Abstract: Disclosed is a method for the manufacture of fibrous yarn including the steps, where an aqueous suspension including fibers and at least one rheology modifier is provided, followed by directing the suspension through at least one nozzle, to form at least one yarn, and then dewatering the yarn.

Abstract: The application relates to a method and apparatus for manufacturing a natural fiber based staple fibers. The application further relates to the staple fibers, staple fiber based raw wool and products comprising such. A method comprises providing a cellulose suspension (101, 310, 510) including water, refined cellulose fibrils and at least one rheology modifier, directing the cellulose suspension through a nozzle (102, 320, 520) onto a surface (300, 400, 500), drying the cellulose suspension onto the surface (103, 300, 400, 500) for forming a fiber (350, 550), and cutting the cellulose suspension on the surface for forming staple fibers (105).

Abstract: Disclosed embodiments describe a reconstructed filament comprising natural protein fibrils and an additive. Disclosed embodiments also describe a wool comprising: a plurality of staple fibers formed of reconstructed filaments, wherein the reconstructed filaments comprise natural protein fibrils and an additive. Disclosed embodiments also describe a yarn spun from staple fibers, the yarn comprising: staple fibers comprising reconstructed filament, wherein the reconstructed filament comprises natural protein fibrils and an additive. Disclosed embodiments also describe an item comprising a reconstructed filament, wherein the reconstructed filament comprises natural protein fibrils and an additive.

Abstract: The present invention discloses a method for the manufacture of fibrous yarn. The said method includes the steps of providing an aqueous suspension having fibers and at least one rheology modifier, followed by directing said suspension through at least one nozzle, to form at least one yarn. The method further includes subjecting the said at least one yarn to dewatering. The method is characterized in that a hydrogel is provided onto surface of the yarn that exits the at least one nozzle. Further disclosed is a system for manufacture of fibrous yarn and the fibrous yarn so produced during the manufacturing.

Abstract: Disclosed embodiments describe a method for manufacturing a staple fiber based on natural protein fiber. The method may include: providing a protein suspension, the protein suspension comprising fibrils of the natural protein fiber; directing the protein suspension through a nozzle onto a surface for forming a protein based fiber; drying the protein suspension on the surface; extracting the fiber from the surface; and providing the staple fiber. Disclosed embodiments may further describe a fiber based raw wool. The raw wool may include staple fibers, wherein the staple fibers are reconstructed on the basis of protein fibrils and are mechanically subdivided from natural protein fibers, wherein the protein fibrils are interlocked by hydrogen bonds, and wherein the raw wool comprises an unoriented, entangled, fluffy network of staple fibers.

Abstract: The invention relates to a method and system for manufacturing a fibrous yarn. An aqueous suspension having fibers and at least one rheology modifier is directed through at least one nozzle to form at least one fibrous yarn. The said nozzle is adapted to swirl the flow of the aqueous suspension around the main flow axis of the said nozzle. Then the aqueous suspension at the exit of the nozzle is merged with at least one annular flow comprising at least one cross linking reagent. Then the fibrous yarn is subjected to pressing mechanism. The pressing mechanism is adapted to dewater and twist the fibrous yarn. Finally, a fibrous yarn product having improved physical properties is produced.

Abstract: The application relates to a method and apparatus for manufacturing a natural fiber based staple fibers. The application further relates to the staple fibers, staple fiber based raw wool and products comprising such. A method comprises providing a cellulose suspension (101, 310, 510) including water, refined cellulose fibrils and at least one rheology modifier, directing the cellulose suspension through a nozzle (102, 320, 520) onto a surface (300, 400, 500), drying the cellulose suspension onto the surface (103, 300, 400, 500) for forming a fiber (350, 550), and cutting the cellulose suspension on the surface for forming staple fibers (105).

Abstract: The present invention relates to a process for producing high tensile strength nanofiber yarn by wet-extrusion on a slippery surface. In particular, the present invention discloses a method wherein individual nanocellulose fibers are aligned by high speed in-nozzle-alignment and on-surface-alignment, which comprise controlling the fiber width on a moving slippery surface.

Abstract: A fibrous monofilament includes plant pulp fibers and the fibrous monofilament includes at least 30 wt % of plant based natural cellulose fibers.

Abstract: “The invention relates to a method and system for manufacturing a fibrous yarn. An aqueous suspension having fibers and at least one rheology modifier is directed through at least one nozzle to form at least one fibrous yarn. The said nozzle is adapted to swirl the flow of the aqueous suspension around the main flow axis of the said nozzle. Then the aqueous suspension at the exit of the nozzle is merged with at least one annular flow comprising at least one cross linking reagent. Then the fibrous yarn is subjected to pressing mechanism. The pressing mechanism is adapted to dewater and twist the fibrous yarn. Finally, a fibrous yarn product having improved physical properties is produced.

Abstract: The present invention discloses a method for the manufacture of fibrous yarn. The said method includes the steps of providing an aqueous suspension having fibers and at least one rheology modifier, followed by directing said suspension through at least one nozzle, to form at least one yarn. The method further includes subjecting the said at least one yarn to dewatering. The method is characterized in that a hydrogel is provided onto surface of the yarn that exits the at least one nozzle. Further disclosed is a system for manufacture of fibrous yarn and the fibrous yarn so produced during the manufacturing.

Abstract: The present invention relates to a process for producing high tensile strength nanofiber yarn by wet-extrusion on a slippery surface. In particular, the present invention discloses a method wherein individual nanocellulose fibers are aligned by high speed in-nozzle-alignment and on-surface-alignment, which comprise controlling the fiber width on a moving slippery surface.

Abstract: A method and apparatus for producing fiber yarn is provided. The novel apparatus includes a first transportation and pressing element (1) and a second transportation and pressing element (5) arranged adjacent to the first transportation and pressing element (1) as well as elements for driving the transportation and pressing elements (1, 5). The first and second transportation and pressing elements (1, 5) are arranged to form a nip therebetween. The apparatus also includes a nozzle (9) for feeding fiber suspension (6), such as pulp fiber suspension, to the nip between the first and second transportation and pressing elements (1, 5).

Abstract: A method and apparatus for producing fibre yarn is provided. The novel apparatus includes a first transportation and pressing element (1) and a second transportation and pressing element (5) arranged adjacent to the first transportation and pressing element (1) as well as elements for driving the transportation and pressing elements (1, 5). The first and second transportation and pressing elements (1, 5) are arranged to form a nip therebetween. The apparatus also includes a nozzle (9) for feeding fibre suspension (6), such as pulp fibre suspension, to the nip between the first and second transportation and pressing elements (1, 5).

Abstract: A method and apparatus for producing fiber yarn is provided. The novel apparatus includes a first transportation and pressing element (1) and a second transportation and pressing element (5) arranged adjacent to the first transportation and pressing element (1) as well as elements for driving the transportation and pressing elements (1, 5). The first and second transportation and pressing elements (1, 5) are arranged to form a nip therebetween. The apparatus also includes a nozzle (9) for feeding fiber suspension (6), such as pulp fiber suspension, to the nip between the first and second transportation and pressing elements (1, 5).

Abstract: A method for the manufacture of fibrous yarn includes providing an aqueous suspension formed from fibers and at least one rheology modifier; directing the aqueous suspension through at least one nozzle, to form at least one yarn, and subjecting said yarn to dewatering. The at least one nozzle can have an inner diameter of an outlet smaller than or equal to a maximum length weighed fiber length of the fibers.