Custom Zipper in Polypropylene (PP) with Ultrasonic Welding for E-commerce and Small-Batch Brands

Custom Zipper — Polypropylene (PP) with Ultrasonic Welding

We supply zipper to garment factories and brands, built in Polypropylene (PP) with ultrasonic welding for denim and workwear programmes. On a trim like this the specification that decides the outcome is slider smoothness across the full length, tested by hand on bulk, 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 packing that arrives mixed and unusable on the line. 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

What buyers can customise

• Nickel Plating — available on Polypropylene (PP), quoted per position and per colour.
• Knitted Structure — available on Polypropylene (PP), quoted per position and per colour.
• Braided Weave — available on Polypropylene (PP), quoted per position and per colour.
• Gold Plating — available on Polypropylene (PP), quoted per position and per colour.
• Heat Transfer Printing — available on Polypropylene (PP), quoted per position and per colour.
• Mirror Polish — available on Polypropylene (PP), quoted per position and per colour.
• Debossing — available on Polypropylene (PP), quoted per position and per colour.

How we produce it

1. Drawing or reference sample review, with size and finish confirmed
2. Material selection and a finish sample or strike-off
3. Prototype made to the agreed gauge
4. Fit and wash test on the actual garment fabric, then a pre-production sample
5. Bulk run with ultrasonic welding applied under controlled settings
6. 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 CPSIA lead and phthalate testing 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 slider smoothness across the full length.

FAQ

Do you ship to our forwarder?

Yes. We deliver to your nominated forwarder or quote landed cost under the agreed Incoterm.

How long does sampling take?

A first sample takes 10 working days, and each revision about 3 days.

What is the minimum order?

Programmes start at 5000 pieces per style per finish. Mixed sizes are fine within one style.

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.

Start your zipper programme

If you already have a supplier, send us the last problem you had with them. That is usually where we start.