CELLULOSE FIBRES

A method of producing cellulose fibres impregnated with metal nanoparticles, particularly silver nanoparticles. The method comprises swelling cellulose fibres in an aqueous alkali solution (e.g. NaOH (aq)). The swollen cellulose fibres are removed from the aqueous alkali solution and mixed with an a...

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Bibliographic Details
Main Authors KETTLEWELL, Graeme, DUFFY, Andrea
Format Patent
LanguageEnglish
French
German
Published 14.08.2019
Subjects
CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES
DISINFECTION, STERILISATION, OR DEODORISATION OF AIR
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
HUMAN NECESSITIES
HYGIENE
LAUNDERING
MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES
MEDICAL OR VETERINARY SCIENCE
METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL
TEXTILES
TREATMENT OF TEXTILES OR THE LIKE
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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Summary:A method of producing cellulose fibres impregnated with metal nanoparticles, particularly silver nanoparticles. The method comprises swelling cellulose fibres in an aqueous alkali solution (e.g. NaOH (aq)). The swollen cellulose fibres are removed from the aqueous alkali solution and mixed with an aqueous solution of a metal salt (e.g. AgNO3) and a polymer solution so as to impregnate the fibres with metal nanoparticles. The swollen cellulose fibres impregnated with metal nanoparticles are then removed from the solution. The invention further relates to the composition of cellulose fibres impregnated with metal nanoparticles and an absorbent material (e.g. wound dressing) comprising a blend of cellulose fibres impregnated with metal nanoparticles with at least one other type of fibre.
Bibliography:Application Number: EP20140777120