Case Study: Custom Mulberry Silk Fabric for an Independent Boutique in Finland
Source:Iridescent Crystal Beads /
Time:2026-09-18
Mulberry Silk Fabric for an Independent Boutique in Finland
An Independent Boutique approached us with a mulberry silk fabric requirement for the Finland 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 zipper puller that broke under pull test at the warehouse
- Elastic that lost recovery after three washes
- Reorders that quietly changed supplier and changed the hand feel

What we specified
| Item | Mulberry Silk Fabric |
|---|---|
| Client type | An Independent Boutique |
| Market | Finland |
| Order volume | 20,000 pieces across 4 specifications |
| Base material | Genuine Leather |
| Standard size | 110 gsm |
| Finish | Nickel-Free Electroplating |
| Sampling rounds | 4 |
| Delivery window | 6 weeks from PO to ex-factory |
| Compliance | California Prop 65 |
How it was resolved
- We rebuilt the specification around Genuine Leather and locked the tolerance before bulk.
- The finish was moved to Enzyme Wash 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
- 20,000 pieces delivered inside the 6-week window.
- Unit cost held within 3.0% 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
Approve a pre-production sample made from the actual bulk base material. Substitute material behaves differently in finishing.
Planning something similar?
If you are comparing suppliers, send us the spec they quoted against. We will quote the same spec and show you where the difference sits.



