CPC D06M 11/46 (2013.01) [D06M 10/001 (2013.01); D06M 10/06 (2013.01); D06M 10/08 (2013.01); D06M 11/38 (2013.01); D06M 13/144 (2013.01); D06M 13/188 (2013.01); D06M 2101/06 (2013.01)] | 7 Claims |
1. A method for making an antimicrobial article from a woven cotton textile, the method comprising:
contacting the woven cotton textile with an inorganic base to produce a treated cotton textile;
rinsing the treated cotton textile to produce a rinsed cotton textile;
depositing a TiO2 coating composition onto the rinsed cotton textile, wherein the TiO2 coating composition contains TiO2 nanoparticles, methanol, and an organic acid, and the depositing forms a coated textile, wherein the TiO2 coating composition fully coats the cotton textile during the depositing and the TiO2 coating composition contains 60-90 wt % of the organic acid and 10-40 wt % of the methanol relative to a total weight of the TiO2 coating composition;
irradiating the coated textile with a UV light to form an antimicrobial textile, wherein the irradiating forms hydrogen bonds between the TiO2 nanoparticles and surfaces of individual fibrils of the cotton textile; and
forming a bandage, a cast, a gown, a lab coat, a mask, a face covering, a bedcovering, or a head covering from the antimicrobial textile to make the antimicrobial article;
wherein the TiO2 coating composition contains the TiO2 nanoparticles at a concentration of 10-100 ppm by weight, and the TiO2 nanoparticles are anatase TiO2 nanoparticles having an average particle diameter of less than 21 nm.
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