In contrast to thermal inkjet systems, piezo inkjet systems facilitate higher frequencies and a greater variety of colour formulations. On the other hand, UV inkjet lets you print long-lasting photo-quality images in all shades of the rainbow. With the development of this type of colour application, the advantages of UV technology have also been made accessible to the inkjet printing market. Consider this thermal transfer printing, long known for providing durable label solutions, uses a printing ribbon and a very limited choice of rather intense spot or process colors. The drops are formed from the resulting excess pressure, catapulted out of the nozzle chamber and onto the substrate (piezo inkjet). This is attached to the nozzle chamber and is deformed by the electrical voltage. There are two different options here: Either the ink drop is created by heating or locally evaporating a liquid in the nozzle chamber (thermal inkjet), or the drops are formed through the deformation of what is known as a piezoelectric crystal. With the drop-on-demand process, an ink drop is only created once it is required for the image. Any drops not required are diverted and collected the drops required continue on to the substrate. Depending on the image to be printed, they may also be electrically charged to some extent. For the continuous inkjet process, a continuous flow of small ink drops is created. There are two different options when it comes to applying ink, which in turn also offer further possibilities.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |