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US 12,397,499 B2Granted
Three-dimensional printing antimicrobial products
AssigneeThe Hong Kong Polytechnic University
InventorsKwan Yu Lo, Chi Wai Kan
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Abstract
A method of preparing antimicrobial 3D-printed material with antimicrobial agents integrated with the 3D-printed material. The 3D-printed material fabricated with the method of the present disclosure includes antimicrobial agent (s) fully integrated throughout the product and display antimicrobial effect throughout the product, which is resistant to daily wear and tear.
Claims7
A method of preparing antimicrobial 3D-printed material, comprising the steps of:
- a) mixing an antimicrobial agent with a 3D printing resin to form a mixture;
- b) transforming the mixture through digital light processing in a 3D printer;
- and
- c) printing the material;
- wherein the antimicrobial agent comprises solid polyhexamethylene biguanide (PHMB);
- wherein a mixing agent is added during the mixing step;
- wherein the mixing agent is 99% ethanol, the mixing agent is added in an amount in the weight ratio of 1:1 of the antimicrobial agent, and the antimicrobial agent is provided in 0.25-1% by weight of the resin;
- and
- wherein the resin is ABS based UV sensitive resin.
6 more elements
Dependencies are inferred from the claim text.