Custom Sewing Thread — Silk with Ultrasonic Welding
We supply sewing thread to garment factories and brands, built in Silk with ultrasonic welding for bridal and eveningwear studios. On a trim like this the specification that decides the outcome is tenacity and elongation, which set the stitch strength, so that is agreed in writing before bulk — not discovered when the first carton is opened on the line. Programmes start at 500 pieces per style per finish.
The failures here are predictable: packing that arrives mixed and unusable on the line, or colour drift between the approved sample and the bulk trim. We lock material, finish, dimension and tolerance before bulk, and prepare REACH and GPSR documentation so the shipment clears instead of sitting at port while your selling season passes.
Specification
| Product | Sewing Thread |
|---|---|
| Count | Tex 80 |
| Type | filament polyester |
| Base material | Silk |
| Finish / process | Ultrasonic Welding |
| Colour options | 8 Pantone-matched shades |
| Packing | polybag per 100 |
| MOQ | 500 pieces per style per finish |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 25-30 days after approval |
| Compliance | REACH and GPSR documentation; salt spray test for metal finishes |
| Ship to | Rotterdam or Felixstowe (Europe) |
What buyers can customise
- Crochet — available on Silk, quoted per position and per colour.
- UV Printing — available on Silk, quoted per position and per colour.
- Stamping — available on Silk, quoted per position and per colour.
- Paint Spray — available on Silk, quoted per position and per colour.
- Mercerised Finish — available on Silk, quoted per position and per colour.
- Anti-Rust Treatment — available on Silk, quoted per position and per colour.
- Soft Enamel Fill — available on Silk, quoted per position and per colour.
How we produce it
- Drawing or reference sample review, with size and finish confirmed
- Material selection and a finish sample or strike-off
- Prototype made to the agreed count
- Fit and wash test on the actual garment fabric, then a pre-production sample
- Bulk run with ultrasonic welding applied under controlled settings
- In-line inspection, final AQL 2.5 inspection and packing to your ratio
Where it is used
- Denim and workwear — hard-wearing finishes that survive industrial washing
- Outerwear and tailoring — matched to the shell fabric so it drapes with the garment
- Childrenswear and schoolwear — tested to the destination's safety standard
- Bridal and eveningwear — small runs with hand-finished detail
- Uniform and corporate programmes — repeatable spec held on file for reorders
Packing, testing and delivery
Trims are packed to the ratio you specify — by size, by colour or by garment set — with barcodes applied where the line needs them. Test reports for salt spray test for metal finishes are prepared for the destination market. We ship to Rotterdam or Felixstowe with the commercial invoice, packing list and certificate of origin, and hold the approved reference so reorders reproduce the same material, the same finish and the same tenacity and elongation.
FAQ
Which compliance documents do you provide?
We prepare salt spray test for metal finishes and the supporting test reports for the destination market.
Can you match a reference sample?
Yes. Send the trim and we match material, finish and shade, then confirm on a pre-production sample before bulk.
What is the minimum order?
Programmes start at 500 pieces per style per finish. Mixed sizes are fine within one style.
How do you control colour on reorders?
The approved reference and the bulk standard are retained, and every reorder is checked against them before shipment.
Start your sewing thread programme
Tell us the quantity, the target price and the delivery window — we will tell you what is realistic before you commit.
