present invention, a method for preparing a yellow toner is provided, wherein the yellow 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: yellow iron oxide, benzidine yellow, Hansa yellow, chrome yellow, benzo Imidazolone yellow, quinacridone yellow, carbon black, ferric oxide, preferably quinacridone yellow.

[0043] In addition, for the above-mentioned yellow 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, macro...

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] Colorant: 8 parts (Pigment Yellow PY180 from UNION Company);

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

[0057] Charge control agent: 1.2 parts (E-84 of Japan Oriental Chemical Company);

[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] Colorant: 8 parts (Pigment Yellow PY180 from UNION Company);

[0064] Iron tetroxide: 1 part (TB5625 of Huntsman, used to enhance coloring);

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

[0066] Charge control agent: 0.8 parts (E-84 of Japan Oriental Chemical Company);

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

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

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Abstract

Toner resin for a copying machine and a preparation method of a yellow toner are disclosed. The toner resin is a styrene-n-butyl acrylate polymer. Raw materials including 100 parts by weight of styrene-n-butyl acrylate polymer, 5-20 parts by weight of a colouring agent and 0.25-0.75 part by weight of fumed silica undergo steps of premixing, extruding and crushing, gradual crushing and post-mixing so as to obtain the yellow toner. The colouring agent contains at least one of the following ingredients: yellow iron oxide, benzidine yellow, Hansa yellow, chrome yellow, benzimidazolone yellow, quinacridone yellow, carbon black and ferriferrous oxide. The invention has the following beneficial effects: (1) in a wide-format copying machine testing of the toner containing styrene-n-butyl acrylate polymer, quality of printed images is good; and (2) the toner is stable under different environmental conditions such as high temperature and high humidity, low temperature and low humidity, normal temperature and normal atmospheric humidity, etc., has stable print durability and meets requirements of toner for wide-format copying machines.

Description

technical field [0001] The invention relates to a toner resin, in particular to a method for preparing a toner resin and a yellow toner used in copiers. 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 p...

Claims

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Application Information

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IPC IPC(8): G03G9/087G03G9/08
CPCG03G9/0808G03G9/08711
Inventor 陈勇
Owner 安徽天兴凯顿信息科技有限公司
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