To answer this question, a distinction must be made between the three dye series.

simplicol Textile Dye intensive and the Back-to… products behave like high-quality new textiles. Your colours stay brilliant for longer if you use a colour detergent and avoid bleaching detergents (e.g. general-purpose detergents). We recommend washing with similar colours.

Textile Dye expert may bleed slightly during washing. It should be washed separately using a mild detergent. Colourfastness and colour brilliance can be improved using simplicol Colour Fixative expert.