This seemingly simple yet versatile material is fundamentally transforming how we package products. Lidding films have become a crucial player in the packaging industry.
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Lidding film refers to thin, flexible plastic sheets sealed over container openings to provide an additional barrier against external contaminants like dust, moisture, and microbes.
It is commonly used in the food industry to provide a secure and tamper-evident closure for various products during manufacturing, distribution and storage.
Lidding films can be made from different materials, such as polyethylene, polypropylene, and PET which offer varying degrees of strength and barrier properties.
Lidding film has certainly carved out an important role in today’s packaging market, achieving significant success, particularly in the realm of flexible plastic packaging. Their compact and space-saving design appeals to many brand owners and manufacturers.
Through the advantages of preservation, efficiency, sustainability, and user experience, lidding films have emerged as the quiet revolutionaries of the packaging sector. Their many contributions will continue shaping innovative solutions for the future.
Lidding films find diverse applications across various industries including:
In the ever-evolving landscape of food packaging, lidding films emerge as the unsung heroes.
Common food products packaged with lidding film include yogurt, margarine, dips, spreads, ready meals, snacks, etc. This helps keep food fresh and seals in flavors and aromas.
In the era of on-the-go lifestyles, ready-to-eat meals have become a staple. Lidding film provides a secure seal for trays of pre-packaged meals, preserving the flavor, texture, and nutritional value. From the microwave to the table, the freshness is sealed in every moment.
Common material structures for lidding film food packaging include:
Trust is key in the world of food packaging, and jelly lidding films provide an extra layer of assurance except for their properties of robust seal.
Designed with tamper-evident features, these peeling films offer a visible signal to consumers that the jar has not been opened or tampered with, ensuring the integrity and safety of the delightful jelly inside.
Common materials for the jelly lidding film include:
Yogurt, with its creamy texture and probiotic benefits, has become a staple in many people’s diets. Behind every perfectly sealed yogurt cup lies an important component that ensures freshness, hygiene, and consumer satisfaction, which is the yogurt lidding film.
Lidding films play a crucial role in packaging yogurt by creating an effective barrier that keeps the product protected until it is opened. The film seals in the yogurt’s flavors, texture, and nutritional value while preventing external contaminants from entering.
By maintaining yogurt’s quality and extending its shelf life, lidding films directly impact the consumer experience – they take enjoyment of each cup. Brands also benefit from yogurt remaining fresh during its journey from the factory to store shelves to people’s homes.
The lidding film material structure for yogurt is Ink/MPET/easy-peel coating.
The base material of the yogurt cup is sheets and paper with hot melt adhesive. When producing yogurt, the sheet will bond with the decorative printed paper together. Then heat sealing the lidding film after the yogurt is filled.
Milkshakes, with their creamy indulgence and delectable flavors, are a treat for the senses. Behind every frosty delight lies a packaging hero ensuring freshness, hygiene, and that perfect sip – the Milkshake Lidding Film.
At the core of Milkshake Lidding Films is the commitment to preserving the creamy texture and luscious flavors of milkshakes. These peelable lidding films create an impeccable seal, safeguarding the milkshake from external elements and ensuring that each sip is as velvety and delightful as intended.
Milkshake Lidding Films are easy to access, often featuring peelable seals that offer consumers a convenient way to open the container without the need for additional tools.
When chips are packaged in paper boxes, they generally require a layer of lidding film to lock in the freshness. The lidding film tightly seals over the rim to fully cover and encapsulate the chips.
This peelable lidding film protects the chips from outside contaminants and moisture that could compromise quality.
A common material structure for chip bag lidding films is PET/Paper/PET/AL/PE. This multilayer construction provides several key advantages:
In industries where purity and cleanliness are of utmost importance, such as personal care, mouthwash, and household goods, lidding films play a vital safeguarding role.
Clean Products Lidding Films are a crucial component designed to maintain the integrity of contents. Their key purpose is to preserve freshness, assure purity, and protect against external contaminants that could compromise the packaged items.
Whether sealing in formulas for cosmetics, skincare, or cleaning supplies, Clean Products Lidding Films serve as a guardian of the contents’ carefree usability through reliable preservation of their intended condition from factory to home. Their role in assuring purity is paramount for these industries.
A frequently used material structure for lidding films intended for clean/hygienic products is PET/MPET/easy peel PE.
The MPET (modified polyethylene terephthalate) layer in this setup provides robust barrier properties that effectively extend product shelf life. MPET bars oxygen and moisture from compromising the purity and quality of packaged items.
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Combined with PET, which offers strength and clarity, and a peelable PE layer for convenient sealability, this composite film formulation addresses key needs for clean product packaging.
In the realm of medical packaging, where precision, sterility, and safety are paramount, Dropper Lidding Films stand as a key component in preserving the integrity of liquid medications and healthcare solutions.
Medical solutions often include sensitive formulations that require protection from external factors. Dropper Lidding Films, with their excellent barrier properties, act as a shield against light, air, and contaminants, contributing to the stability and efficacy of the medical contents.
The common material structures for droppers are PET/AL/easy peel PE and PET/AL/PET/easy peel PE. AL layer supplies a high barrier to protect the content in the dropper.
Whether sealing in formulas for cosmetics, skincare, or cleaning supplies, Clean Products Lidding Films serve as a guardian of the contents’ carefree usability through reliable preservation of their intended condition from factory to home. Their role in assuring purity is paramount for these industries.
When it comes to food packaging, getting the seal right is just as important as the tray it covers. Lidding film plays a vital role in keeping contents fresh, extending shelf life, and ensuring a secure seal – whether that’s for ready meals, deli produce, or fresh ingredients. At SystemPAK, we offer a versatile range of lidding films to suit various tray materials and sealing requirements. Here, we break down the differences between weld seal and peelable seal options to help you choose the right solution for your packaging needs.
Lidding film is the top layer of a packaging system, designed to seal onto trays made from materials like APET, CPET, or pressed board. The film needs to create a secure seal during the packaging process, which is why factors such as sealing temperature, dwell time, and tray type all matter.
Let’s explore the lidding film options available at SystemPAK – and what makes each one suitable for different packaging applications.
Weld seal films are designed to form a strong, permanent bond with the tray. They’re ideal when tamper-proof packaging or high-pressure sealing is required, offering durability and peace of mind for food producers.
1. ECOPET 12/15mu Weld Seal with Anti-Fog (PCJ)
This high-performance film seals securely to APET, CPET, and rPET trays at temperatures between 140–160°C with a dwell time of 1–3 seconds. For pressed board trays, higher temperatures of 180–200°C and dwell times of 2–5 seconds are recommended due to the increased sealing pressure.
2. PET/PP 12/30mu Weld Seal with Anti-Fog (PCJ)
Designed for all P-type trays, this PET/PP blend delivers reliable sealing at 110–145°C with a 1–3 second dwell time. It also includes anti-fog properties to maintain product visibility on shelf.
Peelable Seal Lidding Films
Peelable films are ideal when a user-friendly experience is essential. These seals hold securely during storage and transit but peel back cleanly when it’s time to open the pack – with no mess or tearing.
3. PET/PP 12/30mu Peelable Seal with Anti-Fog (PCJ)
This film gives you the best of both worlds – a strong seal and easy peel. It performs across a range of P-type trays at 95–145°C, with a dwell time of 1–3 seconds.
Universal Lidding Films
For packers working with a variety of materials, a universal film offers the flexibility to seal to multiple tray types – making it ideal for mixed production lines or evolving product ranges.
4. Universal 101 AF PET23 35mu – Clear with PCR (30%)
This film is designed to seal to most monolayer tray materials. It acts as a peelable seal at shorter dwell times but forms a stronger weld seal as dwell time increases.
5. Universal 101 AF PET50 – 50/12mu Pre-Cut Lids with Pinseal Pattern
This pre-cut option is ideal for specific diameters and tray types, using a clear pinseal pattern for improved grip and seal consistency.
Important Considerations
At SystemPAK, we understand that every production line is different. Sealing temperatures and dwell times can vary depending on:
That’s why we always recommend carrying out your own in-house trials before full-scale production. Our technical team is on hand to offer advice and product samples to support your testing process.
Need Help Choosing the Right Film?
Whether you’re looking for a high-performance weld seal for tamper-proof packaging or a peelable option for consumer convenience, we’ve got a solution that fits. Our films are tested for quality, consistency, and shelf-life performance – helping you deliver the best possible product to market.
Want more information on flat pouch packaging? Feel free to contact us.