Thursday, October 30, 2014

- Time lapse: Watching cochineal develop

I tried something different today: sequentially adding pictures of my cochineal dye experiment to document progress in (sorta) real time. This final top photo is where I ended up ... which will be all for today. Tomorrow, after all the cloth has thoroughly dried, I will wash it and post the results. In truth, the colors are very pastel, and I do have some thoughts about that ... but I'm very pleased with this first attempt at homegrown cochineal dyeing.

One final pass
Second dye trial with "tired" cochineal tea and freshly mordanted cloth (alum + tap water)

2 hours after immersion
Top half: #1 Alum (unrinsed)
Bottom half: #2 Alum + cream of tartar (unrinsed)
Note original scraps of cloth on the mid-left edge of picture


2 hours after immersion
Top half: #3 Alum + lemon juice
Bottom half: #4 Alum + steel wire and rusty nails
Note original scraps of cloth on the mid-left edge of picture


1 hour after immersion
Note addition of new cloth to the right mordanted in alum and tap water

30 minutes after immersion
with recent addition of rusty nails to #4


5 minutes after immersion
#1 Alum only

#2 Alum + cream of tartar
#3 Alum + lemon juice
#4 Alum + steel wire
Original piece of yellow linen used to collect cochineal beetles (unmordanted)



Recap of how it was all put together:

I removed the alum mordanted cloth (still wet) from the canning jars and staged it in bowls. Then I mixed up three additives:  1 tsp. cream of tartar in distilled water, 1/2 lemon freshly squeezed, and steel wire in distilled water. I also cadged a metal sink strainer from the kitchen ...



After heating up the cochineal tea (which had an indescribable, but not unpleasant aroma), I strained it into each jar ...


then added the cloth and mixed in each additive (leaving the first jar unadulterated as a control) ...

5 minutes after immersion
#1 Alum only

#2 Alum + cream of tartar
#3 Alum + lemon juice
#4 Alum + steel wire
Original piece of yellow linen used to collect cochineal beetles (unmordanted)


Color happened immediately, but the steel wire jar didn't seem to be doing much, so I looked around Don's work area for some rustier stuff ...

Grody metal thing found on our road trip ... too big

Assorted Junkology bits, tempting, but ...

That's it ... in the upper right hand corner ... tiny rusted nails!!

Success! Now I'm going to do some housework to keep me occupied so I stop messing with things. Whenever I get the urge, I'll post the most recent result at the top of this post.