Anti-counterfeiting stamp-pad ink and preparation method thereof
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Embodiment 1
[0043] a. Mix and stir 8.75kg butanol, 7.5kg butanone, 6.25kg propylene glycol methyl ether acetate, and 2.5kg triethylene glycol ether to obtain a mixed solvent, which is ready for use;
[0044] b. Add 12.5kg of mixed solvent into the reaction kettle, heat it to a constant temperature of 60°C, and add 1.25kg of ethyl cellulose with a molecular weight of 4000-9000, 1.25kg of polyvinyl butyral resin, 2kg of alkyd resin, Add 0.5kg of polyurethane resin to the reaction kettle one by one, wait for it to dissolve completely, continue stirring at constant temperature for 2.5 hours, and cool to room temperature to obtain a resin solution;
[0045] c. Take 1 / 10 of the mass of the resin solution and mix it with 6.25kg of mixed solvent evenly, add 7kg of infrared fluorescent material and 1kg of iron red into the mixed solution and inject it into the grinder to grind for 1.5h to obtain the color paste;
[0046] d. Add the remaining resin liquid, the remaining mixed solvent, 0.05kg of 2,6...
Embodiment 2
[0048] a. 10.4kg of isopropanol, 6.5kg of N-ethylpyrrolidone, 5.2kg of ethyl acetate, and 3.9kg of glycol ether were mixed and stirred evenly to obtain a mixed solvent;
[0049] b. Add 13kg of mixed solvent into the reaction kettle, heat it to a constant temperature of 55°C, and add 1.2kg of ethyl cellulose with a molecular weight of 4000-9000, 1kg of polyvinyl butyral resin, 1.2kg of alkyd resin, 0.6 kg polyurethane resin was added to the reaction kettle, until it was completely dissolved, continued to stir for 4 hours, and cooled to room temperature to obtain a resin solution;
[0050] c. Take 1 / 10 of the mass of the resin solution and mix it with 6.5kg of mixed solvent evenly, add 6kg of ultraviolet fluorescent material into the mixed solution and inject it into the grinder for grinding for 2 hours to obtain the color paste;
[0051] d. Add the remaining resin liquid, the remaining mixed solvent, 0.04kg of 2,6-di-tert-butyl-4-methylphenol, and 0.6kg of silicone-modified sur...
Embodiment 3
[0053] a. Mix and stir 7.2kg propanol, 8.4kg N-ethylpyrrolidone, 7.2kg amyl acetate, and 1.2kg triethylene glycol ether to obtain a mixed solvent;
[0054] b. Take 12kg of mixed solvent and add it to the reaction kettle, heat it to a constant temperature of 65°C, and mix 1.2kg of nitrocellulose with a molecular weight of 4000-9000, 1.8kg of polyvinyl alcohol resin, 2.7kg of acrylic resin and 0.3kg of polyurethane resin under stirring Add it into the reaction kettle, wait for it to dissolve completely, continue to stir for 3 hours, and cool to room temperature to obtain a resin solution;
[0055] c. Take 1 / 10 of the mass of the resin solution and mix it with 6kg of mixed solvent evenly, add 8kg of viewing angle color-changing material and 0.5kg of orange GGL into the mixed solution, then inject it into the grinder and grind for 1 hour to obtain the color paste;
[0056] d. Add the remaining resin liquid, the remaining mixed solvent, 0.06kg of 2,6-di-tert-butyl-4-methylphenol, a...
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