Dyes natural – pigments derived from organic materials such as vegetables, berries, bugs, clay, indigo, and other plant extracts to dye fabric. The weakness of natural dyes has been that many natural dyes are not color-fast and wash out of the garments quickly. Clay dyes are some of the best in retaining their color across repeated washing. See Colour Index (CI), Madder, Mordant and Fixation.
TEXTILE DYE OVERVIEW