| Titre : |
The relationship between the substitution position of hydrophobic groups on near-magenta anthraquinone dyestuffs and the dyeing performance for polypropylene fabric dyed in supercritical carbon dioxide |
| Type de document : |
texte imprimé |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 538-550 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Anthraquinone
Colorants -- Analyse
Couleur -- Analyse
Dioxyde de carbone
Fluides supercritiques
MagentaLe magenta est un colorant rouge violacé d'aniline de synthèse inventé en 1858, appelé fuchsine ou roséine. C'est aussi la désignation normalisée du colorant primaire absorbant le vert dans la synthèse soustractive des couleurs en imprimerie et en photographie argentique.
Polypropylène
Teinture -- Fibres textiles synthétiques
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
A series of 1-amino-4-hydroxy-2-phenoxyanthraquinone derivatives, substituted with various hydrophobic groups, were applied as dyestuffs in the carbon dioxide supercritical fluid dyeing (SFD) of unmodified polypropylene (PP) fabrics. The dyeability, colour strength, and colour fastness of the dyeing process were evaluated for 14 dyestuffs. The hue of the PP fabrics dyed with a series of dyestuffs was red of near-magenta, but it was slightly less bluish rather than magenta. The differences in dyeing performance regarding the type and position of the substituents were observable in terms of colour strength and colour fastness. On the basis of the evaluation of the colour strength and the colour fastness, this study showed that the type and position of the hydrophobic group attached to the substituted phenoxy ring affected dyeing performance. Comparisons of the dyeing performance of 2- and 4-substituted dyestuffs with the same groups attached suggested that replacement of the 2-position affected colour strength while 4-position affected colour fastness. Similarly, 2,4-disubstituted dyestuff was more suitable on the dyeing performance than 4-monosubstituted dyestuff in which alkyl had twice the amount of aliphatic carbon at one position, and 3,5-disubstituted dyestuff. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Methods
- RESULTS AND DISCUSSION : The analysis of dyestuffs - The structural characteristic indices of dyestuff molecules - Colour strength and hue - Colour fastness and dyestuff structure - Optimum dyestuff selection
- Table 1 : The substituent groups and their positioning for the dyestuffs used in this study
- Table 2 : The proton nuclear magnetic resonance (1H NMR) chemical shift peaks of the employed dyestuffs and their high-performance liquid chromatography (HPLC) purity
- Table 3 : The hydrophobicity and aliphaticity of the dyestuffs used in this study
- Table 4 : The colour fastness of the dyed polypropylene (PP) fabrics |
| DOI : |
https://doi.org/10.1111/cote.12610 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12610 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38127 |
in COLORATION TECHNOLOGY > Vol. 138, N° 5 (10/2022) . - p. 538-550
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The relationship between the substitution position of hydrophobic groups on near-magenta anthraquinone dyestuffs and the dyeing performance for polypropylene fabric dyed in supercritical carbon dioxide in COLORATION TECHNOLOGY, Vol. 138, N° 5 (10/2022)
