Cold-foiled paper or board can be recyclable, but the answer applies to the complete package rather than the foil in isolation. The PET carrier normally remains at the converting plant; recyclability still depends on the substrate, adhesive, inks, coatings, foil coverage, collection system and mill acceptance.
That is a less convenient answer than a simple yes, and it is the one that survives scrutiny from a brand owner or a regulator. This page explains what actually reaches the recycling stream, how finished-pack recyclability is assessed, and which documents are worth asking for before a claim goes on a carton.
Is cold foil recyclable?
Recyclability is a property of a design in a system, not of a decoration process. A cold-foiled folding carton with a fibre-based substrate, a modest foil area and conventional inks is generally a far less difficult case for a paper mill than a metallised laminate, but that does not make every cold-foiled pack acceptable everywhere.
The practical route to an answer is to evaluate the finished construction against a recognised design guideline, then confirm that the local collection and mill infrastructure accepts that construction. Where a claim will be printed on pack, that evaluation should be documented rather than assumed.
What happens to the PET carrier and transferred layer?
Cold foil is supplied as a transfer film. The PET carrier holds a release layer, a very thin metallised layer, colour or tie coatings, and it is the carrier that is rewound on the press and handled as a separate waste or recycling stream at the converting plant. It is not part of the pack the consumer receives.
What transfers is the thin decorative layer, anchored by cured UV adhesive in the printed image area. Its mass is small relative to the board, but "small" is not the same as "irrelevant": how it behaves in pulping and de-inking depends on total coverage, on the adhesive and on the other coatings present, which is why coverage and construction are always part of the assessment.
How is finished-pack recyclability evaluated?
Two things are usually needed. First, a design assessment against a recognised guideline — for fibre-based packaging in Europe, the 4evergreen alliance's Circularity by Design guideline is the reference most converters and brand owners work from. Second, laboratory testing of the actual construction.
De-inking and recyclability laboratory methods are published by INGEDE; the INGEDE methods library and the ISO 21993 deinkability test describe how a defined construction is assessed under defined conditions. This is an important qualification: a test result belongs to the sample that was tested. It does not guarantee acceptance of a different construction, a higher foil coverage, or the same pack in a different local recycling stream. Our cold foil recyclability proof checklist sets out how to assemble that evidence for a specific job.
What FSC, PEFC and ISO 14001 do and do not prove
These marks are often quoted as if they answered the recyclability question. They do not.
FSC and PEFC are forestry and chain-of-custody schemes. Using FSC-certified board does not by itself entitle the finished carton to an FSC claim: the converter needs valid chain-of-custody certification and has to follow the scheme's claim and trademark requirements, as described in the FSC chain of custody documentation. ISO 14001 is a standard for an organisation's environmental management system — see the ISO 14001 standard page — and says nothing about whether a particular package can be recycled.
In short: sourcing and management-system certificates support responsible supply, while recyclability has to be evidenced separately through design assessment and testing.
Cold foil versus metallized laminate and hot foil
| Construction | Typical fibre-stream behaviour | Main variable |
|---|---|---|
| Cold foil on paper or board | Usually assessed as fibre-based packaging; result depends on coverage, adhesive and coatings | Coverage and construction |
| Hot foil on paper or board | Also assessed as fibre-based packaging; decorated area is generally thicker | Coverage and adhesive/size layer |
| Metallised laminate or laminated film | Frequently problematic in fibre streams because a continuous non-fibre layer must separate | Whether the layer separates in pulping |
The table describes tendencies, not verdicts. A heavily decorated cold-foil pack can perform worse than a lightly decorated laminate-free alternative, so compare actual constructions rather than categories.
What evidence should packaging buyers request?
Ask for documents that describe the pack you are buying:
- 1Substrate specification, including coatings and any barrier layers
- 2Confirmation that the foil is a transfer foil with the carrier retained at the converter
- 3Adhesive and varnish specifications, including any migration or food-contact statements relevant to your application
- 4Total foil coverage on the finished design
- 5A design assessment against a recognised guideline such as 4evergreen Circularity by Design
- 6Laboratory test reports (for example INGEDE or ISO 21993 based) identifying the exact construction tested
- 7Confirmation of chain-of-custody certification if an FSC or PEFC claim will appear on pack
- 8Any statement from the receiving mill or recycling system in your target markets
Our own environmental position and the limits of what we can evidence are set out on the sustainability page.
Environmental claims that should be avoided
Claims that cannot be tied to a document are the ones that create risk. Avoid describing cold foil as biodegradable or compostable; avoid "plastic-free", since the adhesive is a cured polymer; and avoid blanket statements that cold foil is recyclable everywhere or that a certificate on the board makes the finished pack recyclable.
A defensible claim is narrower and refers to the assessed construction and the systems where it has been evaluated. If a comparative carbon or energy statement is needed, it should come from a study of the actual constructions being compared, not from a general assertion about the process.
Frequently asked questions
Does the PET carrier end up in the recycling bin? +
No. In cold foil transfer the carrier is rewound at the converting plant and handled there. What reaches the consumer is the thin transferred layer bonded to the substrate.
Does high foil coverage change the answer? +
It can. Coverage is one of the variables assessed in design guidelines and laboratory testing, so a design with extensive metallic area should be evaluated rather than assumed to behave like a lightly decorated one.
Does an INGEDE or ISO 21993 test result apply to all our packs? +
No. Those methods evaluate a defined construction under defined conditions. A result supports the construction that was tested and does not guarantee acceptance of other designs or of the same design in every local recycling stream.
Does FSC-certified board make our carton FSC-labelled? +
Not automatically. Chain-of-custody certification and the scheme's claim and trademark rules apply to the converter and to the finished product, as described in the FSC chain of custody documentation.
What can we state on pack? +
State what the evidence supports: reference the assessed construction and the systems where it was evaluated, and avoid absolute or universal recyclability language.
Sources