Case Study: Custom Closed-End Zipper for a Home Textile Brand in Indonesia
Source:Birthstone Crystal Keychains /
Time:2026-09-18
Closed-End Zipper for a Home Textile Brand in Indonesia
A Home Textile Brand approached us with a closed-end zipper requirement for the Indonesia 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
- Cartons packed to the factory ratio instead of the buyer's size ratio
- MOQ that was quoted per colourway rather than per style
- Shrinkage that only showed up after the first wash

What we specified
| Item | Closed-End Zipper |
|---|---|
| Client type | A Home Textile Brand |
| Market | Indonesia |
| Order volume | 50,000 pieces across 2 specifications |
| Base material | Bamboo |
| Standard size | 50 mm Width |
| Finish | Pearlescent Coating |
| Sampling rounds | 3 |
| Delivery window | 6 weeks from PO to ex-factory |
| Compliance | GRS |
How it was resolved
- We rebuilt the specification around Bamboo and locked the tolerance before bulk.
- The finish was moved to Matte Black Coating after strike-off tests showed better durability.
- A pre-production sample was approved and retained as the golden reference.
- Production ran with in-line inspection and a mid-run photo report.
- Cartons were packed to the client's own barcode and ratio specification.

Result
- 50,000 pieces delivered inside the 6-week window.
- Unit cost held within 1.5% 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
Fix the specification count early. Adding variants after production starts is the most expensive change a client can request.
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.



