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Magnetic single component powdered ink

A single-component, toner technology, applied in inks, household appliances, applications, etc., can solve the problems of blackness and bottom ash that plague laser printer toners, lack of versatility, and high consumption, and achieve stable image quality. , Enhance uniformity and durability, and improve the effect of blackness

Active Publication Date: 2009-12-02
邯郸汉光办公自动化耗材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the versatility is not strong. Blackness and background dust have always been two major problems that plague laser printer toners.
For example, on some models, there are disadvantages such as large bottom ash, shallow blackness, rapid reduction in continuous printing blackness, and large consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0006] The composition and weight ratio of the present invention are: resin: 30-70%, magnetic powder: 25-60%, colorant: 0-10%, paraffin: 2-10%, charging agent: 0.1-4%, alkaline earth metal Oxides: 0.1-10%, external additives: 0.1-5%. Example: styrene-acrylic resin: 45%, magnetic powder: 45%, carbon black: 1%, paraffin: 3.5%, charging agent: 2.6%, strontium oxide: 2%, silicon dioxide: 0.9%.

[0007] The alkaline earth metal oxides are magnesium oxide, calcium oxide, strontium oxide and barium oxide.

[0008] The preparation process is as follows: weigh the resin, magnetic powder, colorant, paraffin, charging agent, and alkaline earth metal oxide in proportion, put them into the raw material mixer and mix them thoroughly for 10-30 minutes, then knead and press them into flakes by the kneader , After pulverization and classification, the graded product is obtained. The particle size of the graded product is controlled at 5-14 μm. Finally, the external additive is added to the gr...

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PUM

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Abstract

The invention relates to a magnetic single-component powdered ink, comprising the following components in weight percent: resin, 30-70 wt%; magnetic powder, 25-60wt%; colorant, 0-10wt%; paraffin, 2-10 wt%; charged agent, 0.1-4wt%; alkaline earth metal oxide, 0.1-10wt%; and additive 0.1-5wt%; and its preparing process: weighing resin, magnetic powder, paraffin, charged agent and alkaline earth metal oxide in proportion, putting in a mixer and fully mixing, rolling into sheets by a mixing roll, crushing and classifying and obtaining the classified products, adding in the additive, and finally mixing by mixer and screening to make it. And it has advantages of stabilizing image quality, strengthening blackening, improving blackening uniformity and persistence, reducing bottom ash and distinct gradation, as well as strong universality, low cost, easy to control and less pollution.

Description

(1) Technical field [0001] The invention relates to a magnetic single-component toner for laser printers. (two), background technology [0002] At present, there are many manufacturers of magnetic single-component toner used in laser printers. On most models, their products have excellent performance in terms of blackness, bottom dust, image level, resolution, sticking to drums, fixing, fluidity, and environmental adaptation. Performance, storage, transportation and other aspects can meet the basic requirements of end customers. However, the versatility is not strong. Blackness and background dust have always been two major problems that plague laser printer toner. For example, on some models, there are disadvantages such as large bottom ash, light blackness, rapid reduction in continuous printing blackness, and large consumption. (3) Contents of the invention: [0003] In order to overcome the shortcomings of the prior art, the present invention provides a magnetic sing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/10C09D11/12C09D7/12C09D11/03C09D11/107
Inventor 续守民杜丽英靳光强
Owner 邯郸汉光办公自动化耗材有限公司
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