What kind of ink is used and is it environment-friendly?

We print the photo wallpaper on HP Latex printers and the inks we use are water-based. The printers are provided with all certificates which are necessary for the environment. Because the inks are water-based, they avoid harmful fumes and environmentally-unfriendly concentrations in the air. HP Latex inks are UL ECOLOGO® certified. The UL 2801 shows that an ink meets a series of criteria with multiple characteristics based on life cycle aimed at human well-being and the environment. More information about this can be found here: https://www.fotobehang.com/milieuvriendelijk