Special ink printing techniques (2)

Fluorescent ink

When in a dark environment, fluorescent inks glow. The key to this effect lies in the fact that the ink contains a special color pigment that absorbs energy in the ultraviolet region and converts this energy into longer visible wavelengths. The surface of the print can emit a strong, saturated color that attracts attention. The constituent particles of the fluorescent ink are generally softer than other oil-based or rubber-based ink particles. But this does not affect its performance, because they have a unique transfer method during the transfer of the drum and the drum, the plate to the blanket, the blanket to the substrate.

Tip: Fluorescent inks are best for metal plates. It is best not to use light or colored paper when selecting paper, because colored paper will be reduced, and even the brightness of the ink will be minimized. White or bright paper will enhance the fluorescence effect. Non-coated papers with higher brightness and better ink absorbability are preferably fluorescent inks. Coated white paper can also have a more beautiful effect. However, since only a small amount of ink is used for printing with coated paper, it is necessary to perform two printings for the best printing effect.