[article]
| Titre : |
Comparison of the colour fading effects of sodium hypochlorite and ozone treatments |
| Type de document : |
texte imprimé |
| Auteurs : |
Idil Yigit, Auteur ; Semiha Eren, Auteur ; Recep Karali, Auteur ; Fahri Yibar, Auteur ; Hüseyin Aksel Eren, Auteur |
| Année de publication : |
2021 |
| Article en page(s) : |
p. 615-624 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Colorimétrie
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).
Décoloration
Eau -- Consommation
Énergie -- Consommation
Hypochlorite de sodium
Mesure
Ozone
Produits chimiques -- Consommation
Textiles et tissus
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
Colour fading is a method that is used to achieve a vintage look in textile goods. It is desired by customers in the textile market. Additionally, customers demand that these types of products are produced by environmentally friendly methods. In this study, sodium hypochlorite and ozone were used as laboratory-scale colour fading reagents on dyed cotton fabrics. Cotton fabrics were dyed with four different primary colours: red, yellow, blue and black. Dyed fabrics were subjected to ozone and sodium hypochlorite treatment under different treatment conditions. Ozone was chosen as an alternative for comparison and it was applied at fixed flow rate (5 L/min) and time (10 minutes). Colour differences, chemical oxygen demand, bursting strength and energy, water and chemical consumptions were measured. The surface morphology was characterised by scanning electron microscopy. We can conclude that ozonation is effective in discharging colour from dyed fabric samples, and the colour-fading effect is uniform, like in sodium hypochlorite treatment. It was observed that both processes are similar in terms of strength and surface modification. Results showed a 90% cost reduction, 85% water conservation and a 26% chemical oxygen demand reduction. |
| Note de contenu : |
- MATERIALS AND METHODS : Materials
- METHODS : Dyeing - Fading - Fading by sodium hypochlorite - Fading by ozone - Fading effect measurement - Measurement of colour - Measurement of scanning electron microscopy - Strength and environmental impact measurement - Bursting strength tests - Chemical oxygen demand tests - Energy, water and chemical consumption comparisons
- RESULTS AND DISCUSSION : Measurement of colour - Scanning electron microscopy observations - Bursting strength tests - Chemical oxygen demand tests - Energy, water and chemical consumption comparisons
- Table 1 : A comparison of ozone and sodium hypochlorite fading
- Table 2 : Colorimetric data of ozone and sodium hypochlorite treatments
- Table 3 : The chemical oxygen demand (COD) loads of effluents according to fading treatment
- Table 4 : Energy, water, and chemical consumption comparisons |
| DOI : |
https://doi.org/10.1111/cote.12554 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12554 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36792 |
in COLORATION TECHNOLOGY > Vol. 137, N° 6 (12/2021) . - p. 615-624
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Comparison of the colour fading effects of sodium hypochlorite and ozone treatments in COLORATION TECHNOLOGY, Vol. 137, N° 6 (12/2021)
