Anionic dye is in relation to a type of dye which dissociates in aqueous solution to give a negatively charged coloured ion.

Anionic dyes are a type of dye that have negatively charged ions and are commonly used in the textile industry to color natural and synthetic fibers. They are also used in paper, leather, and other industries that require dyeing.

Here are some examples of anionic dyes:

  1. Acid dyes: Acid dyes are a type of anionic dye that are used to dye protein fibers such as wool, silk, and nylon. They are also used in the food industry to color products such as candies and beverages.

  2. Direct dyes: Direct dyes are another type of anionic dye that are used to color cotton, viscose, and other cellulosic fibers. They are also used in the paper and leather industries.

  3. Reactive dyes: Reactive dyes are a type of anionic dye that react chemically with the fibers they are applied to. They are commonly used to dye cotton, wool, and silk and are known for their excellent wash and light fastness.

  4. Metal complex dyes: Metal complex dyes are a type of anionic dye that contain a metal ion in their structure. They are used to color synthetic fibers such as polyester and are known for their excellent wash fastness.

Anionic dyes are known for their bright and vibrant colors, and they are commonly used in the textile industry to create a wide range of hues. However, they can be problematic in terms of environmental impact, as they can be difficult to remove from wastewater and can have harmful effects on aquatic life. Efforts are being made to develop more sustainable and eco-friendly dyeing processes in the textile industry.

Ref: 123503/2006-10-15

Other Database Pages Exist for this Phrase:
Acid dye (Acid dye is an anionic dye characterised by ...)
Direct dye (Direct dye refers to an anionic dye having ...)
Aqueous (An Aqueous is something made up of water. ...)

You have no rights to post comments

Related Articles

Fiber ■■■■■■■■■■
Fibe is a bundle of optical fibers Fiber (from the French fibre) is a rope or string used as a component . . . Read More
Fabric ■■■■■■■■■■
A fabric, textile or cloth is a flexible woven material consisting of a network of natural or artificial . . . Read More
Phosphate ■■■■■■■■■■
In chemistry, a phosphate is an anion, salt, functional group or ester derived from a phosphoric acid. . . . Read More
Polymerization ■■■■■■■■■■
Polymerization is a chemical process in the industrial context that involves the combination of small . . . Read More
Anode ■■■■■■■■■■
An anode is an electrode through which electric current flows into a polarized electrical device. The . . . Read More
Silk ■■■■■■■■■■
Silk is a natural protein fibre, some forms of which can be woven into textiles. The protein fibre of . . . Read More
Polyester ■■■■■■■■■■
Polyester is a category of polymers that contain the ester functional group in every repeat unit of their . . . Read More
Compound ■■■■■■■■■
In an industrial context, a compound is a substance that is made up of two or more elements that are . . . Read More
Chloride ■■■■■■■■■
Chloride: The chloride ion is formed when the element chlorine (a halogen) gains an electron to form . . . Read More
Chlorine ■■■■■■■■■
Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, . . . Read More