Anti-counterfeit ink power

A toner and phosphor technology, applied in the field of anti-counterfeiting toner, can solve the problems of single relative color, narrow spectral range, poor concealment, etc., and achieve the effect of increasing anti-counterfeiting strength, wide application and widening spectral range.

Inactive Publication Date: 2010-02-17
FOREVER TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

The contents of the above patents all use a single type of fluorescent powder, and the digital graphics printed with ultraviolet fluorescent anti-counterfeiting toner can be identified by the ultraviolet fluorescent lamps that

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] Take 70% of ordinary toner by weight, 15% of infrared colorful fluorescent powder with a particle size of 5-15 μm, and 15% of ultraviolet fluorescent powder with a particle size of 5-15 μm, and put them into the airflow mixer in proportion and stir for 4 minutes. Stir evenly and pack into products.

Embodiment 2

[0009] (1) Select 10% of infrared fluorescent powder by weight, 10% of ultraviolet fluorescent powder, 60% of polyester resin, 5% of polypropylene wax, 4% of charge regulator, 1% of hydrophobic silicon dioxide, and 10% of pigment ,stand-by;

[0010] (3) Pour infrared colorful fluorescent powder, ultraviolet fluorescent powder, polyester resin, polypropylene wax, charge regulator, and pigment into a high-speed mixer in sequence, and mix evenly to make a mixture;

[0011] (4) Put the above compound into a screw extruder, and extrude the compound into 20-30mm fragments at 120°C;

[0012] (5) Carry out pulverization and classification with a fluidized bed type airflow pulverization classifier to obtain a pulverized semi-finished product of 5-15 μm;

[0013] (6) Add hydrophobic silicon dioxide to the semi-finished crushed powder, and stir for 4 minutes with a high-speed mixer to obtain a finished product of anti-counterfeit toner.

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PUM

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Abstract

The invention relates to anti-counterfeit ink power which comprises common ink power, infrared colorful fluorescent powder and ultraviolet fluorescent powder and the like. The common ink power product, the infrared colorful fluorescent powder and the ultraviolet fluorescent powder are evenly stirred in an air current mixer in proportion, or the infrared colorful fluorescent powder and the ultraviolet fluorescent powder are taken as raw materials to be mixed with other raw materials in proportion, and the process of milling and melting method is adopted to prepare the anti-counterfeit ink power. The infrared colorful fluorescent powder and the ultraviolet fluorescent powder are added simultaneously, which can broaden spectral range. The image-text printed by the ink power can be viewed 3-6fluorescence under the irradiation of a laser light; and the ultraluminescent substances, namely, ultraviolet fluorescent powder can be displayed under the irradiation of a long-wave ultraviolet lamp.The detection method is simple and visual, can improve anti-counterfeiting effects and enhances the reliability of the information.

Description

technical field [0001] The present invention relates to an anti-counterfeit toner for electrostatic image development. Background technique [0002] At present, the graphic materials printed by ordinary toner have no particularity, and it is often difficult to distinguish the authenticity. In specific occasions, such as national defense, military, and economic fields, it is often necessary to identify the authenticity of printed materials. Therefore, the anti-counterfeiting technology of printed materials is also required. Chinese patent No. 200810024836.x is to put latex polymer resin, colored pigment, charge regulator, fluorescent powder, wax and other raw materials together, stir them evenly to make a mixed solution, and then use a spray dryer to dry them at 160 Spray the solution at a temperature of -300°C to make granular materials, then classify and screen the granular materials with airflow classification equipment, add external additives, and make them through unifo...

Claims

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Application Information

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IPC IPC(8): G03G9/097
Inventor 俎全高
Owner FOREVER TECH
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