Patent classifications
D21H17/29
BIOCOMPOSITE MATERIAL
The present invention relates generally to biocomposite materials made of cellulose and wheat bran and/or oat husk, prepared by methods comprising mixing the husk or bran with an aqueous alkaline solution, stirring and/or homogenizing the mixture, admixing with cellulose pulp and thermoforming the material under conditions admitting curing, thereby obtaining improvements in strength measured as at least one of strain at peak (%), stress at peak (%) and Young's modulus (MPa).
STARCH COMPOSITION
The present invention relates to an aqueous composition of dissolved starch, use of it and compositions comprising the same. The composition has good handling properties and viscosity stability also in elevated starch concentrations.
STARCH COMPOSITION
The present invention relates to an aqueous composition of dissolved starch, use of it and compositions comprising the same. The composition has good handling properties and viscosity stability also in elevated starch concentrations.
Methods and apparatus for manufacturing fiber-based meat containers
Methods and apparatus for vacuum forming a meat tray using a slurry. The slurry comprises: a moisture barrier comprising AKD in the range of about 4% by weight; a fiber base comprising bagasse; and an oil barrier comprising a water-based emulsion in the range of about 1.5% by weight.
Methods and apparatus for manufacturing fiber-based meat containers
Methods and apparatus for vacuum forming a meat tray using a slurry. The slurry comprises: a moisture barrier comprising AKD in the range of about 4% by weight; a fiber base comprising bagasse; and an oil barrier comprising a water-based emulsion in the range of about 1.5% by weight.
PROCESS FOR PRODUCTION OF FILM COMPRISING MICROFIBRILLATED CELLULOSE
A film comprising microfibrillated cellulose, nanoparticles, and a retention polymer. The nanoparticles are nanosilica nanoparticles that are anionic at neutral or alkaline pH and have at least one dimension less than 100 nm; and the retention polymer is starch. According to the present invention a high amount of nanoparticles is used as an additive, optionally together with a retention polymer.
Process for Producing Paper or Paperboard, in Particular Label Paper or Paperboard Suited for Use as Packaging Material for Beverage Containers, and Paper or Paperboard Produced by This Process
A method for producing label paper or paper for corrugated board or folding carton for packaging of beverage containers has the steps of feeding wood fiber pulps into a papermaking process and forming a web mixture. The web mixture has the wood fiber pulp, a cationic polymer, an anionic polymer, and a cationic starch. The cationic starch is added to the wood fiber pulp only after the addition of the anionic polymer and cationic polymer.
Process for Producing Paper or Paperboard, in Particular Label Paper or Paperboard Suited for Use as Packaging Material for Beverage Containers, and Paper or Paperboard Produced by This Process
A method for producing label paper or paper for corrugated board or folding carton for packaging of beverage containers has the steps of feeding wood fiber pulps into a papermaking process and forming a web mixture. The web mixture has the wood fiber pulp, a cationic polymer, an anionic polymer, and a cationic starch. The cationic starch is added to the wood fiber pulp only after the addition of the anionic polymer and cationic polymer.
METHOD FOR MANUFACTURING MULTI-LAYERED FIBROUS WEB AND MULTI-LAYERED FIBROUS WEB
A method for manufacturing a multi-layered fibrous web is disclosed, which includes at least two fibrous layers, where each layer is formed from one or more fibre stocks. The fibrous layers are combined prior to subjecting the multilayered fibrous web to wet-pressing and drying. At least one layer of the multi-layered fibrous web is formed from a fibre stock including at least 50 weight-% of a chemi-thermomechanical pulp (CTMP), a hardwood kraft pulp and/or a recycled fibre material calculated from a thick stock applied to a particular layer approach system. A first strength component and a second strength component are added to the fibre stock. The first strength component includes a cationic strength agent and the second strength component includes a synthetic amphoteric polymer composition having a net charge from −3 to +1 meq/g (dry), at a pH of 7.
METHOD FOR MANUFACTURING MULTI-LAYERED FIBROUS WEB AND MULTI-LAYERED FIBROUS WEB
A method for manufacturing a multi-layered fibrous web is disclosed, which includes at least two fibrous layers, where each layer is formed from one or more fibre stocks. The fibrous layers are combined prior to subjecting the multilayered fibrous web to wet-pressing and drying. At least one layer of the multi-layered fibrous web is formed from a fibre stock including at least 50 weight-% of a chemi-thermomechanical pulp (CTMP), a hardwood kraft pulp and/or a recycled fibre material calculated from a thick stock applied to a particular layer approach system. A first strength component and a second strength component are added to the fibre stock. The first strength component includes a cationic strength agent and the second strength component includes a synthetic amphoteric polymer composition having a net charge from −3 to +1 meq/g (dry), at a pH of 7.