SIG and Mengniu Dairy have highlighted the potential for used beverage cartons to return to the material cycle through a sustainability event held at Mengniu’s Horinger factory in Hohhot, China.

Organized to coincide with the fourth China National Ecology Day, the event focused on beverage carton collection, recycling and the development of useful products from recovered packaging materials.

Examples displayed at the event included stationery, household products and office supplies manufactured using materials recovered from discarded beverage cartons.

The initiative reflects ongoing cooperation between SIG, Mengniu and recycling partners to connect packaging design with collection and downstream material recovery.

From Used Beverage Cartons to New Products

Beverage cartons are designed primarily to protect products such as milk and other liquid foods during distribution and storage.

Their end-of-life management, however, depends on whether used cartons can be effectively collected, sorted and processed through appropriate recycling infrastructure.

At the Horinger event, SIG and Mengniu demonstrated how recovered cartons can become feedstock for new products rather than simply being treated as packaging waste.

According to SIG, these applications have been enabled through local collection networks and recycling technologies developed together with upstream and downstream partners.

The examples provide a physical demonstration of carton circularity: consumers can see how packaging discarded after use can potentially re-enter the economy in another form.

Recycling Starts Before the Carton Is Discarded

SIG’s approach also extends upstream into packaging development.

The company says it is working to improve design for recyclability, including optimization of packaging material structures, while simultaneously supporting collection, sorting and reprocessing systems.

This distinction is important because designing a technically recyclable package does not by itself ensure that its materials will actually be recovered.

Collection infrastructure, sorting capabilities, recycling technology and downstream demand for recovered materials all influence what happens to packaging after consumers dispose of it.

SIG is therefore positioning circularity across the packaging lifecycle rather than focusing exclusively on the package itself.

The company said it plans to deepen its strategic partnership with Mengniu while pursuing further collaboration in areas including low-carbon packaging, recycling systems and recycled-material utilization.

SIG Expands Carton Recycling Programs Across Asia

The Mengniu initiative forms part of broader recycling activity by SIG across Asian markets.

Earlier in 2026, SIG expanded its Recycle for Good program into Vietnam with an education-focused carton collection initiative in Bac Ninh.

The program targets preschools and primary schools, encouraging the collection of empty milk cartons while introducing recycling practices to students.

Such programs address one of the practical requirements for beverage-carton recycling: establishing reliable streams of collected post-consumer packaging.

SIG has also been working on packaging-material changes intended to improve recyclability.

In South Korea, Seoul Dairy Cooperative introduced products using SIG’s aluminum-layer-free full-barrier aseptic carton packaging. According to SIG, the packaging is recognized as recyclable under South Korea’s recyclability grading system.

Removing or modifying individual material layers can be significant for aseptic cartons because these packages traditionally need to combine several functions, including product protection, structural strength and barrier performance.

Dairy Packaging Becomes a Circularity Testing Ground

Dairy products represent an important area for packaging development because milk and other beverages require reliable protection while being sold in very large volumes.

That creates a dual challenge for packaging producers: maintaining the necessary product-protection performance while reducing material and improving end-of-life options.

SIG’s work with Mengniu illustrates how the industry is increasingly approaching that challenge from both directions.

Packaging structures can be redesigned with recyclability in mind, but collection and recycling infrastructure must develop alongside those changes if recovered materials are to return to productive use.

For China, where dairy consumption and packaged beverage volumes are substantial, expanding effective carton collection could therefore be as important as improving the packaging material itself.

The products displayed in Hohhot offer a straightforward illustration of that principle: carton circularity does not end with making packaging recyclable—it depends on whether discarded cartons are collected, processed and given another useful life.

Last Updated on 20/08/2026 by Jota Machinery