PFD (prepared for dye)

PFD stands for prepared for dye: fabric or cut-and-sewn blanks that have been scoured and bleached to strip out natural cotton waxes and impurities, but deliberately left without the optical brighteners, softeners, or other finishing chemicals that standard retail-ready blanks carry. That bare, additive-free surface takes dye evenly across the whole garment, where a finished blank dyed the same way often comes out blotchy because brighteners and silicone finishes resist the dye unevenly.

Tie-dye kits and custom garment-dye shops buy PFD tees almost exclusively, in blanks like a plain 100% cotton 5.3 oz tee sold specifically as PFD stock, because the few cents saved on a standard blank is nothing next to a ruined dye batch. We ran a box of standard retail blanks against PFD stock in the same ice-dye bath once: the PFD shirts took color evenly across the whole garment, and the retail ones came back with pale streaks everywhere the factory finish hadn't fully washed out.

Spec PFD any time a garment is headed into a dye process after you receive it — tie-dye, ice-dye, shibori, full garment-dye. Don't substitute a blank just because it's already white; PFD is a specific manufacturing spec, not a color, and a white PFD shirt and a white retail shirt are not interchangeable once dye enters the picture.

White cotton looks dye-ready by default, so buyers skip the PFD check. Without that prep, residual brighteners and finishing chemicals block or unevenly absorb the dye, producing the muddy, patchy results that usually get blamed on the dye brand or the technique when the blank itself was the problem.