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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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  • Summary
  • 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 the discoloration resistance is strong, whether the whiteness meets the whiteness requirements of banknote paper, and whether they are used in We don't know the effect of banknote printing

Method used

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

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Embodiment 1

[0019] Prepare 300ml of silver-ammonia solution, take by weighing a certain amount of silver nitrate according to the initial content of silver as 1.8wt%, dissolve it in deionized water and stir, add ammoniacal liquor during the stirring process, until the aqueous solution changes from clarification to turbidity, and becomes clarification again, i.e. Obtain silver ammonia solution; disperse 30g of zirconium phosphate powder (average particle size of 7 μm) 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 2 hours, and filter , washed, and dried at 90°C for 4 hours, packed in an alumina crucible, placed in a muffle furnace, roasted at 1000°C for 2 hours, and cooled to room temperature naturally to obtain an inorganic antibacterial powder of zirconium phosphate loaded with silver and zinc, silver and The loading rates of zinc are 90% and 85%, respectively, the average part...

Embodiment 2

[0021] Prepare 300ml of silver nitrate aqueous solution, weigh a certain amount of silver nitrate according to the initial silver content of 1.8wt%, dissolve it in deionized water and stir until completely dissolved to obtain the silver nitrate aqueous solution; ) was dispersed in the prepared silver nitrate aqueous solution, zinc sulfate was added to the above solution according to the initial zinc content of 3wt%, stirred at a constant temperature for 5 hours, filtered, washed, and dried at 120°C for 2 hours, then packed in an alumina crucible, placed In a muffle furnace, calcined at 1000°C for 2 hours, and cooled naturally to room temperature to obtain an inorganic antibacterial powder of zirconium phosphate loaded with silver and zinc. The loading rates of silver and zinc were 85% and 80% respectively, and the average particle size was less than 9 μm. The whiteness is 80.

Embodiment 3

[0023] Prepare the silver complex aqueous solution that 300ml silver nitrate and monoethanolamine form, take by weighing silver nitrate of certain quality according to the initial content of silver as 1.8wt%, be dissolved in deionized water and stir, add monoethanolamine during stirring, treat that aqueous solution is by The clarification becomes turbid, and becomes clear again, that is, the silver complex aqueous solution formed by silver nitrate and monoethanolamine is obtained; In the complex aqueous solution, add zinc chloride to the above solution according to the initial zinc content of 4wt%, stir at a constant temperature for 4 hours, filter, wash, and dry at 100°C for 3 hours, put it in an alumina crucible, and place it in a muffle furnace In the process, calcined at 1000°C for 2 hours, and cooled naturally to room temperature to obtain inorganic antibacterial powders with silver and zinc loaded on zirconium phosphate. .

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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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