Contact person
Hans Christiansson
Application engineer
Contact Hans
STFI-Mottling Expert software
The easy to use and well-known STFI-Mottling Expert software is today used all over the world in the paper and paperboard industry to quantify the mottle on printed products as well as white-top mottle on unprinted paperboard.
You can buy it and use it in your own lab.
Purpose
Advanced image analysis technique is used to filter the scanned images to simulate the human vision system (eyes and brain). This makes the results very reliable and correlate well to panel tests where a group of people rank the samples.
To increase the reliability, the image from the scanner is calibrated to reflectance using the included reflectance calibration set.
Method
Fields of application - Measure reflectance variations (mottle) on:
- Unprinted board (white top mottling)
- Mono-colored solid and screened prints
- Uncovered area (UCA) - totally white spots in solid prints (extra toolbox)
- Missing dots in gravure print (extra toolbox)
- Coating thickness variations after using a burnout technique on the samples (making the wood fibres black and keeping the coating white)
- Optical formation can be calculated if the samples are thin enough for the scanner transparency unit
- Also, other types of reflectance variations can be characterized, such as formation of non-woven products and orientation of mottle on corrugated board
Deliveries
- One single-user license of the software package STFI-Mottling Expert
- Manuals describing scanning and evaluation (in english)
- A reflectance calibration set used when scanning the samples
