Definition

Noun: A type of dye in which the colored component (chromophore) is part of a negatively charged ion (anion). Acid dyes are typically used to color protein-based fibers like wool, silk, and nylon, as well as some synthetic fibers, from a bath containing an acidic solution.

Usage

Acid dyes are primarily used in industrial and craft dyeing processes. They require an acidic environment (often created with vinegar or citric acid) to bond effectively with the fibers. - The artisan used an acid dye to achieve vibrant colors on the silk scarf. - Acid dyes are essential for coloring wool in the textile industry.

Advanced Usage

• Technical Application: In a laboratory or industrial setting, the term specifies the dye's ionic nature and its affinity for specific substrates under acidic conditions.
  • The fabric's composition determines whether a basic dye or an acid dye is more appropriate.

Variants and Related Words

• Anionic Dye: A more technical synonym for acid dye, emphasizing its negative charge.

Synonyms

• Anionic dye

Antonyms

• Basic Dye: A type of dye in which the chromophore is part of a positively charged ion (cation), used for different materials like acrylic fibers.

Noun

1. dye in which the chromophore is part of a negative ion