UNITED CAPS Introduces Innovative Tethered Closure for Carton Packaging
23 H-PAK seamlessly integrates with existing processes, an out-of-the-box tethered solution that will be on display at interpack

Wiltz, Luxembourg, 2 March 2023 – UNITED CAPS, an international manufacturer of caps and closures, today reported that it is launching a unique, highly effective and sustainable tethered closure for carton packaging, 23 H-PAK. This closure, which has patents pending, includes an innovative tamper-evident (TE) band that keeps all parts intact for easier recycling.

“We are pleased to be bringing to market one of the first tethered closures for carton packaging,” said CEO Benoit Henckes. “In addition to its ability to keep all parts intact for recycling, its super-strong hinge ensures the box-fresh experience consumers are looking for. It not only enhances the user experience but also helps to protect the environment, a critical R&D driver for UNITED CAPS.”

At the Cutting Edge
The 23 H-PAK tethered closure is designed to make an instant connection with established filling lines, ensuring seamless integration with existing processes and fast production-line implementation. With its superior engineering and attention to detail, 23 H-PAK comes with a clever first-time-use feature to create an optimal access point, enhancing the user experience. The cutting edge is specially designed to cut through the pre-laminated hole with minimal effort, providing a clean and smooth opening.

“One of the stand-out features of this new tethered closure,” Henckes added, “is its audible click when opening, a satisfying sound that lets consumers know their closure is in an open position – once opened, it is in the optimal position for use and the cap stays in position for the perfect pour”.

Doesn’t Cost the Earth
This innovative closure consists of three pieces – the spout, closure and cutter, while other solutions in the market typically consist of four pieces. Fewer pieces means easier recycling. In addition to leading-edge tethering features, the 23 H-PAK is a highly cost-effective solution for cartons. Its lightweight design reduces exposure to plastic taxes and helps to reduce running costs for your business.

UNITED CAPS will be showing the 23 H-PAK publicly at interpack, scheduled for 4 through 10 May in Düsseldorf. UNITED CAPS will be located in Hall 10, Stand D67 at the show. Visitors to the stand will see this new product in action and learn how it aligns with UNITED CAPS’ dedication to bringing more sustainable, innovative packaging to market.

For more information about products and services from UNITED CAPS, please visit For more specific information about the 23 H-PAK tethered closure for cartons, please visit

UNITED CAPS is a global industry reference for the design and production of high-performance plastic caps and closures. Extensive innovative capabilities and a broad portfolio of advanced standard and bespoke solutions make UNITED CAPS a preferred partner for the world’s leading companies. We support our customers’ value chain by safeguarding product integrity, assuring safety and consumer health, and ultimately protecting brand reputation. As a highly dynamic and flexible family-based group with an ambitious sustainability agenda, UNITED CAPS offer end-to-end solutions, including mold-making capability, to serve a wide range of applications and markets around the world. The company is headquartered in Luxembourg and has manufacturing facilities in Belgium, France, Germany, Hungary, Ireland, Luxembourg, Malaysia, Spain and the United Kingdom. Employing around 750 people, UNITED CAPS’s turnover amounts to 186 million Euros (as at end 2022) with a 11 billion closures produced.

Monika Dürr
+49 (0)6104 944895

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