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Magnetic one-component powdered ink and preparation method thereof

A single-component, toner technology, applied in the printing field, can solve problems such as low density, burrs, and insufficient charging of toner, and achieve the effects of stable charge distribution, stable image density, and no burrs in writing

Active Publication Date: 2017-07-28
广州丽格新材材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In this process, the performance of the toner is very strict. In the prior art, the electrification ability of the toner is insufficient, which will lead to insufficient charging of the toner, or the extreme charge will cause the charge of the toner to be uneven, or make the carbon powder The powder cannot be fully charged, and there are abnormal phenomena such as low density and burrs. Therefore, in the field of laser printing, it is required that the toner can be charged at a high speed in a short time and maintain a stable and excellent charging ability.

Method used

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  • Magnetic one-component powdered ink and preparation method thereof
  • Magnetic one-component powdered ink and preparation method thereof
  • Magnetic one-component powdered ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~3

[0066] The components of embodiment 1~3 are as shown in table 2:

[0067] Components of Table 2 Embodiment 1~3

[0068]

[0069]

[0070] Embodiment 1~3 is tested by the test method in comparative example:

[0071] The initial printing density of Example 1 was 1.282, and the density after printing 3000 sheets was 1.354. There is no glitch in the printing process.

[0072] The initial printing density of Example 2 was 1.257, and the density after printing 3000 sheets was 1.303. There is no glitch in the printing process.

[0073] The initial printing density of Example 3 was 1.202, and the density after printing 3000 sheets was 1.312. There is no glitch in the printing process.

[0074] From the test results of Examples 1 to 3, it can be seen that the image density of the examples is higher than that of the comparative example 1, and the high density can still be maintained after 3000 images.

[0075] The source of composition of comparative example and embodiment i...

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PUM

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Abstract

The invention discloses magnetic one-component powdered ink and a preparation method thereof. The magnetic one-component powdered ink comprises the following components: 0.5-5 parts of a salicylic acid metal complex charge control agent, 0.5-5 parts of an azo metal complex charge control agent, 45-65 parts of resin, 35-60 parts of a coloring agent, 1-10 parts of a release agent and 0.5-2 parts of hydrophobic silicon. The preparation method comprises the following steps: 1) mixing raw materials to obtain mixture; 2) putting the mixture into an extruding machine to be extruded, so that extrudate is obtained; 3) smashing the extrudate into coarse crushed aggregates, and then further smashing the coarse crushed aggregates into a powder semi-finished product; and 4) adding hydrophobic silicon into the powder semi-finished product, and mixing, so that the magnetic one-component powdered ink is obtained. The powdered ink has the characteristics of stable charge distribution, stable image density and no handwriting burr.

Description

technical field [0001] The invention relates to a magnetic single-component toner and a preparation method thereof, belonging to the technical field of printing. Background technique [0002] Laser printing has been popularized to families in the market. The printing process includes: 1. Charging: so when printing starts, the photosensitive drum is first initialized, that is, the outer surface of the drum is evenly charged with a negative charge. 2. Exposure: When the printer starts to print, the laser generator generates a laser beam, which is reflected onto the photosensitive drum through the scanning mirror, so that the photosensitive layer of the part irradiated by light (that is, exposure) becomes a conductor, and the negative charge on its surface Discharge to the ground (the degree of discharge is determined by the exposure intensity), at this time, an electrostatic latent image with different potentials is formed on the photosensitive drum surface. 3. Developing (i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G9/097G03G9/08
CPCG03G9/0802G03G9/09783
Inventor 刘奎刘玉波
Owner 广州丽格新材材料科技有限公司
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