PAPER PRODUCTION METHOD Russian patent published in 2023 - IPC D21H17/67 D21H17/69 

Abstract RU 2801887 C1

FIELD: pulp and paper industry.

SUBSTANCE: invention can be used, for example, in the production of stationery types of paper. The paper production method includes preparing a composition for paper production from a filler and vegetable cellulose fibres, with a filler content in the amount of 1-50% of the dry weight of the fibres in the paper composition. The filler is pretreated with nanofiber cellulose by adding it to the filler slurry. As nanofiber cellulose, bacterial cellulose synthesized by the Komagataebacter (Gluconacetobacter) rhaeticus strain in an amount of 1-5% of the dry weight of the fibres in the paper composition is used.

EFFECT: strength of the paper is maintained at a high content of filler in it.

1 cl, 4 dwg, 2 ex

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RU 2 801 887 C1

Authors

Smirnova Ekaterina Grigorevna

Malyutina Darya Igorevna

Khripunov Albert Konstantinovich

Migunova Aleksandra Vladimirovna

Dates

2023-08-17Published

2022-07-11Filed