Fabric Dye Dark Navy Colour, Fabric Clothes Powder Dye, Hand & Washing Machine
1 teaspoon dishwashing liquid. Dissolve dye in very hot water in a plastic container. Add salt (for cotton/linen/viscose) or vinegar (for silk/wool/nylon) + 1 teaspoon dishwashing liquid. Dissolve dye in hot water and add to pot.