Solvent and eco solvent is a commonly used term when it comes to flex and vinyl printing. Eco solvent is a printing mechanism which is ecologically safe and used mainly for indoor applications. Normally solvent ink are harsh and are associated with definite odor i.e. Smell making them less likely to be used indoor.
Eco solvent printing doesn’t have any harmful ingredients and it is biodegradable. Being biodegradable means it can break down and absorb in the human body without any complications. You need not take without any smell to be automatically labelled as eco solvent. Odor is just one of the advantage of the eco material but there are lot many more as well. One definite advantage which we can associate with the solvent printing is that it can be used to print on wide variety or material. It is cheaper to print on this media.
Eco solvent media is a high resolution print where printing cost is more. Design artwork and images required should be high in resolution with no pixelation. We can expect very high quality print which is not the case with the solvent media. This is advised to used on good quality media which absorb the color well.
Higher the pass more pronounced should be the impression. More the number of pass will not make low resolution image print better. Eco solvent printing machine typically do not have any pass they are printed in high resolution with single pass only.
There is also common query whether flex is solvent and vinyl is eco solvent. Its a myth, flex and vinyl are the print media, whereas solvent and eco is the ink. We can print both flex and vinyl through either solvent or eco. Though it is preferable to go with better media for eco printing.
Cost of printing as mentioned above is less for solvent printing. Solvent machine prints at much faster speed as there is less detailing.