The study investigated the colour fastness of pigments on digitally printed samples of white and black cotton/elastane knitted fabric. Four process colours were used for printing white knitted fabric, namely cyan, magenta, yellow and black, while only three process colours were used for black knitted fabric, namely cyan, magenta and yellow. The knitted samples were printed using the Epson SureColor F2200 digital inkjet printer. Process colours are aqueus dispersions of pigments. The colours of the air-dried vacuum-pressed printed samples were evaluated spectrophotometrically using the CIELAB colour space. The printed samples were tested for colour fastness to rubbing, washing, hot ironing, perspiration and light in accordance with the applicable SIST EN ISO standards. Colour fastness was assessed visually using a grey scale and a blue wool scale was used for light fastness. The results of the study showed that the background colour of the fabric influenced the colour of the printed samples. The colour of black dyed printed knitted fabric deffer influence was more pronounced with black than with white knitted fabric. The colour fastness of samples printed with pigments is excellent to light, very good to excellent to washing, hot ironing and perspiration and slightly less to wet rubbing than to dry rubbing. Digitally printed cotton fabric with pigments is suitable for everyday textile products.
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