Time for experimenting with madder & weld! Once again, we prepped the Dye Lab and eagerly awaited for our participants to arrive.
When everyone had arrived and was debriefed on what we would be doing, we handed it over to them! The experiments for madder & weld were comparatively much simpler than the indigo experiment. Instead of having to worry about mixing chemicals and waiting for PH levels to even out, all that was necessary was to mix chalk with water and the pigment extract with water before combining them and putting them into the vat, and giving the vat a good, but gentle, stir.
We decided to use extracts of the plants rather than the ground plant itself because of time constraints. In the case of both madder and weld, to use the plant would take a couple of days to yield viable colour. The extracts take a couple of hours from start to finish. (Longer if you want to go for deeper shades.)
To give the dye vats a chance to settle, we also gave this group a short presentation on EMPP, our goals, the history of madder & weld, and a quick introduction to medieval colour recipes. Then, it was back to the lab to put the wool into the dye vat.
After awhile, we decided to add more extract to the madder vat in the hopes of expediting the process of getting a deeper red, as we seemed to be stuck on a deep shade of dusty rose.
Ultimately, we ended up with a very vibrant yellow from the weld. And the madder gave us a range of reds. We also had some mordanted wool that we had dyed indigo on Day One that we over-dyed with the weld, which yielded several shades of yellow and green on the one skein, dependent on how evenly the indigo had dyed.
Once all of the participants had left, our team cleaned the Dye Lab and took all of the yarn to the Greenhouse, where we hung it over the rafters so that it would dry in the coming days. (And maybe inspire the plants to grow a little more.)
While we were there, we checked on our seedlings, watering where necessary. And after some more debate and comparison, we decided that maybe, just maybe, that one plant that wasn’t labelled was madder!
We hope everyone who participated enjoyed the workshops and everyone else enjoyed hearing about them. Our team is ready to dye again, and experiment with other possibilities with the pigments.
Look out for information on how to get involved in our next workshops!
In the meantime, though, if you’d like to try your hand at home dyeing, we have been using Wild Colours (wildcolours.co.uk) for both our seeds and our dyeing supplies, and can recommend their home dyeing kits for an afternoon of fun.