Fundamentals of Textile Design 3(2+1)

Lesson 26: Synthetic Dyes

Acid (Anionic) Dyes

Acid dyes are used mostly on wool and silk but have no affinity for cellulosic fibers. They are also being more widely used for dyeing acetate, nylon, acrylics, modacrylics and spandex. Acid dyes are inexpensive and fairly fast to light, but they are not fast to washing and have only fair fastness to dry cleaning. They have low resistance to perspiration.