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Modification of polypropylene fibres with cationic polypropylene dispersion for improved dyeability / Amalid Mahmud-Ali in COLORATION TECHNOLOGY, Vol. 134, N° 5 (10/2018)
[article]
Titre : Modification of polypropylene fibres with cationic polypropylene dispersion for improved dyeability Type de document : texte imprimé Auteurs : Amalid Mahmud-Ali, Auteur ; Tom Wright, Auteur ; Tung Pham ; Thomas Bechtold Année de publication : 2018 Article en page(s) : p. 400-407 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Dispersions et suspensions
Polymères en émulsion
Polypropylène
Teinture -- Fibres textiles synthétiques
Traîtements de surfaceIndex. décimale : 667.3 Teinture et impression des tissus Résumé : Polypropylene (PP) fibres are important hydrophobic fibres which are used in the production of functional textiles such as sports textiles. The absence of functional groups and low polarity make PP fibres difficult to dye, thus mass coloration during fibre extrusion is the major technique applied today. However, the disadvantage of mass coloration is the low flexibility and the demand to produce high volumes. A new method to modify the surface of PP fibres utilises the deposition and thermal fixation of cationic PP dispersion. Through padding and thermal fixation of a cationic PP dispersion, dyeable 100% PP fibres can be obtained. The effects of fixation temperature, and of the amount of dispersion used on the modified fibres were studied using Fourier Transform‐infrared spectroscopy, laser scanning microscopy, dyeing experiments with CI Acid Red 151, and by determining selected fastness properties. The results indicate the potential of this new method to produce surface‐modified 100% PP fibres, which can be dyed in conventional acid‐dyeing processes and therefore used in fibre blends, for example in combination with wool. Note de contenu : - EXPERIMENTAL : Materials - Fibre modification - Dyeing procedure - Colour measurement and photometry - Fastness measurements
- RESULTS AND DISCUSSION : Fastness properties - Treatment of fibre bandsDOI : 10.1111/cote.12354 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12354 Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31165
in COLORATION TECHNOLOGY > Vol. 134, N° 5 (10/2018) . - p. 400-407[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20217 - Périodique Bibliothèque principale Documentaires Disponible Reuse of ash-tree (Fraxinus excelsior L.) bark as natural dyes for textile dyeing : process conditions and process stability / Thomas Bechtold in COLORATION TECHNOLOGY, Vol. 123, N° 4 (2007)
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Titre : Reuse of ash-tree (Fraxinus excelsior L.) bark as natural dyes for textile dyeing : process conditions and process stability Type de document : texte imprimé Auteurs : Thomas Bechtold, Auteur ; Rita A. M. Mussak, Auteur ; Amalid Mahmud-Ali, Auteur Année de publication : 2007 Article en page(s) : p. 271-279 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : The aqueous extract of ash-tree bark (Fraxinus excelsior L.) was chosen as a model to study the shade reproducibility of dyeing on wool. A meta-mordanting process using FeSO4·7H2O mordant was chosen as a system with particular potential for industrial application. The exhaust dyeing process with immediate use of the extracts as a dyebath and direct addition of FeSO4·7H2O stock solution as a meta-mordant process showed good shade reproducibility and satisfying levelness of the dyed material. An increase of Fe(ii)-mordant above a dyebath concentration of 2–3 g l-1 did not result in further colour depth. Extraction of 1–2 g of bark was found sufficient to dye 1 g wool yarn to the darkest colour possible ; use of higher amounts of bark did not yield substantially higher colour depth. The quality of bark and the extraction step were found to be of significant importance for the colour depth ; thus, in an optimised process, conditions of extract formation have to be well controlled. DOI : 10.1111/j.1478-4408.2007.00095.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00095.x/pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3530
in COLORATION TECHNOLOGY > Vol. 123, N° 4 (2007) . - p. 271-279[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 008145 - Périodique Bibliothèque principale Documentaires Disponible