New and improved fabric dye with salt, for use in automatic washing machines with permanent results Suitable for use on natural fibers: Cotton, Linen and viscose. Brighter colour be achieved on polyester/cotton and polyester/viscose mixes. Not suitable for wool silk, synthetic fibres (e.g. polyester, acrylic, nylon) and fabrics with special finishes (e.g. waterproofing or fire resistant) Great for dye clothes and home textiles One pack will dye up to 600 g tissue (e.g. a large pair of jeans) to the shadows on the pack or up to 1.2 kg (e.g. double duvet cover) to a lighter tone. For larger items use multiple packs. Farbmisch rules apply (e.g. red stripe on Blue Fabric Gives Purple). To remove the colour, first use DYLON Pre Dye