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Missing dots measurement

The problem of missing dots occurs especially in gravure printing. Quantifying the amount of missing dots using the right tools allows you to monitor the problem to see if the if the print quality is acceptable.

Surface roughness measurement using OptiTopo technique

The unique OptiTopo technique used for print prediction quickly reveals the correlation between paper surface and print defects such as uncovered area or missing dots

Micro Gloss variation - a way of measuring gloss quality as we perceive it

The micro gloss variation measurement gives a more comprehensive and correct understanding of how the surface is perceived when it comes to gloss compared to the standard gloss equipment like Hunter, Lehman and Zehntner devices

Optical formation measurement

Optical formation is the variation you see when looking through a paper illuminated from the back side. Fibre flocks of different sizes and shapes can be seen as well as wire marks. For coated paper qualities the coating can r

The advanced OptiTopo Expert unit - turns L&W OptiTopo into a powerful R&D tool

The unique OptiTopo technique used for print prediction quickly reveals the correlation between paper surface and print defects such as uncovered area or missing dots. You can use it in your own lab!

Characterization of mechanical properties of paperboard, corrugated board, paper and liner

Mechanical propertis of paper, paperboards, liner and other paper based materials are needed to determine the behaviour of end-products, or to do FEM simulations of paper materials.

Mottle evaluation - Measure reflectance variations as we perceive it

Mottle is without doubt one of the most important factors regarding visual impression of print quality. Investigations in our perception laboratory show that the calculated mottle values correlate very well to the human percept

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