公开(公告)号：US11713528B2

公开(公告)日：2023-08-01

申请号：US17823914

申请日：2022-08-31

Applicant: Apani Systems Inc.

Inventor： Emily Grace Robinson ,  Scot E Land

IPC: B01D37/00 ,  B01D43/00 ,  B07C5/342 ,  D01D4/02 ,  D01D13/00 ,  D01D13/02 ,  D01F1/06 ,  D01F1/07 ,  D01F1/10 ,  D01F2/02 ,  D21C7/00 ,  D21C7/12 ,  D06B9/00 ,  C08J11/08 ,  D01D1/02 ,  D01D5/06 ,  D01F2/00 ,  B07C5/36

CPC classification number: D06B9/00 ,  B07C5/3422 ,  B07C5/361 ,  C08J11/08 ,  D01D1/02 ,  D01D5/06 ,  D01F2/00 ,  C08J2301/02 ,  D10B2201/22 ,  Y02W30/66

Abstract: A textile recycling method receives textile-waste-to-be-recycled, sorts the waste to isolate cellulose-containing articles from non-cellulose-containing articles, and re-sizes at least some of the cellulose-containing articles to create feedstock. The feedstock is processed in a cellulose solvent reactor, which has at least one ionic liquid. The ionic liquid dissolves intermolecular cellulose bonds of the feedstock to create a spinning dope. Cellulose fibers dissolved in the cellulose-bearing spinning dope solution are extruded in a cellulose coagulation bath reservoir to reconstitute at least some of the cellulose fibers, and the reconstituted fibers are wet-spun to form a continuous cellulose thread that is commercially indistinguishable from virgin fiber thread. Synthetic fiber material is vacuum-extracted or mechanically extracted from the cellulose-bearing solution and recycled into a continuous synthetic thread. Original color of textile-waste-to-be-recycled can be retained or removed, and new color can be added.