A client producing matt Ink Jet coatings on paper in an offline process was considering investment in new application technology and requested us to perform some development work to identify the most suitable equipment for them and to review their coatings to show what reformulation would be required to take advantage of the potential new capability.
Work Carried Out:
Based on our experience of these types of products it was clear that a contour coat would be required to achieve a uniform mottle free coating for optimum ink jet printing. The client was using Meyer bar coating and had problems with poor pattern and machine direction lines in the coating. Air Knife and Curtain were the two potential technologies selected that could offer improvements and of these two for investment review were air knife or curtain coating. The client agreed that curtain coating was their preferred option.