Method for dyeing protein fiber fabric through natural plant dye
A technology of natural vegetable dyes and protein fibers, applied in natural dyes, dyeing methods, animal fibers, etc., can solve the problems of difficult control, indigo cannot be produced on a large scale, and achieve soft color, good dyeing effect, and environmental protection. Effect
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[0024] A method for dyeing protein fiber fabrics with natural plant dyes. The dyeing method includes preparing natural plant dyes from gardenias and dyeing protein fiber fabrics blue with the prepared natural plant dyes. The specific method steps are as follows:
[0025] (1) Take a certain weight of air-dried gardenias, crush the gardenias first, and then pass through a 15-30 mesh sieve to obtain crushed gardenias
[0026] (2) Put the crushed gardenia fruit into a container, add petroleum ether 5-8 times the weight of the gardenia fruit, ultrasonically extract for 40-60 minutes, filter under reduced pressure to obtain filtrate I and filter residue I; the filter residue I can be refilled into the container Inside, repeat the operation twice according to the above method, and the finally obtained filter residue I is used to prepare natural vegetable dyes; this step mainly uses petroleum ether to remove vegetable oil and pectin in the broken gardenia fruit, and the filtrate I obtained ...
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