Explore Tapio articles on practical insights for paper, board, and plastic film production. In these articles, we cover common quality issues — like thickness variation and roll defects—and show how our measurement tools can make them visible. You’ll also find updates on the latest features and technologies from Tapio.
Roll Hardness Profilers for Paper, Board, Films and Foils Compared Quick summary Roll hardness measurement is one of the few practical, non-destructive ways to understand the internal
Hidden variations in paper and board machines: when online scanners miss the real variation Have you ever chased a persistent basis weight, moisture, or caliper variation, only
Basis Weight Prediction Using Optical Transmissivity and Caliper Data For decades, the paper industry has relied on beta-radiation gauges to measure basis weight, one of the most
Every mill knows the frustration of a “bad” roll — unscheduled downtime, customer complaints, wasted materials, and production delays. But what if you could detect roll defects before they cause expensive problems? The good news: you can. And it starts with understanding roll hardness profiles.
Using Hardness Variation (CV%) to Identify Defective Rolls “Papermaking would be easy, if only there were no edges!” Problem: Converter rejects were traced back to certain rolls,
Continous Profile Porosity Sensors Porosity: an important quality parameter Porosity and air/gas permeability are important quality parameters for many paper, board and nonwoven products. Laboratory testers can
Reducing plastic film roll rejections with roll hardness profiling A plastic film producer was experiencing quality issues: around 25% of produced rolls were rejected by the customer
How Tapio Analysis Helps Solve Barring Problems In paper and board production, calender roll barring is a significant problem which can lead to unscheduled maintenance breaks and
How Product Variations can Cause Winder Vibration A winder–cutter is not an easy system to optimize. Changing web tensions, roll diameters, masses and rotational frequencies all interact,
Roll Hardness Profiles – What Can the Statistics Tell Us? Quality of rolls is not about appearance – it depends both on the rolled material and on
Optimizing paper and board machine CD profiles with Tapio Analysis In modern paper production, achieving an efficient and accurate cross-direction (CD) profile is critical for product quality
Locate problematic machine elements using Tapio MD Analysis During a shutdown, several components are replaced. But how do you know which one actually caused the problem? In
Hidden defects in rolls: a closer look with Tapio RQP Live A paper, board or plastic roll may appear perfectly fine on the outside. The surface layers