Avery Dennison examines the latest in liner technology

As the label and package printing industry continues to grapple with the limitations of paper, many trends have emerged in the release liner space. Not only has there been a shift to cinematic bushings, but streak-free production lines are gaining a lot of interest.According to Avery Dennison, several factors have stimulated the switch to film-based PET liners. For starters, the lack of paper played a role. Several converters have made the switch, with Thomas Dahpura of Hub Labs being an early adopter.

“I think we’ve made some good decisions in the past years,” says Dehborah, discussing the paper shortage. “I was one of the first people to use polyester liners. Since the market is having trouble getting a #40 paper liner, I don’t have that problem because we’ve already switched a lot of our operations and a lot of our customers to polyester liners.”

There has been a growing focus on popularization and legislation such as EPRs as well. “While paper and paper liners have been around for a long time, these agents are changing what is used most,” Avery Dennison notes. “Many are learning that PET liners can be an effective alternative to paper liners and are used in all sectors – HPC, beer, beverages, wine, foods, durables and more. We are seeing film-based release liners grow rapidly.”

The company adds that film liners are less prone to the nicks and tears that can lead to web breaks. They can run faster due to their inherent strength, which improves productivity. Additionally, the combination of these factors results in excellent logging, chopping, and productivity.

From a productivity standpoint, film-based liners offer advantages when it comes to convertibility, dispensing, and strength. For starters, chopping quality is critical. “The polyethylene terephthalate (PET) liners are accurate and reliable as the film’s strength and routing ensure tight registration and consistent molding,” says Avery Dennison. “PET liners also show less wrinkle and better peel-off distribution because PET liners are less reactive to extreme moisture ranges, and are moisture resistant as well.

More companies are considering the environmental impact of the products as well, which has led to a switch to PET liners. In addition to the sustainable benefits, the added bonus is fewer changes.

“Depending on the caliper to control versus choosing a PET caliper, this can result in more labels per roll—about 15-20% more labels per roll—which reduces transportation costs and less inventory space,” says Avery Denison. “Film liners provide the opportunity to be recycled after dispensing with a circular drive as well. PET liners can be used as components for new materials and disposed of from landfill waste streams.”

According to Avery Dennison, the emergence of rPET is a big trend. There are products on the market today ranging from 25-30% PCW and in some cases even more.

Avery Dennison has also forged partnerships to further promote cyclicity in the supply chain, particularly around liner technologies. Avery Dennison and Mitsubishi recently launched a new program to enable liner carousing. Through the agreement, Mitsubishi will offer a closed-loop process for PET liner recycling, which helps increase the recycled content in PET liners supplied to Avery Dennison and the industry.

“Avery Dennison will identify adapters and brands that use film liners, and work to collect these materials at Mitsubishi,” the company says. “The recycled content will be added to the manufactured film liner, moving towards roundness and helping to meet the growing demand for film liners with recycled content.”

At Labelexpo Americas, Avery Dennison unveiled a new line of streak-free fonts that attracted huge interest at the company’s booth. The company’s Direct Thermal Label (DT) platform is optimized to accommodate shifting information labels used in e-commerce, food delivery and pickup, quick service restaurants, weighing, transportation and logistics applications.

“By providing a DT Linerless solution for these growing, technology-enabled applications, we eliminate the liner waste associated with label printing while providing inverters with a DT labeling solution that reduces matrix waste and improves process efficiency and productivity,” explains Avery Dennison.

DT’s new liner-free platform uses emulsion adhesives to support semi-permanent and removable applications and ensures the stability of the adhesive and silicone coating. Plus, it’s 32% thinner than liner stickers, and features up to 50% more stickers per roll, the company notes.

“Customers and visitors to the booth were very excited to learn more about our new DT Linerless product, as well as their interest in participating in the liner recycling programme,” the company adds.

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