Spinnova Oy

Upm-Kymmene Corporation

Ecco Sko A/s

Spinnova Oyj

Juha Salmela

Johanna Liukkonen

Petri Kuosmanen

Jyri Lehto

Sanna Haavisto

Thomas Widmaier

Panu Kiviluoma

Pasi Selenius

Tuomas Isomaa

Hans Koskinen

Janne Poranen

Tuomas Stark

Harri Kiiskinen

Antti Oksanen

Ali Harlin

Antti Laukkanen

Jan-Erik Teirfolk

Martina Lille

Stojanka Petrusic

Yingfeng Shen

Arto Salminen

Marko Myllys

Pia Vento

Karri Björklund

Thomas Gøgsig

Markko Myllys

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.

Method for manufacturing fibrous yarn

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 () including water, refined cellulose fibrils and at least one rheology modifier, directing the cellulose suspension through a nozzle () onto a surface (), drying the cellulose suspension onto the surface () for forming a fiber (), and cutting the cellulose suspension on the surface for forming staple fibers ().

Method and apparatus for manufacturing natural fiber based staple fibers on a common surface

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.

Chemical method and system for the manufacture of fibrous yarn

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.

Mechanical method and system for the manufacture of fibrous yarn and fibrous yarn

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.

Method for producing high tensile strength nanofiber yarn

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

Method and apparatus for producing fibre yarn

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

An agent for oilfield applications capable of being dispersed in water is nanofibrillar cellulose. The nanofibrillar cellulose mixed in water gives shear-thinning behavior to the composition, which is pumped to a subterranean oil-containing formation to aid in oil recovery.

Agent and composition for oilfield applications

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.

Method for the manufacture of fibrous yarn

Growing community of inventors

Laukaa, Finland

Juha Salmela