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Method for preparing color laser printing black toner from multivariate mixed resin

A technology of mixing resin and color laser, applied in optics, instruments, electrographics, etc., can solve the problems of insufficient fixing stability, insufficient color mixing, low fixing firmness, etc., to improve the triboelectric charging performance of powder, Good fixing effect and improve the effect of fixing firmness

Inactive Publication Date: 2016-09-28
EXCELLENT COLOR TECH HUBEI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The specific performance is as follows: (1) The fixing temperature must meet the requirements of the fixing range of the color copier; (2) The fixing stability is not good enough: (3) The color mixing degree is not enough; (4) The fixing degree is low and ghosting is easy to occur; ( 5) In addition, due to the development of various types of printers, it is difficult to have a toner that can meet the needs of various printers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] S1, the polyethylene terephthalate resin of 5 parts by mass, the polystyrene and acrylate copolymer resin of 5 parts by mass and the polybisphenol A epichlorohydrin resin of 1 mass part are blended uniformly into a resinous matrix;

[0039] S2, with 100 mass parts of the resin matrix that step S1 obtains, with the wax of 1 mass part, the carbon black of 1 mass part, the zinc salicylate of 0.1 mass part, mix 2 minutes in high-speed mixer, then mix the The material is mixed and kneaded by a twin-screw extruder, and the mixing temperature is set at 60°C. The melt after mixing is cooled and pressed into tablets, and broken into granular coarse materials;

[0040] S3, crush and classify the coarse material obtained in step S2 through a jet mill to obtain a powder of 5 to 16 microns, take 100 parts by mass of the powder of 5 to 16 microns, add 0.5 parts by mass of fumed silica, and 0.05 parts by mass of gas phase Titanium dioxide and 0.1 parts by mass of iron oxide black wer...

Embodiment 2

[0042] S1, the poly(trimethylene terephthalate) resin of 20 parts by mass, the polystyrene and methacrylate copolymer resin of 20 parts by mass and the polybisphenol A epichlorohydrin resin of 1 part by mass are uniformly prepared into a resinous matrix;

[0043] S2, with 100 mass parts of the resin matrix that step S1 obtains, with the wax of 1 mass part, the carbon black of 1 mass part, the zinc salicylate of 0.1 mass part, mix 2 minutes in high-speed mixer, then mix the The material is mixed and kneaded by a twin-screw extruder, and the mixing temperature is set at 90°C. The melt after mixing is cooled and pressed into tablets, and broken into granular coarse materials;

[0044] S3, crush and classify the coarse material obtained in step S2 through a jet mill to obtain a powder of 5 to 16 microns, take 100 parts by mass of the powder of 5 to 16 microns, add 0.5 parts by mass of fumed silica, and 0.1 parts by mass of gas phase Titanium dioxide and 0.1 parts by mass of iron ...

Embodiment 3

[0046] S1, the polybutylene terephthalate resin of 30 parts by mass, the poly-a-methylstyrene acrylate copolymer resin of 30 parts by mass and the polybisphenol A epichlorohydrin resin of 10 parts by mass are blended Uniformly made resin matrix;

[0047] S2, 100 mass parts of the resin matrix that step S1 obtains, with the wax of 5 mass parts, the carbon black of 8 mass parts, the zinc salicylate of 5 mass parts, mix 6 minutes in high-speed mixer, then mix the The material is mixed and kneaded by a twin-screw extruder, and the mixing temperature is set at 120°C. The melt after mixing is cooled and pressed into tablets, and broken into granular coarse materials;

[0048] S3, crush and classify the coarse material obtained in step S2 through a jet mill to obtain a powder of 5 to 16 microns, take 100 parts by mass of a powder of 5 to 16 microns, add 10 parts by mass of fumed silica, and 5 parts by mass of gas phase Titanium dioxide and 5 parts by mass of iron oxide black were mi...

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PUM

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Abstract

The present invention proposes a method for making black carbon powder for color laser printing with a multi-component mixed resin. By adding polyester resin and epoxy resin to the copolymerized polystyrene-acrylic resin, the frictional electrification performance of the powder can be improved; the powder has Lower melting temperature and relatively high glass transition temperature improve thermal performance and improve melting characteristics at relatively low temperatures; by adding the above three resins, the powder fixing performance and developing performance can be improved, and the fixing temperature range is wider. The fixing effect is better, the color mixing is more uniform, and the fixation firmness is improved, which meets the needs of various printers and expands the applicable surface of powder.

Description

technical field [0001] The invention relates to the preparation technology of black carbon powder for color laser printing, in particular to a method for preparing black carbon powder for color laser printing with multi-component mixed resin. Background technique [0002] At present, with the increasing use of color printing, customers have higher and higher requirements for printing or copying quality, and the fixing and developing toner originally used in black printers are less and less able to meet the demand. The specific performance is as follows: (1) The fixing temperature must meet the requirements of the fixing range of the color copier; (2) The fixing stability is not good enough: (3) The color mixing degree is not enough; (4) The fixing degree is low and ghosting is easy to occur; ( 5) In addition, due to the development of more and more printers of various types, it is difficult to have a kind of toner that can meet the needs of multiple printers. Contents of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G9/097G03G9/08
CPCG03G9/09725G03G9/08708G03G9/08753G03G9/08755
Inventor 杨雄刘家举黄小斌戴军鹏
Owner EXCELLENT COLOR TECH HUBEI
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