Acid dyes are primarily used to color protein fibers such as wool, silk, and leather, as well as synthetic fibers like nylon and some acrylics. They are called 'acid dyes' because they are applied from an acidic dyebath — not because they are corrosive. Common industries include textile manufacturing, leather finishing, paper coloring, and aluminum anodizing.

Acid dyes bond to fibers through ionic attraction and are best suited for protein and nylon fibers, while Reactive dyes form a covalent chemical bond with cellulosic fibers (i.e. cotton). If you are dyeing cotton, reactive or direct dyes are the better choice. For nylon or leather, acid dyes would deliver superior results.

No minimum order quantity is required on most of our acid dye SKUs. We supply both small sample quantities for trials as well as full bulk orders. Contact our team for immediate pricing information.

Yes. Chemworld's lab capabilities include custom acid dye blending and formulation. Our technical team can help you develop a color match for your process conditions and end-use applications.

Acid dye powders should be stored in a cool, dry place, away from direct sunlight and moisture. Keep containers tightly sealed when not in use. Most acid dyes have a shelf life of 5+ years under proper storage conditions. Always review the SDS for specific handling guidance.

Yes! Chemworld ships acid dyes worldwide, including Canada, Mexico, South America, Europe, and Asia. Our logistics team handles customs documentation and can coordinate direct shipments from our overseas manufacturing plants for large-volume orders.