Case Study: Custom Nylon Zipper for a Startup Apparel Label in the United States

Nylon Zipper for a Startup Apparel Label in the United States

A Startup Apparel Label approached us with a nylon zipper requirement for the the United States 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

• Shrinkage that only showed up after the first wash
• Reorders that quietly changed supplier and changed the hand feel
• A spec that lived in an email instead of a tech pack

What we specified

How it was resolved

1. We rebuilt the specification around ABS Resin and locked the tolerance before bulk.
2. The finish was moved to Black Nickel 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

• 20,000 pieces delivered inside the 4-week window.
• Unit cost held within 2.0% of the original quotation.
• Inspection-related rejection stayed under 1.0%.
• The specification is now on file, so reorders reproduce the approved sample.

What we would repeat

Approve a pre-production sample made from the actual bulk base material. Substitute material behaves differently in finishing.

Planning something similar?

Share the programme details and we will propose two alternatives — one optimised for unit cost, one for lead time — and let you choose.