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The infuence of metal complex dye stability and dye interaction in aqueous solution on within-skin, within-pack and pack to pack colour variation / W. R. Dyson in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 63, N° 1 (01-02/1979)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 63, N° 1 (01-02/1979) . - p. 1-5 Titre : The infuence of metal complex dye stability and dye interaction in aqueous solution on within-skin, within-pack and pack to pack colour variation Type de document : texte imprimé Auteurs : W. R. Dyson, Auteur Année de publication : 1979 Article en page(s) : p. 1-5 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Chélates Chrome Cobalt Colorants -- Stabilité Complexes métalliques Cuirs et peaux -- Teinture Cuivre Fer Ions cuivre Ions métalliques Solutions aqueuses (chimie) Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : - Chemical constitution of leather dyes: atomic absorption analysis - Stability of iron complex dyes to EDTA - Stability of iron cpmplex dyes to metal ions - Effect of EDTA and cupric ions on the dyeing performance of iron complex dyes - Effect of sequestrants on chromium, cobalt and copper complexes - Interaction between iron complex and copper complex dyes in aqueous solution Résumé: It has been shown that iron complex and many copper complex dyes are readily decomposed by sequestrants. In addition, iron complex dyes are readily decomposed by cupric ions. Hue changes occur on dye decomposition and these can give rise to unlevelness and colour variation in dyeing. Certain combinations of iron and copper complex dyes are unstable in aqueous solution at 60°C and this can result in pack to pack colour variation. Colour fastness may not be predictable from comparisons of manufacturer's ratings if decomposition has occured. Note de contenu : - Chemical constitution of leather dyes: atomic absorption analysis - Stability of iron complex dyes to EDTA - Stability of iron cpmplex dyes to metal ions - Effect of EDTA and cupric ions on the dyeing performance of iron complex dyes - Effect of sequestrants on chromium, cobalt and copper complexes - Interaction between iron complex and copper complex dyes in aqueous solution En ligne : https://drive.google.com/file/d/1OmU6R0VvyAquCOIP7KrJ2ntUyFruey0m/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30173 [article]

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