Dispensing Solution for Display Protection
SCHREINER SERVICES
Dispensing Solution for Display Protection
Dispensing large labels by hand is anything but routine business especially since the material rolls in those cases may tip the scales at a weight of up to 15 kilograms. That makes the manual application of labels no mean feat.
For new on-board units, a customer required a large protective film that was supposed to be processed not in an automatic but a manual process. Unusual in that project was not only the weight of the roll but, above all, the dimension of the label. The Schreiner Services competence center developed a design for that purpose satisfying these special requirements.
About as long as a baking tray and as wide as an A4 sheet—with its dimensions of 400 × 210 millimeters, the label clearly is in the range of very large sizes. To reliably guide the web up to the dispensing edge, the experts of the competence center designed a special PeelAssistPlate. This robust guidance unit ensures plane positioning and controlled guidance of the liner material toward the edge. “The plate stabilizes the plate and enables a clean separation between the label and the liner,” explains Michael Reineke, the head of the competence center. As a result, processing remains reproducible even in the case of this unusual format in a stable process.
The plate stabilizes the film and enables clean separation between the label and liner.
The high weight of the rolls is the result of the desired running length: “In a manual process, you don’t want to change the roll every other minute,” says Michael Reineke. “Especially this format soon generates a considerable load.”
The materials accounted for another special aspect of the project: Both the label and the liner are transparent. Peel-off, however, was to be achievable without visual contrast edges. The team realized this by means of suitable sensors and slightly chamfered guidance at the dispensing edge enabling mechanically reliably separation—regardless of the properties of the ink or material.
The solution that has been developed shows how challenging label formats can be migrated into stable and efficient dispensing processes. The findings gained offer potential for further applications in which large protective films or high roll weights matter—especially where transparent materials call for reliable and controlled guidance.
