Colourless carbon powder for multicolour laser printer and method for making same

A laser printer, color technology, applied in the direction of optics, electrical recording, instruments, etc., can solve the problem that the set mark cannot reach colorless

Inactive Publication Date: 2011-04-20
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

[0003] The purpose of the present invention is to provide colorless toner for persistent encrypted security color laser printers, to overcome the defect that the colorless toner used in existing color laser printers can not meet the colorless requirements of the set marks printed, and It is beneficial to print out the file graphics and texts as colorless and long-term storage and encryption security

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Choose 3 kilograms of titanium dioxide, 18 kilograms of fluorescent powder, 2 kilograms of polypropylene wax, 1 kilogram of salicylic acid metal chromium complex charge regulator, and 78 kilograms of Wuxi Jiateng Magnetic Powder Co., Ltd. MND-1054 type polymer resin, 1 kg of dimethyldichlorosilane and 4 kg of hexamethyldisilazane, stand-by.

[0021] (2) The MND-1054 type macromolecule resin raw material produced by titanium dioxide, fluorescent powder, polypropylene wax, salicylic acid metal chromium complex charge regulator and Wuxi Jiateng Magnetic Powder Co., Ltd. was used in sequence by gradient feeding mixing method. Add it into the mixer step by step and mix it step by step to make a uniform mixture; knead the mixture for 5 minutes at a temperature of 90 ° C, and extrude it into a sheet-like mixture;

[0022] (3) The flaky mixture obtained in step (2) is cooled to 40° C. for coarse crushing, and then finely crushed in a jet mill through a fluidized air flow (t...

Embodiment 2

[0027] (1) Choose 6 kilograms of calcium carbonate, 20 kilograms of fluorescent powder, 5 kilograms of polypropylene wax, 3 kilograms of salicylic acid metal chromium complex charge regulator, 86 kilograms of Wuxi Jiateng Magnetic Powder Co., Ltd. MND-1054 type polymer resin, 4 kg of dimethyldichlorosilane and 7 kg of hexamethyldisilazane, stand-by.

[0028] (2) adopt the gradient feeding mixing method to successively make calcium carbonate, fluorescent powder, polypropylene wax, salicylic acid metal chromium complex charge regulator and the MND-1054 type macromolecular resin raw material produced by Wuxi Jiateng Magnetic Powder Co., Ltd., Add to the mixer step by step and mix step by step to make a uniform mixture; mix the mixture for 4 minutes at a temperature of 120°C and extrude it into a sheet-like mixture;

[0029] (3) The flaky mixture obtained in step (2) is cooled to 43° C. for coarse crushing, and then finely crushed through the fluidized air flow in the jet mill (th...

Embodiment 3

[0034] (1) Choose 10 kilograms of titanium dioxide, 32 kilograms of fluorescent powder, 8 kilograms of polypropylene wax, 5 kilograms of salicylic acid metal chromium complex charge regulator, 95 kilograms of Wuxi Jiateng Magnetic Powder Co., Ltd. MND-1054 type macromolecule resin, 6 kilograms of dimethyldichlorosilane and 10 kilograms of hexamethyldisilazane, stand-by.

[0035] (2) The raw materials of titanium dioxide, fluorescent powder, polypropylene wax, salicylic acid metal chromium complex charge regulator, and MND-1054 polymer resin produced by Wuxi Jiateng Magnetic Powder Co., Ltd. were sequentially separated by gradient feeding and mixing method. Add it into the mixer step by step, and mix it step by step to make a uniform mixture; mix the mixture for 3 minutes at a temperature of 150°C and extrude it into a sheet mixture;

[0036] (3) The flaky mixture obtained in step (2) is cooled to 45° C. for coarse pulverization, and then finely pulverized through a fluidized a...

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PUM

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Abstract

The invention relates to a lasting encrypted safety-type colorless toner for a color laser printer, and a preparation method thereof. Based on the weight portion of any material as the reference, 3-10 portions of titanium pigment or calcium carbonate, 18-32 portions of phosphor powder, 2-8 portions of polypropylene wax, 1-5 portions of salicylic acid metal chromium complex charge regulator, 78-95portions of MND-1054 polymer resin, 1-6 portions of dimethyldichlorosilane, and 4-10 portions of hexamethyldisilazane are mixed through gradient feeding, and then go through extrusion, fluidization airflow crushing, screening, classifying, surface modification, sieving and other steps to obtain the lasting encrypted safety-type colorless toner. The invention adopts the titanium pigment or calciumcarbonate to make the toner; the false-proof marks of pictures and texts doe not change color at a high temperature of 300 DEG C, and the false-proof marks of pictures and texts do not become vague at a lower temperature of -30 DEG C; the addition of the phosphor powder enables the false-proof marks to be identified in the ultra-violet light, so that the false-proof marks of pictures and texts can be permanently preserved without discoloration so as to achieve the encrypted and false-proof security effects.

Description

technical field [0001] The invention relates to a colorless toner for a color laser printer, in particular to a colorless toner for a color laser printer for printing color graphics, files, and red anti-counterfeiting seals with a color laser printer and a preparation method thereof. Background technique [0002] At present, the pigment component of the black toner used in ordinary color laser printers is magnetic powder, and its color is durable, while the components of red, blue, and yellow color toner are organic pigments, and the color preservation is poor. Color graphics and red and blue seals cannot guarantee the permanence of graphics. In order to solve the technical problem that the anti-counterfeiting marks of the archives graphics printed by the color laser printer are colorless, long-term preservation and encrypted security according to the requirements, researchers are constantly improving the toner used in laser printers, such as Chinese patent application No. ...

Claims

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Application Information

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