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At present, UV piezoelectric inkjet ("UV inkjet") equipment and water-based inkjet equipment cover almost all drug package printing enterprises, and a small number of drug package printing enterprises use thermal transfer printers because of the small amount of coded business. Among them, high-speed UV inkjet equipment has become the mainstream choice of pharmaceutical package printing enterprises due to its advantages of high speed, good quality, strong adhesion, low cost and simple maintenance, especially for domestic high-speed UV inkjet equipment due to its good stability and quality. The high cost performance advantages brought by the characteristics of high speed, fast service and localization of service are favored by domestic pharmaceutical package printing enterprises, and foreign brands have gradually faded out of the Chinese market. Key factors to ensure high-speed UV inkjet quality
The drug electronic supervision code assignment solution has been developed so far, and high-speed UV inkjet has almost become an inevitable choice for all drug package printing enterprises. It can be said that only high-speed inkjet can improve production efficiency, ensure large-scale delivery in the short term, and reduce unit cost. The key factors to ensure high-speed UV inkjet quality are as follows.
Nozzle
To ensure the quality and reliability of high-speed UV inkjet, the choice of nozzle is the most critical. After extensive testing and practical application by domestic inkjet equipment manufacturers, DimatixSpectraQ series nozzles have become high-speed UV sprays due to high ignition frequency (up to 33kHz), moderate droplet size (30pl) and good barcode coverage (no leakage). The mainstream choice of ink equipment, in which the emerald nozzle with more precise drop point is most prominent.
2.UV ink
The development and selection of UV inks is another key factor in ensuring the quality of high speed UV inkjet. UV ink has a wide adaptability to printing materials. For paper medicine bags, there is generally no printing difficulty. However, when the printing speed is increased, the UV ink must be able to cure and adhere firmly in a short time. In addition, while ensuring the complete curing of UV ink, minimizing the energy consumption of the UV curing system is also the main development direction in the future.
3. Paper feeding platform
The stability of the paper feeding platform is very important, and most of them are mainly cast iron platforms to ensure the stability of UV inkjet.
The above content is selected from the 11th issue of “ Printing Technology ·Packaging and Decoration †of Keyin Media in 2012. For more journal content, please pay attention to the journal channel, and click on the latest journal content to enter the electronic journal channel of Keyin.com.
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