Vegetable dye one-bath dyeing method for polyester and cotton blended yarns
The invention discloses a vegetable dye one-bath dyeing method for polyester and cotton blended yarns, and relates to the technical field of yarn dyeing. The method comprises the following steps of firstly pre-treating yarns, extracting natural vegetable dye by a supercritical CO2 extraction method,...
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Format: | Patent |
Sprache: | chi ; eng |
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