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High Temperature Resistant 121℃ Cooking PE Packaging for Pre-Cooked Dishes - China Suppliers & Factory
Product Description
121℃ Retort Packaging-Specific IPE Film: All-PE Material Adapted to High-Temperature Sterilization, Guarding Room-Temperature Fresh Storage of Food
121℃ high-temperature retort is a core sterilization process for food to achieve long-term room-temperature storage. However, traditional films often fail to adapt to this temperature environment, resulting in problems such as film deformation, seal leakage, and barrier failure, which directly affect food safety and shelf life. Our 121℃ retort packaging-specific IPE film, through customized PE raw materials and multi-layer structure optimization, achieves precise adaptation to the 121℃ retort process, solving industry pain points from three dimensions of temperature resistance, sealing, and automated processing, and providing a stable and reliable packaging solution for food enterprises.
1
Precise Temperature Resistance Design for 121℃ Retort: Stable and Reliable in High-Temperature Environment
Special modified polyethylene resin is used as the core raw material, combined with multi-layer co-extrusion technology to precisely control the film's molecular structure, enabling the film to stably withstand 121℃ saturated steam retorting (conventional sterilization time 15–30 minutes). After high-temperature retorting, the horizontal and vertical shrinkage rates of the film are both < 2%, with no shrinkage or deformation, which can completely maintain the packaging shape and avoid seal cracking or content extrusion caused by film shrinkage. At the same time, the raw materials comply with FDA and EU 10/2011 food contact standards, with no harmful substances precipitated at 121℃, ensuring food hygiene and safety even when directly in contact with high-temperature oily foods (such as braised pork ribs, braised pork trotters).
2
High-Temperature Tough Seal: No Leakage or Cracking After Retorting
To solve the industry problem of easy seal failure after 121℃ retorting, an innovative "high-temperature resistant heat-sealing layer + interlayer reinforcement structure" is designed: the heat-sealing layer adopts a high-stability PE resin formula, which can form a dense and high-temperature resistant sealing layer at a heat-sealing temperature of 110–130℃, with a heat-sealing strength of 22–28N/15mm; the interlayer reinforcement structure improves the film's integrity through molecular bonding technology, avoiding the risk of delamination. Even after 121℃ high-temperature retorting, the seal can resist external extrusion and stretching. According to actual tests, after packaging prepared dishes with soup (such as hot and sour soup, tomato beef brisket) and retorting at 121℃ for 30 minutes, there is no dripping after inversion for 24 hours, and the seal integrity rate is 100% after falling from a height of 1.5 meters, completely solving the leakage risk of retort packaging.
3
Automated Compatibility Process: Improve Production Efficiency
Produced by precision five-layer co-extrusion blown film technology, the film's thickness deviation is strictly controlled within 2%–4%, far better than the industry's conventional standard of 5%–8%, ensuring smooth transportation of the film on the automatic retort packaging line, no jamming or waste film, and reducing production loss. The film has a wide heat-sealing temperature range (110–130℃), no need to frequently adjust equipment parameters, and can be compatible with high-speed retort packaging machines of 80–120 bags per minute, greatly improving production line efficiency. In addition, the film supports surface printing, and the pattern adhesion still reaches 4B level after 121℃ high-temperature retorting, which can clearly present key information such as brand logos, product shelf life, and sterilization marks, balancing production practicality and brand information transmission.
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Frequently Asked Questions
Q1
What makes your IPE film suitable for 121℃ retort sterilization processes?
Our IPE film uses special modified polyethylene resin combined with multi-layer co-extrusion technology to precisely control the film's molecular structure. This allows it to withstand 121℃ saturated steam retorting for 15–30 minutes without deformation. The horizontal and vertical shrinkage rates are both kept below 2%, ensuring the packaging shape remains intact throughout the sterilization process.
Q2
Is the IPE film safe for direct contact with high-temperature oily foods?
Yes. The raw materials used comply with both FDA and EU 10/2011 food contact safety standards. No harmful substances are precipitated at 121℃, making it completely safe for direct contact with high-temperature oily foods such as braised pork ribs, braised pork trotters, and other fatty prepared dishes.
Q3
What is the heat-sealing strength of this IPE film, and can it prevent leakage after retorting?
The film achieves a heat-sealing strength of 22–28N/15mm at a heat-sealing temperature of 110–130℃. After 121℃ retorting for 30 minutes, packaging remains fully leak-proof — no dripping after inversion for 24 hours, and a 100% seal integrity rate after a 1.5-meter drop test — completely eliminating leakage risks in retort packaging.
Q4
How does the five-layer co-extrusion technology improve production line efficiency?
The precision five-layer co-extrusion blown film technology controls thickness deviation within just 2%–4%, far exceeding the industry standard of 5%–8%. This ensures smooth, jam-free film transport on automatic retort packaging lines. Combined with the wide heat-sealing temperature range of 110–130℃, the film is compatible with high-speed machines running at 80–120 bags per minute, significantly boosting production efficiency.
Q5
Can the IPE film support surface printing for branding and product labeling?
Yes. The film fully supports surface printing, and pattern adhesion maintains a 4B level even after 121℃ high-temperature retorting. This means brand logos, product shelf life information, sterilization marks, and other key content can be clearly displayed on the packaging without fading or peeling.
Q6
What types of food products are best suited for packaging with this 121℃ retort IPE film?
This film is ideal for a wide range of prepared and processed foods that require room-temperature long-term storage, including soup-based dishes (e.g., hot and sour soup, tomato beef brisket), fatty meat products (e.g., braised pork ribs, braised pork trotters), and other high-moisture or high-oil content foods that undergo 121℃ industrial sterilization before distribution.