| Titre : |
Textile applications of photochromic dyes. Part 3 : factors affecting the technical performance of textiles screen-printed with commercial photochromic dyes as disperse dyes to polyester by exhaust dyeing |
| Type de document : |
texte imprimé |
| Auteurs : |
Anna F Little, Auteur ; Robert M. Christie, Auteur |
| Année de publication : |
2011 |
| Article en page(s) : |
p. 275-281 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Absorbeurs de rayonnement ultraviolet
Colorimétrie
Naphthopyranes
Nettoyage
Photochromisme
Photostabilité
Pigments à effets spéciaux
Pigments photochromiques
Spirooxazine
Teinture -- Fibres textiles
Textiles et tissus
|
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
The technical performance of five selected commercial photochromic dyes applied by screen-printing on textiles was evaluated using a colour measurement methodology that has previously been established and validated. The results of wash fastness assessments were distinctly unusual. With the selected spirooxazine dyes, the degree of photocoloration increased with initial washing and decreased with subsequent washings, while the naphthopyrans behaved more normally, showing a consistent marginal decrease in photocoloration with repeated washing. An explanation is proposed consistent with scanning electron microscopy examination of the binder film degradation and with the structural differences between the dye classes. The dyes in this application showed limited photostability. The incorporation of ultraviolet absorbers was found to increase photostability only to an extent specific to particular ultraviolet absorber/dye combinations. However, the presence of the ultraviolet absorber led to a consistent reduction in the degree of photocoloration of the dyes. In contrast, the incorporation of hindered amine light stabilisers significantly enhanced the photostability of the dyes, providing an increase in resistance to photodegradation of up to fivefold. |
| Note de contenu : |
- Instrumental methods - Materials
- Screen-printing
- Wash fastness test
- Photostability test |
| DOI : |
10.1111/j.1478-4408.2011.00307.x |
| En ligne : |
http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2011.00307.x/pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12003 |
in COLORATION TECHNOLOGY > Vol. 127, N° 5 (2011) . - p. 275-281
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