Marabu Fashion Color makes it simple for you to dye natural fibres such as cotton, linen, jute, silk and viscose or blended fibres of not more than 20% synthetic content in your washing machine. Different shades can be achieved by varying the weight of fabric.  500g of fabric will give intense colours where as 1kg of fabric will give a medium colour.  Each dying requires 1kg of normal salt (not included in the pack).  Full instructions are provided but it is as easy as