Custom Sewing Thread — Spandex Blend with Ultrasonic Welding
We supply sewing thread to garment factories and brands, built in Spandex Blend with ultrasonic welding for outerwear and jacket programmes. On a trim like this the specification that decides the outcome is lubrication level, because dry thread shreds at high machine speed, so that is agreed in writing before bulk — not discovered when the first carton is opened on the line. Programmes start at 5000 pieces per style per finish.
The failures here are predictable: colour drift between the approved sample and the bulk trim, or inconsistent sizing between production runs. We lock material, finish, dimension and tolerance before bulk, and prepare CPSIA and California Prop 65 compliance so the shipment clears instead of sitting at port while your selling season passes.
Specification
| Product | Sewing Thread |
|---|---|
| Count | Tex 30 |
| Type | core-spun polyester |
| Base material | Spandex Blend |
| Finish / process | Ultrasonic Welding |
| Colour options | 24 Pantone-matched shades |
| Packing | reel packed |
| MOQ | 5000 pieces per style per finish |
| Sampling | 12 working days, 5 days per revision |
| Bulk lead time | 25-50 days after approval |
| Compliance | CPSIA and California Prop 65 compliance; GRS recycled content claim |
| Ship to | Los Angeles or New York (North America) |
What buyers can customise
- Soft Enamel Fill — available on Spandex Blend, quoted per position and per colour.
- Heat-Cut Edge — available on Spandex Blend, quoted per position and per colour.
- UV Printing — available on Spandex Blend, quoted per position and per colour.
- Epoxy Dome — available on Spandex Blend, quoted per position and per colour.
- Piece Dyeing — available on Spandex Blend, quoted per position and per colour.
- Die-Casting — available on Spandex Blend, quoted per position and per colour.
- Powder Coating — available on Spandex Blend, 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 GRS recycled content claim are prepared for the destination market. We ship to Los Angeles or New York 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 lubrication level.
FAQ
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.
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.
How long does sampling take?
A first sample takes 12 working days, and each revision about 5 days.
What packing options are available?
Bulk packed, carded, or packed to your own size and design ratio with barcodes applied.
Start your sewing thread programme
If you already have a supplier, send us the last problem you had with them. That is usually where we start.
