Evaluation of color characteristics and antibacterial properties of wool yarn dyed with the leaves of some native plants of Fars province

rafiei, saeedeh; Shadlou, Davood

Volume 17, Issue 40 (9-2021) goljaam 2021, 17(40): 250-229 | Back to browse issues page

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rafiei S, Shadlou D. Evaluation of color characteristics and antibacterial properties of wool yarn dyed with the leaves of some native plants of Fars province. goljaam 2021; 17 (40) : 11
URL: http://goljaam.icsa.ir/article-1-856-en.html

Evaluation of color characteristics and antibacterial properties of wool yarn dyed with the leaves of some native plants of Fars province

Saeedeh Rafiei ^*

¹, Davood Shadlou¹

1- Department of Carpet, Art University of Shiraz, Postcode: 7146696586, Shiraz, Iran

Abstract: (621 Views)

In the last decade, biocompatible natural dyes with antimicrobial properties have been given much attention to protect dyed fibers in handwoven carpets against microorganisms. In this research, the leaves of 6 native plants of Fars province, including Amygdalus scoparia (Arjan), Pistacia atlantica (Baneh), Carica Ficus, Shirazi thyme, Shirazi Askari grape (Vinifera) and Juglans, were used as natural dyes for wool dyeing in the presence of eight different metal mordants. The reflective spectra of the dyed samples were analyzed by a reflective spectrophotometer. In addition, the color characteristics, the brightness of the dyed samples, the variety of color shades in the presence of different mordents, washing and light fastness as well as the antibacterial properties of the dyed wool were evaluated. The results of reflection spectroscopy showed that dyed samples with the leaves of Argan, grape, thyme and fig plants had negative a* and positive b* values, which confirms their green and yellow undertones, While, dyed samples with the leaves of baneh and Juglans trees had positive a* and b* values, which proves the red and yellow undertones of these samples. Wool fibers dyed with Argan leaves, figs and thyme in the presence of different metal teeth created the most variety of colors. Ivory, cream, green, brown, olive, orange, brick and purple colors were created on wool fibers in the presence of the leaves of these plants along with different mordents. The light and washing fastness of dyed samples with all the mentioned dyes were acceptable. Wool dyed with thyme and Pistacia atlantica leaves extract showed the maximum percentage of inhibition (99%) against two types of bacteria, Escherichia coli and Staphylococcus aureus.

Article number: 11

Keywords: natural dyeing, wool, tree leaves, color fastness, anti-bacterial

Full-Text [PDF 2238 kb] (176 Downloads)

Type of Study: Research |
Received: 2022/10/19 | Accepted: 2023/12/6 | Published: 2024/07/15