Contrast sensors ensure labels are aligned on boxes of sweets
During high-volume production of confectionery, sealed cartons of bagged candy travel by conveyor to a labelling station. Contrinex’s versatile and high-performance, RGB light-based photoelectric contrast sensor checks the label’s alignment and confirms the presence of print registration markings. If a label is blank, illegible or wrongly positioned, the carton is diverted to a holding area for investigation.