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Oxidation resisting platy silver powder and preparation method thereof
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A flaky silver powder and anti-oxidation technology, which is applied in the field of flaky silver powder and its preparation, can solve the problems of affecting anti-counterfeiting performance, flaky silver powder is easy to oxidize, etc., and achieve the effect of improving anti-oxidation performance
Active Publication Date: 2011-09-14
CHENGDU BANKNOTE PRINTING
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Summary
Abstract
Description
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problem that the existing flaky silver powder is easy to oxidize and affect the anti-counterfeiting performance, provide an anti-oxidation flaky silver powder and its preparation method, and improve the safety and aesthetics of using the flaky silver powder to make anti-counterfeiting latent images
Method used
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Experimental program
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Effect test
Embodiment 1
[0051] Its content of the antioxidative flaky silver powder is specifically:
[0052] 6-8 micron flake silver powder 10 kg
[0053] 10 liters of high-purity water
[0054] Silver protectant 200g
[0055] Its preparation method is as follows:
[0056] a. Measure 10 liters of high-purity water, put the above-mentioned high-purity water in a container, and heat to 80°C;
[0057] b. Weigh 10 kg of flaky silver powder and 200 grams of silver protectant (EZ-AGII water-soluble silver protectant from Shenzhen Erzhen Technology Co., Ltd.) and place them in the above container;
[0058] c. Fully stir after soaking for 1 hour;
[0059] d. Pour the aqueous solution of the above-mentioned flaky silver powder into 5 drying trays, and set the oven temperature to 80°C;
[0060] e. Obtain anti-oxidation flaky silver powder after drying.
Embodiment 2
[0061] Embodiment 2: Its content of the flaky silver powder of described antioxidation is specifically:
[0062] 6-8 micron flake silver powder 10 kg
[0063] 10 liters of high-purity water
[0064] Silver Protectant 300g
[0065] Its preparation method is as follows:
[0066] a. Measure 10 liters of high-purity water, put the above-mentioned high-purity water in a container, and heat to 80°C;
[0067] b. Weigh 10 kg of flaky silver powder and 300 grams of silver protectant (EZ-AGII water-soluble silver protectant from Shenzhen Erzhen Technology Co., Ltd.) and place them in the above container;
[0068] c. Fully stir after soaking for 1 hour;
[0069] d. Pour the aqueous solution of the above-mentioned flaky silver powder into 5 drying trays, and set the oven temperature to 80°C;
[0070] e. Obtain anti-oxidation flaky silver powder after drying.
Embodiment 3
[0072] Its content of the antioxidative flaky silver powder is specifically:
[0073] 6-8 micron flake silver powder 10 kg
[0074] 10 liters of high-purity water
[0075] Silver Protectant 400g
[0076] Its preparation method is as follows:
[0077]a. Measure 10 liters of high-purity water, put the above-mentioned high-purity water in a container, and heat to 80°C;
[0078] b. Weigh 10 kg of flaky silver powder and 400 grams of silver protectant (EZ-AGII water-soluble silver protectant from Shenzhen Erzhen Technology Co., Ltd.) and place them in the above container;
[0079] c. Fully stir after soaking for 1 hour;
[0080] d. Pour the aqueous solution of the above-mentioned flaky silver powder into 5 drying trays, and set the oven temperature to 80°C;
[0081] e. Obtain anti-oxidation flaky silver powder after drying.
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Abstract
The invention discloses oxidation resisting platy silver powder and a preparation method thereof, relates to the platy silver powder and aims to solve the problem that the conventional silver powder is easy to oxidize so the anti-counterfeiting performance is influenced. The oxidation resisting platy silver powder comprises the following components: 6-to-8-micron platy silver powder, high-purity water and a silver protective agent; the content ratio of the platy silver powder to the high-purity water is 1 kilogram / 1liter; the content ratio of the silver protective agent to the platy silver powder is 20 to 50 grams / 1kilogram; the preparation method comprises the following steps of: a, taking the high-purity water in a ratio, placing the high-purity water in a container, and heating to 80 DEG C; b, weighing the platy silver powder and the silver protective agent in the ratio and placing in the container; c, soaking for one hour and then fully stirring; d, pouring the aqueous solution of the platy silver powder into a plurality of drying disks, wherein the temperature of a drying oven is set to be 80 DEG C; and e, after drying, obtaining the oxidation resisting platy silver powder.
Description
technical field [0001] The invention relates to a flake silver powder and a preparation method thereof, belonging to an important research field of metalpowder metallurgy. Background technique [0002] Anti-oxidation flake silver powder is a latent image anti-counterfeiting functional material, which overcomes the technical bottleneck of easy oxidation and discoloration of flake silver powder. Antioxidant silver powder is mainly used in metal inks of various banknotes, securities, licenses, bills and other valuable securities. Using the metallic luster of antioxidative flaky silver powder can improve the high-grade and beautiful appearance of printed products. It can be used in light perspective situations. Under this condition, the pattern hidden in the base will be displayed, while the latent image hidden in the base pattern will not be displayed, so as to achieve the purpose of anti-counterfeiting. By using the metal ink made of anti-oxidation flake silver powder, the p...
Claims
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Application Information
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