Acid Dye

To dye protein fibers such as wool, silk etc, the acid dye is used. And also to dye milk protein fiber which is called Silk Latte, Soy protein fiber called soy silk and also the synthetic polyamide fiber nylon.
Acid dyes are generally classified into three classes based on:
  1. Fastness requirements.
  2. Economy.
  3. Level dyeing properties.
  4. Acid dyes have a direct affinity towards protein fiber and polyamide fiber.
  5. Many bright shades are found.
  6. Some acid dyes have good light fastness.
  7. Water soluble.
  8. Maximum cellulose fiber can not absorb acid dye.
Trade names of Acid Dye:
Trade Name
Company Name
Country
Acid
 BASF
Germany
Lurazol
BASF
Germany
Acid
Bayer
Germany
Acilan
Bayer
Germany
Naphthalene
ICI
U.K.
Solvay
ICI
U.K.
Napthanol
Ciba-Geigy
Switzerland

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