Synthetic Dye

Synthetic aniline dyes became available in Morocco in the late nineteenth century. Their adoption was rapid because they were cheaper, more consistent, and easier to use than natural dye processes. By the mid-twentieth century, synthetic dyes dominated most commercial Moroccan rug production.

In Amazigh weaving traditions, synthetic dyes appear from roughly the 1920s onward, with the exact date varying by region and community. Their presence is not a disqualification, many excellent pieces use synthetic dyes, but it is documented honestly because it affects how the rug ages.

Synthetic dyes fade more uniformly than natural dyes: the colour weakens but the relationship between colours remains constant. Natural dyes age selectively, some deepen, some fade, some shift in hue. A well-preserved vintage piece with early stable synthetic dyes can still be an excellent piece; a piece with later synthetic dyes that have faded unevenly is less desirable.