Case Study: Custom Polyester Thread for a Lingerie Specialist in Thailand
Source:Handcrafted Leather Badges /
Time:2026-09-18
Polyester Thread for a Lingerie Specialist in Thailand
A Lingerie Specialist approached us with a polyester thread requirement for the Thailand 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
- A trim that passed sampling but failed in-line because it was never cycle tested
- Reorders that quietly changed supplier and changed the hand feel
- A compliance document that arrived after the goods were already shipped

What we specified
| Item | Polyester Thread |
|---|---|
| Client type | A Lingerie Specialist |
| Market | Thailand |
| Order volume | 100,000 pieces across 3 specifications |
| Base material | Iron |
| Standard size | 38 mm Width |
| Finish | Laser Engraved Finish |
| Sampling rounds | 3 |
| Delivery window | 8 weeks from PO to ex-factory |
| Compliance | REACH SVHC Screening |
How it was resolved
- We rebuilt the specification around Iron and locked the tolerance before bulk.
- The finish was moved to Chrome Plating 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
- 100,000 pieces delivered inside the 8-week window.
- Unit cost held within 4.5% of the original quotation.
- Inspection-related rejection stayed under 0.5%.
- 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?
Tell us the item, the quantity and the delivery window. We will quote it with the sub-processes named, so the lead time you approve is the lead time you get.



