These are the dyes we use for everything we dye! They are Jacquard Acid Dyes and they are concentrated, powdered, hot water dyes that give vibrant colors on wool. As with any Acid dye the only acid involved is the vinegar or citric acid used to set the color. I find that these are much more concentrated that other dyes. We stock all 40 colors in half once jars. These are 1/2 ounce bottles, no messy bags to deal with. Acid dyes are made for dyeing wool, silk and other protein fibers, and nylon, and nothing does it better!
If you have skeins of yarn or yards of fabric to dye, these are my dyes of choice. They are intended for dyeing yardage, yarns or clothing. They are fun to use in direct application methods (like painting) and steam-setting also.
These dyes are bright, economical, and they exhaust well. Because of that and the fact that you can use them with common Vinegar, they are considered a "low impact" dye.
Their black will go down to a soft light gray with no purple notes!