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US 9,850,352 B2Granted
Fine cellulose fiber dispersion liquid and manufacturing method thereof, cellulose film and laminate body
AssigneeToppan Printing Co., Ltd.
InventorsAkiko Saiki, Yumiko Oomori
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Abstract
A method of manufacturing a fine cellulose fiber dispersion liquid includes: an oxidation process in which a cellulose is subjected to an oxidation treatment to obtain an oxidized cellulose; and a dispersion process in which the oxidized cellulose obtained in the oxidation process is subjected to a dispersion treatment in a water-based medium in which a pH thereof is adjusted to 4 to 12 using either an ammonia water or an organic alkali to obtain the fine cellulose fiber dispersion liquid.
Claims7
A method of manufacturing a fine cellulose fiber dispersion liquid, comprising:
- an oxidation process in which a cellulose is subjected to an oxidation treatment to obtain an oxidized cellulose having a carboxyl group:
- and
- a dispersion process in which the oxidized cellulose obtained in the oxidation process is subjected to a dispersion treatment in a water-based medium in which a pH thereof is adjusted to greater than 7 to 12 using either an ammonia water or an organic alkali to obtain the fine cellulose fiber dispersion liquid.
Dependencies are inferred from the claim text.