It is necessary to understand the inkjet printing technology before choosing the inkjet printer
1. Printing technology suitable for indoor use
1. Thermal foaming technology: Thermal foaming technology was invented by HP and promoted, and this technology is constantly being developed. Its main representative models are HP and NOVAJET.
2. The first generation of micro-piezoelectric technology: Invented by EPSON, due to its high accuracy and wide adaptability to the medium, it is mainly used in Epson 1520K, Color3000 and PRO 9000 series. MUTOH RJ-4000 and RJ-6000 series, Roland HI-FI JET50 / 40, Mimaki JV2-130 / 860/880 series.
3. The second generation of micro-piezoelectric technology: Invented by EPSON, it still maintains the characteristics of high precision of the original micro-piezoelectric, but it has greatly improved in speed. This technology is mainly used in EPSON's latest PRO 9500, and ROLAND FJ-500 and FJ-600 are currently used in this technology. And MUTOH will also launch a new product RJ-8000 series in the near future.
4. The third generation of micro-piezoelectric technology: Invented by EPSON, it still maintains the characteristics of high precision of the original micro-piezoelectric, but it has greatly improved in speed. This technology is mainly used in EPSON's latest PRO 10000 medium thermal foaming technology invented by HP, and the latest HP-5000 series still uses this technology, but has applied HP's latest JetExpress technology. JetExpress technology is a rapid inkjet printing technology developed on the basis of TJI technology. The fastest speed can reach 52.86 square meters per hour, but it can only print color line drawings, which means that it is suitable for CAD (engineering drawing) drawing. Advertising production operations are not applicable. But what is most concerned about is the cost of inkjet painting. HP mostly uses original inks, and the quality is naturally no problem. However, judging from the current domestic advertising production price, it is not very practical. And the life of the thermal foaming nozzle is short, because the thermal foaming nozzle, the heating on the wafer must provide a high heat source, so that the ink generates bubbles in a very short time, and then squeeze the ink out, but at a high temperature for a long time Under the changes, the ink chamber becomes lossy in the severe environmental changes of high heat and high pressure.
NOVAJET's printing technology is similar to HP, but NOVAJET has good compatibility with the nozzle, so the development of substitute ink is also more successful. Therefore, NOVAJET has always dominated indoor water-based production, mainly because of its low cost.
MUTOH RJ-4000 / 6000 and MIMAKI JV2-880 / 860 series use the first generation of micro piezoelectric technology, the nozzle is mainly suitable for neutral ink, the machine's ink supply system also uses lower cost PVC materials, because of water-based pigments or dyes Type inks are neutral and will not have any corrosiveness to the machine. The so-called "solvent ink" currently on the market cannot be applied to this nozzle technology because it is too corrosive (mainly reacts with PVC). In fact, experts know that the ink selection rule is that the nozzle determines ink, and ink determines consumables. You ca n’t do whatever you want, and do n’t believe the equipment dealer ’s bragging. Due to the long launch time of the first generation of micro piezoelectric technology, machine sellers often find ways to find a "selling point" for the machine to increase the sales of the machine, but is this solution feasible? Is it suitable for this type of model or printing technology? Perhaps the dealers have only done one or two weeks of testing, so they ca n’t wait to get to the market. Making big use of “solvent inks†can only be a “trick†for equipment dealers, so be careful when choosing equipment and consumables. So as not to be fooled.
The micro piezoelectric technology uses water-based inks and neutral oil-based inks. Due to the use of special substrates, the accuracy can reach 1440 DPI. Recently, the micro-piezo water-based inks have also been greatly reduced to about 0.2 yuan per milliliter, so the cost is more than that of thermal foaming The cost is lower, because the nozzle is not worn, and the thermal foam model needs to replace the nozzle regularly, the cost per square meter of the nozzle is about 2.5 yuan. In the early days, because of the high price of micro piezoelectric ink, the indoor model was mainly NOVAJET. When the micro piezoelectric ink was reduced to the same as that of the thermal foaming model, the speed of the latest machine has been greatly improved because there is no nozzle loss. Now we should choose the micro piezoelectric model for indoor production, on the one hand, the lowest cost, on the other hand, a wide selection of micro piezoelectric consumables. And the use of oil-based ink for micro piezoelectric can produce high-precision outdoor screens. Due to the oil-based waterproof performance, it reduces the coating process, reduces the cost and scrap rate, so it can also be widely used indoors.
Conclusion: Because the nozzle of the micro piezoelectric model does not need to be replaced regularly, when the ink cost is reduced, the production cost will be lower than the HP ENCAD thermal foam model, and the speed will also be higher than the HP ECAND thermal foam model, so in the future There are several reasons for becoming the mainstream model in the indoor production market:
1. The speed can be greatly improved, far better than the thermal foaming model.
2. The quality of domestic consumables has improved due to the decrease in the cost of ink consumables.
3. Because the nozzle does not need to be replaced regularly, the nozzle cost is zero and the yield is high.
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