[article]
| Titre : |
Deep-colour vat dyeing of cotton knit fabric on a modified jet dyeing machine |
| Type de document : |
texte imprimé |
| Auteurs : |
Hiroshi Wakoh, Auteur ; Mina Furuie, Auteur ; Daisuke Inaba, Auteur ; Nobuto Azuma, Auteur ; Koji Nakane, Auteur ; Nobuo Ogata, Auteur ; Toru Shimizu, Auteur ; Osamu Ishimaru, Auteur |
| Année de publication : |
2015 |
| Article en page(s) : |
p. 136-141 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Bains de teinture
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).
Machines textiles
Teinture -- Appareils et matériels
Teinture -- Fibres textiles
Tricot
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
To improve the vat dyeing of cotton knit fabric with Indanthren Black RB Coll. (CI Vat Black 9), the basic parameters of dyeing, including the concentrations of chemicals, the dyeing temperature and duration, and the apparent diffusion coefficient of the dye, were obtained by test dyeing with a stoppered Erlenmeyer flask and the cellophane film roll method. A stable vat dyeing process has been developed on a modified jet dyeing machine for the first time without using nitrogen to purge oxygen. Modifications were made to improve the airtightness of the machine and the equipment in the liquor circulating system, with a water inlet and outlet for the gentle oxidation of dyed fabric, and with monitoring by means of a sensor inserted in the liquor circulating system for in situ measurements of the redox potential and the pH of the dyeing liquors. These measurements made it possible to follow to their completion the process of dyeing and the process of gentle oxidation by overflow washing with water and final oxidation. Optimal conditions with regard to the amount of reducing agent, the dyeing temperature (80 °C), and oxidising processes were established with this machine. It was found that, by using the modified machine and process conditions, dyeing proceeded stably and reproducibly (at 80 °C) to yield grade A dyed fabric. Visual inspection confirmed that faultless deep-colour dyeing of the fabric was attained. Production has been proceeding successfully for the past 2 years. Owing to its insolubility, complete removal of the dye from the wastewater has been possible. |
| Note de contenu : |
- EXPERIMENTAL : Materials - Dyes and chemicals - Film roll method - Determination of the dyeing conditions in the jet dyeing machine - Modification of the conventional jet dyeing machine
- RESULTS AND DISCUSSION : Calculation of the approximate diffusion coefficient (Da) - Model dyeing by the film roll method for setting production conditions - Measurements of the redox potential and pH under dyeing conditions in the modified jet machine - Operation of modified jet dyeing machines - Dyeing of the knit fabric on the modified dyeing machine - Inspection of the colours of obtained knit fabrics |
| DOI : |
10.1111/cote.12135 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12135 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23672 |
in COLORATION TECHNOLOGY > Vol. 131, N° 2 (04/2015) . - p. 136-141
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