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Red ink powder and preparation method thereof

A technology of red ink and toner, which is applied in the field of red toner for color dot photography equipment and its preparation, which can solve the problems of air pollution and poor dispersion, and achieve the effect of small equipment investment, low production cost and uniform toner particles

Inactive Publication Date: 2010-01-06
山东富美科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that if the toner raw material is added to the polymer latex without adding any dispersant, there will inevitably be poor dispersion; Disadvantages such as the release of organic solvents causing pollution to the atmosphere, the polymer latex in the carbon powder raw material described in this patent has certain limitations

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Add 80 parts of resin, 5 parts of red pigment, 0.2 parts of charge regulator, and 14.8 parts of polypropylene wax into the melting tank, heat it under stirring until the mixture is completely melted and mixed uniformly, and the melt passes through the fog at 2.8Mp The atomizer is atomized into small droplets, and the airflow air is introduced at the top of the atomization device, and the droplets are dried by a mixed flow method. After drying, silicon dioxide is added under high-speed stirring at 1000 rpm for modification. After five minutes, the The air classifier yields toner particles with a diameter of 5-7 microns.

Embodiment 2

[0018] Add 70 parts of resin, 6 parts of red pigment, 0.5 parts of charge regulator, and 23.5 parts of polypropylene wax into the melting tank, and heat it under stirring until the mixture is completely melted and mixed evenly. The melt is under the pressure of 2.6Mp After being atomized into small droplets by the atomizer, cold air is introduced into the top of the atomization device, and the droplets are dried by mixed flow. After drying, silicon dioxide is added under high-speed stirring at 1000 rpm for modification. Minutes later, the toner particles with a diameter of 5-7 microns were obtained by an air classifier.

Embodiment 3

[0020] Add 80 parts of resin, 8 parts of red pigment, 5 parts of charge regulator, and 5 parts of polypropylene wax into the melting tank, and heat it under stirring until the mixture is completely melted and mixed uniformly. The melt is under the pressure of 2.5Mp After being atomized into small droplets by the atomizer, cold air is introduced into the top of the atomization device, and the droplets are dried by mixed flow. After drying, silicon dioxide is added under high-speed stirring at 1000 rpm for modification. Minutes later, the toner particles with a diameter of 8-10 microns were obtained by an air classifier.

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Abstract

The invention relates to a red ink powder and a preparation method thereof. The preparation method comprises the following steps: heating 30-90 parts of resin, 5-10 parts of red pigment, 0.1-5 parts of charge control agent and 1-30 parts of polypropylene wax to melt, stirring the molten materials to disperse evenly, performing spray granulation with an atomizer, cooling to obtain ink powder particles, adding flowable agent for modification and finally obtaining the ink powder product through air classification. The ink powder particles prepared by the invention has uniform particles, good low-temperature fixing effect, more than 90% of transfer printing rate small processing equipment investment, simple process operation, short flow, low production cost, and no effluent or exhaust gas emission which can pollute the environment in preparation process, and ultrafine and ultracoarse ink powder particles can be recycled to a melting kettle for reuse, thus making the most use of the raw materials.

Description

technical field [0001] The invention relates to a toner and a preparation method thereof, in particular to a red toner for color dot photography equipment and a preparation method thereof. Background technique [0002] With the improvement of office demand, color electrophotographic equipment, color laser printers, color copiers, etc. are more and more popular with users. To meet the requirements of high resolution, it is necessary to control the particle size of the toner, and to achieve better development purposes. Shape rules are required , Toner with good fluidity. However, most of the current production of color toner still adopts the traditional physical pulverization method, that is, various toner raw materials are mixed, kneaded, pulverized, classified, and additives are added to prepare toner. The process of producing toner by physical method is complicated, consumes a lot of energy, and the irregular shape of toner particles leads to poor fluidity. At the same tim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G9/097
Inventor 钟国春何美玲
Owner 山东富美科技有限公司
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