| Titre : |
Effects of alkali and ultraviolet treatment on colour strength and mechanical properties of jute yarn |
| Type de document : |
texte imprimé |
| Auteurs : |
Ali A. Zolriasatein, Auteur ; Mohammad Esmail Yazdanshenas, Auteur ; Ramin Khajavi, Auteur ; Abosaeed Rashidi, Auteur |
| Année de publication : |
2012 |
| Article en page(s) : |
p. 395-402 |
| Note générale : |
Errata (voir URL) - Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Bases (chimie)
Colorants réactifs
Essais dynamiques
Fibres végétales -- Propriétés mécaniques
Jute et constituantsLe jute est une plante herbacée de la famille des Malvacées, cultivée dans les régions tropicales pour ses fibres. Jute est aussi le nom donné à ces fibres textiles, appelées aussi chanvre de Calcutta.
Nom scientifique : Corchorus capsularis L., famille des Malvacées, sous-famille des Grewioideae ; la classification classique le situe dans la famille des Tiliacées. Une plante voisine, Corchorus olitorius L., la corète potagère, est aussi utilisée aux mêmes fins.
Rayonnement ultraviolet
Solutions aqueuses (chimie)
Teinture -- Fibres textiles
Traction (mécanique)
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
In this study, jute yarns were treated with an aqueous alkali solution and ultraviolet light to improve dyeability. Ultraviolet light treatments were carried out at an air pressure of 1 atm, under water and vacuum, and all the samples were dyed with reactive dyes. Virgin samples and treated jute yarns were analysed by Fourier Transform–infrared spectroscopy. K/S values were determined by a reflective spectrophotometer and used to establish the fixation values and colour strength of the dyed samples. The tensile mechanical properties of the samples were also measured by a tensile testing apparatus and were compared with the virgin samples. Alkali treatment resulted in a reduction in carbonyl group concentration. However, atmospheric ultraviolet light treatment increased carbonyl group concentration. Dyeability and dye fixation values for atmospheric and underwater ultraviolet light-treated samples increased. Furthermore, the loss of tensile strength for alkali-treated samples was much greater than others (up to 50%) in comparison with ultraviolet light-treated samples. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Alkali and UV light treatment - Dyeing and determination of colour strength - Dye fixation assessment - Fourier transform-infrared spectroscopy - Mechanical properties and moisture regain
- RESULTS AND DISCUSSION : Fibre characterisation - Effect of alkali and UV light treatment on the shade of jute yarns - Dye strength of alkali and UV light treated jute yarns - Effect of UV light treatment in atmosphere and water on the dye strength of reactive dye - Effect of UV light treatment in atmosphere, water and vacuum on fixation of reactive dye - Mechanical properties. |
| DOI : |
10.1111/j.1478-4408.2012.00393.x |
| En ligne : |
http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2012.00393.x/pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15808 |
in COLORATION TECHNOLOGY > Vol. 128, N° 5 (2012) . - p. 395-402
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