An acid dye is a dye that is typically applied to a textile at low pH. They are mainly used to dye wool, not cotton fabrics. [1] Some acid dyes are used as food colorants, [2] [3] and some can …

2023年11月16日 · Acid dyes have a chemistry that makes them indispensable for colouring textiles. These dyes are a class of water-soluble anionic dyes known for their affinity to protein …

2012年1月10日 · Acid dyes are anionic in nature, and their negatively charged anions are attracted by positively charged amino groups in wool under acidic conditions. A common …

2024年7月6日 · Acid dyes have molecular weights in the range 300–1000 g mol-1. They create ionic bonds with fibre, hydrogen bond and Vander waals force of attraction also contributes. …

Acid dyes are mostly sulphuric or carboxylic acid salts and are essentially applied from an acidic bath and hence the name ‘acid dye’. The dye anion is the active coloured component in these …

2011年1月1日 · Acid dyes or anionic dyes include many compounds from the most varied chromophoric systems which exhibit characteristic differences in structure but possess as a …

2024年8月10日 · Acid dyes are water-soluble anionic dyes that require an acidic environment to bond with fibers. These dyes are primarily used for dyeing protein fibers like wool, silk, and …

Acid dyes represent a significant class of water-soluble dyes known for their affinity to protein fibers and certain synthetic fibers. These dyes contain acidic functional groups, primarily …

2012年1月20日 · Acid dyes are highly water soluble, and have better light fastness than basic dyes. The textile acid dyes are effective for protein fibers such as silk, wool, nylon and …

acid dye, any bright-coloured synthetic organic compound whose molecule contains two groups of atoms—one acidic, such as a carboxylic group, and one colour-producing, such as an azo or …