It was a good day. We spent a while talking about some general concepts concerning discharge, but the real thrust of the day was making the first round of samples. We dyed samples of all of the pure MX dyes and all of the PRO Chem blacks on both silk and cotton, then discharged those along with some commercial black samples with thiox, chlorox, and deColourant (that new stuff that everyone's so excited about). I've done little tests before--a dab of bleach on the edge of a piece of cloth to predict what I might get before embarking on a broader application. But, I've never done so many samples at a time or with such a broad range of colors. It's amazing to see all of the possibilities. Tomorrow everything gets assembled into a sample book, which we'll use to make design decisions for the rest of the week.
One little technical observation from today was that bleach has an expiration date after which it really doesn't work--REALLY. We ended up with a bottle of Chlorox that expired in April. I saw hand-dyed samples dropped into a very strong bleach solution that lost almost no color. Mixing a new solution with fresh bleach make a big difference. I'll be checking my bleach when I get home.
Sorry, no pictures today. I'll try to do a better job with that tomorrow.