Substrates with biocidal properties and process for making them

Details Substrates with biocidal properties and process for making them Substrates with biocidal properties and process for making them

D - Textiles, Paper

06

M

D06M 16/00 (2006.01) A01N 25/34 (2006.01) A01N 59/16 (2006.01) A61L 15/46 (2006.01) D06M 11/83 (2006.01) D06M 15/03 (2006.01) D06M 15/17 (2006.01) D21H 21/36 (2006.01)

Patent

CA 2363007

The invention relates to a process for treating a substrate to impart biocidal properties to the substrate by depositing or impregnating the substrate with solubilised chitosan, immersing the substrate in a solution of a silver salt, treating the substrate to reduce the silver salt to atomic/metallic silver, cross-linking the chitosan and washing the resultant treated substrate. The invention also relates to biocidal substrates when prepared by this process and to the use of such biocidal substrates for the manufacture of garments, dressings and protective drapes suitable for medical and veterinary use.

L'invention concerne un procédé de traitement d'un substrat permettant de transmettre les propriétés biocides au substrat en formant un dépôt sur ce-dernier ou en l'imprégnant avec du chitosane solubilisé, en immergeant ledit substrat dans une solution de sels d'argent, à le traiter pour réduire les sels d'argent en argent atomique/métallique, en réticulant le chitosane, et en lavant le substrat traité résultant. Cette invention concerne également des substrats biocides préparés selon ce procédé, et l'utilisation de tels substrats dans la fabrication de vêtements, de pansements, et de tentures de protection appropriées à l'usage médical et vétérinaire.

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