INTERNATIONAL 8th BURSA SCIENTIFIC RESEARCH CONGRESS, Bursa, Türkiye, 16 - 18 Aralık 2025, ss.667-672, (Tam Metin Bildiri)
Studies on sustainable production processes
that are sensitive to the environment and human health have recently become
popular research topics. One area of research is the discovery of
alternatives to petroleum-based dyes in the colouring processes of textiles. In
this study, the dyeability of polyester—one of the most widely used synthetic fibres
with a broad range of applications—was investigated using plant-based dyestuff
sources. To colour the washed polyester fabric ready for dyeing, walnut green shell
(Juglone regia L.) and buckthorn (Rhamnus petiolaris Bioss) were used as
dyestuff sources at two different concentrations (1:1 and 1:2), and
KAl(SO₄)₂.12H₂O metal salt were used as mordant agents. Dyeing began at room
temperature and continued at 120°C for 60 minutes. The washing process was then
completed with a hot wash, a boiling soap wash (1 g/L surfactant), and a warm
wash, and the dyed samples were dried at room temperature. Color (K/S and CIE L*a*b*) values of dyed polyester fabrics were obtained using a
Konica/Minolta 3600d spectrophotometer. Washing, rubbing and light fastness
tests were applied to the dyed fabrics, and 3/4 – 5 points were obtained. It has been
observed that polyester fabrics can be coloured with natural dye sources due to
the colour tones obtained and sufficient colour fastness.