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Red carbon powder for laser printer and preparation thereof

A laser printer, red technology, applied in the direction of optics, electrical recording, instruments, etc., can solve the problems of poor color persistence and inability to guarantee the persistence of handwriting, so as to improve color persistence, meet the requirements of persistence anti-counterfeiting management, and solve the problem of long-term save the effect of the question

Inactive Publication Date: 2010-03-31
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the pigment component of the black toner used in ordinary laser printers or color laser printers is magnetic powder, and its color has persistence, while the toner of red, yellow, and blue color toners is organic pigment, and the color persistence is poor. The color graphics and printed red stamps printed by laser printer toner can not guarantee the durability of writing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) select and weigh the nano iron oxide red of 4 weight parts, the nano iron oxide yellow of 2 weight parts, the ultraviolet fluorescent powder of 8 weight parts, the polyester resin of 78 weight parts, the polypropylene wax of 1 weight part, 1 Zinc salicylate complex charge regulator in parts by weight, dimethyldichlorosilane in 1 part by weight and hexamethyldisilazane in 5 parts by weight, stand by; the polyester resin is Wuxi Jia The MND-1054 type polymer resin produced by Teng Magnetic Powder Co., Ltd. is 1 kg per 1 weight part;

[0037] (2) The nano iron oxide red, nano iron oxide yellow, fluorescent powder, polypropylene wax, charge regulator and polyester resin components are sequentially added to the mixer by gradient feeding mixing method, and then mixed step by step to make a uniform Mixture;

[0038] (3) kneading the mixture for 5 minutes at 90°C, and extruding it into a sheet;

[0039] (4) The flakes are cooled to 40°C and coarsely pulverized into 30μm p...

Embodiment 2

[0044] (1) Select 6 parts of nano iron oxide red, 3 parts of nano iron oxide yellow, 20 parts of ultraviolet phosphor, 85 parts of polyester resin, 6 parts of polypropylene wax, 3 parts of salicylic acid metal zinc complex Charge regulator, 3 parts of dimethyldichlorosilane and 7 parts of hexamethyldisilazane, for use; the polyester resin is MND-1054 type polymer produced by Wuxi Jiateng Magnetic Powder Co., Ltd. Resin, described every 1 weight part is 1 kilogram;

[0045] (2) The nano iron oxide red, nano iron oxide yellow, fluorescent powder, polypropylene wax, charge regulator and polyester resin components are sequentially added to the mixer by gradient feeding mixing method, and then mixed step by step to make a uniform Mixture;

[0046] (3) kneading the mixture for 4 minutes at 130°C, and extruding it into a sheet;

[0047] (4) The flakes are cooled to 43°C and coarsely pulverized into 40 μm pulverized powder;

[0048] (5) Pulverized by fluidized airflow (the particle...

Embodiment 3

[0052] (1) Select 8 parts of nano iron oxide red, 4 parts of nano iron oxide yellow, 25 parts of ultraviolet phosphor, 95 parts of polyester resin, 10 parts of polypropylene wax, 5 parts of salicylic acid metal zinc complex Charge regulator, 4 parts of dimethyldichlorosilane and 8 parts of hexamethyldisilazane, for use; the polyester resin is MND-1054 type polymer produced by Wuxi Jiateng Magnetic Powder Co., Ltd. Resin, described every 1 weight part is 1 kilogram;

[0053] (2) The nano iron oxide red, nano iron oxide yellow, fluorescent powder, polypropylene wax, charge regulator and polyester resin components are sequentially added to the mixer by gradient feeding mixing method, and then mixed step by step to make a uniform Mixture;

[0054] (3) kneading the mixture for 3 minutes at 150°C, and extruding it into a sheet;

[0055] (4) The flakes are cooled to 45°C and coarsely pulverized into particles of 45 μm;

[0056](5) Pulverized by fluidized airflow (the particle size...

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PUM

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Abstract

The invention relates to a red carbon powder for a laser printer, comprising the following raw materials in parts by weight: 4-8 parts of nano iron oxide red, 2-4 parts of nano iron oxide yellow, 8-25parts of ultraviolet fluorescent powder, 78-95 parts of polyester resin, 1-10 parts of poly propylene wax, 1-5 parts of salicylic acid metallic zinc complex charge controlling agent, 1-4 parts of dimethyl dichlorosilae and 5-8 parts of hexamethyl disilazane; and the preparation method comprises the steps of mixing, milling, extrusion molding, multi-stage crushing, separation, surface modificationof the above raw materials. By utilizing the red carbon powder for the laser printer in a general laser printer and a colored laser printer, a printed archive image-text can be stored for a long time; and a predesigned anti-fake label of the archive image-text can be seen under UV-irradiation, thereby achieving security and anti-counterfeiting effects.

Description

technical field [0001] The invention relates to a carbon powder and a preparation method thereof. In particular, it relates to a red toner for a persistent encryption security laser printer that uses a common laser printer or a color laser printer to print file graphics, red anti-counterfeiting seals or color graphics and a preparation method thereof. Background technique [0002] At present, the pigment component of black toner used in ordinary laser printers or color laser printers is magnetic powder, and its color is durable, while the toners of red, yellow, and blue color toners are organic pigments, which have poor color durability. Color graphics and red stamps printed with laser printer toner cannot guarantee the durability of handwriting. [0003] In order to solve the technical problem of long-term preservation of electronic signature seals and file pictures and texts in the official document issuance system printed by ordinary laser printers and color laser printe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G9/08G03G9/097
Inventor 宋宝珍周学良张伟刚唐清莫海涛张小勇周维伟李锦芳周维明马宝林朱永平
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI