[article]
| Titre : |
An evaluation of the properties of denim dyed with sulphur dyeing by elimination of pre-treatment processes |
| Type de document : |
texte imprimé |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 485-494 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Colorants au soufre Les colorants au soufre sont des colorants utilisés pour teindre de façon assez économique des fibres cellulosiques, principalement dans des nuances sombres (noir, brun, bleu foncé). Insolubles à l'état oxydé, ils sont rendus solubles par réduction à la soude caustique pour la teinture, dans un procédé analogue aux colorants de cuve, plus chers.
Les colorants s'obtiennent par action du soufre sur des composés organiques, notamment sur le 2-4-dinitrophénol (Sulphur Black 1) ou le toluène-2-4-diamine et la 4-nitroaniline (Sulphur Brown 12).
Colorimétrie
Eau -- Consommation
Énergie -- Consommation
Essais dynamiques
Jeans
Solidité de la couleur
Spécifications
Stabilité dimensionnelle
Teinture -- Fibres textiles
Textiles et tissus -- Lavage
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
In recent years, the low-environmental impact technology has given rise to new types of treatment in the textile industry. From the environmental point of view, mainly the textile dyeing process constitutes a significant pollution problem due to the variety and complexity of chemicals employed. Denim has been identified with indigo dyestuff throughout history. However, the percentage of warp yarn woven with sulphur-dyed denim (included in the denim group of products) has increased in recent years. The justification of this study is to create a new concept in denim fabric dyeing. Conventional denim fabric properties have been tried to be obtained with less process. A novel method with a less environmentally detrimental technique that limits the use of water, chemicals, and other resources has been developed to achieve traditional denim fabric qualities. The colour changes, tensile-tear strength, skew movement, dimensional stability, and the rubbing fastness values of fabrics dyed using these methods were examined comparatively. According to the results, the properties of fabric treated with the developed dyeing method, are very similar to those of the standard dyed fabrics. The tensile and tear strength values of the fabrics dyed using the reduced process method increased. The dimensional change and movement values of the fabric dyed with the new technique are higher. Fabric dyed with the conventional method has the highest K/S value but the lowest L* value. The greatest ΔE value was seen in fabrics with stone+hypo washing. The rubbing fastness value of the fabric dyed with the reduced process method was better. |
| Note de contenu : |
- MATERIALS AND METHODS
- RESULTS AND DISCUSSION : Results of tensile and tear strength - Results of colour measurements - Results of dimensional stability - Results of skew movement - Results of colourfastness to rubbing and areal density
- Table 1 : Quality parameters of the yarns used in denim fabrics
- Table 2 : Specifications of the denim fabric
- Table 3 : Processes
- Table 4 : Tests performed and standards
- Table 5 : Descriptions of industrial denim washing techniques
- Table 6 : Strength values of the fabrics
- Table 7 : Measured CIELab values of samples
- Table 8 : Colour differences between the samples of standard and reduced process methods
- Table 9 : Colour fastness to rubbing and areal density of the samples
- Table 10 : Water, electricity, and natural gas consumption of processes
- Table 11 : Energy and environmental impacts of the process |
| DOI : |
https://doi.org/10.1111/cote.12606 |
| En ligne : |
https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12606 |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38123 |
in COLORATION TECHNOLOGY > Vol. 138, N° 5 (10/2022) . - p. 485-494
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