DIRECT DYES
- Product Name
- DIRECT DYES
- Chemical Name
- DIRECT DYES
- Synonyms
- DIRECT DYES
- CBNumber
- CB7524073
- Formula Weight
- 0
- MOL File
- Mol file
DIRECT DYES Chemical Properties,Usage,Production
Uses
Direct dyes are water-soluble anionic dyes, but are not classified as acid dyes because the acid groups are not the means of attachment to the fiber.
Uses
They are used for the direct dyeing of cotton and regenerated cellulose, paper, and leather. They are also used to dye union goods (mixed cotton, and wool or silk) and to a lesser extent nylon fiber. Most of the dyes in this class are polyazo compounds, along with some stilbenes, phthalocyanines, and oxazines. The solubility of the dye in the dye bath is often reduced by adding common salt or Glauber's salt. The presence of excess sodium ions favors establishment of equilibrium with a minimum of dye remaining in the dye bath.
Definition
A group of dyes that are mostly azo-compounds derived from benzidene or benzidene derivatives. They are used to dye cotton, viscose rayon, and other cellulose fibers directly, using a neutral bath containing sodium chloride or sodium sulfate as a mordant.
DIRECT DYES Preparation Products And Raw materials
Raw materials
Preparation Products
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