Through recent analysis of DTF production challenges, I noticed that many discussions still focus heavily on printers, ink density, film coating, and color performance. These are all important. But in real production, one material often quietly determines whether the final transfer can survive washing, stretching, friction, and long-term wear: hot melt powder. In the DTF process, hot melt powder is not just an auxiliary consumable. It is the bonding layer between the printed ink structure and the textile surface. If ink gives the design its color, and DTF film controls release and surface effect, then hot melt powder determines whether the design can truly stay on the garment. Among different types of hot melt adhesive powder, TPU powder has become one of the most widely used and well-balanced options in textile DTF transfer. TPU stands for thermoplastic polyurethane. It is a polymer material that combines rubber-like elasticity with plastic-like processing characteristics. In practica...