Contact person
Hans Christiansson
Application engineer
Contact Hans
Print sharpness software
Print sharpness is a factor of immediate importance in inkjet printing due to the inherent risk of lateral spread of the low viscosity inks used.
High print sharpness is a basic characteristic of high print quality.
You can now make the measurements in your own lab using this software!
Purpose
The software can be used for:
- Measure if the print sharpness (a combination of raggedness and blurriness) is acceptable and stable over time
- Monitor how new settings in the productions affect the print sharpness
- Check if new products are better or not
- Benchmark to competitors
Method
Quantify the print sharpness using high resolution images from a scanner or microscope.
The measurements are not restricted to a certain print form, instead any printed line or edge can be used for the analysis, for example part of a letter.
The software will calculate two different values:
- The raggedness which is the length of the contour of an edge compared to the perfect straight contour (left image)
- The blurriness meaning the width of the transition zone between ink and unprinted area (right image)
A high-quality flatbed scanner is used to collect the images in 4800 dpi resolution. This corresponds to pixel size 5.3x5.3 µm, needed to reveal the fine scale print defects.
Note: A scanner specified for 4800 dpi optical resolution is not always giving acceptable results.
Image analysis is used to calculate the raggedness and the blurriness on the measured lines and shapes.
Deliveries
User license of the software package Print Sharpness.
Manuals describing installation, scanning and evaluation (in English).
