MICROFILAMENT-LIKE CELLULOSE, DISPERSION LIQUID, SHEET, AND METHOD FOR PRODUCING MICROFILAMENT-LIKE CELLULOSE

To provide a microfilament-like cellulose that can, when used for a dispersion liquid or a sheet, increase transparency and inhibit coloring.SOLUTION: The present invention pertains to a microfilament-like cellulose that has a fiber width of 1-10 nm and has an amount of introduced substituents less...

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Hauptverfasser: SUGIYAMA IKUE, MATSUBARA YUSUKE
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a microfilament-like cellulose that can, when used for a dispersion liquid or a sheet, increase transparency and inhibit coloring.SOLUTION: The present invention pertains to a microfilament-like cellulose that has a fiber width of 1-10 nm and has an amount of introduced substituents less than 0.5 mmol/g. The present invention also pertains to a dispersion liquid and a sheet that contain the microfilament-like cellulose. The present invention further pertains to a method for producing the microfilament-like cellulose, the method comprising: a step (A) of removing, from a microfilament-like cellulose having substituents and having a fiber width of 1000 nm or less, at least a portion of the substituents; and, after the step (A), a step (B) of performing a uniform dispersion treatment.SELECTED DRAWING: None 【課題】本発明は、分散液やシートとした際に、透明性を高め、かつ着色を抑制し得る微細繊維状セルロースを提供することを課題とする。【解決手段】本発明は、置換基導入量が0.5mmol/g未満であり、繊維幅が1〜10nmである、微細繊維状セルロースに関する。また、本発明は、微細繊維状セルロースを含む分散液及びシートに関する。さらに、本発明は、置換基を有し、かつ繊維幅が1000nm以下の微細繊維状セルロースから、前記置換基の少なくとも一部を除去させる工程(A)と、工程(A)の後に、均一分散処理する工程(B)と、を含む、微細繊維状セルロースの製造方法に関する。【選択図】なし