a method for producing images on a substrate with colour bodies thereon , the colour bodies losing a colour effect due to a laser and consisting of dyes or pigments contained in capsules . different colour bodies having at least three different colour effects are on or in the substrate . the method includes : producing a colour chart , with individual colour effect of individual colour bodies contained as a function of the spatial coordinates thereof on or in the substrate ; and spatially resolving radiation , which opens the colour effect of colour bodies of individual capsules and releases dyes by a laser at a single frequency on the basis of the colour chart in order to produce a resultant colour effect . substrates , like security documents , can be produced this method .