Eco-friendly Dyeing Using Hematoxylin Natural Dye for Pretreated Cotton Fabric to Enhance Its Functional Properties | ||||
| Egyptian Journal of Chemistry | ||||
| Article 28, Volume 64, Issue 12, December 2021, Page 7135-7145 PDF (1.23 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ejchem.2021.82158.4049 | ||||
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| Authors | ||||
Manal El-Zawahry  1; Gehan Shokry2; Hala Sh. El-Khatib2; Hager G. Rashad2
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| 1TIRD in the NRC | ||||
| 2Textile Printing, Dyeing and Finishing Department; Faculty of Applied Arts, Helwan University, Giza, 12522, Egypt | ||||
| Abstract | ||||
| This study presents an environmentally benign bioactive dyeing and finishing of bio-mordanting cotton fabric via hematoxylin dye extracted from Haematoxylum Campechianum L. medicinal tree. A facile approach to fabricate bio-mordanting cotton fabrics based on gelatine and aloe vera for sustainable green dyeing with hematoxylin dye to achieve a wide range of functional properties and environmental benefits was explored. Optimization of dyeing conditions in terms of salt concentration and pH was conducted. Also, build-up properties and fastness characterization haswere studied in the presence and absence of bio-mordants. The natural functional groups of the dye extract were investigated by FTIR spectral analysis. The results reflect the success of bio-mordant chemical modification and mechanism for dyeing process in the course of increasing K/S values associated with improving colorfastness to washing and light as compared to unmordant fabric. All the dyed bio-mordanting fabrics in this work showed great potential value-adding applications in terms of excellent UV protection, antioxidant activity, and high antibacterial activity. The outcomes of this study deal to have implications to the eco-textile green dyeing for the achievement of healthy and sustainable environment applications. | ||||
| Keywords | ||||
| Hematoxylin dye; bio-mordants; cotton fabric; green dyeing; functional finishes | ||||
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