The main aim of my question is making the nontoxic dyes from available fruits or crops in a way that everybody can do it in home.
Dear Dr Olga
If the color of flowers or crops b not toxic , and could be used in fppd and cosmetic is better in fact.
Best regards
Parisa
Dear Parisa Ziarati, For an organic nontoxic dye the use of anthocyanin is a possibility. This would use extraction from purple sweet potatoes the colors will be from pink to blue depending on the pH. Other organic natural dye would include carrot carotenoids for orange. Tumeric for yellow Spinach for green from chlorophyll Good luck on your project.
ِAlso,you can extract anthocyanin dye from cheap plants, Roselle and Red Beet
Hassan Alshamsi is totally right many are getting red pigment out of beets and hibsicus flowers. Since hibscus is perennial the cost might be quite low. Flowers however would probably need hand harvest while beets and sweet potatoes are mechanizable with some equipment. Beets can be seed planted and sweet potato need stem sections all of these along with the extraction method would determine the cost and logists. In the case of sweet potato and i would think beets a hot 60 C acidified ethanol solvent would readily extract the colorant material. The final acidity can greatly change the color and the stability of the colors.
Dear All colleagues
Many thanks for your great help. I really appreciate them. How about other flowers and plants?
Dear Dr Ziarati, the leaves of Lawsonia inermis also produce a good decorative colouring natural dye.
Dear Prof. Ghazali
Thanks for your help. You always give great ideas.
hi
also, saffron and some kiinds of Echium petals can be used
سرکار خانم زیارتی
سلام
بنده در کتاب کاربردهای گیاهان دارویی چاپ 1382 جدولی تنظیم کرده ام که برخی از این مواد را شرح داده ام می توانید به آن مراجعه کنید.
Prof. Davazdahemami
Many thanks for your comment.
Best Wishes
Parisa Ziarati
I asume you would be using local crops and flowers. Is the color to be used in food or cosmetics???. What are the quantities you want to produce??. Time, versus cost may be something to consider. Best
Dear Dr Olga
If the color of flowers or crops b not toxic , and could be used in fppd and cosmetic is better in fact.
Best regards
Parisa
Dear Dibaker and Salami
Many thanks for you help. I really appreciate your comments.
Best Wishes
Parisa
Turmeric, tea powder(black,green), saffron ,beat root,black pepper,pomegranate,spinach
The indigo plant can give a blue color. Generally the plant is extracted in water and then soda ash is used to adjust the solution to over 9 pH which will precipitate the pigment in a sludge.
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