食品包裝袋在選擇冷凍時要注意什么？

來源：http:/// 日期：2024-01-11

耐沖擊性：冷凍食品在運輸，裝卸和貨架放置過程中很容易受到外力的破壞。當包裝袋的抗沖擊性差時，很容易折斷袋子并打開袋子，這不僅影響包裝產品的外觀，包裝袋的抗沖擊性可以通過擺錘的抗沖擊性測試來測量。

Impact resistance: Frozen food is easily damaged by external forces during transportation, loading and unloading, and shelf placement. When the impact resistance of the packaging bag is poor, it is easy to break the bag and open it, which not only affects the appearance of the packaged product, but also the impact resistance of the packaging bag can be measured through the impact resistance test of the pendulum.

熱合強度：如果包裝袋的熱合強度不夠或虛封，輕微的沖擊會導致密封破裂；如果熱封溫度過高，則容易造成熱封層的破壞，并且容易使密封線的材料強度降低。一旦受到強烈的振動或沖擊，就容易引起袋子破裂和大面積的爛袋現(xiàn)象，這使得無法有效保護內部包裝食品。

Heat sealing strength: If the heat sealing strength of the packaging bag is insufficient or not sealed properly, a slight impact can cause the seal to break; If the heat sealing temperature is too high, it is easy to cause damage to the heat sealing layer and reduce the strength of the sealing line material. Once subjected to strong vibration or impact, it is easy to cause bag breakage and large areas of rotten bags, which makes it difficult to effectively protect the internal packaging of food.

層間剝離的張力和強度：如果包裝袋之間的剝離強度小且拉力不夠，則包裝袋的機械性能較差，容易造成包裝袋分層，無法達到應有的承重作用，導致降低了包裝袋的保護性能，大大縮短了內部食品的貨架壽命。

Tension and strength of interlayer peeling: If the peeling strength between packaging bags is small and insufficient, the mechanical performance of the packaging bags is poor, which can easily cause layering of the packaging bags and fail to achieve the expected load-bearing effect, resulting in a decrease in the protective performance of the packaging bags and greatly shortening the shelf life of internal food.

耐穿刺性：冷凍食品通常在冷凍后變硬，特別是魚類和肉類產品，含有骨頭和堅硬的物體，在產品被擠壓后的運輸和堆放過程中很容易刺破包裝袋，使包裝袋的密封性受損，因此冷凍食品包裝袋的抗穿刺性要求很高。

Durability to puncture: Frozen food usually hardens after freezing, especially fish and meat products, which contain bones and hard objects. During transportation and stacking after the product is compressed, it is easy to puncture the packaging bag, causing damage to the sealing of the packaging bag. Therefore, the puncture resistance of frozen food packaging bags is very high.

是耐壓力：在運輸和裝卸過程中，振動，掉落或撞擊會損壞運輸包裝，甚內部銷售包裝。因此，應在冷凍食品包裝上進行相關的振動或跌落測試。選擇能夠保護冷凍食品質量，體現(xiàn)其商品價值，使綜合包裝成本合理的包裝材料。

It is pressure resistant: during transportation and loading and unloading, vibration, dropping or impact can damage the transportation packaging, and even the internal sales packaging. Therefore, relevant vibration or drop tests should be conducted on frozen food packaging. Choose packaging materials that can protect the quality of frozen food, reflect its product value, and make the overall packaging cost reasonable.

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