Colouring a fat based product 鈥?Chocolate and other compound coatings are some of the products used, and for creating the colour, lakes are dispersed in highly stable and premium quality vegetable oil. This dispersion is then added directly to the chocolate to dye it according to the colour one requires.
Resistance in bleeding 鈥?Dyes are soluble and therefore bleed, and move from part of the product to another. This is problematic in case of products with multiple colours and well defined boundaries. If bleeding is an issue lakes might be substituted instead of dyes.
Hard panning 鈥?This is the technique used for dyeing the outside layer of pills or gum balls. For this purpose a sugar and water dispersion is created.