Release Liner, Label and Tape Inspection

EasyInspect for release liner, label, and tape inspection detects defects and irregularities during each stage of of the production of release liner, label stock and tape materials, especially in the adhesive and silicone layers. 

Typical material inspection tasks for primary product labels, point-of-sale labels, functional or security labels include:

• Base label material (gels, burnt spots, orange peel, scratches, streaks, foldings, inclusions...)
• Silicone coating on release liners (missing coating, silicone voids, particles...)
• Release liner base (inclusions, variations in structure...)
• Adhesive film (uncoated areas, coating streaks, drying marks, bubbles...)
• Finished label stock (lamination defects, paper folds, bubbles...)

For some applications strict legal requirements exist for the information printed on labels to be legible without fail. The printing quality depends largely on the quality of the involved base material. Optical inspection systems are used to ensure label stock quality.

Separating a release liner from a label can also present a challenge when the silicone layers of the release liner were not evenly applied. Putting automated in-line control system in place to inspect and measure the silicone coating process can help to detect irregularities and maintain continuous label stock quality.