Case Study: Custom Open-End Zipper for a Bag and Luggage Maker in Mexico

Open-End Zipper for a Bag and Luggage Maker in Mexico

A Bag and Luggage Maker approached us with a open-end zipper requirement for the Mexico market. The brief was specific: a defined look, a hard launch date and a unit cost that had to survive freight and duty. This case study records what was specified, what went wrong in sampling and how the bulk order was delivered.

The challenge

• Lead time quoted without the plating or dyeing sub-process
• A zipper puller that broke under pull test at the warehouse
• A trim that passed sampling but failed in-line because it was never cycle tested

What we specified

How it was resolved

1. We rebuilt the specification around PU Leather and locked the tolerance before bulk.
2. The finish was moved to Gunmetal Finish after strike-off tests showed better durability.
3. A pre-production sample was approved and retained as the golden reference.
4. Production ran with in-line inspection and a mid-run photo report.
5. Cartons were packed to the client's own barcode and ratio specification.

Result

• 10,000 pieces delivered inside the 8-week window.
• Unit cost held within 2.0% of the original quotation.
• Inspection-related rejection stayed under 1.5%.
• The specification is now on file, so reorders reproduce the approved sample.

What we would repeat

Lock the material standard before sampling. Once the base changes, every downstream approval has to be redone and the calendar slips.

Planning something similar?

Send the reference sample or tech pack and we will come back with a costed specification, a sampling timetable and the compliance documents your market requires.