In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for a composite extruder used for TAC optical protective film on LCD polarizing plates. This composite extruder has been innovatively designed for the composite processing technology of TAC film, improving production efficiency and material performance consistency.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for a coiling equipment for PA6 composite materials used in solid-state batteries. This device is designed specifically for the winding process of battery materials, improving the uniformity and stability of material winding, and facilitating quality control in the production of solid-state battery materials.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for polyimide (PI) film processing equipment. This device is designed for the special performance of PI film, aiming to improve the stability and quality of film production, and meet the processing requirements of high-performance electronic materials.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a processing equipment patent for TAC optical protective film applied to LCD polarizing plates. This device has been optimized for the production process of TAC film, improving the optical performance and processing efficiency of the film material.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for a multi-layer composite processing equipment used for bamboo fiber degradation of agricultural film. This device supports the composite processing of multi-layer materials and focuses on the production of environmentally friendly degradable agricultural films to meet the needs of green agricultural development.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for a fully automatic robotic arm surface friction multifunctional rewinding machine for agricultural biodegradable materials. This equipment is designed specifically for agricultural biodegradable films. Through the combination of robotic arm automation and surface friction technology, it achieves multifunctional and efficient winding, improving product winding quality and production efficiency.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for an non-stop double column screen changing device for the extrusion process of biodegradable polymers. This device aims to achieve continuous replacement of the filter screen during the extrusion process, ensuring production continuity and material purity.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for a bio based biodegradable polymer recycling and granulation equipment. This device integrates crushing, melting, filtering, and granulation, supporting the recycling and resource management of biodegradable materials.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for an ETFE film material foam stabilization device used for battery panel packaging. The device improves the foam stability of ethylene tetrafluoroethylene copolymer (ETFE) film during film blowing to ensure uniform structure and stable performance of materials.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for an edge correction device for ultra-high molecular weight polyethylene (UHMWPE) carbon fiber composite film. This device aims to optimize edge control in the film production process, improve film width stability, and increase the yield of finished products.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for a central coiling equipment for the production process of PTFE proton exchange membranes. This equipment is designed specifically for polytetrafluoroethylene (PTFE) proton exchange membranes, aiming to improve the tension uniformity and overall product quality during the membrane material winding process.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for a guiding device for polyimide (PI) material blown film process. This technology aims to improve the tension control and guidance accuracy during the blown film forming process of PI film, ensuring the dimensional stability and quality consistency of the product.