Abstract
The present invention relates to a method for dewatering a web comprising microfibrillated cellulose, wherein the method comprises the steps of: providing a suspension comprising between 50 weight-% to 100 weight-% of microfibrillated cellulose based on total dry weight, forming a fibrous web of said suspension on a support wherein said web has a dry content of 1-25% by weight, applying a dewatering felt into direct contact with the fibrous web, conducting said fibrous web, arranged between said dewatering felt and said substrate, through a pressing equipment. The invention further relates to a film produced from said method.
Patent family as of 14.12.2023
US2021324580 AA Oct 21,2021 US20210292191 Nov 8,2019
US11619004BB Apr 4,2023 US20210292191 Nov 8,2019
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| Original language | English |
|---|---|
| Patent number | US11619004 B2 |
| IPC | D21F 3/88 |
| Priority date | 8/11/19 |
| Publication status | Published - 4 Apr 2023 |
| MoE publication type | H1 Granted patent |