In the process of using the cosmetic packaging inkjet printer, in addition to a part of the ink dots ejected on the identification carrier, some of which will be recycled by the recycling system, and a lot of scattered spots will splash on the nozzle.
In addition, each time the machine is turned on or off, the first drop of ink or the last drop of ink ejected from the nozzle may be because the ink circulation system is not in a normal state, and it cannot accurately reach the identification carrier or the recovery system. Causing the nozzle to clog.
Usually, users of cosmetic packaging printers will encounter the following causes of nozzle clogging: First, the problem of consumables. If everyone can use genuine consumables, this problem will be improved; the second is the problem of impurities. The printer will inhale a large amount of dust during work, including some impurities in the air. When it enters the ink circulation system, it may chemically or physically change with the ink, which may cause some particulate matter, which may cause precipitation of the ink. Pipes and nozzles are clogged.
Reduce the chance of cosmetic packaging nozzles coming into contact with air
The nozzle of the cosmetic packaging printer is very small, about 60 microns. After use, the oil, toner and solvent will remain in the nozzle. After the solvent evaporates, the dust in the air will contact the nozzle and the recovery tank and be dried. The debris will increase the blockage of the printer. In response to the above problems, KGK has its own solution - nozzle automatic sealing technology.
When the cosmetic packaging printer is just turned on, the nozzle does not eject ink until the internal ink circulation system is operating normally, and the nozzle sealing device is opened, so the problem of the first ink drop does not exist. Also, before the shutdown, when the ink circulation system has not stopped working, the nozzle and the recovery tank have been closed, thus avoiding the problem of the last drop of ink remaining on the nozzle. Another advantage of this technique is that after the nozzle and ink circulation system are closed, the entire ink path system becomes a closed system, so that the nozzle portion is no longer in contact with air.
This technology allows the nozzle to be less clogged or not clogged, resulting in a smaller diameter nozzle that improves the quality of the print.
Reduce the chance of impurities entering the ink system
The nozzle automatic sealing technology enables the nozzle to not touch the air in the non-working state, and solves a problem for the global market including China, that is, how to make as little debris as possible into the ink system of the printer during the working process. Medium – the approach adopted is low vacuum recovery technology.
Since the inside of the recycling system of the cosmetic packaging printer is in a vacuum state, it has a certain attraction to the ink ejected from the nozzle, so that it can smoothly reach the recycling system, but this method also brings in a large amount in the process of sucking the ink. air. During the production process, the nozzle is exposed to the air, and it is difficult to completely isolate the air.
In addition, the low vacuum recovery technique has an advantage in that as the amount of incoming air in the ink path system decreases, the evaporation rate of the solvent slows down. The solvent consumption of the printer can be reduced by 30%~40%, which is environmentally friendly and prolongs the service life of the printer hardware (filters and nozzles), saving the consumption of consumables.
More: Treatment Pumps
