Akademik Veri Yönetim Sistemi
COLORATION TECHNOLOGY, sa.Early View, ss.1-15, 2024 (SCI-Expanded)
In this study, surface modification of wool fabrics by oxygen plasma was
carried out to enhance color, dyeability and fastness properties. Avocado (Persea americana) seed was selected as the
natural dye source, plasma activated wool samples were dyed with the extracted colorant
and tartaric acid (10% and 20%
owf) was used for
simultaneous mordanting. All samples exhibited very good washing and dry rubbing
fastness grades. It was observed that plasma treated samples have darker and
more saturated colors with a persistent hue and increased wet rubbing fastness
grades. Applying plasma treatment and using tartaric acid as bio-mordant provided
a noticeable increase in chroma and color strength, and a slight improvement in
fastness to light. Effect of
pH of the dye bath on dyeability and the bio-mordant role of tartaric acid were
also investigated for four mordant concentrations (2%, 5%, 10% and 20% owf),
and it was detected that using 5% owf or higher concentrations of
tartaric acid provided different color characteristics and dyeability when
compared to the dye solutions prepared with inorganic acid. Based on findings
of the study, it was
concluded that modifying the fabric surface by oxygen plasma can be used to
enhance the dyeing performance without causing a major change in the
characteristic hue of the colorant extracted from avocado seeds. The use of
tartaric acid - solitary or accompanied with plasma treatment - to increase the
affinity between the coloring matter and the fiber was also recommended.