TEMA PI-WEB

TEMA PI-WEB, Mühlbauer’s print inspection solution for web material, is integrated into the printing line. While being in continuous forward movement the web surface is constantly scanned by color line-scan cameras; consequently, the inspection area where the material has to be kept tight and plain is only a narrow range in cross direction. The LED lighting system is best adaptable to the individual characteristics of both web material and decoration. The print quality is determined by comparing the print image against a stored reference. Quality assessment is immediately available. The main defects to be detected are color variations, out of register/offset, distorted print, stains, blobs, smear, voids, missing print, inhomogeneous substrate, and scratches or blisters as far as visible in the camera image. Detected defects are indicated on the monitor. The defect signal can be used for triggering a warning signal, a marking unit, or even a machine stop if necessary.