NYC's very own Swift Yarns!
Here's how Carol, the founder of Swift Yarns, describes their dyeing process:
"We are proud of the love and care that goes into each skein of yarn here at Swift Yarns. We use professional low impact acid dyes and a variety of immersion and low immersion techniques to create our repeatable and special edition yarn colors.
"Our yarns are dyed two at a time to ensure consistency in the skeins, which is why we do not have any dye lots. We dye the yarns to exhaustion and then rinse the yarns. We do not use any wool washes as many contain some herbal additives or chemicals that may cause allergic reactions in some individuals."