公开(公告)号：US20200048794A1

公开(公告)日：2020-02-13

申请号：US16486354

申请日：2017-02-15

Applicant: ECCO SKO A/S ,  SPINNOVA OY

Inventor： Johanna LIUKKONEN ,  Sanna HAAVISTO ,  Pasi SELENIUS ,  Juha SALMELA ,  Janne PORANEN ,  Arto SALMINEN ,  Markko MYLLYS ,  Pia VENTO ,  Karri BJÖRKLUND ,  Thomas GØGSIG ,  Stojanka PETRU?IC

IPC: D01F4/02 ,  D01D5/04

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.