Improve package security by verifying all cartons in-line and reduce complaints of point of sales
For security reasons, e.g. anti-counterfeiting, a carton is (pre) printed with an invisible security marking. Before the carton is leaving the packaging machine it has to make sure that the invisible marking is present and is containing the correct information. Otherwise the carton can not be verified as authentic in a later stage in the production, logistics or point of sales.
Luminescence sensors detect marks that are only visible under UV light. This is due to fluorescent substances contained in the mark, which convert the UV light into visible light. The reflected light beam is received by the luminescence sensor and evaluated.