Puff printing uses a specific type of ink known as puff ink, which contains a heat-activated additive. This additive is responsible for the "puffing" effect that occurs during the printing process. As the ink heats up, the additive in the puff ink causes it to expand, creating a raised, puffy texture on the surface of the fabric.

Puff print is often used to emphasize certain aspects of a design, like logos or text, making them more noticeable and adding an extra layer of creativity to the final product. It's a versatile technique that can be applied to a variety of textiles, making it a favorite for custom apparel, streetwear, and promotional items!