Stora Enso Oyj

Wetend Technologies Oy

Wetend Technologies Ltd.

Stora Enso Ab

Savcor Process Oy

Isto Heiskanen

Kaj Backfolk

Esa Saukkonen

Jukka Kankkunen

Katja Lyytikäinen

Lars Axrup

Anna Kauppi

Ville Ribu

Jari Rasanen

Risto Laitinen

Heidi Saxell

Jouni Matula

Nina Miikki

Jussi Matula

Nina Ruohoniemi

Teija Laukala

Ali Harlin

Valentas Gaidelis

Jari Räsänen

Kimmo Nevalainen

Jonas Sidaravicius

Seppo Lampainen

Simo Siitonen

Olavi Imppola

Henri Kastinen

Otto Nylén

Katja Lyytikainen

Matti Vakevainen

Karri Tahkola

Tapani Penttinen

Tuomo Hjelt

Karita Kinnunen

Frank Peng

Mikael Hjerpe

Kirsi Partti-Pellinen

Cecilia Land Hensdal

Jurkka Kuusipalo

Markku Sainio

Vesa Kunnari

Erkki Laiho

Riku Pihko

Jaakko Hiltunen

Philip Håkansson

Veikko Jokela

Juha Korvenniemi

Ari Kotilainen

Timo Räisänen

Titta Lammi

Duncan Mayes

Mari Hiltunen

Antti Savolainen

Pertti Nousiainen

Isabel Knöös

Seppo Karine

Christian Aulin

Taina Kamppuri

Pekka Kylliainen

Jan Lif

Janne Myllykangas

Esa Koreasalo

Tommi Lehikoinen

Martti Pulliainen

Mikko Vepsalainen

Jukka Rautiainen

Minna Peltola

Ari Johansson

Jyri Jarvi

Matti Hakkinen

Mika Riikonen

Harri Kujala

Marianne Andersson

Anna Nyberg Zetterlund

Tim Lindfors

Johanna Lyytikainen

Antti Veitola

Nina Ruhoniemi

Vesa Lepisto

Jouni Tuomela

Susanna Tapio

Toni Jurvanen

Petri Suhonen

Mari-Ann Norborg

Isabel Knoos

Astrid Odeberg Glasenapp

Timo Raisanen

Marianna Vehviläinen

Esa Tapio Saukkonen

Katja Eliisa Lyytikainen

Marianna Vehvilaeinen

Jukka Kahelin

Erkki Saharinen

Saija Pollanen

Teemu Tiainen

Jani Korhonen

Jari Raesaenen

Timo Raeisaenen

A method for making a cellulose film comprising microfibrillated cellulose (MFC) is provided, said method comprising the step of: applying an aqueous emulsion of one or more vegetable oils to a surface of a casting substrate. Improved release of the MFC film can thus be achieved.

Method of making a cellulose film comprising microfibrillated cellulose

The present invention is directed to a process for manufacturing a film or coating comprising high amounts of cellulosic nanomaterial. According to the present invention, a screen printing press, such as a rotary screen press, is used to create a film or coating comprising cellulosic nanomaterial. One benefit of the present process is that the suspension used in the printing process has a high dry content and high viscosity, thereby facilitating the process for manufacturing a film or coating comprising high amounts of cellulosic nanomaterial.

Process for production of film or coating comprising cellulosic nanomaterial

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.

Method for manufacturing a film comprising highly refined cellulose fibers

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.

Multilayer film comprising MFC

The present invention relates to a method for the production of an adhesive component wherein said method comprises the following steps: providing a suspension comprising starch granules, adding a suspension comprising microfibrillated cellulose to the suspension comprising starch granules, drying the starch granules and microfibrillated cellulose suspension to a dry content above 70 wt-% to form said adhesive component. The invention also relates to an adhesive, a corrugated board, paper and paperboard comprising said adhesive and to the adhesive component produced according to the method.

Method to produce an adhesive component comprising starch and microfibrillated cellulose, an adhesive and products

The present invention is directed to a coated paper substrate that is particularly suitable for metallization and other nano-coatings that provide barrier properties and are applied using vacuum deposition techniques. The invention is also directed to a process for preparing the coated paper substrate. The invention is also directed to a packaging material comprising the coated paper substrate.

Coated paper substrate suitable for metallization

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/m/24 h according to ASTM D-3985.

Method for dewatering a web comprising microfibrillated celluose and a film produced from the dewatered web

The present invention is directed to a process for manufacturing a nano-coated pulp-based substrate comprising the steps of: a) providing a suspension comprising pulp, said pulp having Schopper Riegler value of at least 70°; b) using the suspension of step a) to form a wet web; c) dewatering and/or drying the wet web to form a substrate; d) adding a first layer of an acrylic monomer solution comprising less than 2 wt-% water to the surface of the substrate, followed by radiation curing the first layer; e) optionally adding a second layer comprising an acrylic monomer solution to the surface of the cured first layer and radiation curing the second layer; f) providing a nano-coating on the surface of the cured first or second layer such that a nano-coating having a thickness in the range of from 0.1 nm to 100 nm is provided on the substrate.

Process for production of nano-coated substrate

The present invention relates to a foam formed solid composite, comprising: a matrix phase consisting of a mixture of nanocellulose, at least one foaming agent, and optional additives, and a dispersed phase consisting of solid low-density particles having a density of less than 1.2 kg/dm. The present invention further relates to a method and a liquid foam composition for manufacturing the solid composite.

Foam formed solid composite comprising nanocellulose and solid low-density particles

The invention relates to a method for applying starch to a paper or paperboard web, the method comprising the steps of: providing an aqueous suspension comprising starch particles and at least 1 wt %, based on the dry solid content of the suspension, of an amphiphilic polymer, creating a foam of the aqueous suspension, and applying the foam to the paper or paperboard web. The invention further relates to a paper or paper board product obtained by the method.

Method for applying starch to a paper or paperboard web

The present invention relates to a method for manufacturing a multilayer film comprising highly refined cellulose fibers, the method comprising the steps of: a) forming a first wet web by applying a first pulp suspension comprising highly refined cellulose fibers on a first wire; b) partially dewatering the first wet web to obtain a first partially dewatered web; c) forming a second wet web by applying a foamed second pulp suspension comprising highly refined cellulose fibers and a foaming agent on a second wire; d) partially dewatering the foamed second wet web to obtain a second partially dewatered web; e) joining the first and second partially dewatered web to obtain a multilayer web; and f) further dewatering, and optionally drying, the multilayer web to obtain a multilayer film comprising highly refined cellulose fibers.

Multilayer film comprising highly refined cellulose fibers

The present invention relates to a method for manufacturing a multilayer film comprising highly refined cellulose fibers, the method comprising the steps of: a) forming a first wet web by applying a first pulp suspension comprising highly refined cellulose fibers on a first wire; b) partially dewatering the first wet web to obtain a first partially dewatered web; c) forming a second wet web by applying a second pulp suspension comprising highly refined cellulose fibers on a second wire; d) partially dewatering the second wet web to obtain a second partially dewatered web; e) applying a binder between the first and second partially dewatered web and joining the first and second partially dewatered web to obtain a multilayer web; and f) further dewatering, and optionally drying, the multilayer web to obtain a multilayer film comprising highly refined cellulose fibers.

The present invention relates to a method for the production of a coated paper, paperboard or film, wherein the method comprises the steps of; providing a first suspension comprising cellulose fibers and/or nanocellulose, applying the first suspension on a substrate to form a fibrous web, wherein the web has a first and a second side, providing a second suspension comprising polymers and/or particles wherein the second suspension has a Brookfield viscosity above 3000 m Pas at a dry content between 4%-40% by weight, providing at least one calender comprising at least one roll or belt, applying the second suspension to the surface of the at least one calender roll or belt forming a coating web and conducting said fibrous web through the at least one calender whereby the coating web is applied to the first side of the web forming the coated paper, paperboard or film. The invention also relates to a paper, paperboard or film produced according to the method.

Method for the production of a coated paper, paperboard or film and a coated paper, paperboard or film

A textured film is provided which comprises nanocellulose. At least a first surface of the film comprises a patterned, textured surface formed by repeating protruding regions and at least one non-protruding region arranged between said protruding regions. A particular height difference between the protruding and non-protruding regions can give liquid repellent properties. Methods for making the textured film are also provided.

Patterned liquid repellent nanocellulosic film

The present invention relates to a web of fibrous cellulosic material derived from wood pulp, said web being suitable for three-dimensional moulding to form a packaging product, wherein the web comprises >40 wt % of soft wood chemical pulp and at least one strength enhancement agent, wherein the web has a grammage less than 400 g/m, and wherein the cellulose fibers of said soft wood chemical pulp comprise a fiber curl of >9%.

Mouldable fibrous sheet and a production method thereof

Growing community of inventors

Imatra, Finland

Isto Heiskanen