冷凍食品包装材料ガイド：耐低温・耐ピンホール
冷凍食品包装のB2B材料ガイド。NY/PE、PET/PE構成、耐低温性、耐穿刺性、シール強度のポイントを解説します。
Why Frozen Food Packaging Needs Special Material Consideration
Frozen food packaging faces challenges that ambient and dry food packaging do not. At freezing temperatures (typically -18°C to -25°C for storage, sometimes lower for blast freezing), standard packaging materials can become brittle, seals can weaken and moisture migration can cause freezer burn. The packaging must perform reliably through the entire cold chain — from blast freezing to frozen storage, refrigerated transport and retail freezer display.
Key Packaging Performance Factors for Frozen Food
Several performance factors are critical for frozen food packaging.
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よくある質問
What material structure is suitable for frozen food packaging?
PET/PE is commonly used for general frozen vegetables and fruits — cost-effective with good moisture barrier. PA/PE (NY/PE) is recommended for frozen dumplings, meat and seafood needing better puncture resistance and cold tolerance. PET/NY/PE combines good print surface with puncture resistance. PET/VMPET/PE provides enhanced moisture barrier for long-term frozen storage. The best structure depends on your specific product, storage temperature and cold chain requirements.
Is PA/PE (NY/PE) suitable for frozen food packaging?
Yes. PA/PE is excellent for frozen food packaging, especially for products needing puncture resistance and low-temperature flexibility. The PA (polyamide/nylon) layer provides mechanical strength and cold tolerance, while the PE layer provides sealing and moisture barrier. This structure is commonly used for frozen dumplings, frozen meat products and frozen seafood.