Yellow lyocell fabric prepared by dyeing osmanthus fragrans with vegetable dye and preparation method of yellow lyocell fabric
A technology of vegetable dyes and sweet-scented osmanthus, applied in dyeing methods, reactive dyes, azo dyes, etc., to achieve the effect of simplifying the dyeing process, high K/S value, and reducing environmental pollution
Pending Publication Date: 2021-03-16
WUHAN TEXTILE UNIV
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Abstract
The invention relates to a yellow lyocell fabric prepared by dyeing osmanthus fragrans with a vegetable dye and a dyeing method of the yellow lyocell fabric. The method comprises the following steps of extracting a yellow vegetable dye stock solution from osmanthus fragrans by steam distillation, and grafting yellow pigment in the stock solution with 1-amino-2-sulfate ethyl sulfone ethane to prepare a yellow vegetable dye modified solution; and finally, dyeing the lyocell fabric in the yellow vegetable dye modified solution to obtain the yellow lyocell fabric. Yellow pigment in osmanthus fragrans with low reaction activity is changed into natural dye with high reaction activity; in addition, other mordant, dyeing accelerant and other dye assistants do not need to be added in the dyeing process, the dyeing process is simplified, the cost is saved, and meanwhile, environmental pollution caused by dyeing is reduced; and the dyed yellow lyocell fabric has a relatively high K/S value, and is relatively high in soaping discoloration resistance fastness and dry rubbing resistance color fastness.
Application Domain
Reactive dyesDyeing process
Technology Topic
SulfoneOsmanthus fragrans +4
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