How to use the fountain solution of the flexographic printing machine? In the printing process of the flexographic printing machine, the dampening solution plays an important role, so how to use the dampening solution of the flexographic printing machine? Let's take a look at it together.
The general control principle of the amount of fountain solution is to minimize the amount of fountain solution used on the premise that the printing plate is not dirty. The amount of fountain solution varies under different printing conditions. Mainly from the following aspects:
1 The water content of paper is high, and the amount of fountain solution is small; on the contrary, the water content of paper is low. The amount of fountain solution is large. at the same time. When the surface strength of the paper is low, appropriately increasing the amount of fountain solution can reduce the problem of smudging caused by paper powder and hair loss.
2. For inks that are difficult to emulsify, the concentration of the fountain solution needs to be appropriately increased.
3. Printing plate: The surface properties of CTP plate and PS plate are different. The CTP version requires a thicker dampening fluid film. also. The stronger the adsorption force of the blank part of the printing plate on the water film, the more fountain solution is required.
4. Graphics and texts of printed matter: The amount of fountain solution used in printing on-site is obviously larger than that in printing text drafts and dot maps.
5. Printing speed: the amount of fountain solution increases with the printing speed.
6. Ambient temperature: The higher the ambient temperature, the greater the amount of fountain solution.
