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A kind of preparation method of color carbon powder

A toner and color technology, which is applied in the field of color toner preparation, can solve the problems of irregular shape of color toner, uniform dispersion of colorant, high waste toner rate, etc., and achieve stable and uniform colorant, uniform dispersion, and enhanced charge performance Effect

Active Publication Date: 2020-07-21
合肥皖水信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this preparation method has defects such as the inability of the colorant to be uniformly dispersed in the resin, the irregular shape of the prepared color toner, the large particle size and wide distribution, etc., resulting in poor fixability during printing and copying (easy to stick to the roller) , low resolution, poor color, high waste powder rate and other defects, and the process of this method is relatively complicated, so the cost is high

Method used

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  • A kind of preparation method of color carbon powder
  • A kind of preparation method of color carbon powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of colored carbon powder, comprising the following steps:

[0020] (1) Prepare the reaction components separately:

[0021] Prepare macromolecule emulsion, described macromolecule emulsion is that styrene-acrylic polymer emulsion and polyacrylate emulsion are mixed by 5:1 mass ratio;

[0022] Adding polypropylene wax and activated nano diatomite particles to deionized water to make a mass fraction of polypropylene wax dispersion is 5%, and the activated nano diatomite mass percentage is 0.2% in the polypropylene wax dispersion;

[0023] The coloring agent and bismuth oxide-coated nano-silica are added to deionized water to make a colorant dispersion with a mass fraction of 1.2%, and the mass fraction of bismuth oxide-coated nano-silica in the colorant dispersion is 0.3%;

[0024] (2) Add the polymer emulsion, wax dispersion and colorant dispersion into deionized water in a mass ratio of 58:6:3 for dispersion, adjust the pH value of the mixture to 4...

Embodiment 2

[0032] A preparation method of colored carbon powder, comprising the following steps:

[0033] (1) Prepare the reaction components separately:

[0034] Prepare macromolecular emulsion, described macromolecular emulsion is that styrene-acrylic polymer emulsion and polyacrylate emulsion are mixed by 8:1 mass ratio;

[0035] Adding polypropylene wax and activated nano-diatomite particles to deionized water to make a mass fraction of polypropylene wax dispersion is 7%, and the activated nano-diatomite mass percentage is 0.4% in the polypropylene wax dispersion;

[0036] The coloring agent and bismuth oxide-coated nano-silica are added to deionized water to make a colorant dispersion with a mass fraction of 1.5%, and the mass fraction of bismuth oxide-coated nano-silica in the colorant dispersion is 0.5%;

[0037] (2) Add the polymer emulsion, wax dispersion and colorant dispersion into deionized water in a mass ratio of 60: 8: 5 for dispersion, adjust the pH value of the mixture ...

Embodiment 3

[0045] A preparation method of colored carbon powder, comprising the following steps:

[0046] (1) Prepare the reaction components separately:

[0047] Prepare macromolecule emulsion, described macromolecule emulsion is that styrene-acrylic polymer emulsion and polyacrylate emulsion are mixed by 6:1 mass ratio;

[0048] Adding polypropylene wax and activated nano diatomite particles into deionized water to make a mass fraction of 6% polypropylene wax dispersion, activated nano diatomite mass percent in the polypropylene wax dispersion is 0.3%;

[0049] Colorant and bismuth oxide-coated nano-silica are added to deionized water to make a colorant dispersion with a mass fraction of 1.4%, and the massfraction of bismuth oxide-coated nano-silica in the colorant dispersion is 0.4%;

[0050] (2) Add the polymer emulsion, wax dispersion and colorant dispersion into deionized water in a mass ratio of 59:7:4 for dispersion, adjust the pH value of the mixture to 4.3, and then stir at 30...

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Abstract

The invention discloses a preparation method of color toner, and relates to the technical field of office consumables. The preparation method comprises the following steps: (1) preparing reaction components respectively; (2) adding a macromolecular emulsion, a wax dispersion liquid and a colorant dispersion liquid into deionized water to obtain a mixed solution, and adding humus acid grafted acrylic acid into the mixed solution to obtain a pretreated material; (3) adding a polymerization reaction monomer and an initiator into the pretreated material for a polymerization reaction, controlling the reaction temperature to be between 80 DEG C and 90 DEG C, then carrying out ultrasonic treatment, and then cooling, separating and drying to obtain the color toner. The color toner prepared in the invention is free of roll coating, and the color can be preserved for long time.

Description

technical field [0001] The invention belongs to the technical field of office consumables, and in particular relates to a preparation method of colored carbon powder. Background technique [0002] Color toner is usually composed of polymer resin, colorant (pigment or dye), wax, external additives (charge control agent, etc.) and other components. The traditional color toner used for electrostatic development is usually prepared by melting and pulverizing. This method is to melt and mix resins, colorants, and additives, extrude, cool, crush, ultrafinely pulverize, classify, and add external additives. Finally, Made into colored toner. However, this preparation method has defects such as the inability of the colorant to be uniformly dispersed in the resin, the irregular shape of the prepared color toner, the large particle size and wide distribution, etc., resulting in poor fixability during printing and copying (easy to stick to the roller) , low resolution, poor color, hig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G9/08
CPCG03G9/0806
Inventor 白娜娜
Owner 合肥皖水信息科技有限公司
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