sublimation ink is a special type of ink used primarily for printing on materials that can absorb dye, such as polyester fabrics. When heated, this ink turns into gas without becoming a liquid, allowing it to penetrate the surface of the material. This process creates vibrant, long-lasting images that are resistant to fading and washing. This ink is commonly used in textile printing, promotional products, and custom apparel. It requires a heat press or a sublimation printer to transfer the design onto the substrate. The result is a smooth finish with rich colors, making it popular for creating personalized items.