Method for decolorizing polyester fabric and polyester fabric
US12331458B2 · kind B2 · utility
0Cited by
5References
13Claims
0Family size
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Key dates
| Filing date | Apr 19, 2023 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Nov 3, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/62
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for decolorizing polyester fabric and a polyester fabric are provided. The method for decolorizing polyester fabric includes providing a dye-attached polyester fabric. The dye-attached polyester fabric is immersed in a first solution, obtaining a treated polyester fabric. The treated polyester fabric is immersed in a second solution, to obtain a decolorized polyester fabric. The first solution includes water, a first swelling agent and a solubility promoter. The second solution includes water, a second swelling agent, and an auxiliary swelling agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.