公开(公告)号：US11486094B2

公开(公告)日：2022-11-01

申请号：US16480315

申请日：2018-02-01

Applicant: Aalto University Foundation sr

Inventor： Herbert Sixta ,  Yibo Ma ,  Michael Hummel

IPC: D21H13/08 ,  D21C9/00 ,  D21C3/00 ,  D21C3/22

Abstract: According to an example aspect of the present invention, there is provided a process for the conversion of cellulosic waste material into a recycled cellulose product comprising the steps of cooking the waste material in a cooking liquor to remove lignin from the waste material and provide a delignified pulp, dissolving the delignified pulp in an ionic liquid to provide a spinning dope suitable for dry jet-wet spinning in an ionic liquid solution, and subjecting the spinning dope to a further processing step to provide a recycled cellulose product, said further step selected from the group of spinning cellulose fibers for use in textiles from the solution, extruding a film product for use in packaging, regenerating the dope as a hydrogel and regenerating the dope as an aerogel.