دورية أكاديمية
Photo-stability of a flavonoid dye in presence of aluminium ions
| العنوان: | Photo-stability of a flavonoid dye in presence of aluminium ions |
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| المؤلفون: | Villela, Alexandre, van Vuuren, Monique S.A., Willemen, Hendra M., Derksen, Goverdina C.H., van Beek, Teris A. |
| المصدر: | Dyes and Pigments 162 (2019) ; ISSN: 0143-7208 |
| سنة النشر: | 2019 |
| المجموعة: | Wageningen UR (University & Research Centre): Digital Library |
| مصطلحات موضوعية: | Flavonoid, Light-fastness, Luteolin, Natural dye, Reseda luteola, Weld |
| الوصف: | The main colouring compounds of the dye plant weld (Reseda luteola L.) are the flavones luteolin (lut), lut-7-O-glucoside and lut-7,3ʹ-O-diglucoside. Alum (an aluminium salt)-premordanted wool dyed with weld leads to yellow colours that are of low resistance to light. The photo-stability of lut in aerated methanol–water 8:2 (v/v) solution upon irradiation with light above 300 nm was studied at different lut–Al3+ ratios. Experiments using extracts of weld to dye wool premordanted with increasing quantities of aluminium salts were also carried out. The photo-stability of lut in the polar protic solvent and the photo-resistance (light-fastness) of the colour of weld-dyed wool decrease with increasing concentrations of aluminium ions. Thus, the lower the [Al3+] used for mordanting the wool, the more light-fast its colour. Lowering the [Al3+] appears to have no negative influence on the wash-fastness of the colour. As the gain in light-fastness by the use of low [Al3+] to premordant the wool is not extensive, however, this does not seem to be a way to meet today's requirement of light-fastness of the colours of dyed textiles by itself. Nevertheless, it may be part of a bigger strategy to address the need for increased light-fastness of the colour of wool dyed with weld. Implementation of this approach by dyers is expected to clarify whether it results in benefits for textile dyeing practice. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | https://edepot.wur.nl/467497Test; https://research.wur.nl/en/publications/photo-stability-of-a-flavonoid-dye-in-presence-of-aluminium-ionsTest |
| DOI: | 10.1016/j.dyepig.2018.10.021 |
| الإتاحة: | https://doi.org/10.1016/j.dyepig.2018.10.021Test https://research.wur.nl/en/publications/photo-stability-of-a-flavonoid-dye-in-presence-of-aluminium-ionsTest |
| حقوق: | https://creativecommons.org/licenses/by/4.0Test/ ; Wageningen University & Research |
| رقم الانضمام: | edsbas.D47B244F |
| قاعدة البيانات: | BASE |
| DOI: | 10.1016/j.dyepig.2018.10.021 |
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