[article]
| Titre : |
Laccase-catalysed coloration of wool and nylon |
| Type de document : |
texte imprimé |
| Auteurs : |
Chetna D. Prajapati, Auteur ; Edward Smith, Auteur ; Faith Kane, Auteur ; Jinsong Shen, Auteur |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 423-439 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Catalyse enzymatique
Colorimétrie
Composés aromatiques
CotonLe coton est une fibre végétale qui entoure les graines des cotonniers "véritables"(Gossypium sp.), un arbuste de la famille des Malvacées. Cette fibre est généralement transformée en fil qui est tissé pour fabriquer des tissus. Le coton est la plus importante des fibres naturelles produites dans le monde. Depuis le XIXe siècle, il constitue, grâce aux progrès de l'industrialisation et de l'agronomie, la première fibre textile du monde (près de la moitié de la consommation mondiale de fibres textiles).
Polyamide 66
Solidité de la couleur
Teinture -- Fibres textiles
Teinture -- Fibres textiles synthétiques
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
The potential for laccase (EC 1.10.3.2) to be used within the area of textile coloration, specifically for the generation of decorative surface pattern design, remains relatively unexplored. The current study presents a novel process for the coloration of wool and nylon 6,6 fibres via laccase oxidation of aromatic compounds as an alternative to conventional dyeing methods. Emphasis was placed on producing a diverse colour palette, which was achieved through the investigation of three different aromatic compounds as laccase substrates : 1,4-dihydroxybenzene, 2,7-dihydroxynapthalene and 2,5-diaminobenzenesulphonic acid. Reaction processing parameters such as buffer systems and pH values, laccase and aromatic compounds concentration, and reaction times were investigated, all in the absence of additional chemical auxiliaries. Enzymatically dyed fabrics were tested against commercial standards, resulting in reasonably good colour fastness to wash. To demonstrate the coloration and design potential by laccase catalysation of aromatic compounds, specially constructed fabrics using a combination of undyed wool, nylon and polyester yarns were dyed using the one-step laccase-catalysed coloration process. The use of different fibre types and weave structures enabled simple colour variations to be produced. Shadow, reserve and contrasting effects were achieved with the laccase-catalysed dyeing process developed. Important advantages over conventional processing methods include the use of simpler and milder processing conditions that eliminate additional chemical use and reduce energy consumption. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Fabric preparation - Enzymatic dyeing (one-step in-situ dyeing process) - Colour measurement of dyed fabrics - Colour analysis of enzyme treatment liquor - Colour fastness of enzyme-dyed fabrics
- RESULTS AND DISCUSSION : Effect of pH and buffer systems on the activity of laccase towards aromatic compounds and the coloration of fibres - Analysis of laccase-catalysed colour in enzyme treatment liquors without fabrics - Effect of aromatic compound concentration - Effects of treatment time - Colour fastness - Effect of the amino groups of fibres on laccase-catalysed coloration - Design potential |
| DOI : |
10.1111/cote.12350 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12350 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31369 |
in COLORATION TECHNOLOGY > Vol. 134, N° 6 (12/2018) . - p. 423-439
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Laccase-catalysed coloration of wool and nylon in COLORATION TECHNOLOGY, Vol. 134, N° 6 (12/2018)
