Previous inkjet printing inks had only one solution, and that was water-based inks. It is our only choice. But with the increasing number of digital printers on the market, the ink systems that are now available to us are also showing a diversified development trend. Jeff Bolton wrote "The Latest Development Trends of Digital Inks" to help print buyers analyze the advantages and disadvantages of each ink system, and then understand the characteristics of these ink systems, so as to recognize the current core development trend of digital ink.
Each printing company has its own development goals, and they must also use existing technology to meet the production requirements of current customers while taking into account the future development of the market. Therefore, in many cases, ink-not the printing house itself-has become an important factor in making people make decisions.
Water-based inks are used by more and more printing companies to print indoor jobs
Water-based inks are generally based on dye and pigment formulations. Their service life is between a few days and a month, and they need to be used with special coated inkjet substrates. This kind of substrate mainly depends on the coating to absorb the ink, so the price is relatively high, but the price of the water-based ink is relatively cheap, and there is no subsequent processing problem. The color gamut that water-based inks can replicate is almost the largest of all ink systems. Now, more and more printing companies have begun to use water-based printing solutions to produce their own indoor jobs.
Solvent-based inks are the most used ink system in the inkjet printing market
The solvent-based ink is mainly colored by penetrating the surface of the substrate. They are mainly developed for vinyl products and are the most used ink systems on the inkjet printing market. Solvent-based inks can provide users with a longer service life without the need for coating, but they require heating during printing and drying. The true solvent-based ink contains VOC (volatile organic compound), and requires the printing plant to take ventilation and other air treatment measures. Overall, except for some areas where air quality requirements are more stringent, the sales prospects of solvent-based inks are still very optimistic.
Environmentally friendly or low-solvent inks are cheap and free of VOC, eliminating the need for air handling
Environmentally friendly or low-solvent inks can be used on coated or uncoated substrates. When they print on coated substrates, they can control dot expansion themselves; when they print on non-coated substrates, they need to rely on heaters / dryers to control dot expansion. Environmentally friendly or low-solvent inks are cheaper than true solvent-based inks and contain no VOCs, eliminating the hassle of air handling. The service life of this type of ink is similar to that of solvent-based inks, and users can extend their durability through coating.
Ecological ink has its own world in the field of digital printing
The ecological ink using ethyl lactate is still an emerging technology so far, and its production raw materials mainly come from corn and other crops. The eco-ink needs to set the heater and dryer to a higher temperature when printing. Because the solvent extracted from the plant is used instead of the petroleum solvent, this ink is included in the category of green products. If the UV ink is not defeated before it is ecologically marketed, then it will certainly be able to break out of its own world in the field of digital printing.
Dye sublimation ink continues to grow in the niche printing market
For textile and clothing printing plants, dye sublimation ink is a good choice. This basic ink technology has not changed in recent years. When people use this kind of ink, they must first print them on a sheet of transfer paper, and then transform the ink from solid to gas by means of heat and pressure, and make it penetrate into the fibers of the textile. As the niche printing market continues to heat up, the usage rate of dye-sublimation inks will continue to grow.
UV ink will enter the field of body advertising and banner printing
UV inks are always in the process of development and change, and more and more printing houses are beginning to adopt new UV digital printing inks. When UV curable inks were first introduced to the market, they had certain problems in terms of fragility, adhesiveness, and curability. But with the advent of new UV inks, all problems have been solved. The new products have higher viscosity and greater flexibility to meet the needs of roll-to-roll printers, and they have also made great progress in terms of color gamut and diversity of ink formulations. The new UV inks are also known as "cationic UV inks". They use cold UV light curing technology and can dry instantly without waiting for 24 hours. In the coming days, these inks will enter the digital printing market dominated by solvent-based inks, especially in the field of body advertising and banner printing.
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