Open AccessAn investigation of dyeability of wool fabric with red cabbage (Brassica oleracea L. var.) extract
Author(s) -
BENLI HÜSEYIN
Publication year - 2017
Publication title -
industria textilă
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.281
H-Index - 14
ISSN - 1222-5347
DOI - 10.35530/it.068.02.1306
Subject(s) - mordant , dyeing , red cabbage , chemistry , wool , brassica oleracea , kaempferol , quercetin , food science , horticulture , materials science , organic chemistry , composite material , antioxidant , biology
In this study, woollen fabrics were dyed with the aqueous extract of fresh red cabbage leaves, containing kaempferoland quercetin as the main colorant species. Brassica vegetables are rich in polyphenols, flavonoids and glucosinolates.The dyeing was carried out with and without metal salts as mordants, such as KAl(SO4)2.12H2O, CuSO4.5H2O,FeSO4.7H2O and K2Cr2O7. Pre-and meta-mordanting methods were used in this study. Mordanted wool fabrics weredyed in a dyebath prepared with different pH values. The pH values of bath were 3, 5, 7, 9 and 11, respectively. Differentcolors and shades can be obtained within different pH values. The dyed fabrics were evaluated through color measurements and standard wash, perspiration, light and rub fastness tests. The dye absorbed by the fabrics and colorproperties were measured using a spectrophotometer. The color yield of dyed fabrics is expressed by K/S, and CIELAB(L*, a* and b*) values. The effects of mordant, methods of mordanting and pH value of the dye bath on the color valueswere studied. Finally, satisfactory results were obtained