Spinnova Oy

Ecco Sko A/s

Sanna Haavisto

Juha Salmela

Johanna Liukkonen

Janne Poranen

Pasi Selenius

Stojanka Petrusic

Karri Björklund

Arto Salminen

Marko Myllys

Pia Vento

Thomas Gøgsig

Markko Myllys

Karri Bjorklund

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

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Jyväskylä, Finland

Sanna Haavisto