Do not settle it with “left out, right out” alone
Photograph how the roll is positioned, the label face and the web path, and mark the winding and the winding-out direction with arrows. The equipment manual or on-site diagram should be confirmed together with the purchase order.
Write the specification of one label roll in full
Besides label width and height, record the liner width, gap, core inner diameter, maximum outer diameter, quantity per roll, splice requirements and packing method. Mark unknown items as to be confirmed by the equipment owner.
Confirm the production batch only after a test run
Test webbing, release, positioning and reading on the actual packaging, equipment and planned speed. Record where and under what conditions a fault appears, approve the corrected sample, and only then use it as the basis for the batch.
Discussion checklist
| Item | What to prepare | Basis of confirmation |
|---|---|---|
| Label and liner | Size, gap and liner width | Checked by production |
| Roll specification | Core, outer diameter and quantity per roll | Provided by the equipment owner |
| Winding direction | Direction shown in the diagram and label orientation | Confirmed on the diagram by both sides |
| Test run | Equipment, packaging and fault records | Keep the sample and the records |