Dye Blue
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Can you make blue dye from Jatropha Curcas (Physic Nut) and How?
I've read that you can get blue dye from the bark Jatropha Curcas except I've tried a few methods but it doesn't seem to work. Any suggestions on what to do or a procedure to derive the blue color from the bark?
There are a lot of publications, that the bark of Jatropha Curcas contains 37% tannin and yields a dark blue dye, which is used for colouring cloths, fishing nets and lines( under 7.5http://www.tifac.org.in/news/Bioenergy_1.htm ).
But the only site describing the preparation is this one:
http://www.wigsat.org/gasat/papers1/19.txt, where you find under "procedure for making gara" and "preparation of the dye bath" a mixture of several plants incl. Jatropha.
Could be the method works without the other ingredients too.
JAPADAPTA MIXED BY DJ DYE[THA BLUE HERB] PV
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