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High-Functionality Sauce Packaging – Acid and Alkali Resistant, Boiling Packaging from China Suppliers & Factory
Product Description
Sauce packaging fears leakage, boiled food packaging fears high-temperature deformation—traditional films often suffer from packaging damage due to insufficient corrosion resistance, liquid leakage due to low heat-sealing strength, or film surface shrinkage during boiling sterilization due to poor temperature resistance. Our high-functional IPE film integrates three core performances of "high-strength heat-sealing + acid-alkali corrosion resistance + wide temperature range tolerance" through multi-layer co-extrusion technology and special raw material formulation, providing a stable and reliable solution for sauce and boiled food packaging.
1
High-Strength Heat-Sealing: Reliable Protection Against Liquid Leakage
Using special heat-sealing resin and interlayer reinforcement technology, the film's heat-sealing strength is stably maintained at 20–25 N/15mm, far exceeding the industry's conventional standard of 15–18 N/15mm. Even when packaging thick sauces with particles (such as broad bean paste, beef sauce) or when internal pressure increases after boiling, the seal can still fit tightly without cracking or liquid leakage. Tests show that when the film bag containing sauce falls from a height of 1.2 meters or bears 5 kg of lateral pressure, the seal integrity rate reaches 100%, completely solving the leakage risk in sauce transportation and storage.
2
Acid-Alkali Corrosion Resistance: Suitable for Multiple Sauce Types
The film surface is added with chemical corrosion-resistant modifiers, forming a uniform protective layer through precision co-extrusion technology, which can withstand acid-alkali environments with pH 2–12 for a long time—whether it is acidic vinegar, tomato sauce, alkaline broad bean paste, or high-salt soy sauce and chili sauce, it can effectively block the penetration of sauce components, preventing the film from swelling, discoloration or strength attenuation. Even if the sauce is stored for a long time (more than 6 months), the packaging remains intact without affecting product quality and appearance.
3
Wide Temperature Range Resistance: Suitable for Boiling Sterilization Process
The raw material uses high-temperature resistant polyethylene substrate, which is subjected to special cross-linking treatment, expanding the film's temperature resistance range to -20℃ ~ 121℃: it can be used for frozen sauce storage at low temperatures, and can withstand 121℃ boiling sterilization at high temperatures (such as 10–30 minutes of boiling heating for prepared dishes). During the process, the film surface does not shrink or deform, and the heat-sealing strength attenuation rate is less than 5%. No additional protective layer is needed, directly adapting to the boiling packaging line of food factories, simplifying the production process and reducing packaging costs.
4
Safety Compliance and Efficient Processing: Balancing Practicality and Productivity
All raw materials comply with FDA and EU 10/2011 food contact standards, with no harmful substances precipitated during acid-alkali resistance and high-temperature resistance, and can directly contact food and sauces. The film surface has high flatness (thickness uniformity ±2μm), compatible with high-speed automatic packaging machines of 80–180 bags per minute, ensuring smooth conveying without jamming and reducing downtime for debugging. It also supports surface printing (adhesion up to 4B level), and can customize brand logos and product information, helping to improve the visual texture of packaging and enhance consumer recognition.
Frequently Asked Questions
Q
What is the heat-sealing strength of this IPE film, and how does it compare to standard packaging films?
Our IPE film achieves a heat-sealing strength of 20–25 N/15mm, which significantly exceeds the industry conventional standard of 15–18 N/15mm. This ensures that even heavy, particle-filled sauces or pressurized boiled food pouches remain securely sealed without cracking or leaking.
Q
What types of sauces is this film suitable for packaging?
The film is compatible with a wide range of sauce types, including acidic products (vinegar, tomato sauce), alkaline products (broad bean paste), and high-salt products (soy sauce, chili sauce). Its chemical corrosion-resistant modifier layer can withstand pH levels from 2 to 12, making it suitable for virtually all common sauce formulations.
Q
Can this film withstand boiling sterilization at 121℃?
Yes. Thanks to the high-temperature resistant polyethylene substrate and special cross-linking treatment, the film tolerates temperatures from -20℃ to 121℃. It can endure 10–30 minutes of boiling sterilization without surface shrinkage, deformation, or significant loss of heat-sealing strength (attenuation rate less than 5%).
Q
Does this film comply with international food safety standards?
All raw materials used in this IPE film comply with FDA (U.S.) and EU 10/2011 food contact material standards. No harmful substances are released during acid-alkali resistance testing or high-temperature processing, making the film safe for direct contact with food and sauces.
Q
Is this film compatible with high-speed automatic packaging machines?
Yes. The film's high surface flatness (thickness uniformity ±2μm) ensures smooth and consistent feeding on high-speed automatic packaging lines running at 80–180 bags per minute. It minimizes jamming and machine downtime, making it well-suited for large-scale food factory production environments.
Q
Can custom branding or product information be printed on this film?
Absolutely. The film surface supports high-quality printing with ink adhesion up to 4B level, allowing full customization of brand logos, product names, nutritional information, and other packaging graphics. This helps food brands enhance shelf appeal and improve consumer recognition.