Recycling, Product Innovation

Sealing Lid Innovations by Greiner Packaging: Sustainable, Leak-Proof, Flexible

07/10/2025 | 4 min read

Peter Dobosz

A consistent mono-material solution that significantly improves recyclability
The Click On impresses with its universal fit, making it a highly flexible lid for various cup shapes
The Click In features an audible locking mechanism and provides maximum leak protection

Greiner Packaging is launching two innovative packaging solutions, the Click On and Click In sealing lids, designed specifically to meet the needs of environmentally conscious manufacturers and modern consumers. These products expand the existing portfolio with functional advancements that meet the highest standards of usability and sustainability.

Greater sustainability through fewer components

Sealing lids are based on a well-thought-out two-component principle: cup and lid. This allows for the deliberate omission of a third component, such as an aluminum foil. The key advantage is that both parts can be made from the same material, such as PP, PET, or r-PET. This mono-material approach increases recyclability and reduces CO₂ emissions across the entire value chain.

In addition, sealing lids are reclosable, making them ideal for larger-volume products that aren’t consumed all at once. The lid protects the product from external influences and helps extend shelf life. Greiner Packaging’s sealing lids are compatible with standard sealing technologies such as thermal and ultrasonic sealing and offer a wide range of customization options.

Click On Sealing Lid: One Lid to Fit Them All

The new Click On sealing lid from Greiner Packaging offers a flexible, user-friendly solution specifically designed to be used without any modification to the cup. Its straightforward application makes it a particularly versatile option for a wide range of packaging requirements. It ensures a secure hold, even if the cup tips over or is turned upside down. Moreover, the lid comes in two distinctive tab styles, offering versatile options.

Designed to be part of a sustainable mono-material system, the sealing lid, together with the cup, utilizes a single material to enhance recyclability. Compared to the conventional combination of snap-on lid and aluminum foil, this solution contributes to CO₂ reduction. As a result, the Click On combines reliable functionality with sustainable packaging design - a solution that fits in every way.

Click In Sealing Lid: One Click, Sealed Quick

The new Click In sealing lid from Greiner Packaging was developed specifically for applications where secure closure and reliable product protection are paramount. After the initial opening, the lid can be easily pressed back onto the cup. It audibly and tangibly locks into the rim of the cup. This clear feedback not only ensures user-friendly handling but, above all, a high level of leak protection, even during movement or transport. The innovative locking function requires only a small modification to the cup rim - a simple yet effective measure to ensure a secure fit.

The Click In sealing lid is suitable for thermoformed and injection-molded cups and, thanks to its smart design, offers a reliable and practical everyday solution that integrates seamlessly with the cup. Naturally, this version also follows the mono-material principle - for easy reintegration into the recycling loop.

Learn more about Greiner's Sealing Lids

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Reimagining a Proven Concept

Greiner Packaging’s Standard sealing lid has been successfully in use for over 25 years - proven millions of times, efficiently produced, and still a popular classic today. It offers a reliable initial seal and is available in numerous sizes and shapes, from round to square, with various decoration options. With the new Click In and Click On variants, Greiner Packaging once again demonstrates that true innovation often begins where existing solutions are improved, optimized, and developed further to meet new demands.