Method for preparing a cellulose dope

A method for preparing cellulose dope from textile waste comprising cellulose fibers in a mass percentage greater than 50%, the method comprising the following steps:

• step (S1) shredding the textile waste in order to obtain a first mixture of shredded fibers and residues,
• step (S2) separating at least a portion of the non-cellulosic components from the first mixture in order to obtain a second mixture in which the mass percentage of cellulose fibers is greater than the mass percentage of cellulose fibers in the first mixture,
• step (S3) filtering the second mixture in order to recover a solid phase comprising the cellulose fibers,
• step (S4) dissolving the cellulose fibers of the solid phase so as to obtain a cellulose dope comprising undissolved particles, and
• step (S5) filtering the cellulose dope in order to obtain a cellulose dope that is separated from the undissolved particles.