FIBRILLATED, CHEMICALLY MODIFIED CELLULOSE FIBER

• Main Authors: GOTO SHISEI, NAKADA SAKIKO, TAKAYAMA MASAHITO, TAKAHASHI YUKI, SUZUKI HIROYOSHI
• Format: Patent
• Language: English; Japanese
• Published: 05.03.2024
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; DERIVATIVES THEREOF; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; IMPREGNATING OR COATING OF PAPER; LAUNDERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; POLYSACCHARIDES; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; 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

To provide a fibrillated, chemically modified cellulose fiber used as a papermaking additive and having a lower fibrillation degree than cellulose nanofiber.SOLUTION: A fibrillated, chemically modified cellulose fiber used as a papermaking additive has a cellulose I-type crystallinity of 50% or over, an anion conversion degree of 0.10 meq/g or over and 2.00 meq/g or under, an average fiber diameter of 10 μm or over, an aspect ratio of 10-100, and a water retention property of 15 or over.SELECTED DRAWING: None 【課題】セルロースナノファイバーよりも解繊の程度が低い、製紙用添加剤の用途に用いられるフィブリル化された化学変性セルロース繊維を提供する。【解決手段】セルロースＩ型の結晶化度が５０％以上であり、アニオン化度が０．１０ｍｅｑ／ｇ以上２．００ｍｅｑ／ｇ以下であり、平均繊維径が１０μｍ以上であり、アスペクト比が１０～１００であり、保水能が１５以上である、製紙用添加剤の用途に用いられるフィブリル化された化学変性セルロース繊維。【選択図】なし