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Easy-to-Peel Container Cover Film—China Suppliers and Factory for PE PP PET PVC PS Packaging Solutions
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—it can be tailored to fit five mainstream cup materials (PE/Polyethylene, PP/Polypropylene, PET/Polyethylene Terephthalate, PVC/Polyvinyl Chloride, and PS/Polystyrene) 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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PE/PP Cups (Melting Point 110–160°C): 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 80–100°C to ensure the heat-sealing layer melts quickly without damaging the cup. Peeling force is stabilized at 6–10N, balancing sealing and easy peeling.
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PET/PS Cups (Melting Point 220–260°C): The "high-temperature-resistant heat-sealing layer" is upgraded. High-temperature-resistant additives improve heat resistance, and the heat-sealing temperature is adjusted to 110–130°C. Substrate thickness is increased to 25–30μm, and peeling force remains at 8–14N.
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PVC Cups (Low Surface Tension): An additional "interface activation" process is added. Plasma treatment optimizes the surface tension of the film's heat-sealing surface. Heat-sealing pressure is adjusted from 0.3MPa to 0.5MPa to avoid bubbles and delamination, ensuring sealing integrity.
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There is no need to develop a new film for different cup materials. With the above process fine-tunings, the heat-sealing needs of all cup types can be met, 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 1–2μm) 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 1–1.5 seconds to 1.5–2 seconds) to form a uniformly bonded sealing surface, avoiding "torn cup mouths" caused by local over-adhesion.
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Consumers can easily lift the film with a single hand applying 5–12N of force — no tools required, making it convenient for the elderly and children. For yogurt cups (PP material), the film lifts completely in one go with no residue. For 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 the seal's extrusion resistance, preventing leakage during transportation. For refrigerated yogurt cups (PS material), the barrier effect is optimized to extend shelf life.
All process adjustments are based on food-grade raw materials and comply with the following international standards:
✔ FDA Certified
✔ EU 10/2011
✔ GB 4806.6
✔ No Plasticizers
✔ No Fluorescent Agents
✔ Microwave Safe ≤15s
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., 80°C and 0.3MPa for PE cups, 120°C and 0.4MPa for PET cups). No equipment or film substrate replacement is needed — 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 ±1.2μm. It smoothly passes through high-speed automatic sealing machines processing 150–200 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 one IPE film really be compatible with all five cup materials (PE, PP, PET, PVC, PS) without changing the substrate?
Yes. Our IPE film achieves compatibility with all five mainstream cup materials through targeted process adjustments — including fine-tuning the heat-sealing layer formula, interface activation treatment, and heat-sealing parameters (temperature, pressure, and time). There is no need to replace the film substrate or develop a new film for each material, significantly reducing procurement complexity and inventory costs.
Q What is the peeling force range, and is it safe for children and the elderly to open?
The peeling force is precisely controlled at 5–12N depending on the cup material and application. This range is designed to be easily manageable with one hand — no tools required — making it accessible for the elderly and children. The easy-peel design also reduces the risk of spills from hot beverages caused by excessive opening force.
Q Does the film leave any adhesive residue on the cup rim after peeling?
No. The film is engineered with an anti-adhesion coating (1–2μm for smooth-surfaced cups) and optimized heat-sealing time parameters for rough-surfaced cups to ensure a clean peel every time. For example, when used on PP yogurt cups, the film lifts completely in one motion without any residue sticking to the yogurt or the cup rim.
Q Is the IPE film compliant with food safety regulations for direct food contact?
Absolutely. All process adjustments are based on food-grade raw materials that comply with FDA (USA), EU 10/2011 (Europe), and GB 4806.6 (China) food contact material standards. The film contains no plasticizers or fluorescent agents, and no harmful substances are released during short-term microwave heating (≤15 seconds), making it safe for direct contact with all types of food and beverages.
Q Will switching between different cup materials require modifications to our existing production line or sealing equipment?
No equipment modification is needed. When switching cup materials, only the sealing machine's temperature and pressure parameters need to be adjusted (for example, 80°C / 0.3MPa for PE cups and 120°C / 0.4MPa for PET cups). This simple parameter adjustment increases switching efficiency by 60% and eliminates the need for new equipment investment or film substrate replacement.
Q Can the film support custom printing for branding, flavor labels, or easy-peel indicators?
Yes. The film surface is fully compatible with both flexographic and gravure printing methods. Process adjustments do not affect printing adhesion, which consistently reaches level 4B. Brand logos, flavor labels, and easy-peel edge arrow guides can all be customized. Printed patterns remain vivid and intact after refrigeration or heating, ensuring your brand image is clearly communicated throughout the product lifecycle.