Case Study: Custom Polyester Thread for an Airline Catering Supplier in Colombia
Source:Embossed Cards /
Time:2026-09-18
Polyester Thread for an Airline Catering Supplier in Colombia
An Airline Catering Supplier approached us with a polyester thread requirement for the Colombia 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
- Shade drift between the approved lab dip and the bulk lot
- Elastic that lost recovery after three washes
- Shrinkage that only showed up after the first wash
What we specified
| Item | Polyester Thread |
|---|---|
| Client type | An Airline Catering Supplier |
| Market | Colombia |
| Order volume | 50,000 pieces across 2 specifications |
| Base material | PU Leather |
| Standard size | 5# Gauge |
| Finish | Mercerised Finish |
| Sampling rounds | 2 |
| Delivery window | 4 weeks from PO to ex-factory |
| Compliance | GB 18401 |
How it was resolved
- We rebuilt the specification around PU Leather and locked the tolerance before bulk.
- The finish was moved to Yarn-Dyed Finish 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 4-week window.
- Unit cost held within 1.5% 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
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.
