Silver-zinc zirconium phosphate composite germicide for paper money and preparation method thereof

A technology of compound antibacterial agent and zirconium phosphate, applied in the direction of adding inorganic compounds, paper, etc., to achieve the effect of no environmental pollution, high resistance to discoloration, and simple process

Active Publication Date: 2011-10-19
CHENGDU BANKNOTE PRINTING
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the patent discloses phosphate-based, silicate-based, and oxide-based inorganic antibacterial agents, whether the particle size of the antibacterial agents is uniform, whether th

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  • Silver-zinc zirconium phosphate composite germicide for paper money and preparation method thereof

Examples

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Example Embodiment

[0018] Example 1

[0019] Prepare 300ml silver ammonia solution, weigh a certain quality of silver nitrate according to the initial silver content of 1.8wt%, dissolve it in deionized water and stir, add ammonia during the stirring process, wait until the aqueous solution changes from clear to turbid, and then clear again, that is Obtain silver ammonia solution; Disperse 30g zirconium phosphate powder (average particle size of 7μm) in the prepared silver ammonia solution, add zinc nitrate to the above solution according to the initial zinc content of 2wt%, stir at constant temperature for 2h, and filter After washing and drying at 90℃ for 4h, it is placed in an alumina crucible, placed in a muffle furnace, baked at 1000℃ for 2h, and naturally cooled to room temperature to obtain an inorganic antibacterial powder of silver and zinc supported by zirconium phosphate. The loading rate of zinc is 90% and 85%, the average particle size is less than 9μm, and the whiteness is 84.

Example Embodiment

[0020] Example 2

[0021] Prepare 300ml silver nitrate aqueous solution, weigh a certain mass of silver nitrate according to the initial silver content of 1.8wt%, dissolve it in deionized water and stir until it is completely dissolved to obtain silver nitrate aqueous solution; add 30g zirconium phosphate powder (average particle size of 7μm) 1) Disperse in the prepared silver nitrate aqueous solution, add zinc sulfate to the above solution according to the initial zinc content of 3wt%, stir at constant temperature for 5h, filter, wash, and dry at 120°C for 2h, then place it in an alumina crucible, In a muffle furnace, calcined at 1000°C for 2 hours and naturally cooled to room temperature to obtain an inorganic antibacterial powder of silver and zinc supported by zirconium phosphate. The loading rates of silver and zinc are 85% and 80%, respectively, and the average particle size is less than 9μm. The whiteness is 80.

Example Embodiment

[0022] Example 3

[0023] Prepare 300ml of silver complex aqueous solution formed by silver nitrate and monoethanolamine, weigh a certain mass of silver nitrate according to the initial silver content of 1.8wt%, dissolve it in deionized water and stir, add monoethanolamine during the stirring process, and wait until the aqueous solution is changed from The clarification becomes turbid, and then becomes clarified, that is, the silver complex aqueous solution formed by silver nitrate and monoethanolamine is obtained; 30g of zirconium phosphate powder (average particle size is 7μm) is dispersed in the silver formed by silver nitrate and monoethanolamine In the complex aqueous solution, zinc chloride was added to the above solution according to the initial zinc content of 4wt%, stirred at constant temperature for 4 hours, filtered, washed, and dried at 100°C for 3 hours, then placed in an alumina crucible and placed in a muffle furnace In the medium, calcined at 1000 ℃ for 2 hours, a...

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Abstract

The invention discloses a silver-zinc zirconium phosphate composite germicide for paper money and a preparation method thereof; the germicide takes laminar zirconium phosphate as a carrier, and is loaded with mono-valence silver ions and zinc ions; the grain size of the germicide is uniform and is smaller than 9 microns; the whiteness and the discoloration durability are high and the antiseptic performance is good; and the germicide is suitable for the field of paper money printing. The manufacturing steps of the germicide are as follows: adding zirconium phosphate powder and soluble zinc salt into a prepared silver ion solution, filtering, washing, drying, burning and crushing the solution after reaction. The method has a simple process and is easy to perform industrial production is free from by-products and has no pollution to the environment.

Description

technical field [0001] The invention relates to a silver-loaded inorganic antibacterial agent, in particular to a silver-loaded inorganic antibacterial agent used in the field of banknote printing. Background technique [0002] Silver-loaded inorganic antibacterial materials are widely used in the fields of building materials, textiles, printing and dyeing, and plastic products due to their advantages such as good heat resistance, broad antibacterial spectrum, long effective antibacterial period, low toxicity, and no drug resistance. [0003] With the in-depth research on silver-loaded inorganic antibacterial agents at home and abroad, the types and properties of silver-loaded inorganic antibacterial agents are also being continuously developed and improved, and their application range is becoming wider and wider, and the market is also increasing. Although the research and development of antibacterial materials based on non-metallic minerals started late in my country and p...

Claims

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Application Information

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IPC IPC(8): D21H21/36D21H17/66
Inventor 魏基忠张小丽曾和银白昱马光举
Owner CHENGDU BANKNOTE PRINTING
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