Over the years, cold-formed foil has been successfully applied in fields such as pharmaceuticals, medical devices, and in vitro diagnostics - instant detection kits. As research scientists continue to create innovative solutions, the demand for cold-formed foils continues to grow and develop. Therefore, it is crucial to have a thorough understanding of the specific requirements that these foils need to meet, how to achieve the required performance, and how the requirements and material design affect the overall packaging design.

In the early 1960s, Karl Klein developed the first machine to create cavities or water bubbles containing aluminum foil that could hold solid drugs. Since then, this technology has been implemented in various other applications.

The basic advantages of cold stamping are obvious. Although each specific application has its own unique requirements, almost all situations require factors such as oxygen and moisture barriers, physical product protection during manufacturing, distribution, and use, sealing of lids or other equipment components, and design processes that are easy to manufacture in packaging. Other advantages include opacity (to prevent UV exposure), chemical resistance, metallic appearance, and ease of opening, among others.

In addition to these basic advantages, cold stamping, as a composite material, also has strong optimizability and adaptability. He can adjust the material ratio or replace materials according to the characteristics of the packaged material to meet the needs of the contents. For example, the formation of flexible barrier materials during cold forming can cause local stretching and thickness changes in the film. The final shape, draft angle, and direct stretching ratio of the material are closely related. Adjusting the thickness of materials and selecting materials with appropriate stretching ratios play a decisive role in the final presentation effect of packaging.

In recent years, the themes of "plastic ban" and "recyclability" have been driving the development of cold formed aluminum. The use of environmentally friendly plastics such as PET and PP instead of PVC in materials has also become a new trend. Although the application has not yet been popularized, the updating and upgrading of materials have not stopped.