Process of making antibacterial coating and antibacterial paper with same, and antibacterial paper
AssigneeNingbo Asia Pulp & Paper Co., Ltd.
InventorsShu-Hua Bai, Jun-Ming Wang, Ji-Ping Quan, Meng-Huai Ran, Wei He
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Abstract
Process for making an antibacterial coating includes the following steps. A solution containing titanium dioxide particles and a dispersant is prepared. A mechanical stirring method is employed to prepare a preliminary titanium dioxide dispersed solution. An ultrasonic agitation method is employed to prepare a nanometer titanium dioxide dispersed solution, an average particle size of the titanium dioxide particles being less than or equal to 200 nanometers. Lastly, the nanometer titanium dioxide dispersed solution is mixed with a papermaking coating to prepare an antibacterial coating.
Claims8
A method of making an antibacterial coating, the method comprising:
- preparing a mixed solution containing titanium dioxide particles and a dispersant;
- beating and breaking up the titanium dioxide particles in the mixed solution by mechanical stirring to prepare a preliminary titanium dioxide dispersed solution;
- further beating and breaking up the titanium dioxide particles in the preliminary titanium dioxide dispersed solution by ultrasonic agitation to prepare a titanium dioxide dispersed solution with an average particle size of the titanium dioxide particles being less than or equal to 200 nanometers;
- and
- mixing the titanium dioxide dispersed solution with papermaking coating to prepare an antibacterial coating with the titanium dioxide particles uniformly dispersed therein, the mass percentage of the titanium dioxide particles in the antibacterial coating being more than or equal to 5% of the mass of the antibacterial coating.
Dependencies are inferred from the claim text.