WALLPAPERS WITH BACTERICIDE PROPERTIES Russian patent published in 2011 - IPC D21H27/20 D21H21/36 D21H19/36 C09J7/04 C09D5/14 

FIELD: construction.

SUBSTANCE: wallpapers have a base and a face and a reverse sides. A coating that contains an antibacterial agent is applied onto the face side of the base. The coating antibacterial agent is represented by silver nanoparticles. The coating is produced by mixing of a varnish and a carbon porous carrier with silver nanoparticles in specified amount. Silver nanoparticles size is 2-50 nm. The carbon porous carrier has specific density of 0.03-0.1 g/cm³, specific surface of 50-200 m²/g and pore size of 5-50 nm. The varnish is a water-based acrylic varnish or an alkyd varnish. The wallpaper base is made of paper or cloth. The face surface of wallpapers is made of paper, cloth, fabric fibres or polyvinyl chloride. The carbon porous carrier with silver nanoparticles is in powder form. Glue is applied onto the reserves side of wallpapers.

EFFECT: higher quality of wallpapers and simplified technology of their manufacturing.

14 cl