Extend Roll Life
“By taking nip impressions with pressure indicating film every couple of weeks we have extended roll life by a few months in many cases,” says Beyer. “This quality control measure not only lowers costs for the replacement of these covers, but also minimizes equipment downtime.”
When placed between contacting rollers, the sensor film instantaneously and permanently changes color directly proportional to the actual pressure applied. Precise pressure magnitude is then easily determined by comparing color variation results to a color correlation chart (conceptually similar to interpreting litmus paper). Variations in pressure that lead to defects in papermaking, converting, and printing can be quickly and accurately detected and corrected—improving yield, decreasing scrap, and increasing productivity.
