FAQ: How to dye nylon or polyamide Nylon, a synthetic fiber also sometimes labeled as polyamide, can be dyed with either of two completely different
dye classes, acid dyes and disperse dyes. Both of these types of dye require the application of heat to fix the dye to the nylon, so be sure the item
you are dyeing can withstand the heat called for in the recipe you choose. (This is a problem for nylon/Lycra blends, as the spandex fiber is
heat-sensitive, made from polyurethane fiber. Use acid dyes on these blends, and carefully avoid stressing the fabric while it is hot, such as by
twisting or stretching; temperatures above that indicated on the garment's care label (usually 105°F) may deform the shape of the garment.)
Some surface fabric treatments may prevent nylon from 'taking' dye. Dye only fabrics that are free of treatments that provide stain
resistance or water repellency, such as Teflon coating. . |