Silver Nanoparticles Synthesized on the Wool Yarns with Safflower Natural Dye: Colorimetric and Fastness Studies

Document Type : Original Article


1 Department of Organic Colorants, Institute for Color Science and Technology, P.O. Box: 16765-654, Tehran‎‏,‏ Iran‏.‏

2 Department of Chemistry, Faculty of Sciences, Shahid Rajaee Teacher Training University, P.O. Box: 16785-163, Tehran, Iran


The research and development of green techniques for the synthesis of silver nanoparticles (AgNPs) with bioactive plants has gained more attention against toxic chemicals. In this research, the aqueous solution of safflower extract was utilized for the simple, green, and commercial synthesis of AgNPs from AgNO3 solution on the wool yarn. The effect of the amount of extract and AgNO3 on the properties of produced nanoparticles was studied. The analysis of AgNPs by Dynamic Light Scattering (DLS) system and Ultraviolet-visible (UV-Vis) spectroscopy exhibited that the particle size of produced NPs was <57 nm. In addition, the colorimetric data of wool yarn dyed with safflower extract in the presence of different concentrations of AgNO3 solution were also studied. The results showed that the presence of nanoparticles changed the color hue (hᵒ: 86→58), and the absorption of safflower extract on the wool samples increased from 5 to 29. Also, the ratings of washing and rubbing fastness of dyed samples were satisfactory (4-5).


Main Subjects

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