ANTIMICROBIAL NONWOVEN POLYAMIDES WITH ZINC CONTENT

• Main Authors: YUNG, WAI-SHING, ORTEGA, ALBERT, OSBORN, SCOTT E
• Format: Patent
• Language: English; French
• Published: 17.10.2023
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; BRAIDING; CHEMISTRY; COMPOSITIONS BASED THEREON; COTTON-WOOL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; METALLURGY; NON-WOVEN FABRICS; ORGANIC MACROMOLECULAR COMPOUNDS; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRAPPING; TRIMMINGS; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WADDING

The present disclosure relates to a nonwoven polyamide structure having antimicrobial properties comprising: nonwoven polyamide fibers comprising less than 4000 ppm zinc dispersed within the nonwoven polyamide fibers; and less than 2000 ppm phosphorus. The fibers have an average fiber diameter of less than 25 microns; and the polyamide structure demonstrates a Staphylococcus Aureus reduction of at least 90%, as measured by ISO 20743-13. La présente invention concerne une structure de polyamides non tissés ayant des propriétés antimicrobiennes comprenant : des fibres de polyamides non tissés comprenant moins de 4 000 ppm de zinc dispersées dans les fibres de polyamides non tissés; et moins de 2 000 ppm de phosphore. Les fibres ont un diamètre moyen de fibre inférieur à 25 microns; et la structure de polyamides présente une réduction de Staphylococcus Aureus d'au moins 90 %, telle que mesurée par ISO 20743-13.