A set for mechanical processing suspended fibrous material includes a die plate having receiving openings in a predefined arrangement for insertion of blade-shaped processing elements which jut out on a process side and are flowed onto by the fibrous material. The blade-shaped processing elements have each a plurality of foot regions in longitudinally spaced-apart relation, which pass through the die plate and jut out from the die plate on a process-distal. At least some of the foot regions of the processing elements reach into associated receiving grooves of a base plate on the process-distal side. As an alternative, transverse stiffening elements are arranged substantially orthogonally in the longitudinal direction of the processing elements such that the transverse stiffening elements stabilize the foot regions of the processing elements on the process-distal side.

A set for mechanical processing suspended fibrous material includes a die plate having receiving openings in a predefined arrangement for insertion of blade-shaped processing elements which jut out on a process side and are flowed onto by the fibrous material. The blade-shaped processing elements have each a plurality of foot regions in longitudinally spaced-apart relation, which pass through the die plate and jut out from the die plate on a process-distal. At least some of the foot regions of the processing elements reach into associated receiving grooves of a base plate on the process-distal side. As an alternative, transverse stiffening elements are arranged substantially orthogonally in the longitudinal direction of the processing elements such that the transverse stiffening elements stabilize the foot regions of the processing elements on the process-distal side.

Methods of increasing formability of a palm sheath material, methods of producing a palm sheath-based product, and palm sheath foodware produced thereby. The formability of a palm sheath material is increased by treating the palm sheath material with a fluid substance that weakens bonds between cellulose fibers of the palm sheath material by partially eliminating lignin and hemicellulose of the palm sheath material. The treated palm sheath material can be used to form various products, such as foodware products by deforming the treated palm sheath material into a shape. Advantageously, the treated palm sheath material can typically be deformed by stretching or punching using dies to a height to diameter aspect ratio of greater than 0.2 and/or to a limit strain of the palm sheath material greater than 0.38.

A refining member for a pulp refiner comprising a refining body with a refining surface comprising refiner bars separated by refiner grooves and teeth. Each of the refiner bars extend from a radially inward position on the refining surface to a first radially outward position on the refining surface, and the teeth extend to a second radially outward position on the refining surface. The second radially outward position is nearer to an outermost part of the refining body than the first radially outward position. The refiner bars are adapted to refine wood fibers, and the teeth are adapted to break up fiber bundles.

A set for mechanical processing suspended fibrous material includes a die plate having receiving openings in a predefined arrangement for insertion of blade-shaped processing elements which jut out on a process side and are flowed onto by the fibrous material. The blade-shaped processing elements have each a plurality of foot regions in longitudinally spaced-apart relation, which pass through the die plate (2) and jut out from the die plate on a process-distal. At least some of the foot regions of the processing elements reach into associated receiving grooves of a base plate on the process-distal side. As an alternative, transverse stiffening elements are arranged substantially orthogonally in the longitudinal direction of the processing elements such that the transverse stiffening elements stabilize the foot regions of the processing elements on the process-distal side.

A set for mechanical processing suspended fibrous material includes a die plate having receiving openings in a predefined arrangement for insertion of blade-shaped processing elements which jut out on a process side and are flowed onto by the fibrous material. The blade-shaped processing elements have each a plurality of foot regions in longitudinally spaced-apart relation, which pass through the die plate (2) and jut out from the die plate on a process-distal. At least some of the foot regions of the processing elements reach into associated receiving grooves of a base plate on the process-distal side. As an alternative, transverse stiffening elements are arranged substantially orthogonally in the longitudinal direction of the processing elements such that the transverse stiffening elements stabilize the foot regions of the processing elements on the process-distal side.

A cellulose nanofibrils production method comprising the steps of: identifying a desired level of cellulose nanofibrils pulp purity, partially refining pulp to produce a cellulose nanofibrils pulp purity between 5% and 15% less than the desired desired purity, and then separating out the cellulose nanofibrils from the longer fibers to produce the desired level of cellulose nanofibrils pulp purity.

A defibering and deflaking pulper has a defibering rotor-stator pair and a deflaking rotor-stator pair for processing a fiber-based material into smaller pieces. The defibering and deflaking pulper creates an impeller-produced vortical circulation that pulls the material through a defibering rotor-stator interface, where the material is broken down into smaller pieces, and then through a deflaking rotor-stator interface, where the smaller pieces are broken down into even smaller pieces. The defibering and deflaking pulper accumulates the defibered and deflaked material that passes through the defibering rotor-stator interface and the deflaking rotor-stator interface for further processing. This combination of defibering and deflaking in the defibering and deflaking pulper reduces plugging from larger pieces of the material and reduces downstream processing of the material, thus increasing productivity and reducing costs.

Textile fibers of different lengths are fractionated in a liquid medium at a predetermined consistency into at least two fractions on the grounds of the fiber length, the two fractions being a first accept and a second accept. The second accept, which has longer fibers than the first accept, is led to a refining step in the liquid medium, and the refined fibers are fractionated in the liquid medium into at least two fractions on the grounds of the fiber length.

Textile fibers of different lengths are fractionated in a liquid medium at a predetermined consistency into at least two fractions on the grounds of the fiber length, the two fractions being a first accept and a second accept. The second accept, which has longer fibers than the first accept, is led to a refining step in the liquid medium, and the refined fibers are fractionated in the liquid medium into at least two fractions on the grounds of the fiber length.