LIGHT AND WEATHER RESISTANCEOF PAD PRINTING INKS Unlike other printing methods, pad printing stand out for its remarkable qualities: they offer exceptional mechanical and chemical durability and excellent light and weather fastness. However, pad printing inks must meet stricter quality standards, such as high resistance to multi-layer printing and to coloured plastic materials. They often have to withstand outdoor conditions for several years. To meet these higher standards, pad printers have to consider several factors....