公开(公告)号：US20200208347A1

公开(公告)日：2020-07-02

申请号：US16233684

申请日：2018-12-27

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Shi-Kuang HWANG ,  Tien-Ching LU ,  Kai-Jen HSIAO ,  Jing-Wen TANG

IPC: D21C5/00 ,  D01F2/00

Abstract: A method for preparing α-cellulose, a spinning composition, and a fiber material are provided. The method for preparing α-cellulose includes providing a coffee residue; subjecting the coffee residue to a decolorization treatment, obtaining a white powder; reacting the white powder with an alkaline solution, obtaining a mixture; filtering the mixture to produce a filter cake; and baking the filter cake to obtain α-cellulose.