Process for producing paper or board and a product thereof
Number of patents in Portfolio can not be more than 2000
United States of America
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Feb 4, 2025
Grant Date -
Mar 24, 2022
app pub date -
May 22, 2019
filing date -
May 22, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention provides a process for producing paper or board, comprising slushing a stock of dried fibres in a slushing system comprising a pulper, and/or feeding a stock of never-dried fibres in a fiber line of an integrated paper mill; deflaking and/or refining the stock in a deflaker and/or a refiner, optionally diluting the deflaked and/or refined stock, directing the deflaked and/or refined stock to a headbox, forming a web, and drying the web, wherein a polymeric paper making additive is added to one or more of the stocks of dried fibres and never-dried fibres before deflaking and/or refining of the stock. The present invention further provides paper and board with improved properties.
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