Label-related defects are the most common cause of product recalls. In most cases, the problem is totally preventable. Products with faulty or incorrect labels lead to dissatisfied customers. In the worst case scenario, the wrong label on a product may create serious health issues for the consumer, especially if included allergens are undeclared.
It takes great time and effort to create a compelling label design that will catch the eye of consumers, as well as communicating the qualities of a product and adhering to labelling regulations for a given country and industry. When a label is dispatched to retailers with folds, tears, or flagged edges, it undermines the effectiveness of the label design and wastes the effort taken to create it. A label that is correctly positioned without imperfections helps improve a product's first impression.
Malfunctioning label applicators will cause a label to be applied incorrectly. Label inspection systems plot the position of labels along both the x and y axis, even on un-oriented products, and reject products with damaged, skewed or missing labels. Due to the very high speed of many labelling applications, any misalignment needs to be detected as soon as possible.
Other standard vision inspections include: Closure presence, closure height and position (cocked cap), tamper band presence and integrity, container contamination, sealing surface integrity, neck thread formation, flashing and container integrity.