The inexact science of fabric dyeing

 The last month I've worked on a lot of color swatches with tub dyeing. Most of these were dyed for 24-30 hours in 2/3 cup chemical water (a mix of salt, soda ash, and water) and a half-plastic spoon of dye. The interesting thing about dye is that if you add two pieces of fabric at the same time to the same dye bath, each piece may come out a different color because of the way the dye fixes to the fabric. It's an inexact process, but I am getting a better understanding through these experiments. Now I'll have some good references for working with more fabric.