When using quick-drying waterborne inks for flexo printing, lumps of semi-dried ink tend to destroy the function of the end-seals. Our end-seal spray system prevents waterborne inks from drying up and pushing the end-seals out. No more unplanned production stops due to clogged end seals leading to heavy leakage. No more ink dripping from the sealing blade. No more contaminations of linear bearings by drying ink, in printing units of sophisticated Flexo printing presses.
When using quick drying waterborne inks in an enclosed chamber, the function of the end seals are easily destroyed by lumps of semi-dried ink. Typically, the semi-dried ink builds up underneath the working blade, and thereby pushes the seal and the blade away from each other, allowing the ink in the chamber to flow out without restraint.
With the NOVA XLS ink chamber and our end-seal spray system, the problem is solved by a double end-seal arrangement and regular injections of water to keep the area around the seals at a high humidity, preventing the ink from drying in this area. No more unplanned production stops due to heavy ink leakage at both ends of the chamber/screen roller and no more unnecessary cleaning work. Just great savings in manpower and running costs! Not to mention the possible contamination of the linear bearings in each print deck of electronically controlled flexo printing presses. Ink should never be allowed to enter such bearings!