White ink formulation is made particularly difficult as a high pigmentation level is needed to ensure a white ink has sufficiently high opacity. Furthermore, this has to be achieved while maintaining all other ink properties including: viscosity, surface tension, particle size, cure speed, adhesion range, flexibility, jetting reliability and drop formation / break-off.
We developed several WHITE formulation targetting different substates:
- outstanding over-printability
- jetting reliability
- high opacity
- available as rigid or flexible
- excellent adhesion to difficult substrates