For bio dyes, I used animal, protein fibre (80% wool, 20% silk) and vegetable, cellulose fibre (100% cotton) bases. The mordant that I used was Tartaric Acid with hibiscus die, and acidic apple vinegar modifier, with time as a variable as well.

• It is important to label each fibre. I used a waterproof plasticized labeler
• Important to weight the fibres, and take an average to later measure the amount od mordant to put in

FOR COTTON:

1. Boil the 8 fibre strips for an hour in the wash with 1 spoon of baking soda.
2. I separated half to put in a boiling water with 6% of the net weight (0.135g of Tartaric Acid in 500mL of water)
3. Due to transport, I added the dye after 2 days. I boiled water and then letter it simmer on the hibiscus (around 100mL in half a cup of hibiscus flowers) for 30 minutes. Then I added the fibres and let them simmer for 45 minutes and afterwards left them overnight.
4. After 14 hours I removed half
5. After 20 hours I removed the other half
6. I got half of those, and simmered them in 4 spoons of apple vinegar for 5 minutes, with the hibiscus liquid.

FOR WOOL/SILK:

1. I washed the fibres gently with lukewarm water from the tap, and a little bit of detergent.
2. I separated half to put in a boiling water with 6% of the net weight (0.105g of Tartaric Acid in 500mL of water)
3. Due to transport, I added the dye after 2 days. I boiled water and then letter it simmer on the hibiscus (around 100mL in half a cup of hibiscus flowers) for 30 minutes. Then I added the fibres and let them simmer for 45 minutes and afterwards left them overnight.
4. After 14 hours I removed half
5. After 20 hours I removed the other half
6. I got half of those, and simmered them in 4 spoons of apple vinegar for 5 minutes, with the hibiscus liquid.

-when putting in the dyes, all the fibres were in the same boiling container

14 (14 hours), 20 (20 hours), V (vinegar as modifier), M: (mordant added). Mordant is Tartaric Acid

cotton 20 cotton M 20 cotton V 20 cotton V M 20

cotton 14 cotton M 14 cotton V 14 cotton V M 14

wool 20 wool M 20 wool V 20 wool V M 20

wool 14 wool M 14 wool V 14 wool V M 14

Ingredients: 1 L of milk

1. 1 litre of milk is brought to boiling point
2. 4 splashes of vinegar are added after boiling
3. Silicon spray is put in the plastic petri dishes (this allows for no stick)
4. For colorants: turmeric (1:1 ratio with water), 2g of glycerol were added in a full petri dish, 12 g of paprika (in 15ml of water), and completely covered onion skin

From left to right: control, with glycerol, paprika, curcuma, onion peel

The texture was the same in all of them: grainy, very brittle

In my final project I will look into bioplastics, therefore more of myr recipes will be found on that wiki page: http://wiki.textile-academy.org/fabricademy2017/students/ronga.elisa/week1333