DECOLORIZATION METHOD OF POLYESTER FABRIC
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United States of America
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Issued Date -
Jan 9, 2025
app pub date -
Aug 8, 2023
filing date -
Aug 8, 2023
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Abstract
A decolorization method of a polyester fabric, including the following steps, is provided. A first extraction treatment is performed on the polyester fabric using a recycled solvent, so that a first portion of a dye in the polyester fabric moves into the recycled solvent. A first filtering treatment is performed on the recycled solvent and the polyester fabric to obtain a treated polyester fabric. A second extraction treatment is performed on the treated polyester fabric using a fresh solvent, so that a second portion of the dye in the treated polyester fabric moves into the fresh solvent. A second filtering treatment is performed to obtain a decolored polyester fabric and the recycled solvent.
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