Recycled film, paper mailers, paper zippers: 3 recent examples

Three recent materials changes stand out in this week’s trade coverage: a collation shrink film with 22% post-consumer recycled (PCR) content, a heat-seal coating for right-sized paper mailers, and reclosable zippers adapted to paper pouches.

Most of the performance claims below come from the companies that sell the resin, coating or closure. Treat them as supplier statements until a brand or independent test confirms them. Figures are as reported on 4 November 2026.

The three examples at a glance

Example	What changed	Reported result	Main caveat
Nivea collation shrink film (India)	PCR polyethylene added to the film that groups lotion bottles and tubs	22% PCR against a 20% target; tensile and shrink properties reported as equal or better	Performance data come from ExxonMobil; PCR comes from mixed flexible waste
Henkel Aquence HS 2819 RE coating	Water-based heat-seal coating on paper roll stock for right-sized mailers	Recyclability confirmed by accredited institutes (Henkel); runs on flexo and gravure presses	No brand pack, weight saving or test protocol named
Fresh-Lock closures	25% PCR zippers, 30% PCR sliders, and press-to-close zippers for paper pouches	Paper pouch with 95% paper content in recyclability testing	Paper zipper is in testing and development, not on shelf

Nivea’s shrink film: 22% recycled content without losing film performance

What changed. Packaging Europe reports that Nivea teamed up with ExxonMobil Signature Polymers, Green Worms and Vardhaman Polypacks to put PCR polyethylene into the collation shrink film used for its skincare products. Packaging Strategies adds that the film packs items such as body lotion bottles and tubs at Nivea’s Indian manufacturing facility, and that the team set a target of at least 20% PCR.

The film was made on a 1/1/1 layer-ratio line and reached a 22% PCR dosage, according to the same report. Green Worms supplied the PCR granules, Vardhaman Polypacks converted the film, and the base is ExxonMobil’s Exceed Stiff+ m 0238 performance polyethylene.

Why it works. PlasticsToday notes that the granules were produced from Category II flexible waste such as milk pouches and trash liners. Packaging Europe relays ExxonMobil’s statement that the film has a better machine-direction and transverse-direction shrinkage balance than the reference film, improved tensile properties against the incumbent virgin film, and good puncture performance. Packaging Strategies adds that the film kept its integrity after the shrink tunnel during validation.

The useful detail is the team structure: the resin supplier, the PCR producer and the converter worked on the same formulation.

Trade-offs. The PCR comes from flexible waste of varying origin, and ExxonMobil’s own wording stresses that performance held despite that variability. That makes batch-to-batch consistency the item to ask a supplier about. The reports give no cost, carbon or film-thickness data, so the net environmental gain cannot be calculated from them.

Lesson. Secondary packaging is a practical place to start with PCR, because the film does not touch the product and a 20% to 22% dosage can be validated on the existing shrink tunnel. Set the target in the brief, as this team did, and test shrink balance and puncture, not only the PCR percentage.

Henkel’s heat-seal coating: right-sized paper mailers from roll stock

What changed. In a press release dated 3 November 2026, Henkel describes Aquence HS 2819 RE, a coating that lets paper be heat-sealed into mailers cut to each shipment, instead of choosing from predefined envelope and box sizes. Asia Food Journal reproduces the release: the packaging manufacturer applies the coating to the substrate, and the e-commerce company then makes envelopes from rolls in an automated process, cutting the paper to the product size and sealing it with heat.

Why it works. The coating is water-based. Sustainable Packaging News relays Henkel’s statements that it contains no mineral oils or CMR substances, that it meets FDA and EU food-contact requirements under specified conditions, and that accredited testing institutes have confirmed its recyclability. Henkel also says it runs stably on flexographic and rotogravure presses at high speed.

packaging journal reports that the intent is to fit the bag to the product shape and so reduce empty space and material use. That connects to the PPWR limit of 50% empty-space ratio for grouped, transport and e-commerce packaging, which applies from 1 January 2030 or a set period after the Commission’s act, whichever is later.

Trade-offs. The coating is a component, not a finished pack. None of the coverage names a brand using it, gives a coating weight, or states how much paper or void fill a right-sized mailer saves against a box. The recyclability confirmation is also unspecified: the reports do not name the test protocol or the paper stream it applies to.

Lesson. If you move from boxes to paper mailers, ask the coating supplier for the test method, the target recycling stream and the maximum coating weight, and then check them against the rules where you ship. Right-sizing only pays off if the automated line exists, so the format decision and the equipment decision belong together.

Fresh-Lock closures: PCR zippers and a zipper for paper pouches

What changed. At PACK EXPO International (Chicago, 18 to 21 October 2026), Fresh-Lock showed closures with at least 25% PCR content, according to its September 2026 press release. PKN Packaging News (22 October 2026) puts the figures at 25% PCR for zippers and 30% for sliders, all cleared for food contact. Packaging Digest adds that the 25% is mechanically recycled PCR and that the company also showed press-to-close zippers for paper pouches, offered to brands for testing and development.

Why it works. PKN quotes Fresh-Lock staff explaining the design constraint: a zipper on a paper pouch has to be low-mass so the pack still passes kerbside paper recycling, yet strong enough to reclose without tearing. A pouch made with Mondi’s FunctionalBarrier Paper, 95% paper, is in recyclability testing at Western Michigan University, according to PKN.

WhatPackaging, reporting from Interpack, gives a different design rule for a separate pouch: 85% paper and less than 15% sealant or closure material, designed to be curbside recyclable in the US. The two figures describe different constructions, but both show how small the closure’s mass budget is.

Trade-offs. The paper-compatible zipper is not yet in a commercial pack, and the recyclability result for the Mondi pouch was still pending in the PKN report. The recyclability targets in the coverage are US curbside paper streams; EU recyclability grades under the PPWR will depend on the Commission’s design-for-recycling rules, which are still being finalised. A higher-PCR closure also shifts the recycled-content question to the pouch film around it.

Lesson. Closures, sealants and barrier layers decide whether a mono-material or paper-dominant pack stays inside its recyclability limits. Budget their mass at the start of the design, not after the paper and film choice is fixed.

How the recycled content figures compare with the PPWR minimums

The chart sets the reported PCR levels beside the 2030 and 2040 minimums for “other plastic packaging” in Regulation (EU) 2025/40: 35% from 1 January 2030 (subject to the later-date rule) and 65% from 1 January 2040.

Reported PCR content against PPWR minimums for other plastic packaging. PCR content or minimum: Nivea shrink film (reported) 22, Fresh-Lock zipper (stated) 25, Fresh-Lock slider (stated) 30, PPWR minimum from 2030 35, PPWR minimum from 2040 65 (%) — Reported PCR content against PPWR minimums for other plastic packaging
Source: Packaging Europe and Packaging Strategies (Nivea film); PKN Packaging News (Fresh-Lock); Regulation (EU) 2025/40 (minimums)

Our calculation: 35% minimum minus the 22% in Nivea’s film = 13 percentage points still to close against the 2030 figure. The comparison is indicative only, because the Nivea film is sold in India.

What to do now

Ask film suppliers for PCR trials at 20% to 25% on secondary packaging, and request shrink balance, tensile and puncture data against your current film.
Ask PCR suppliers which waste stream the granules come from and how they control variability between batches.
If you are testing paper mailers, request the coating weight, the recyclability test method and the recycling stream it was tested for, and map them to the markets you ship to.
Add closure, sealant and barrier mass to your paper and mono-material design briefs from the first sketch.
Check the official PPWR text, or take legal advice, before relying on any supplier’s compliance or recyclability statement for the EU.

Sources

Header image: illustration, AI-generated.