Techpap SAS

Mottling Surface Roughness Measurement

LABORATORY SENSOR DESIGNED FOR MOTTLE AND SURFACE ROUGHNESS MEASUREMENT

> Designed for papermakers, baord makers, ink manufacturers, coating suppliers and printing operations

> Provides accurate and repeatable evaluations on :

• Quality of offset impressions, print mottling

• Precision of coating application

• Paper, board or other flat material roughness.

> Provides excellent correlation with human eye evaluation and sensitivity

> Practical, repeatable, and responsive

> Highly sensitive to mottle or smoothness changes

FRIENDLY SOFTWARE

> Measurement window

• 6 test reference windows

• Configurable results table

> Configuration window

• final mottling index is the result of the combination fo 5 individual class preset size

categories

> Result output inludes:

• average print mottle or surface smoothness

• deviation between measurements

• tolerance threshold

• class distribution

• class distribution standard deviation

RELIABLE AND POWERFUL

> Composed of CCD Camera and 2 light sources

> Stable sample illumination during capture and measurement process

> Individual analysis < 1 second

INTERPRETATION AND CORRELATION OF RESULTS

> Excellent correlation with visual inspection

> Excellent result linearity

> Perfect repeatability of the measurement algoryithm

SYSTEM DETAILS

> CCD camera with lens closehoop control

> Diffused light source for mottling analysis on printed samples

> 8° angle light for roughness analysis on paper

> Gigabite card

> Connection cables