The most obvious benefit of water-based pigment Inkjet technology is its superior print quality. Water-based pigment inkjet technology produces much sharper and vibrant colors than the other technologies. This makes it ideal for printing high-quality photographs and artwork. The vibrancy of the colors, as well as the small details that you can include in your prints makes this type of technology ideal for jobs where quality matters.
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Additionally, the ink is water-resistant, so your prints will last longer and resist fading. Water-based pigment inkjet technology is also more eco-friendly than the other technologies. This is because the ink dries quickly and does not require the use of hazardous chemicals like other printing processes. The ink formulations are designed to allow customers to print food safe packaging using water-based inkjet inks.
In comparison, dry toner, liquid toner, and UV inks all contain volatile organic compounds (VOCs) which can be harmful to the environment. Furthermore, water-based pigment inkjet technology has a much lower carbon footprint than the other technologies, making it a more sustainable choice. Water-based pigment ink can be used in a wide range of applications where other technologies like UV inkjet printing cannot due to the constraints of Nestle or Swiss compliance.
Another advantage of water-based pigment inkjet technology is that it is cost effective. The ink is less expensive than that of other types of inkjet technologies, and the cartridges last longer. This makes it a great option for those on a budget. The print heads are also more durable, lasting up to 25 times longer than other inkjet printers on the market.
Finally, water-based pigment inkjet technology is a great choice for those who want to print on a variety of surfaces. This is because the ink is designed to adhere to almost any surface, including glossy and matte paper, canvas, wood, metal, and more. In comparison, dry toner, liquid toner, and UV inks are not designed to adhere to certain surfaces, making it difficult to achieve the desired results.
Some digital printing application will require a water based primer or topcoat to effectively print, but this can be applied either offline or inline on a variety of substrates. The ability to prime materials inline on models like the ArrowJet Hybrid Pro allow customers to reduce costs and open up new material applications with water-based pigment inks that would not have been previously available.
In conclusion, water-based pigment inkjet technology is a great choice for those who want to print high-quality photographs and artwork. It is also more eco-friendly and cost effective than the other technologies, and it can be used on a variety of surfaces. For these reasons, water-based pigment inkjet technology is quickly becoming the preferred choice for professional printing.
Water-based inks are defined as those that utilize water as the main solvent. That does not mean, however that water is the only solvent. It is significant to note that many water base inks contain “co-solvents” which may even be petroleum based solvents. The reason these co-solvents are used varies, but one of the key reasons is to decrease the time and heat necessary to cure the ink film on the fabric.
Water-based ink is the ink of choice for the printing of yard goods; either in piece form or on the roll.
Water-based inks are a good choice when a “soft hand” is desirable. A soft hand is the condition where the ink film cannot easily be felt with the hand when passed across the surface of the fabric. This affect is often used as an argument for why water-based is preferable to plastisol as plastisol has more of a hand than water-based.
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Water-based ink also has the advantage of being an excellent ink system for high speed roll-to-roll yardage printing. Such printing is done on large sophisticated equipment that has very large drying (curing) capacity.
Water-based ink also is a good choice where ink penetration is desirable, such as in towel printing. Towels have a high nap fabric that must be printed in a manner where the ink penetrates or wicks through to the base fabric for adequate coverage. Water-based inks that are designed to wick into the fabric are excellent for this application. Ink wicking is not a desirable affect in most other fabric printing as it will destroy the design and registration of multiple colors.
Water-based ink is much more difficult to cure than plastisol. A shop that is interested in printing water-based ink must have the drying capacity to remove the water. The dryers used for water-based printing tend to be larger than those needed for plastisol. In plastisol printing, the ink film must only reach the cure temperature for a brief moment. With water-based ink, the temperature must be reached and then held until all of the solvent (water) is removed.
There are water-based ink that will air dry but they are usually only acceptable for craft level printing as the room required for curing greatly reduces productivity. Many water-based inks can also be more quickly cured with the addition of a catalyst that will assist the heat in the curing of the ink by continuing the cure even if all of the water is not removed in the dryer.
The disadvantage of a catalyst is that once it is added to a water-based ink, it creates a time limit or “pot life” where the ink must be all used in a certain time or be discarded. Most catalyzed water-based ink pot life’s are between four and twelve hours.
Since water-based inks contain water as an evaporative solvent, care must be taken to prevent the ink from drying in the screen. If water-based ink is left in open mesh for even a short period of time, it can clog the mesh and ruin the screen. Practiced water-based ink printers must always be conscious of how long a screen sits between prints to prevent the ink from “drying in”. While modern water-based inks are less prone to this phenomenon, it is still a concern.
In addition, when a water-based print job will take more than one day, the ink must be removed and the screen cleaned with to prevent drying. The ink is then put back in the screen on the next work day and the job is continued.
Water-based ink is also much more aggressive than plastisol towards the emulsion that is used to create the screen stencil. Emulsion manufacturers all make “water-resistant” emulsions that must be used for water-based printing. If standard emulsion is used, the water-based ink will destroy the stencil by melting the emulsion is as little as a few minutes. Even when the proper emulsion is used, screen life tends to be much less with water-based printing than it is for plastisol printing.
There is a common misconception that because water can be used for cleaning screens, squeegees and tools, that the waste water can just be discharged in the sewer. However, the water-based ink is not just water. There are pigments, binders, thickeners, and sometimes, even co-solvents in the ink residue. Screen cleaning systems that can at least capture the solids are still recommended.
In addition, water-based that has not been catalyzed can be returned to its container for reuse. If the ink has been catalyzed, it should be considered hazardous waste unless it can be dried out (all water and solvent removed) before discarding. If it cannot be dried, it should be disposed of as hazardous waste.
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