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Carte Universal dyeing compositions for dyeing textile materials Shaira Majidova

Universal dyeing compositions for dyeing textile materials

Autor: Shaira Majidova
Limbă: engleză
Legare: Carte broșată
Editura: Our Knowledge Publishing
Disponibilitate: În depozitul extern
Expediem în 5-8 zile
129.70 lei
Application of salts of monovalent copper for dyeing polyacrylonitrile (PAN) fibers with anionic dye...

Informații despre carte

Autor
Shaira Majidova
Limbă
engleză
Legare
Carte - Carte broșată
Publicat
2022
Pagini
60
EAN
9786205165348
ISBN
6205165341
Enbook ID
41574045
Editura
Our Knowledge Publishing
Greutate
107
Dimensiuni
150 x 220 x 4

Descriere completă

Application of salts of monovalent copper for dyeing polyacrylonitrile (PAN) fibers with anionic dyes has been known for a long time. Thus, Feld and Fremont [1] were the first to discover that some acidic and direct dyes under certain conditions can bind to PAN fibers. They believed that the dyeing process of these fibers in the presence of copper is similar to the dyeing process of wool with acid-etching dyes, i.e. as a result of dyeing, copper ions form complex compounds with dye molecules and amino groups of polyacrylonitrile macromolecules. The amino groups, as well as carboxyl groups, can be formed due to hydrolysis of nitrile groups. As shown by our studies, oxidation of partially hydrolyzed in aqueous sulfuric acid solution of PAN fiber with sodium hypochlorite increases the content of amino groups in it.

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