Printing ink businesses manufacture, distribute or supply inks and related consumables for commercial, packaging, label, publishing and specialist printing. Their products are formulated for different processes, including lithographic offset, flexography, gravure, screen printing and some digital applications. Ink types may include conventional oil-based and water-based inks, UV-curable products, solvent-based formulations, toner and specialist inks for particular materials or production requirements. Customers can expect advice on selecting ink to suit the printing method, press, substrate and finishing process. Suppliers may provide standard process colours, spot colours and colour-matching services, as well as varnishes, coatings, additives and cleaning products. Technical support can cover ink handling, drying or curing, print performance and troubleshooting.