For Chatham, the machinery is key: today’s projects use the same century-old Davis & Furber carding apparatus as the original Chatham mill.
These Davis & Furber machines are no longer in production, and work with exceptionally wide four-foot wired rollers. Modern analogues are more narrow and typically use a slightly bowed roller, producing slightly tapered and inconsistent yarn, in turn limiting the specific tolerances of the finished textile.
(This is the kind of issue we encountered often in the research phase of the Field Company: modern foundry and machining equipment isn’t set up to create thin-walled or smooth machined cookware. Lost manufacturing capacity needs to be relearned or re-invented, and vintage machinery is worth its weight in gold.)
Precise control at the carding stage means Chatham can wind yarn with much tighter tolerances and create strong woven fabric from fine variable blends, in this case mohair and merino wool. The final stage is napping: a finishing process which creates a distinctive soft, fuzzy feel and accentuates the blanket’s heat insulation and moisture wicking properties.