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What are the requirements for selecting materials for food vacuum packaging?
2025,08,29
The material selection for food vacuum packaging has the following key requirements:
Chemical stability:
Food vacuum packaging materials must not undergo any chemical reaction with the packaged food, which is the primary condition for ensuring food safety. Materials should ensure that they do not have harmful effects on food throughout the entire process of storage, transportation, and use.
Physical and mechanical properties:
Food vacuum packaging materials should have good impact resistance and stretchability, while not easily tearing, to ensure effective protection of food from external physical damage during transportation and storage.
Barrier performance:
Food vacuum packaging needs to have appropriate barrier properties, which can prevent moisture and water, while maintaining a certain degree of breathability to achieve the purpose of preservation. This helps prevent eating
Products are affected by moisture, oxygen, and other external factors, which can prolong the shelf life of food
Temperature resistance:
Given that many foods require low-temperature storage and high-temperature heating disinfection, food vacuum packaging materials should have high temperature resistance. This includes maintaining flexibility at low temperatures and not melting or deforming at high temperatures.
Environmental Protection and Safety:
The material should be non-toxic, odorless, and meet food safety standards, and should not pose any harm to consumers. Meanwhile, with the increasing awareness of environmental protection, choosing recyclable and biodegradable environmentally friendly materials has become an important consideration factor.
Transparency and Appearance:
Food vacuum packaging materials usually require high transparency so that consumers can clearly see the food inside the packaging. In addition, good appearance and glossiness also help enhance the attractiveness of the product.
Cost effectiveness:
On the premise of meeting the above requirements, the cost-effectiveness of materials also needs to be considered. Choosing materials with high cost-effectiveness can help reduce production costs and improve the market competitiveness of products.
In summary, the selection of materials for food vacuum packaging should comprehensively consider multiple requirements such as chemical stability, physical and mechanical properties, barrier properties, temperature resistance, environmental protection and safety, transparency and appearance, and cost-effectiveness. Common food vacuum packaging materials include polyvinyl chloride (PVC), polypropylene (PP), polystyrene (PS), polyester (PET), etc. These materials have their own characteristics and can be selected according to specific application scenarios and needs.
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