%0 Journal Article
%T Dyeing Ramie Fabrics With Curcumin in NaOH/Urea Solution at Low Temperature
%A Keru Hou
%A Ming Lu
%A Ruimin Hu
%A Sijun Li
%A Tian Tang
%A Yiping Liu
%J Clothing and Textiles Research Journal
%@ 1940-2473
%D 2019
%R 10.1177/0887302X18798133
%X To improve dyeing properties of ramie fabrics, sodium hydroxide/urea (NaOH/urea) was used as curcumin solvent and ramie-fiber swelling solvent. Ramie fabrics were dyed with curcumin in NaOH/urea aqueous solution at low temperature without using any mordants. The color depth (K/S) value, washing fastness, ultraviolet¨Cvisible spectrophotometry were measured to investigate dyeing properties of the ramie with curcumin in NaOH/urea solution at low temperature. Meanwhile, X-ray diffraction and breaking strength were used to determine the structure of the ramie in NaOH/urea solution. Curcumin could be dissolved completely in NaOH/urea solution, and crystallinity of ramie fiber was decreased a little. The K/S value of dyed ramie fabrics in NaOH/urea solution increased around 4-fold compared to dyed ramie fabrics in water. The dyed ramie fabrics in NaOH/urea solution displayed good washing fastness. In addition, dyed ramie fabrics in NaOH/urea solution revealed anti-ultraviolet properties
%K curcumin
%K ramie fabric
%K NaOH/urea
%K anti-ultraviolet properties
%K mordant-free coloring
%U https://journals.sagepub.com/doi/full/10.1177/0887302X18798133