Preparing the screen.
A film positive is made from your artwork and exposed onto a fabric screen that has been coated with a photosensitive emulsion. The excess emulsion is then washed off the screen surface, leaving your design as a clear area for the ink to pass through.

Printing:
The printers insert the balloon into a slot which then inflates the balloon. The balloon rotates to a station where the screen compresses the balloon to create a flat printing surface. A squeegee then passes ink across the screen, transferring ink to the side of the balloon.