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Easy-to-Peel Container Cover Film - Transparent Polyethylene IPE Film by China Suppliers and Factory for Food Packaging
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:
PE / PP Cups — Low-Temperature Heat-Sealing Layer (Melting Point 110–160℃)
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℃ to ensure the heat-sealing layer melts quickly without damaging the cup. Meanwhile, by adjusting molecular crystallinity, the peeling force is stabilized at 6–10N, balancing sealing and easy peeling.
PET / PS Cups — High-Temperature-Resistant Heat-Sealing Layer (Melting Point 220–260℃)
The "high-temperature-resistant heat-sealing layer" is upgraded. High-temperature-resistant additives are added to improve the heat resistance of the heat-sealing layer, and the heat-sealing temperature is adjusted to 110–130℃. Combined with a slight adjustment of the substrate thickness (increased to 25–30μm), the heat-sealing strength is enhanced to prevent film embrittlement at high temperatures, while the peeling force remains at 8–14N.
PVC Cups — Interface Activation Process
An additional "interface activation" process is added. Plasma treatment is used to optimize the surface tension of the film's heat-sealing surface, improving adhesion to PVC cups. At the same time, the heat-sealing pressure is adjusted (from 0.3MPa to 0.5MPa) to avoid bubbles and delamination after heat-sealing, 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 for enterprises 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:
- 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.
- 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 between the heat-sealing layer and the cup mouth, avoiding the problem of "torn cup mouths" caused by local over-adhesion.
5–12N
Single-hand peeling force
0 Residue
No adhesive left on cup
1-Hand
No tools required
✓ Safe
Reduced hot drink spill risk
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 to use. For example, when packaging yogurt cups (PP material), the film can be lifted completely in one go without residue sticking to the yogurt. 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:
- 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.
- Targeted enhancement — Milk tea cups (PE material): The heat-sealing width is fine-tuned to enhance the seal's extrusion resistance, preventing leakage during transportation.
- Targeted enhancement — Refrigerated yogurt cups (PS material): The barrier effect is optimized to extend shelf life.
All process adjustments are based on food-grade raw materials. Compliance certifications include:
✔ FDA Certified
✔ EU 10/2011
✔ GB 4806.6
✔ No Plasticizers
✔ No Fluorescent Agents
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No harmful substances are released during short-term microwave heating (≤15 seconds), making them suitable for direct contact with various food and beverage products.
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":
- 🔧 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℃ and 0.3MPa for PE cups, 120℃ and 0.4MPa for PET cups). There is no need to replace equipment or film substrates, increasing switching efficiency by 60%.
- ⚙️ Stable mass production guarantee: Using a five-layer co-extrusion blown film process, the thickness uniformity of the film is controlled within ±1.2μm. It can smoothly pass through high-speed automatic sealing machines processing 150–200 cups per minute, with no wrinkles or jamming during transportation, and a production loss rate of less than 0.5%.
- 🎨 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, and 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 be used with all five cup materials without changing the film substrate?
Yes. Our IPE film is engineered with an adjustable process system. By fine-tuning the heat-sealing layer formula, interface treatment, and sealing machine parameters (temperature and pressure), the same film substrate can be adapted to PE, PP, PET, PVC, and PS cup materials. There is no need to develop or switch to a different film for each cup type.
Q What peeling force is required to open the easy-peel lid, and is it suitable for elderly users or children?
The peeling force is precisely controlled at 5–12N depending on the cup material and process settings. This range is designed to be comfortably achievable with one hand without any tools, making it accessible and safe for elderly users and children. The easy-peel design also reduces the risk of spills when opening hot drink cups.
Q Does the film leave any adhesive residue on the cup mouth after peeling?
No. The film is engineered to leave zero adhesive residue after peeling. For smooth-surfaced cups (PE/PP/PET), the anti-adhesion coating thickness is controlled at 1–2μm to prevent over-fusion. For slightly rough-surfaced cups (PS/PVC), heat-sealing time is optimized to ensure a uniformly bonded surface, eliminating local over-adhesion and preventing cup mouth tearing or residue.
Q Is this IPE film food-safe and compliant with international standards?
Yes. All process adjustments are made using food-grade raw materials. The film complies with FDA (USA), EU 10/2011 (Europe), and GB 4806.6 (China) food contact material standards. It contains no plasticizers or fluorescent agents, and releases no harmful substances during short-term microwave heating (≤15 seconds), making it safe for direct contact with food and beverages.
Q How does the film perform on high-speed automated sealing production lines?
The film is manufactured using a five-layer co-extrusion blown film process with thickness uniformity controlled within ±1.2μm. It is fully compatible with high-speed automatic sealing machines running at 150–200 cups per minute, with no wrinkles or jamming during transportation. The production loss rate is less than 0.5%, and switching between cup materials requires only parameter adjustments—no equipment replacement—improving line switching efficiency by up to 60%.
Q Can custom branding and printing be applied to the IPE film?
Yes. The film surface supports both flexographic and gravure printing. Process adjustments do not affect printing adhesion, which consistently reaches level 4B. Custom elements such as brand logos, flavor labels, and "easy-peel edge" arrow guides can be applied. Printed patterns remain clear and intact after refrigeration or heating, ensuring both production efficiency and strong brand presentation.