MIXED FIBER STRUCTURE

• Main Authors: TOKUTAKE YUSUKE, YAMAGUCHI HARUTO, HARA YUICHI
• Format: Patent
• Language: English; Japanese
• Published: 16.05.2022
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; BRAIDING; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; COTTON-WOOL; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; KNITTING; LACE-MAKING; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; NON-WOVEN FABRICS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; PROSTHESES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS; TEXTILES; TREATMENT OR PROTECTION OF EYES OR EARS; TRIMMINGS; WADDING

To provide a mixed fiber structure high in strength when wetting while keeping high liquid-absorbing property, excellent in handling performance, and having excellent followability to a wound because of a small area change rate under a wet state.SOLUTION: A mixed fiber structure is a mixed fiber structure including: a first fiber composed of a carboxymethyl cellulose fiber where carboxymethyl groups are partially protonated; and a second fiber composed of a natural or regenerated cellulose fiber, where the content of the first fiber contained in the mixed fiber structure is 55 mass% or more and 90 mass% or less, the content of the second fiber contained in the mixed fiber structure is 10 mass% or more and 45 mass% or less, and the average substitution degree of a hydroxyl group in a glucose unit constituting the first cellulose is 0.2 or higher and 0.8 or lower. Also provided are a wound-covering material, and a moistening cosmetic material containing the mixed fiber structure.SELECTED DRAWING: None 【課題】高い吸液性を保持しながら、湿潤時の強度が高く取扱い性に優れ、湿潤状態での面積変化率が小さいため傷口に対して優れた追従性を有する混合繊維構造体の提供。【解決手段】カルボキシメチル基が部分的にプロトン化されたカルボシキメチルセルロース（ＣＭＣ）繊維からなる第一繊維と、天然又は再生セルロース繊維からなる第二繊維とを含む混合繊維構造体であって、該混合繊維構造体に含まれる該第一繊維の含有量が５５質量％以上９０質量％以下であり、該混合繊維構造体に含まれる該第二繊維の含有量が１０質量％以上４５質量％以下であり、かつ、該第一繊維のセルロースを構成するグルコース単位中の水酸基の平均置換度が０．２以上０．８以下である、前記混合繊維構造体、並びに該混合繊維構造体を含む創傷被覆材及び湿潤美容材。【選択図】なし