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US 2024/0044069 A1Published application
Method for decoloring of a textile material
AssigneeSöDra SkogsäGarna Ekonomisk FöRening
InventorsJim Parkås, Anna Palme, Harald Brelid
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Abstract
The invention concerns a method for decoloring of a textile material, the method comprising the steps of: providing a textile material; providing an alkaline solution containing one or more anionic polyelectrolytes; treating the textile material in the alkaline solution during a treatment period; and recovering at least some of the textile material from the alkaline solution.
Claims21
A method for decoloring of a textile material, the method comprising the steps of:
- providing a textile material, at least a portion of the textile material being colored;
- providing an alkaline solution containing one or more anionic polyelectrolytes;
- treating the textile material in the alkaline solution during a treatment period of at least 10 minutes at a temperature in the range of from 100° C. to 180° C.;
- and
- recovering at least some of the textile material from the alkaline solution after the treatment period.
2 more elements
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Dependencies are inferred from the claim text.