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Easy-to-Peel Container Cover Film | China Suppliers & 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:
| Cup Material | Melting Point | Heat-Sealing Temp. | Peeling Force | Key Process |
|---|---|---|---|---|
| PE / PP | 110–160℃ | 80–100℃ | 6–10 N | Low-temp heat-sealing layer; adjusted molecular crystallinity |
| PET / PS | 220–260℃ | 110–130℃ | 8–14 N | High-temp-resistant additives; substrate 25–30 μm |
| PVC | Low surface tension | Adjusted | Stable | Plasma treatment; pressure 0.3→0.5 MPa |
- PE/PP cups (110–160℃): Low-temperature heat-sealing layer formula adopted. Low-melting-point modified IPE resin integrated during multi-layer co-extrusion, controlling heat-sealing temperature at 80–100℃ to ensure the heat-sealing layer melts quickly without damaging the cup. Peeling force stabilized at 6–10N.
- PET/PS cups (220–260℃): High-temperature-resistant heat-sealing layer upgraded. High-temp-resistant additives improve heat resistance; heat-sealing temperature adjusted to 110–130℃. Substrate thickness increased to 25–30μm, heat-sealing strength enhanced, peeling force remains at 8–14N.
- PVC cups (low surface tension): Additional "interface activation" process added. Plasma treatment optimizes the film's heat-sealing surface tension; heat-sealing pressure adjusted from 0.3MPa to 0.5MPa to avoid bubbles and delamination, ensuring sealing integrity.
★
No new film development required. 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:
- Smooth-surfaced cups (PE/PP/PET): Anti-adhesion coating thickness 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): Heat-sealing time 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.
★
Consumers can easily lift the film with a single hand applying 5–12N of force, no tools required—convenient for the elderly and children. For yogurt cups (PP), the film lifts completely in one go with no residue. For hot drink cups (PET), 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 for milk tea cups (PE): Heat-sealing width fine-tuned to enhance the seal's extrusion resistance, preventing leakage during transportation.
- Targeted enhancement for refrigerated yogurt cups (PS): Barrier effect optimized to extend shelf life.
Food Safety & Compliance Standards:
✔ FDA Certified
✔ EU 10/2011
✔ GB 4806.6
✔ No Plasticizers
✔ No Fluorescent Agents
✔ Microwave Safe ≤15s
All process adjustments are based on food-grade raw materials. 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℃ / 0.3MPa for PE cups; 120℃ / 0.4MPa for PET cups). No need to replace equipment or film substrates — switching efficiency increased by 60%.
- Stable mass production guarantee: Five-layer co-extrusion blown film process controls thickness uniformity within ±1.2μm. 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%.
- 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.
FAQ
Frequently Asked Questions
Q
Can one IPE film really be compatible with all five cup materials (PE, PP, PET, PVC, PS) without changing the film substrate?
Yes. Our IPE film achieves compatibility with all five mainstream cup materials through targeted process adjustments—fine-tuning the heat-sealing layer formula, interface treatment, and sealing machine parameters (temperature and pressure). There is no need to develop a new film or replace the substrate, significantly reducing procurement complexity and inventory costs for enterprises.
Q
What is the peeling force range, and is it consistent across different cup materials?
The peeling force is controlled within 5–14N depending on the cup material and process adjustment plan. For PE/PP cups it is 6–10N, and for PET/PS cups it is 8–14N. Consumers typically need only 5–12N of hand force to open the lid cleanly in one motion—no tools required, making it accessible for the elderly and children alike.
Q
Will there be adhesive residue left on the cup mouth after peeling?
No. For smooth-surfaced cups (PE/PP/PET), the anti-adhesion coating thickness is precisely controlled at 1–2μm to prevent excessive fusion between the film and the cup mouth. For slightly rough-surfaced cups (PS/PVC), the optimized heat-sealing time ensures a uniform bond, avoiding local over-adhesion that could cause tearing or residue. The result is a clean, residue-free peel every time.
Q
Does the IPE film meet international food safety standards? Is it safe for microwave use?
Yes. All process adjustments use food-grade raw materials and comply with FDA, EU 10/2011, and GB 4806.6 standards. The film contains no plasticizers or fluorescent agents. During short-term microwave heating (≤15 seconds), no harmful substances are released, making it safe for direct contact with a wide range of food and beverage products.
Q
How quickly can production lines switch between different cup materials, and is any equipment modification needed?
No equipment modification is needed. Switching only requires adjusting the temperature and pressure parameters on the existing sealing machine (for example, 80℃ / 0.3MPa for PE cups and 120℃ / 0.4MPa for PET cups). This process increases switching efficiency by 60% compared to traditional film-changing methods, minimizing downtime and operational disruption.
Q
Can the IPE film support custom brand printing, and will print quality be affected by process adjustments?
Yes. The film surface is fully compatible with 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 sharp and intact after refrigeration or heating cycles, ensuring both production efficiency and strong brand presentation.