公开(公告)号：US10968567B2

公开(公告)日：2021-04-06

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: A61K31/717 ,  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.