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portada Universal dyeing compositions for dyeing textile materials
Type
Physical Book
Author
Publisher
Language
English
Pages
60
Format
Paperback
Dimensions
22.9x15.2x0.4 cm
Weight
0.10 kg.
ISBN13
9786205165348
Categories

Universal dyeing compositions for dyeing textile materials

Shokhista Nigmatullayevna Rasulova (Author) · Shaira Majidova (Author) · Our Knowledge Publishing · Paperback

Universal dyeing compositions for dyeing textile materials - Rasulova, Shokhista Nigmatullayevna ; Majidova, Shaira

New Book Imported to Austria
Delivery: 27 Oct - 29 Oct Shipping: 14 to 15 business days.
39,95 €
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Synopsis "Universal dyeing compositions for dyeing textile materials"

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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