| Titre : |
Supercritical carbon dioxide (SC-CO2) dyeing of cellulose acetate : An opportunity for a "greener" circular textile economy |
| Type de document : |
texte imprimé |
| Auteurs : |
Peter J. Broadbent, Auteur ; Chris M. Carr, Auteur ; David M. Lewis, Auteur ; Muriel Rigout, Auteur ; Ernst J. Siewers, Auteur ; Narjes Shojai Kaveh, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 475-488 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Acétate de cellulose L'acétate de cellulose est une matière plastique inventée en 1865. C'est l'ester acétate de la cellulose.
AlizarineL'alizarine est un colorant rouge d'origine végétale, extrait de la racine de la garance des teinturiers (Rubia tinctorum L.), une plante vivace de la famille des Rubiacées, autrefois largement cultivée pour la teinture qu'elle fournissait.
Colorants dispersésCatégorie de colorants très peu solubles dans l'eau, utilisés à l'origine comme colorants pour l'acétate, et qui généralement sont appliqués sous forme de suspensions aqueuses de faible concentration.Les colorants dispersés sont largement utilisés dans la teinture de la plupart des fibres manufacturées, surtout le polyester.
Dioxyde de carbone
Fibres polyesters
Fluides supercritiques
Mélanges de fibres
Solutions aqueuses (chimie)
Teinture -- Fibres textiles synthétiques
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
This article compares the dyeing of cellulose diacetate (cellulose-based) and polyester fabrics using supercritical carbon dioxide (SC-CO2) and aqueous media. The benefits of dyeing in SC-CO2 were clearly demonstrated in laboratory-based and pilot-scale studies in terms of increased colour strength, uniformity, fastness and the absence of auxiliaries such as dispersing agents or surfactants. In addition, the “super-levelling” nature of the SC-CO2 medium was demonstrated in the reprocessing of polyester “waste textile” and the re-use of the “locked-in waste” colourant. The SC-CO2 processing medium can be utilised to accurately colour “multiple life” polyester and cellulose acetate uniformly and to creatively tie-dye polyester and cellulose acetate fabrics. Through SC-CO2 fluid technology, we can envisage a viable waterless circular manufacturing and recycling/remanufacturing framework for the predominantly polyester global fibre market coupled to the sustainably sourced, biodegradable cellulose diacetate as a replacement for cotton. The key technical and commercial advantages being the use of a single solvent dye class for both polyester and the cellulose diacetate, saving on energy costs, integrated simpler processing, reduced water usage and associated efficient recycling. Further, repositioning the cellulosic fibre industry towards using sustainable forests is attractive in terms of improved land, water and environmental management. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Laboratory-scale SC-CO2 dyeing of cellulose diacetate fabric with Corangar dyes - Conversion of SC-CO2 Corangar dyes to analogous Leeds Disperse Dyes and laboratory-scale aqueous dyeing of cellulose diacetate fabric - Pilot scale SC-CO2 dyeing of Naia™ (cellulose diacetate) fabrics and recycled polyester/Naia blend fabric with Corangar dyes - Alizarin dyeing
“Superlevelling” of SC-CO2 Corangar and disperse dyes in SC-CO2 medium - Transfer printing - Colour wash fastness tests - Crock fastness - Light fastness
- RESULTS AND DISCUSSION : Overview - SC-CO2 dyeing of cellulose diacetate - Pilot scale dyeing of cellulose acetate (Naia) and recycled polyethylene terephthalate (RPET)/cellulose acetate (Naia) blend fabrics
- RECYCLING AND REMANUFACTURING IN POLYESTER AND CELLULOSE ACETATE : Superlevelling properties of SC-CO2 and potential for recycling/remanufacturing "waste" textiles - Novel structural dyeing (tie-dyeing) of fabrics in the SC-CO2 medium |
| DOI : |
https://doi.org/10.1111/cote.12690 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12690 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=39684 |
in COLORATION TECHNOLOGY > Vol. 139, N° 4 (08/2023) . - p. 475-488
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