Abstract: An air-laid blank (10) comprises natural fibers and a polymer binder. The air-laid blank (10) comprises multiple portions (11) having a local fiber orientation distribution that is different from a fiber orientation distribution of a remaining portion (13) of the air-laid blank (10). The air-laid blank (10) can be used to produce sound absorbing or damping articles (20). The invention also relates to methods and apparatuses (100) for producing such air-laid blanks (10).

Abstract: The present invention relates to a barrier film for a paper or paperboard-based packaging material, said barrier film comprising: a substrate; a vacuum coating layer having a thickness in the range of 1-500 nm disposed on the substrate; and a protective coating layer comprising a crosslinked water-soluble polymer disposed on the vacuum coating layer. The present invention further relates to a paper or paperboard based packaging material and containers comprising the barrier film, and to a method for manufacturing the barrier film.

Abstract: The present invention relates to a gas barrier film for a paper or paperboard based packaging material, said gas barrier film comprising: a microfibrillated cellulose layer (MFC layer), at least one surface of which has been grafted with a fatty acid halide; and a polymer layer disposed on the at least one surface of the MFC layer which has been grafted with a fatty acid halide. The present invention further relates to a paper or paperboard based packaging material, containers and carton blanks comprising the gas barrier film, and to a method for manufacturing the gas barrier film.

Abstract: The present invention relates to a bonding resin comprising lignin and plasticizer. The invention also relates to a method for producing the bonding resin as well as the use of the bonding resin. The bonding resin is useful for example in the manufacture of laminates, mineral wool insulation and wood products such as plywood, oriented strandboard (OSB), laminated veneer lumber (LVL), medium density fiberboards (MDF), high density fiberboards (HDF), parquet flooring, curved plywood, veneered particleboards, veneered MDF or particle boards. The bonding resin is also useful for example in composites, molding compounds and foundry applications.

Abstract: The present invention relates to a process for manufacturing a film comprising high amounts of microfibrillated cellulose (MFC), having haptic properties. According to the present invention, a wet web comprising MFC is formed, followed by addition of particles having an average diameter of at least 1 ?m to the wet web, followed by dewatering and/or drying. The wet web may be formed for example by wet laid or cast forming methods. The particles may be added to the wet web for example by cast coating or spraying.

Abstract: The present invention relates to bio-based carbon foams, a method for their manufacturing and their use. The method comprises foaming a slurry of cellulose fibres to obtain a cellulose fibre foam, adding a biomass component to the foam, and carbonization of the biomass-cellulose fibre foam.

Abstract: The present invention relates to bio-based carbon foams, a method for their manufacturing and their use. The method comprises foaming a slurry of cellulose fibres and a biomass component to obtain a biomass-cellulose fibre foam, and carbonization of said biomass-cellulose fibre foam.

Abstract: The present invention relates to a method for manufacturing a web or film comprising highly refined cellulose fibers in a paper machine, the method comprising the steps of: a) forming a wet web by applying an aqueous pulp suspension comprising highly refined cellulose fibers on a wire; and b) dewatering the wet web on the wire to obtain a dewatered web comprising highly refined cellulose fibers, wherein the dewatering comprises membrane assisted dewatering using a gas permeable membrane temporarily applied to the wet web, wherein the gas permeable membrane has a lower air permeability than the wire.

Abstract: The present invention relates to a container for liquid containing food products, manufactured by press forming of a polymer coated fiber based substrate, said container comprising a bottom portion, a sidewall portion and a top flange portion, wherein said press forming has resulted in the formation a plurality of creases extending in a direction from the bottom portion to the top flange portion and further across the top flange portion. The container comprises an indentation pattern (130, 140, 150, 160, 170, 180, 190a, 190b, 200) formed at a creased inner surface of said sidewall portion and/or at a creased top surface of said top flange portion, said indentation pattern preventing migration of liquid from a liquid containing food product in the container along said creases. The invention relates also to a method for manufacturing such container.

Abstract: The present invention relates to a method for manufacturing a film comprising microfibrillated cellulose wherein the method comprises the steps of; providing a suspension comprising a microfibrillated cellulose, adding an enzyme to the suspension, mixing the enzyme with the suspension to form a mixture, applying said mixture to a wire to form a fibrous web and drying said web to form said film. The present invention further relates to a film comprising microfibrillated cellulose having good barrier properties.

Abstract: An air-laid blank (10) comprises natural fibers at a concentration of at least 70% by weight of the air-laid blank (10) and a thermoplastic polymer binder at a concentration selected within an interval of from 2.5 up to 30% by weight of the air-laid blank (10). The air-laid blank (10) has an average density and a portion (11) of the air-laid blank (10) has a density different from the average density. The air-laid blank (10) is produced by modifying the air-permeability of a portion (121) of an air-permeable collector (120) to form a portion (11) of the air-laid blank (10) having a density from the average density.

Abstract: The present invention relates to a method for manufacturing a film comprising highly refined cellulose fibers in a paper-making machine, the method comprising the steps of: a) providing an aqueous pulp suspension comprising at least 20% by dry weight of highly refined cellulose fibers having an SR (Schopper-Riegier) value in the range of 80-100 at a consistency in the range of 0.8-3 wt % and; b) deflocculating and diluting the aqueous pulp suspension to a lower consistency in the range of 0.1-1.5 wt % by injecting the aqueous pulp suspension into an aqueous stream using a high shear mixer to obtain a diluted aqueous pulp suspension; and c) feeding the diluted aqueous pulp suspension to a headbox of the paper-making machine.

Abstract: The present invention relates to a method for manufacturing a multilayer film comprising microfibrillated cellulose (MFC) in a paper-making machine, the method comprising the steps of: a) forming a bottom web layer by applying a first pulp suspension comprising at least 50% by dry weight of cellulose based fibrous material having an SR (Schopper-Riegler) value in the range of 18-75 on a bottom web wire; b) forming or applying an intermediate web layer formed from a second pulp suspension comprising at least 50% by dry weight of MFC having an SR value in the range of 80-100 on the bottom web layer; c) applying a top web layer formed from a third pulp suspension comprising at least 50% by dry weight of cellulose based fibrous material having an SR (Schopper-Riegler) value in the range of 18-75 on the intermediate web layer to form a multilayer web; and d) dewatering, and optionally drying, the formed multilayer web to obtain a multilayer film comprising MFC.

Abstract: The present invention relates to paper or paperboard comprising cellulose fibers, said paper or paperboard comprising at least one coating layer formed by extrusion coating of a PP (polypropylene) resin, characterized in that the PP resin comprises at least 50% by weight of a branched PP copolymer having a density in the range of 890-910 kg/m3 (as determined according to ISO 1183), a melting temperature in the range of 155-170° C. (as determined according to ISO 11357-3), and a melt flow rate (230° C./2.16 kg) in the range of 10-15 g/10 min (as determined according to ISO 1133), and wherein the PP resin is applied to the paper or paperboard at a grammage of less than 30 g/m2.

Abstract: The invention provides a method of producing a filler comprising calcium carbonate (PCC), preferably to be used in paper or paper board production or in fibre based composites. The method of the invention comprises the steps of; —providing fly ash generated in paper or paper board production; —fractionating said fly ash in at least one step, whereby a coarser fraction is separated from a finer fraction; —forming a suspension of said coarser fraction; —adding carbon dioxide to said suspension to form precipitated calcium carbonate. The method of the invention avoids problems with high amounts of arsenic and heavy metals in the production of filler comprising PCC, when using ash generated in paper or paper board production as a raw material. It has been shown that harmful elements, such as arsenic and heavy metals, are primarily accumulated in the finer fractions of the fly ash.

Abstract: The present disclosure relates to a method for producing a carbon-silicon composite material powder, comprising: providing a carbon-containing precursor, which is lignin; providing at least one silicon-containing active material; melt-mixing at least said carbon-containing precursor and said silicon-containing active material(s) to a melt-mixture; providing said melt-mixture in a non-fibrous form and cooling the melt- mixture to provide an isotropic intermediate composite material; subjecting said isotropic intermediate composite material to a thermal treatment, wherein said thermal treatment comprises a carbonization step to provide a carbon-silicon composite material, and subjecting said carbon-silicon composite material to pulverization to provide said carbon-silicon composite material powder.

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 wt-% to 100 wt-% 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 support, through at least one shoe press equipment, drying the dewatered web to form a film which film has an Oxygen Transmission Rate (OTR) value (23° C., 50% RH) below 100 cc/m2/24 h according to ASTM D-3985.