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Acid Black is a type of acid dye commonly used in the textile industry for dyeing protein fibers such as wool, silk, and nylon. These dyes are water-soluble and are known for their deep, rich colors, particularly blacks and dark shades. Acid Black dyes work by forming ionic bonds with the fibers, resulting in vibrant and long-lasting color retention.
| Chemical Composition | Azo compounds |
| Solubility | Water-soluble |
| pH Range | 3 to 6 |
| Application Method | Exhaust dyeing or continuous dyeing |
| Color Fastness | Good to excellent light and wash fastness |
When selecting Acid Black dyes, consider the specific fiber types you will be dyeing as well as the desired color fastness properties. It's important to specify the application method, such as exhaust or continuous dyeing, as this can affect the dye's performance. Additionally, inquire about the dye's compliance with industry standards and certifications, especially if the end products will be used in sensitive applications.
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They are primarily used on protein fibers like wool, silk, and nylon.
Select dyes with good to excellent fastness ratings and follow recommended dyeing procedures.
They are not recommended for synthetic fibers; use disperse dyes instead.
The typical pH range is between 3 to 6.
Some Acid Black dyes may contain azo compounds which can be harmful; check for eco-friendly options.
Shelf life can vary, but typically they last for 1-3 years if stored properly.