If you want to add special effects for offset jobs during the printing process, you can use fluorescent inks in the four-color printing process. In this way, the printed images can emit brilliant light. Fluorescence lets images jump In the offset printing process, fluorescent inks can be used in a variety of ways. For example, if you can add 25% to 50% of the pink fluorescent ink in the ordinary magenta ink, the image of a pink balloon will become more prominent. Since the fluorescent ink is...

China has been producing ink for a long time. The predecessor of ink was pine ink. China uses pine smoke, glue (mainly cowhide glue, which plays a role in bonding cigarette ash), and water to make black ink. Started as a writing tool and later used in the woodblock printing industry. Ink developed rapidly in the early stages of China, but after the Middle Ages, it remained stagnant and satisfied with traditional secret formulas, lacking creativity. At that time, wooden printing in Europe was...