Preparation method and application method of anti-fake microspheres

A technology of microspheres and colors, applied in non-fiber pulp addition, papermaking, textiles and papermaking, etc., can solve the problems of high cost, complex synthesis process and equipment of anti-counterfeiting resin microspheres and fluorescent anti-counterfeiting point materials, and low yield, etc. To achieve the effect of improving the difficulty of imitation

Active Publication Date: 2012-03-21
内蒙古海驰创新中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a preparation method and application method of anti-counterfeiting microspheres, which is a preparation method and application method of anti-counterfeiting microspheres with extended performance, and overcomes the anti-counterfeiting functional balls or dots of the prio

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The first step, the configuration of raw materials

[0025] Weigh 0.5 grams of long-wave fluorescent blue anti-counterfeiting material, 0.5 grams of benzoyl peroxide, 82.5 grams of methyl acrylate and 17.5 grams of divinylbenzene;

[0026] The second step, the dissolution of raw materials

[0027] Dissolve the long-wave fluorescent blue anti-counterfeiting material and benzoyl peroxide weighed in the first step in the methyl acrylate and divinylbenzene weighed in the first step, and then pour the resulting mixed solution into 400 ml In the there-necked bottle of 1000 milliliters of the aqueous solution of polyvinyl alcohol and sodium dodecylbenzenesulfonate, wherein the mass percent concentration of polyvinyl alcohol and sodium dodecylbenzenesulfonate in the aqueous solution is the same as 1%;

[0028] The third step, synthesis reaction

[0029] Stir the liquid obtained in the second step, while heating to 45°C, then raise the temperature to 80°C in 1 hour, and keep t...

Embodiment 2

[0034] The first step, the configuration of raw materials

[0035] Weigh 0.85 grams of warm red anti-counterfeiting material, 0.5 grams of benzoyl peroxide, 82.5 grams of methyl acrylate and 17.5 grams of divinylbenzene;

[0036] The second step, the dissolution of raw materials

[0037] Dissolve the temperature-changing red anti-counterfeiting material and benzoyl peroxide weighed in the first step in the methyl acrylate and divinylbenzene weighed in the first step, and then pour the resulting mixed solution into 400 ml In the there-necked bottle of 1000 milliliters of the aqueous solution of polyvinyl alcohol and sodium dodecylbenzenesulfonate, wherein the mass percent concentration of polyvinyl alcohol and sodium dodecylbenzenesulfonate in the aqueous solution is the same as 1%;

[0038] The third step, synthesis reaction

[0039] Stir the liquid obtained in the second step, heat up to 45°C at the same time, then raise the temperature to 80°C in 1 hour, and keep the tempera...

Embodiment 3

[0044] The first step, the configuration of raw materials

[0045] Weigh 0.35 grams of infrared green anti-counterfeiting material, 0.5 grams of benzoyl peroxide, 82.5 grams of methyl acrylate and 17.5 grams of divinylbenzene;

[0046] The second step, the dissolution of raw materials

[0047] Dissolve the infrared green anti-counterfeiting material and benzoyl peroxide weighed in the first step in methyl acrylate and divinyl benzene weighed in the first step, and then pour the resulting mixed solution into 400 ml of In the there-necked bottle of 1000 milliliters of the aqueous solution of polyvinyl alcohol and sodium dodecylbenzene sulfonate, wherein the mass percentage concentration of polyvinyl alcohol and sodium dodecylbenzene sulfonate in aqueous solution is the same as 1%;

[0048] The third step, synthesis reaction

[0049] Stir the liquid obtained in the second step, heat up to 45°C at the same time, then raise the temperature to 80°C in 1 hour, and keep the temperat...

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PUM

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Abstract

The invention discloses a preparation method and application method of anti-fake microspheres and relates to a reagent which is added in paper pulp to prevent fake changes. The preparation method adopts a conventional chemical suspension copolymerization method and comprises the following steps: weighting raw materials, namely an anti-fake material, benzoyl peroxide, methyl acrylate and divinylbenzene in a weight ratio of (0.5-1.05):0.5:82.5:17.5, mixing and dissolving in an aqueous solution containing polyvinyl alcohol and sodium dodecyl benzene sulfonate, and performing a synthetic reaction to prepare an anti-fake microsphere product. The application method comprises: when paper-making raw materials are added, the anti-fake microspheres are added in a paper-making dosing tank, and the mixture is stirred evenly to perform the normal paper-making process production and prepare the finished anti-fake paper. In a month, the anti-fake characteristic range of the anti-fake microspheres used in the finished anti-fake paper is 5-100 times of the diameter of the original microspheres, thus the defects that in the existing anti-fake process, the finished product is easy in copying, the cost is high and the environment is polluted can be overcome.

Description

technical field [0001] The technical solution of the present invention relates to the agent for preventing fraudulent alteration added to pulp, specifically the preparation method and application method of anti-counterfeit microspheres. Background technique [0002] With the continuous development of anti-counterfeiting technology, new anti-counterfeiting materials continue to emerge. Due to the extensive use of anti-counterfeiting microspheres in the paper industry, anti-counterfeiting papers with various functions have emerged, such as fluorescent microsphere anti-counterfeiting paper, photochromic microsphere anti-counterfeiting paper, colored microsphere anti-counterfeiting paper and temperature-sensitive color-changing anti-counterfeiting paper; anti-counterfeiting Microspheres are also used in the manufacture of security inks. CN1594732 discloses the preparation and application of polymer resin anti-counterfeiting microspheres, and reports the preparation method of an...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F212/36C08F2/20D21H21/48
Inventor 董轶望李勇刚贾洪岭付合建吴万林沈玉强熊汗水曹鹏飞王建军
Owner 内蒙古海驰创新中心有限公司
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