In case you ever wanted to dye your vintage nylon slips — perhaps to hide some discolorations or to have more colors to choose from than basic white and ivory — here’s a little video for you that I found on YouTube:
Most all purpose dyes, such as Rit dye and Dylon’s Multipurpose dye, contains two kinds of dye, mixed together – ‘direct’ dye which does a fair job of dyeing cotton, and ‘leveling acid’ dye which will dye both wool and nylon. It is best to use pure acid dyes on nylon, instead, as you can see more clearly what color you will end up with, and you avoid wasting money on the direct dye portion that cannot stick to nylon, and you can choose to use acid dyes about which more detailed information is available. However, if you are in a hurry and do not wish to wait for mail-order, all purpose dye is readily available in many grocery stores and pharmacies.
So, it seems that you can really go green — both in terms of the color of your slip and saving some ‘green’ in your wallet — with an acid dye like Jacquard Acid Dyes.
Jacquard Acid Dyes are concentrated, powdered, hot water dyes — the only acid involved is the vinegar you add. A 1/2 ounce bottle will color up to 2 pounds of fiber and you can also paint with these dyes. Extremely brilliant and colorfast they produce a uniform, beautiful, pure & vibrant transparent color on most nylons.