Your choice of cushion-mounting tape is crucial to achieving high-quality printing whether it’s on boxes, shopping bags, beverage cartons or labels.

 The improvement in print quality using an open-cell cushion mounting product is shown below:

Achieve Better Flexo Print Results

 Open-cell, cushion-mounting materials have a greater resistance to compression set compared to typical closed-cell products. Compression set is defined as the ability of the product to return to its original thickness after being compressed. Open-cell materials typically hold 97 percent of their original thickness even after one million impressions while the closed-cell products typically maintain 70-90 percent of their original thickness. This means that open-cell foams will provide the most consistent print results over long runs while making little or no adjustments. Closed-cell products require multiple adjustments due to loss of impression.

The open-cell has a greater resistance to compression set compared to closed-cell. This means that on long runs open-cell will be able to provide more consistent print results whereas most closed-cell tapes will begin to lose impression and require replacement. 
Banding is the visible web direction variation in print results, typically in tonal areas that appear to be “gear bands.” There are many causes for banding including machine vibration and the design on the plate. If this problem plagues your work, change the type of tape to determine if it can eliminate or reduce this defect. 
If this article has made you curious about experimenting with tape, you should first ask yourself what issues do you face: Do you have long runs, are you unable to reach high line speeds, do you struggle with banding, is it difficult to achieve solid ink density while minimizing dot gain? Hopefully the information above provides some direction in your efforts to improve your print quality and effectiveness.
Rogers Corp.
(800) 755-6766