Abstract:
The invention relates to a method for the manufacture of fibrous yarn comprising the steps, where an aqueous suspension comprising fibers and at least one rheology modifier is provided, followed by directing said suspension through at least one nozzle, to form at least one yarn, and then dewatering said yarn.
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 means 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 there between. 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:
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.