2020 Volume 59 Issue 1 Pages 75-82
In 2018, Ricoh released the “RICOH Pro T7210” large format flatbed IJ printer for industrial printing. The RICOH Pro T7210 achieves high productivity of up to 100m2/h by arranging 12 IJ heads in a 6-row zigzag pattern. The RICOH Pro T7210 can select ink from three types of ink sets : “T7210”, “GP120”, and “DG130”. Above all, “DG130” is positioned as a high-performance ink and has the characteristics of “high production”, “high adhesion” and “wide gamut”. The DG130 has both high adhesion without primer ink and wide gamut that can be applied to the sign and graphics field, such as acrylic substrates that are in demand for flatbed IJ printers.
In this paper, we report on the functions of the ink to realize high adhesion and wide gamut, which we found in developing DG130.