A preparation method of tipping paper water-based ink containing silver-loaded chitosan composite antibacterial material
A water-based ink, compound antibacterial technology, used in inks, household appliances, applications, etc., can solve the problems of limited bactericidal effect, fast drying speed, general dispersibility, etc., and achieve excellent bacteriostatic ability and uniform distribution.
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Embodiment 1
[0038] A kind of preparation method of the tipping paper water-based ink that contains silver-loaded chitosan composite antibacterial material is carried out as follows, wherein the following parts of each material are parts by weight,
[0039] (1) Preparation of silver-loaded chitosan:
[0040] Take 10 parts of nano-chitosan and add it to 100 parts of deionized water and stir until dissolved, then add 10 parts of silver nitrate to the chitosan solution, stir evenly, add dilute nitric acid aqueous solution dropwise until the pH of the solution is 3-4, Then stir and heat in a water bath at 60°C for 3 hours under the condition of avoiding light, then centrifuge the suspension successively, wash the solid matter and dry it in vacuum, take 10 parts of the above solid matter and 0.5 part of sodium borohydride and add them to 0.01mol / L Add deionized water to the aqueous sodium hydroxide solution to adjust the pH to 7.5-8, and finally stir and centrifuge to collect the solid, wash an...
Embodiment 2
[0055] A kind of preparation method of the tipping paper water-based ink that contains silver-loaded chitosan composite antibacterial material is carried out as follows, wherein the following parts of each material are parts by weight,
[0056] (1) Preparation of silver-loaded chitosan:
[0057] Take 10 parts of nano-chitosan and add it to 100 parts of deionized water and stir until dissolved, then add 10 parts of silver nitrate to the chitosan solution, stir evenly, add dilute nitric acid aqueous solution dropwise until the pH of the solution is 3-4, Then stir and heat in a water bath at 60°C for 3 hours under the condition of avoiding light, then centrifuge the suspension successively, wash the solid matter and dry it in vacuum, take 10 parts of the above solid matter and 0.5 part of sodium borohydride and add them to 0.01mol / L Add deionized water to the aqueous sodium hydroxide solution to adjust the pH to 7.5-8, and finally stir and centrifuge to collect the solid, wash an...
Embodiment 3
[0074] A kind of preparation method of the tipping paper water-based ink that contains silver-loaded chitosan composite antibacterial material is carried out as follows, wherein the following parts of each material are parts by weight,
[0075] (1) Preparation of silver-loaded chitosan:
[0076] Take 10 parts of nano-chitosan and add it to 100 parts of deionized water and stir until dissolved, then add 10 parts of silver nitrate to the chitosan solution, stir evenly, add dilute nitric acid aqueous solution dropwise until the pH of the solution is 3-4, Then stir and heat in a water bath at 60°C for 3 hours under the condition of avoiding light, then centrifuge the suspension successively, wash the solid matter and dry it in vacuum, take 10 parts of the above solid matter and 0.5 part of sodium borohydride and add them to 0.01mol / L Add deionized water to the aqueous sodium hydroxide solution to adjust the pH to 7.5-8, and finally stir and centrifuge to collect the solid, wash an...
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