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.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for an extrusion screw used in optical grade polyvinyl alcohol (PVA) materials. This technology focuses on improving the extrusion process of optical film materials, optimizing material uniformity and transparency to meet the high standard requirements for material quality in optical products.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. applied for a patent for PTFE proton exchange membrane extrusion screw used in the field of protective clothing. This technology is aimed at the extrusion molding process of polytetrafluoroethylene (PTFE) proton exchange membranes, aiming to improve the stability of material processing and the quality of finished products, and meet the strict requirements of protective clothing for membrane materials.

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.

In 2025, Changzhou Hefeng Packaging Materials Co., Ltd. officially applied for the national science and technology enterprise qualification. The application aims to further strengthen the scientific research and innovation capabilities of the enterprise, and promote the deep integration of technology research and industrialization. As an important participant in the field of new materials, the company actively responds to the national innovation driven development strategy by continuously improving its research and development system and enhancing its technological level.

In 2024, Changzhou Hefeng Packaging Materials Co., Ltd. will conduct research and development experiments on biodegradable and highly transparent materials, committed to developing environmentally friendly high-performance packaging materials to respond to the market's demand for green packaging.

In 2023, Changzhou Hefeng Packaging Materials Co., Ltd. launched research and development experiments on bamboo fiber degraded agricultural film materials, exploring new eco-friendly agricultural film materials with the aim of promoting the green and sustainable development of agricultural films.

In 2018, Changzhou Hefeng Packaging Materials Co., Ltd. invested in the establishment of Changzhou Haifeier Machinery Co., Ltd., focusing on independent research and development and manufacturing of equipment related to polymer new materials. This provides important support for the technological innovation and industrial upgrading of enterprises in the field of new materials.

In 2017, Changzhou Hefeng Packaging Materials Co., Ltd. introduced a waterproof material production line and began to enter the field of SBS waterproof roll material manufacturing. The operation of this production line provides technical support for the company to expand its product line and market applications.