? ?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 relatively light in color, it can make the image lighter, while the heavier magenta ink can be used to maintain the depth, detail, and contrast of the image.
? ?To better control and influence the press, pink ink can be added as a fifth color to the printing process of this pink balloon. This can selectively print fluorescent inks in specific areas to ensure the authenticity of other colors, such as the color of the hand of a person holding the balloon. For field blocks that need to be highlighted, fluorescent inks can be printed twice.
Economic benefits and multiple uses
? ?Because uncoated paper can easily absorb large amounts of ink, the color on the printed page can easily lose its vitality. However, fluorescent inks can maintain high brightness while being heavily inhaled because they reflect more light into the eye.
? ?They can also be used at the end of the printing process to compensate for the lack of printed image details on uncoated paper. For example, if an image is dominated by yellow and magenta, fluorescent inks can be used instead of printing primaries to increase the brightness of the image.
? ?The use of fluorescent inks is not an exact science, nor is every printer having the same processes, options, equipment, and suppliers. As long as it can be used reasonably, fluorescent ink can become a profitable tool and has a significant impact on the printing effect.
Printing fluorescent ink use matters needing attention
? ?Bright images with a large area of ??solid patches are best suited for fluorescent inks. If you use this kind of ink in shadowed images that contain many shadows, you may lose some of the texture and contrast.
? ?The price of fluorescent ink is about 20% more expensive than ordinary ink. But the proportion of ink in the total cost of a print job is very small.
? ?Yellow and magenta fluorescent inks have the strongest impact, and blue inks have the weakest effect. Be careful to choose the coating method for fluorescent inks. Waterborne coatings make it easier to discolor fluorescent inks than coating. But no matter which method you choose, the paint will affect the effect of the fluorescent ink.
? ? It is not possible to check images accurately with fluorescent inks. So be sure to check the image on the press because fluorescent inks are likely to have a slight color cast during the printing process.
? ? Because these inks are relatively light, printers tend to increase the amount of ink supplied to the printer in order to print brighter colors.
? ? These "variable" pigments are best suited for printing short-term promotional materials with strong impact because they are easily discolored.
? ? ?Although the fluorescent ink is very bright, you don't have to give up the shadows. Fluorescent inks look bright because they use a large proportion of spectral colors, including UV light. They convert the wavelength of UV light into visible light, reflecting more of the color into the eye. Fluorescent inks are made from fluorescent dyes and resins. Fluorescent dyes can make inks brighter, but they cannot emit fluorescence unless they are added to the solution.
