Dr. Schenk GmbH

Release Liner, Label and Tape Inspection

Release liner, label and tape inspection
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...)
Label material inspection process
Label material inspection process

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.

Examples of typical coating applications and EasyInspect/EasyMeasure tasks:

  • Release liner inspection
  • Label material for pharmaceutical applications inspection
  • Label material for food products inspection

EasyInspect & EasyMeasure for release liners, labels and tapes use Dr. Schenk’s unique MIDA Technology to inspect base and converted materials with multiple optical channels on a single scan line. One defect generates multiple images to deliver the most comprehensive material analysis on the market.

 

Coating void defect
Coating void defect
Coating void defect
Coating void defect
Flow mark defect
Flow mark defect
Folding defect
Folding defect
Running Defect Map
Running Defect Map

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3-Day AOI training course at Dr. Schenk HQ in Martinsried, Germany

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