How to maintain the sealing performance of aluminum foil three side sealed packaging bags

Aluminum foil three sided sealed packaging bag is a commonly used packaging material, mainly used for packaging products such as food, medicine, cosmetics, etc. Aluminum foil three edge sealed packaging bag is a type of packaging bag made by using aluminum foil material as a barrier layer and sealing three edges. It combines the excellent barrier performance of aluminum foil with the convenience of three sided sealing, becoming a favored packaging solution in many industries.
The sealing performance of aluminum foil three edge sealed packaging bags is crucial for protecting the quality and safety of the products inside the packaging. The following are several key aspects to ensure the sealing of aluminum foil three sided packaging bags:
1. Material selection
Aluminum foil material: Select high-quality aluminum foil material to ensure good ductility and flexibility, as well as sufficient thickness and strength to withstand various stresses during packaging and transportation.
Composite layer material: Aluminum foil three sided sealed packaging bags are usually composed of multiple layers of composite materials, including aluminum foil layers, inner layer materials, and outer layer materials. Choosing inner layer materials with good sealing performance (such as polyethylene PE) and outer layer materials with good weather resistance can effectively improve the overall sealing performance of packaging bags.
2. Processing technology
Sealing technology: using hot pressing sealing technology, by controlling temperature, pressure, and time, the aluminum foil and inner material form a good fusion bond at the sealing point, ensuring a firm and good sealing performance.
Production equipment: Use high-precision bag making machines and sealing machines to ensure that the size, edges, and sealing quality of the packaging bags are neat and consistent.
3. Sealing structure design
Three sided sealing: The design of the three sided sealing ensures that the packaging bag has sealing edges in all three directions, effectively reducing the risk of leakage. At the same time, design the width and depth of the seal reasonably to ensure sufficient strength and sealing performance at the seal.
Additional sealing measures: Additional sealing strips or sealants can be added at the sealing area to further enhance the sealing performance. In addition, secondary hot pressing treatment can be carried out at the sealing area to improve the firmness of the seal.
4. Quality inspection
Visual inspection: Conduct a visual inspection of the produced aluminum foil three sided sealed packaging bags, observing whether the sealing is smooth, and whether there are defects such as bubbles or cracks.
Sealing test: Use sealing testing equipment to conduct sealing tests on packaging bags, such as negative pressure test or positive pressure test, to ensure that the sealing performance of the packaging bags meets the standard requirements.
5. Storage and usage environment
Storage environment: Store the aluminum foil three sided sealed packaging bag in a dry, cool, and well ventilated environment, avoiding direct sunlight and high temperature and humidity conditions to prevent aging or deformation of the packaging bag from affecting its sealing.
Usage environment: During use, avoid piercing or tearing the packaging bag with sharp objects, as well as avoiding excessive compression or falling that may cause the seal to break.
In summary, through comprehensive control of material selection, processing technology, sealing structure design, quality inspection, and storage and use environment, aluminum foil three edge sealed packaging bags can ensure good sealing performance, effectively protecting the quality and safety of the products inside the packaging.