Talking about the Application of Different Printing Methods in Inkjet Printing (Part 3)

We must synchronize the drop breakage with the charging of the charging pad, we must consider the mutual exclusion between the charged droplets, and even the aerodynamic problems of flying drops. Users of continuous inkjet coding machines do not feel these problems, but it is these problems that make designing continuous inkjet coding machines interesting.
Because ink jets are continuous, continuous inkjet printers can use many types of inks, especially those that dries very quickly (within 1 second). Therefore, continuous inkjet coding technology is ideal for printing on non-permeable surfaces such as cans and plastics that need to be processed quickly after printing. In addition, more colorful pigment inks can also be used.

Since continuous jet printing has a relatively high jetting speed, the jet printing distance of the continuous jet printing is usually far more than the jet printing distance (generally more than 10 mm), and the jet printing quality does not decrease. The placement of the nozzles allows for a great deal of choice.

Binary printing

The concept of dual-type continuous jet printing technology is as old as that of the deflected jet printing technology. This technology was developed toward the high-speed (high-cost), wide-spray printing commercial field in the early days. As technology advances, binary printing will be practical in a very short period of time.

The ink is ejected from a series of closely spaced nozzles. The print resolution is 4-8 dots/mm. The ink flow is broken by the piezoelectric device into ink droplets. The breakage pattern is similar to that of deflection printing (although the binary printing has More ink flow). The ink dots that do not need to be printed are charged, deflected, and then recovered by the recovery tank. The ink dots that need to be printed are not charged and do not deflect. They directly hit the surface of the printed object. In this way, the width of the print pattern is determined by the number of nozzles or the number of ink flows. Of course, we can also use rechargeable ink jet printing to recover the uncharged ink droplets.

Binary jet printing is less than offset printing, but it is still much larger than valve printing. In principle, a wide variety of inks for deflected jet printing can be applied to binary jet printing. In the future, whether to use binary printing or offset printing will depend on whether the printing is focused on the number of information lines or the speed and cost. When printing more than three lines of information at the same time, binary printing is undoubtedly faster than deflection printing. However, binary printing is more expensive, and more manual work will be required in early applications—especially when using different heterosexual inks. Basically, binary printing and deflection printing will coexist, because at present, they provide customers with the most diverse and effective solutions in the field of on-line printing.