Procion mx dyes produce bright clean permanent colours so are ideal for cold water multipurpose fabric dyeing perfect for cotton linen viscose and silk will also dye polyestercotton mixes but to lighter shades ideal for many methods including washing machine dyeing tie dyeing dip dyeing airbrushing printing twisting sponging and spraying all colours are intermixable or one colour can be dyed over the other a little of this dye goes a long wayfor pale shades use 1g dye per 100g