Thursday 13th of November, students from the University of Otago and Professor Dave came to teach my class how to make indigo coloured dye.
The team introduced themselves;
The professor’s name was Dave, and the other people’s names were Sam, Samantha, Liam, Josh and Jake.
After that, we got into groups of four and three, put on safety glasses and gloves and got into it. My group came over to a table and it had a beacon, a cup of water, a weigher and an empty cup. We had to weigh this yellow stuff (that I think was the starter for the dye) and make it weigh 0.01g.
After we did that, we added some water and another cup of some strange smelling chemical to the dye starter and mixed it. Then Sam said to bring the cup over to this cooker thing and we cooked it until it was shiny and turned black.
We moved the cup over to a drainer and drained it. We did that until it turned from a liquid to a powder. We scraped the powder off the paper and it was a very dark blue. We repeated the procedure again, boiled it and waited some more.
Sam said that the liquid should turn yellow once it boiled, but the weigher that we used wasn’t good, so when we dipped our fabric in, it was a pale grey. When the rest of my group unwrapped the fabric, it flopped. Mine looked grey at first, but then after it had some oxygen, it was blue.
I found it really fun when the yellow liquid turned blue but the smell was horrid. Here is the final result.










