An investigation on colour analysis and fastness properties of the denim fabric dyed with an innovative method

Denim is a fabric which is produced by weaving dyed warp and weft yarns. The most important feature of denim fabric is the colour which is created by indigo dyeing. The mere reason for this special look is magical "Indigo'' which the warp yarns are dyed with. In this study, an innovative dyeing method was applied by adding an extra step to indigo-sulphur dyeing. The main target was achieving the unique colour transitions and appearances. At the scheduled research, colour analysis and fastness properties were evaluated. The most important result mainly obtained is that even if heavy washings were implemented, the sandwich dyed fabric protects its color, darkness and effect as against the reference dyed fabric. In comparison to reference color, new color has not got poor fastness results. Nearly all the fastness values of reference and sandwich fabrics are approximately same.