The best part about an inkjet printer is its perfection with respect to printing — it deposits only a very small amount of fluid with exact positional accuracy and optimum speed. Often this highly developed inkjet printing technology is explored as an alternative to etching, lithography and vapor disposition. The functional ink used in this type of application involves non-linear viscoelasticity that smooth the process of printing.
The Printing Process of Inkjet Printers:
At the heart of an inkjet printer, there are a large number of high-precision microscopic nozzles that eject ink on to the paper. These nozzles are approximately 10 micrometers in size, equivalent to 1/10th of the diameter of human hair. The diameter of each of these nozzles is made with sub-micrometer accuracy to achieve uniform and consistent flow of ink. Several micro-fabrication techniques are evolved in commercial production such as laser ablation, electroforming, photolithography and anisotropic etching. For each color of ink, all of the nozzles on the carriage are formed in a single line to firmly control the ink-dropping position that helps achieve uniform printing quality without banding.
In certain cases, the nozzles for every color of ink are produced together so that the flow of multi-colored ink is also uniform. These days, there are different types of inkjet fluids available in the market, among which, four types are most prominently used. They are: Phase changed ink, solvent-based ink, and water-based ink and UV curable ink. Here is what these four different types of inkjet fluids are all about:
Phase Change Ink:
These inks are also known as hot melt because when it is put in solid form into a compatible system, it melts down before the ink drops onto the paper. Some of the important advantages of phase inks are — rapid solidifying quality, environment friendly and opaque printing ability. Since this type of ink dries out quickly, it is easy to check the flow as well as avoid problems like bleeding or overrunning.
This is the most widely used inkjet fluids as it offers exceptional printing quality with various substrate features. It has high longevity and is resistant to scratches. One of the most promising features of this ink is that it can adhere to almost all types of surfaces and hence it offers a vast range of choices for selecting printing substrates. These inks are affordably priced and can be dried fast resulting to speedy production.
Water Based Inkjet Fluid:
This water-based ink is used in almost all inkjet printers. These are environment-friendly and comparatively less expensive. Even then these inks have not been able to penetrate into the industrial sector because it requires specially formulated or laminated porous substrates. However, the current scenario is changing owing to rising demand of water-based printing due to environmental concerns.
UV Curable Inkjet Fluid:
The recent fluid formulation has revolutionized the use of UV curable inkjet inks. This fluid cannot be applied on food or beverage items but it is an excellent choice and is widely used for printing and coating purposes. Some of the important advantages offered by UV curable inks are its digital printing flexibility that helps, coating and labeling of primary packages and facilitates opaque printing, too.
Combined with the benefits of inkjet printers that come with highly-advanced technology, these four types of inkjet fluids can produce excellent quality photographic images for all your business needs.