In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for an extrusion screw for the production of TPU self-healing film. This technology focuses on improving the extrusion processing efficiency and material properties of thermoplastic polyurethane (TPU) films, and is expected to optimize the production process of self-healing films.
The application of this patent demonstrates the company's innovative exploration in the field of polymer material equipment technology, aiming to support the industrial application of environmentally friendly functional materials, promote the technological progress and market competitiveness of related products.
