Method for the production of a film comprising microfibrillated cellulose, a film and a paper or paperboard product

The present invention relates to a method for the production of a film comprising microfibrillated cellulose, wherein the method comprises the steps of; providing a suspension comprising between 70 weight-% to 100 weight-% of microfibrillated cellulose based on total dry weight, forming a fibrous web of said suspension, drying the web in a drying equipment wherein the web is at least partly dried at a drying rate above 75 kg(H2O)/m2/h by use of hot air whereby a film is formed. The invention also relates to a film produce according to the method and a paper or paperboard substrate comprising said film.Patent family as of 14.12.2023US2019226146 AA Jul 25,2019 US20190337130Sep 27,2017US11105045 BBAug 31,2021 US20190337130Sep 27,2017WO18060868 A1Apr 5,2018  WO20171B55880Sep 27,2017EP3519624 A1Aug 7,2019 EP20170855114Sep 27,2017EP3519624 A4May 6,2020 EP20170855114Sep 27,2017BR112019006189 A2 Jun 18,2019 BR20191106189Sep 27,2017BR112019006189 B1 Jan 24,2023 BR20191106189Sep 27,2017CA3035316 AAFeb 27,2019 CA2017303531 6Sep 27,2017CN109715883 AMay 3,2019 CN201780056685Sep 27,2017CN109715883 BFeb 11,2022 CN201780056685Sep 27,2017JP2019529733 T2Oct 17,2019 JP20190516498TSep 27,2017JP7116049 B2Aug 9,2022 JP20190516498TSep 27,2017SE201651272 A1Mar 29,2018 SE20160051272Sep 28,2016SE540365 C2Aug 14,2018 SE20160051272Sep 28,2016</p