PFD is an acronym that stands for "Prepared for Dyeing". This fabric has been fully bleached but it hasn't been treated with brighteners or softeners that can interfere with the dyeing process.
Perfect for making clothing! Robert Kaufman Essex is the exact same fabric as Robert Kaufman Yarn Dyed Essex, the only difference between them is that this fabric is dyed AFTER the yarns are woven together. This results in a more uniform, solid appearance as opposed to the variegated look of the Essex Yarn-Dyeds.