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Durable false-proof yellow carbon powder for laser printer and its preparing method

A laser printer and durability technology, applied in optics, electrical recording, instruments, etc., can solve the problems of poor durability, no anti-counterfeiting performance, yellow marks and color pictures and texts are not stored for a long time, and achieve the effect of good durability

Inactive Publication Date: 2007-05-23
周学良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the main component of yellow toner used in laser printers is organic pigments, and its color durability is poor. The yellow imprints and color graphics printed with these toners are not stored for a long time, and it is difficult to adapt to archival graphic materials and imprints. Long-term storage requirements
In addition, the above-mentioned yellow toner has no anti-counterfeiting performance, and the graphics and texts printed with this toner also have no anti-counterfeiting performance, especially the printed signatures, stamps and other imprints, it is difficult to distinguish the authenticity, and it is easy for counterfeiters to take advantage of it. machine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Select 2 parts of ferric chloride yellow, 12 parts of ultraviolet fluorescent powder, 80 parts of polyester resin, 2 parts of polypropylene wax, 2 parts of charge regulator, 1 part of dimethyldichlorosilane and 6 parts of Hexamethyldisilazane. Among them the charge regulator is a metal chromium salicylate.

[0022] First pour iron oxide yellow, ultraviolet fluorescent powder, polyester resin, polypropylene wax and charge regulator into a mixer, and mix evenly to make a mixture.

[0023] Then put the above-mentioned mixture into an extruder, extrude the above-mentioned mixture at a temperature of 95° C., and press it into a tablet.

[0024] Then, the flake mix was cooled to 40°C and crushed into pieces.

[0025] Thereafter, the above fragments were pulverized into pulverized powder with a particle size of 30 μm by a pulverizer.

[0026] After that, use a pressure of 7kg / m 2 The above-mentioned crushed powder is air-pulverized in a fluidized bed pulverizer, classified...

Embodiment 2

[0030] Select 3 parts of iron oxide yellow, 16 parts of ultraviolet fluorescent powder, 85 parts of polyester resin, 5 parts of polypropylene wax, 3 parts of charge regulator, 2 parts of dimethyldichlorosilane and 6.5 parts of six Methyldisilazane. Among them, the charge regulator is a metal azochrome compound.

[0031] First pour iron oxide yellow, ultraviolet fluorescent powder, polyester resin, polypropylene wax and charge regulator into a mixer, and mix evenly to make a mixture.

[0032] Then put the above-mentioned mixture into an extruder, extrude the above-mentioned mixture at a temperature of 120° C., and press it into a tablet.

[0033] The flake mix was then cooled to 45°C and crushed into pieces.

[0034] Thereafter, the above fragments were pulverized into pulverized powder with a particle diameter of 40 μm by a pulverizer.

[0035] After that, use a pressure of 7kg / m 2 The above-mentioned crushed powder is air-pulverized in a fluidized bed pulverizer, classifi...

Embodiment 3

[0039] Select 4 parts of iron oxide yellow, 20 parts of ultraviolet fluorescent powder, 90 parts of polyester resin, 8 parts of polypropylene wax, 4 parts of charge regulator, 3 parts of dimethyldichlorosilane and 7 parts of six Methyldisilazane. Among them the charge regulator is a metal chromium salicylate.

[0040] First pour iron oxide yellow, ultraviolet fluorescent powder, polyester resin, polypropylene wax and charge regulator into a mixer, and mix evenly to make a mixture.

[0041] Then put the above-mentioned mixture into an extruder, extrude the above-mentioned mixture at a temperature of 150° C., and press it into a tablet.

[0042] Then, the flake mixture was cooled to 50°C and crushed into pieces.

[0043] Thereafter, the above fragments were pulverized by a pulverizer into pulverized powder having a particle diameter of 50 μm.

[0044] After that, use a pressure of 7kg / m 2 The above-mentioned crushed powder is air-pulverized in a fluidized bed pulverizer, cla...

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Abstract

The invention discloses a durability false-proof yellow carbon powder for the laser printer and its preparation method. It is made of 2~4 shares iron oxide yellow, 10~20 shares ultraviolet luminescent powder, 80~90 shares polyester resin, 2~8 shares polypropylene wax, 2~4 shares charge regulator, 1~3 shares dimethyldichlorosilane, and 6~7 shares hexamethyldisilazane, through mixing, extrusion, crushing and screening, to crank out. Using the durability false-proof yellow carbon powder for the laser printer to print color graphic and text, and yellow imprint, it is not only color durability good, to meet the long-time preservation requirement of the archive documentation, but also it can identify authenticity, with false-proof performance, so that false makers have no opportunities. It especially applies to print the imprint and archive documentation, such as signature, stamp, etc.

Description

technical field [0001] The invention relates to a carbon powder and a preparation method thereof. Specifically, it is durable anti-counterfeiting yellow toner for laser printers used to print archival graphic materials or anti-counterfeiting marks. Suitable for ordinary laser printers or color laser printers. Background technique [0002] With the advancement of science and technology, the level of office automation is getting higher and higher, and various archive documents including signatures and seals are gradually being automatically printed by laser printers instead of traditional manual operations. The use of laser printers to automatically print archival documents requires that the toner must have color durability. Only in this way can the long-term preservation requirements of archival documents be met. [0003] At present, the main component of yellow toner used in laser printers is organic pigments, and its color durability is poor. The yellow imprints and color...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03G9/08G03G9/097G03G9/09
Inventor 周学良
Owner 周学良
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