Wool yarns are dyed with natural colouring matter that is extracted from cochineal, turmeric and madder, and mordanted with different mordants by using the exhaustion method. Many measurements of mordanted dyed wool samples have been carried out after exposure to air and light for different periods of time in the time frame of one year in an urban area (Helwan city). The variables that are measured include changes in colour and physical properties (tensile strength, tenacity and elongation) of mordanted dyed wool samples. Also, air pollution in Helwan city is determined by studying suspended and deposited particulate matter and sulpher dioxide concentrations.
Kamel, M., Helmy, H., Shakour, A. and Rashed, S. (2012), "The Effects of Industrial Environment on Colour Fastness to Light of Mordanted Wool Yarns Dyed with Natural Dyes", Research Journal of Textile and Apparel, Vol. 16 No. 1, pp. 46-57. https://doi.org/10.1108/RJTA-16-01-2012-B005Download as .RIS
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