High absorbency lyocell fibers and method for producing same

High absorbency lyocell fibers are obtainable by hydrothermal treatment. The fibers can be treated with water at temperatures of at least about 60° C. to provide lyocell fibers that can be formed into a random fibrous plug having a mass of 2 g, a density of 0.4 g/cm3, and a diameter of 25 mm which h...

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1. Verfasser:	NGUYEN HIEN VU
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR FOMENTATION HUMAN NECESSITIES HYGIENE IMPREGNATING OR COATING OF PAPER LAUNDERING MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL NATURAL OR ARTIFICIAL THREADS OR FIBRES ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRODUCTION OF CELLULOSE PROSTHESES PULP COMPOSITIONS SPINNING TEXTILES TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TREATMENT OF TEXTILES OR THE LIKE TREATMENT OR PROTECTION OF EYES OR EARS 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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Zusammenfassung:	High absorbency lyocell fibers are obtainable by hydrothermal treatment. The fibers can be treated with water at temperatures of at least about 60° C. to provide lyocell fibers that can be formed into a random fibrous plug having a mass of 2 g, a density of 0.4 g/cm3, and a diameter of 25 mm which has a GAT Absorbency (at 15 min.) of at least about 3.7 g/g.