*3.2.1.3 Preparation of dyeing processes*

Dye solution was boiling for ½ h at 40°C and filter of the dye bath after that dyeing of the pre-mordanted samples was performed for 1 h at 30–40°C in an open bath beaker dyeing machine at 20:1 liquor to material ratio. The dyed samples were rinsed in cold water and dried in open air (**Figures 6**–**9**).
