High pressure film plays an important role in food packaging, mainly reflected in the following aspects:
Sealing performance: High pressure film can provide excellent sealing performance, effectively prevent the intrusion of external air, moisture, bacteria and other substances, and maintain the freshness and quality of food. Sealed packaging can extend the shelf life of food, reduce the possibility of food spoilage and deterioration, and ensure food safety.
Gas barrier properties: High pressure film usually has good gas barrier properties, which can block the penetration of oxygen, carbon dioxide and other gases, effectively prevent oxidation reactions and bacterial growth, and maintain the freshness, color and taste of food. This gas barrier property helps protect the quality of easily oxidized ingredients in food and improves food stability and quality.
Impact resistance: High pressure film usually has certain impact resistance, which can resist external impact during packaging, transportation, storage and use, prevent packaging from being damaged or broken, and ensure the integrity of food packaging. This helps reduce food losses during transportation and storage and ensures food safety and hygiene.
Temperature adaptability: High pressure film usually has good temperature adaptability, can maintain stable performance under different temperature conditions, and is not easy to deform or crack. This enables food packaging to adapt to different transportation, storage and use environments, ensuring the safety and reliability of food packaging.
Environmental performance: High pressure film is usually made of environmentally friendly materials and has good degradability or recyclability, which is beneficial to reducing the pollution and impact of packaging waste on the environment. Choosing environmentally friendly high pressure film can promote the sustainable development of the food packaging industry and ensure the safety and environmental protection of food packaging.
To sum up, the protective role of high pressure film in food packaging is reflected in many aspects such as sealing performance, gas barrier performance, impact resistance, temperature adaptability and environmental protection performance, providing an effective guarantee for the safety, freshness and quality of food. protection.
