Journal
JOURNAL OF NATURAL FIBERS
Volume 20, Issue 2, Pages -Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15440478.2023.2253371
Keywords
Goldenrod; invasive plant; eco-functionalisation; cotton; antioxidant activity; UV protection
Categories
Ask authors/readers for more resources
Untreated and chitosan-treated cotton fabrics were functionalized with goldenrod inflorescences aqueous extract, resulting in dyed cotton with excellent UV protection and antioxidant activity. The samples had good wash fastness but decreased UV protection after washing.
Giant goldenrod (S. gigantea Aiton) is considered an invasive weed in Europe, Asia, Australia, and New Zealand. In this research, the untreated and chitosan-treated cotton fabrics were functionalized with goldenrod inflorescences aqueous extract, at room temperature and 95 degrees C. Zeta potential of fabrics was determined as a function of pH and the results showed an increased isoelectric point from 2.50 to 5.25 and amphoteric character of the chitosan-treated sample. The antioxidant activity (AA) of extract and functionalized fabrics was determined using DPPH analysis, while color and ultraviolet protection factor (UPF) were determined spectroscopically before and after wash and lightfastness testing. The chitosan pretreatment and dyeing of cotton at higher temperature increased AA (from 41.19 +/- 0.28 to 56.08 +/- 0.25), UPF (from 33.05 to 51.59) and color strength (K/S) (from 1.74 to 2.21), providing dyed cotton with excellent UV protection and a free radical inhibition activity. The samples had good wash fastness in terms of color (Delta E-ab* < 1), but not in terms of UV protection (UPF value decreased after washing to 23.47). The overall lightfastness was good to excellent (the UPF values of chitosan and dyed samples did not change much after lightfastness test (UPF = 51.75).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available