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China Easy-to-Peel Container Cover Film Suppliers - High-Quality PE PP PET PVC PS Film from Factory
Product Description
IPE Film for Easy-Peel Lid Packaging: Process-Adjustable for Multi-Material Compatibility + Easy-Peel & No Residue, Reconstructing the Consumer Experience of Cup Products
In the cup-based food and beverage industry, balancing "reliable sealing" and "convenient opening" has always been a core challenge in packaging design. Traditional films often have fixed processes that cannot adapt to the heat-sealing requirements of different cup materials, leading to heat-sealing failure or uncontrolled peeling force. This leaves consumers facing problems such as "unopenable" or "torn and leaky" packaging, or even adhesive residues.
The core advantage of our IPE film specifically designed for easy-peel lid packaging lies in its adjustable processes โ it can be tailored to fit five mainstream cup materials (PE, PP, PET, PVC, and PS) without replacing the film substrate. Only by fine-tuning the heat-sealing layer formula and interface treatment process can it achieve the dual effects of "strong sealing" and "easy-peel with no residue", providing flexible and customized packaging solutions for different cup-based products such as milk tea, yogurt, hot drinks, and jelly.
1
Differentiated Process Adjustments: Targeted Compatibility with Five Cup Materials
To address differences in melting points, surface tension, and heat-sealing characteristics of different cup materials, we have established a "material-process" matching system, achieving precise compatibility through three core process adjustments:
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Low-melting-point PE/PP cups (melting point 110โ160โ): A "low-temperature heat-sealing layer" formula is adopted. Low-melting-point modified IPE resin is integrated during multi-layer co-extrusion, controlling the heat-sealing temperature at 80โ100โ to ensure the heat-sealing layer melts quickly without damaging the cup. By adjusting molecular crystallinity, the peeling force is stabilized at 6โ10N, balancing sealing and easy peeling.
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Medium-to-high-melting-point PET/PS cups (melting point 220โ260โ): The "high-temperature-resistant heat-sealing layer" is upgraded. High-temperature-resistant additives improve heat resistance, and the heat-sealing temperature is adjusted to 110โ130โ. Combined with a slight increase in substrate thickness (25โ30ฮผm), heat-sealing strength is enhanced while the peeling force remains at 8โ14N.
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Low-surface-tension PVC cups: An additional "interface activation" process is added. Plasma treatment optimizes the surface tension of the film's heat-sealing surface, improving adhesion to PVC cups. Heat-sealing pressure is adjusted from 0.3MPa to 0.5MPa to avoid bubbles and delamination, ensuring sealing integrity.
๐ก Key Benefit: No need to develop a new film for different cup materials. With these process fine-tunings, all cup type heat-sealing needs are met โ completely solving the production pain point of "needing to change films when changing cup materials" and reducing procurement and inventory costs.
2
Core Advantage of Easy-Peel with No Residue: Process-Adjustable for Convenience and Cleanliness
The core of easy-peel performance lies in "controllable peeling force". We achieve consistent easy-peel experiences across different cup materials through process adjustments:
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Smooth-surfaced cups (PE/PP/PET): The thickness of the anti-adhesion coating is adjusted (controlled at 1โ2ฮผm) to prevent excessive fusion between the film and the cup mouth, ensuring no adhesive residue during peeling.
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Slightly rough-surfaced cups (PS/PVC): The heat-sealing time is optimized (from 1โ1.5 seconds to 1.5โ2 seconds) to form a uniformly bonded sealing surface, avoiding "torn cup mouths" caused by local over-adhesion.
Ultimately, consumers can easily lift the film with a single hand applying 5โ12N of force โ no tools required, making it convenient for the elderly and children. For example, when packaging yogurt cups (PP material), the film can be lifted completely in one go without residue. When packaging hot drink cups (PET material), the easy-peel design reduces the risk of hot drink spills caused by excessive force, enhancing usage safety.
3
Strong Sealing Performance: No Compromise on Sealing with Process Adjustments
The core of process adjustments is "adaptation rather than compromise". Regardless of the cup material, the film consistently maintains reliable sealing performance:
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Basic sealing guarantee: The middle layer uses a high-density IPE substrate, combined with a precision embossing process to form a tight sealing structure that effectively blocks air, moisture, and external contaminants, preventing content spoilage.
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Targeted enhancement: For milk tea cups (PE material, with granular ingredients), the heat-sealing width is fine-tuned to enhance extrusion resistance, preventing leakage during transportation. For refrigerated yogurt cups (PS material), the barrier effect is optimized to extend shelf life.
๐ Food Safety & Compliance
All process adjustments are based on food-grade raw materials. They contain no plasticizers or fluorescent agents, and no harmful substances are released during short-term microwave heating (โค15 seconds), making them suitable for direct contact with various food and beverage products.
FDA Compliant
EU 10/2011
GB 4806.6
4
Compatibility with Commercial Production: Process-Adjustable for Enhanced Enterprise Efficiency
To meet the diverse needs of automated production lines for cup-based products, our process adjustments offer the advantage of "rapid response":
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No production line modification required: Only the temperature and pressure parameters of the sealing machine need to be adjusted according to the cup material (e.g., 80โ and 0.3MPa for PE cups, 120โ and 0.4MPa for PET cups). No need to replace equipment or film substrates โ switching efficiency increases by 60%.
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Stable mass production guarantee: Using a five-layer co-extrusion blown film process, thickness uniformity is controlled within ยฑ1.2ฮผm. It smoothly passes through high-speed automatic sealing machines processing 150โ200 cups per minute, with no wrinkles or jamming, and a production loss rate of less than 0.5%.
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Compatible with customized printing: The film surface supports flexographic and gravure printing. Process adjustments do not affect printing adhesion (still reaching level 4B). Brand logos, flavor labels, and "easy-peel edge" arrow guides can be customized. Patterns remain clear and do not peel off after refrigeration or heating, balancing production efficiency and brand image transmission.
Frequently Asked Questions
Q Can the IPE film work with all five cup materials without changing the film substrate?
Yes. Our IPE film is designed to be process-adjustable, meaning only the heat-sealing layer formula, temperature, and pressure parameters need to be fine-tuned to achieve compatibility with PE, PP, PET, PVC, and PS cup materials. There is no need to replace the film substrate or develop a new film for each material, which significantly reduces procurement and inventory costs for manufacturers.
Q What is the typical peeling force required to open the easy-peel lid?
The peeling force is carefully controlled through process adjustments. Depending on the cup material, the peeling force typically ranges from 5โ14N. For most applications (such as yogurt or beverage cups), consumers can open the lid with a single hand applying just 5โ12N of force โ no tools required. This design is especially user-friendly for the elderly and children.
Q Does the IPE film leave any adhesive residue after peeling?
No. The film is engineered to ensure a clean, residue-free peel. For smooth-surfaced cups (PE/PP/PET), the anti-adhesion coating thickness is precisely controlled at 1โ2ฮผm to prevent excessive fusion. For slightly rough-surfaced cups (PS/PVC), optimized heat-sealing time ensures a uniformly bonded sealing surface, eliminating the risk of adhesive residue or torn cup mouths.
Q Is the IPE film safe for direct food contact and microwave use?
Yes. All raw materials used are food-grade and comply with FDA, EU 10/2011, and GB 4806.6 standards. The film contains no plasticizers or fluorescent agents. It does not release harmful substances during short-term microwave heating (โค15 seconds), making it safe for direct contact with a wide range of food and beverage products.
Q Will switching between different cup materials on the production line require major equipment changes?
No major changes are needed. Switching between cup materials only requires adjusting the temperature and pressure parameters on the sealing machine (for example, 80โ / 0.3MPa for PE cups, and 120โ / 0.4MPa for PET cups). No equipment replacement or film substrate changes are necessary, and this streamlined process can increase switching efficiency by up to 60%.
Q Can custom branding and printing be applied to the IPE film?
Yes. The film surface is fully compatible with flexographic and gravure printing. Process adjustments do not affect printing adhesion, which consistently reaches level 4B. Manufacturers can customize brand logos, flavor labels, and "easy-peel edge" arrow guides. Printed patterns remain sharp and do not peel off after refrigeration or heating, ensuring strong brand presentation throughout the product's shelf life.