Tech Tuesday- Ultrasonic Welding

Our ski jackets and pants are waterproof thanks in part to Dermizax. Another ingredient to the waterproof recipe is seam sealing. Where ever stitches are made they need to be seam sealed to ensure that the jacket does not leak.

Instead of stitching, on some of our jackets we use a method called ultrasonic welding. Essentially, a high velocity wheel bonds the pieces of the jackets together with out any stitches. It creates a very strong, clean, and waterproof seam. We also use it in the collar of a number of our jackets for design detail. Below is an example of an ultrasonic welder in action.

For our men's and ladies PRIME jacket- a 4-way stretch, 800 fill down waterproof jacket- we used ultrasonic welding to form the baffles of the jacket. On the jacket these baffles are curved, which is technically very difficult to keep the seams flat.