Four recent material redesigns and what designers can learn

Most of the material changes worth studying right now sit in one area: replacing a hard-to-recycle layer with something that fits an existing recycling stream, without losing the function that layer provided. Four recent examples show how that plays out for paper closures, barrier films, grease-resistant paper and moulded fibre.

A caution applies to all four. The results below are reported by the companies involved or by trade press relaying their statements, and two of the four are prototypes or trials rather than products on shelves. None has independent verification in the coverage I found.

Why these changes matter under the PPWR

The EU’s Regulation (EU) 2025/40 has applied generally since 12 August 2026. Its recyclability grades (A, B or C) become mandatory from 1 January 2030, or a set period after the Commission’s implementing act, whichever is later, and only grades A and B will be accepted from 2038. The same 2030 date brings a 50% maximum empty-space ratio for grouped, transport and e-commerce packaging.

In the US there is no federal packaging EPR law, but several states, including California, Oregon, Colorado, Maine, Minnesota, Maryland and Washington, have passed their own. Fees under such schemes vary by material, which gives designers a financial reason to simplify structures as well as a regulatory one.

RRD: a paper closure on a flat paper mailer

What changed. RRD launched its VersaPac FastTrack Paper Mailer in August 2026. According to the company’s Business Wire release, a paper-based peel-and-seal tear strip replaces the silicone-coated poly strip found on competing mailers, and the format is flat and non-padded rather than a paper-and-bubble construction. RRD says its R&D team developed it in-house.

Why it works. A single-fibre mailer avoids the mixed-material problem that makes paper-and-bubble formats harder to recycle and, in RRD’s words as reported by Packaging Gateway, more likely to attract higher EPR charges. The flat design cuts void space, which RRD says helps shippers avoid carrier dimensional-weight surcharges and anti-waste packaging penalties. The release also describes a paper texture with enough grip for robotic vacuum handling and an instant-bond adhesive meant to keep automated lines moving.

Packaging Digest, speaking to RRD at Pack Expo 2026, reports on a collaboration with oral care brand Quip. The partners redesigned the e-commerce pack for a cordless electric toothbrush around the mailer and swapped a plastic tray for a moulded-pulp tray. RRD reports the following results.

Quip e-commerce redesign: reductions reported by RRD

Trade-offs. The mailer has no padding, so it suits products that tolerate that. The coverage gives no drop-test data, no fibre-recycling test results for the paper strip and its adhesive, and no certification. RRD also says the product is in line with California’s SB 54; that is a company claim, and a brand relying on it should check the state’s rules and its producer responsibility organisation’s guidance.

Lesson. Closures, tapes and strips are often the single non-fibre component in an otherwise fibre pack. Fixing the small part can change the whole pack’s classification, and a flat format can pay back in freight as well as in end-of-life.

Innovia Films: metallised polypropylene in place of aluminium foil

What changed. Innovia Films has introduced Propafilm CHBM, an 18 μm metallised BOPP film. Trade press including Packaging Europe and Label and Narrow Web reports that it is designed to replace aluminium foil in polypropylene-based laminates, so that the whole pouch can be a recyclable mono-material PP structure. The film has reverse-side treatment for lamination or surface printing.

Why it works. Foil is a barrier layer that cannot be separated from the plastics around it. If a metallised PP film delivers the oxygen and moisture protection needed, the laminate can stay within one polymer family. Innovia’s Alasdair McEwen is quoted as saying the film delivers the barrier performance traditionally associated with foil in a PP-based structure, so customers can simplify designs without compromising protection.

Trade-offs. The coverage describes the barrier as “ultra-high” but I found no published OTR or WVTR values, no shelf-life data and no recyclability certification. Those figures will decide whether a given product, such as a coffee, snack or powder, can make the swap. Recyclability also depends on the rest of the structure (print, sealant, adhesive) and on whether a PP stream exists where the pack is sold.

Packaging World’s report from INX International’s Innovation Day at Pack Expo adds the buyer’s view. Mars Snacking is moving flexible packs from multi-material laminates to mono-material films, and the report says chemistry and coatings now do the work that physical layers once did. Mars, which files its own EPR reports as the obligated producer, now asks suppliers to detail every ink, coating and adhesive in its specifications.

The same report carries two cost warnings. Mondi says mono-material swaps cost more at first, and Plug and Play says buyers won’t pay a sustainability premium for a less functional pack. It also cites EPR fee differences of 4 cents to 78 cents per pound depending on material classification (USD, as stated by the source).

Lesson. Treat a mono-material move as a data and supplier project as well as a film choice. The redesign only counts if barrier performance, line speed and fee classification all hold up together, and the report notes that such redesigns typically take longer than expected.

UPM, Ingredion and Paramelt: starch as a grease barrier on paper

What changed. UPM Specialty Materials, Ingredion and Paramelt have built a prototype paper food-packaging structure. UPM’s release dated 20 October 2026 and Packaging Insights describe UPM Solide Lucent 78 gsm barrier base paper (and UPM Asendo 65 gsm in the wider trials), Ingredion’s plant-based starch barrier coating and Paramelt’s bio-based heat-seal and barrier coatings. Packaging Insights reports that the structure passed Part 1 of Western Michigan University’s recyclability test, and that it was on show at UPM’s Pack Expo booth.

Why it works. Grease resistance and heat-sealability are the two properties that usually push food paper towards plastic films or laminates. A starch layer in place of a synthetic grease barrier, combined with a bio-based sealing coating, aims to keep the structure in the paper stream. New Food Magazine adds that the work addresses exactly those two challenges for fibre-based food packaging.

Trade-offs. This is a prototype. New Food Magazine notes that the companies have not disclosed detailed grease-resistance results or a commercialisation timeline, and the coverage mentions only Part 1 of the recyclability test. It also describes grease resistance rather than oxygen or moisture protection, so it will not suit every food. A converter would need to test seal strength, runnability and shelf life on its own product.

Lesson. The value here is the combination. Barrier and sealant developed together, on a defined base paper, give a converter a tested starting point instead of two separate coatings that may interact badly. For designers, the practical step is to ask coating suppliers for combined-structure recyclability data, not data on each layer alone.

Z1RO and Kiefel: non-wood fibre on existing moulding lines

What changed. France-based Z1RO completed industrial trials on 15 September 2026 at Kiefel’s Customer Innovation Center in Freilassing, Germany, according to Sustainable Packaging News and Packaging Europe. Materials incorporating bamboo, hemp and fallen leaves were formed into coffee lids and trays on automated wet moulded fibre equipment (Kiefel’s NATUREFORMER KFT Lab).

Why it works. Non-wood fibres are often shown as lab samples. Running them on equipment that moulded fibre producers already own removes a major barrier to scale. Kiefel’s Michael Seeboeck is quoted as saying new fibres only become packaging once they run on industrial equipment, and that the finished parts showed clear visual and tactile differences between the three feedstocks. Z1RO positions trays for cosmetics, consumer electronics and premium gifting, and coffee lids for foodservice.

A related example from September: Packaging Scotland reports that ESKA, part of RDM Group, launched Eska Leaf with Releaf. It pairs ESKA’s recycled solid board with a leaf-paper lamination from Releaf, using leaves collected in European cities.

Trade-offs. The trials show that the materials can be formed. The coverage does not report recyclability, food-contact compliance, volumes, cost or lifecycle data. A moulded lid that needs a barrier for hot drinks would also fall under the PPWR’s PFAS limits for food-contact packaging, which have applied since 12 August 2026 (25 ppb for any single PFAS, 250 ppb for the sum of PFAS, 50 ppm total fluorine).

Lesson. A new raw material is easier to adopt when it arrives in a format that existing tooling can handle. Designers can request trial parts in a real geometry and ask for the end-of-life and food-contact evidence before committing.

The four side by side

Example	Material change	Status in coverage	Evidence reported	Open question
RRD VersaPac FastTrack (US)	Paper peel-and-seal strip replaces silicone-coated poly strip; flat paper mailer	Launched August 2026	Company-reported cost, material and assembly gains in one Quip case	Fibre-recycling test data; protection without padding
Innovia Propafilm CHBM	18 μm metallised BOPP film replaces aluminium foil in PP laminates	Launched October 2026	Qualitative barrier claims	OTR and WVTR values; recyclability certification
UPM, Ingredion, Paramelt	Starch grease barrier and bio-based heat-seal coating on barrier paper	Prototype	Passed Part 1 of Western Michigan University test	Grease-resistance results; timeline
Z1RO and Kiefel	Bamboo, hemp and leaf fibres moulded into lids and trays	Industrial trial, 15 September 2026	Parts formed on automated equipment	Recyclability, food contact, cost, volume

What to do now

Audit closures, tapes, strips, liners and windows on your fibre packs. List every non-fibre component and its mass share before you chase bigger changes.
Ask film and coating suppliers for OTR and WVTR values, shelf-life data and recyclability evidence for the full structure, not the single layer. Treat “designed to support” wording as a claim to verify.
Build a component data sheet covering every ink, coating and adhesive, as Mars now requires of its suppliers. You will need it for US EPR reporting and for PPWR technical documentation.
For food-contact fibre or barrier-coated paper, request PFAS test data against the PPWR limits, and check state-level EPR material classifications for the markets you sell into.
Check any claim of compliance with SB 54, or with PPWR recyclability grades, against the official text and your producer responsibility organisation’s guidance, and take legal advice where you need certainty.
Run trials on your own line with your own product before costing a switch. Mondi’s warning that mono-material swaps cost more at first is a reason to budget for it.