Q: What should I check when receiving a zipper shipment?
Start with the paperwork: the packing list, the approved sample, the shade standard and any test report should match the shipment. Then sample to an agreed AQL plan rather than checking only the top layer of the carton. Record the lot number, because it is the key to any later traceability question.
On the physical check, verify chain type and size, finished length against tolerance, tape width, color against the standard under defined lighting, and the slider type and finish. Cycle every sampled zipper through its full length, listening and feeling for tight spots, and pull the slider sideways to check that it holds. Inspect the ends for properly set stops and clean cutting, and check that the tape is free of oil, stains and needle damage.
Finally, confirm the packing: quantity per bag, labels, barcode and carton condition. Keep the inspection record and a retained sample from each lot. If a discrepancy appears, raise it before the goods are cut or sewn, because a claim after assembly is much harder to resolve and the cost of rework usually exceeds the value of the zipper itself.