Digital direct-injection printers—usually flatbed printers—printing houses directly enter a vast new market. In fact, many markets and products have made great progress in the past few years by virtue of the special ability of curing ink. The successful printing of ink on leather, glass, wood, metal and other substrates has greatly expanded our possibilities for innovation and profitability. However, ink also has its own weaknesses. First of all, this curing ink is very expensive. Moreover, the price of digital direct inkjet printers is higher than that of solvent-based printers, which may cause some troubles for printing companies who want to buy new equipment. Another weakness of ink mainly comes from the field of ink development. Many companies currently using ink technology hope that this ink can achieve higher adhesion and durability on a variety of substrates. Of course, ink developers have also made painstaking efforts to achieve this goal in recent years. The development of ink technology is a dynamic process, and it is difficult for us to design fixed goals for it. But what is certain is that with the continuous advancement of technology, the durability, color quality and adhesion of the ink will definitely be continuously improved. Although the breakthrough ink system is just around the corner, we still have to choose between UV, solvent and water-based systems. Therefore, the most important thing you should do now is to understand the advantages and disadvantages of various inks, and choose a suitable ink system according to your own needs.