Contact person
Bodil Kajrup
Laboratory assistant
Contact Bodil
Print sharpness measurement
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.
Purpose
Measurement of Print sharpness can be used to:
- Check if the print raggedness and blurriness is acceptable and stable over time
- Benchmark to competitors
- Monitor how new settings in the productions affect the print raggedness and blurriness
- Check if new products are better or not
Method
Quantify the print sharpness using high resolution images from a microscope or professional scanner.
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.
Two different properties are calculated:
- The raggedness which is the length of the contour of an edge compared to the perfect straight contour
- The blurriness meaning the width of the transition zone between ink and unprinted area
Image analysis is used to calculate the raggedness and the blurriness on the measured lines and shapes.
Deliveries
- The raggedness which is the length of the contour of an edge compared to the perfect straight contour
- The blurriness meaning the width of the transition zone between ink and unprinted area.
Results delivered as an Excel file.
