From all colours bright & beautiful to rich & intense shades, with DYLON Fabric Dyes for machine use you have all the colours of the rainbow to choose from. So if you feel like a change, you can wake up your wardrobe, revive a faded top or brighten some cushion covers, with colour & ease....and dont forget, for effective dyeing youll need to add salt (see instructions for details). The shade you achieve will depend on 3 things: 1. FABRIC TYPE Cotton, linen & viscose will dye to full shade Polyester/cotton & polyester/viscose mixes will dye to lighter shade Wool, silk, polyester, acrylic, nylon & fabric with special finishes e.g. ‘dry clean only’, cannot be dyed 2. FABRIC AMOUNT One pack will dye up to 600g of fabric (e.g. jeans, bath towel, double sheet) to the full shade & up to 1.2kg of fabric (e.g. double duvet) to lighter shade Multiple packs will dye larger amounts to full shade, e.g. 2 packs for 1200g (e.g. double duvet) or 4 packs for 2kg (e.g. curtains) 3. ORIGINAL FABRIC COLOUR You can change one strong colour to another (or dye it to a lighter shade) by using DYLON PRE-DYE which lightens before you dye, ready for colour change Otherwise colour mixing rules apply, e.g. blue dye on red fabric gives violet Patterned fabric will often still show through