SHEET CONTAINING DERIVATIVE FUNCTIONAL GROUP-DETACHED CELLULOSE FINE FIBERS

To provide a sheet containing fine fibers, preventing aggregation of cellulose fine fibers, elevating uniformity and suppressing use amounts to minimum, and elevating compactness of the membrane.SOLUTION: The sheet contains derivative functional group-detached cellulose fine fibers having average fi...

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Bibliographische Detailangaben
Hauptverfasser: NAKATSUBO TOMOFUMI, KUBO JUNICHI, TAJIMA HIROKUNI, TSUKUDA NORIAKI, MASAKIYO KOICHI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a sheet containing fine fibers, preventing aggregation of cellulose fine fibers, elevating uniformity and suppressing use amounts to minimum, and elevating compactness of the membrane.SOLUTION: The sheet contains derivative functional group-detached cellulose fine fibers having average fiber diameter of 3 nm or higher and 300 nm or lower; wherein the fine fibers of cellulose derivative are converted to cellulose derivatives which are difficult to aggregate until forming into a sheet, and after forming into a sheet, functional groups are detached from the cellulose derivatives to elevate affinity between fine fibers.SELECTED DRAWING: None 【課題】セルロース微細繊維の凝集を防いで均一性を高めて使用量を最低限に抑制しつつ、膜の緻密性を高めた微細繊維含有シートを得る。【解決手段】セルロース誘導体の微細繊維を、シートにするまでは凝集しにくいセルロース誘導体とし、シートにしてしまえば微細繊維間の親和性が高まるようにセルロース誘導体から官能基を脱離させた、平均繊維径が3nm以上300nm以下である誘導体官能基脱離セルロース微細繊維を含有するシートにする。【選択図】なし