August 20, 2026

Why the Same Pantone Prints Differently on Different Films

A colour that is perfect on one run and off-tone on the next is one of the most frustrating problems in packaging, especially when your brand identity relies on precise colour. It is easy to blame the printer. Often the real cause is the substrate.

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Quick answer: The same Pantone can read differently on different films because ink sits differently on different surfaces: a metallised, reflective film comes out brighter and more saturated, a non-metallised film softer. If you run the same artwork across different substrates or print sites and expect one universal target to hold, it will drift. The fix is substrate-specific colour targets, one per material, so colour is predictable no matter which film or supplier you use.

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READ MORE: need to get your design on a dieline? Read our guide here.

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Why the same Pantone shifts between films

Colour on packaging is not just the ink; it is how that ink interacts with the surface beneath it. A metallised film is reflective, so colour printed on it looks brighter and more saturated. A non-metallised film is not, so the same ink reads softer and slightly muted.

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That is the physics of how ink sits on a reflective versus a non-reflective surface, not a defect. But it means a single Pantone reference cannot hold across different substrates. Change the film, or move between print facilities running different equipment, and the colour moves with it.

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How to isolate the cause

Before you can fix colour drift, you have to prove what is causing it. The way to do that is a controlled run: print the same artwork with the same inks and the same setup, changing only the base film, one metallised, one non-metallised. If the colour differs with everything else held constant, the cause is the material, not the process. That single test removes the guesswork and the cycle of reprints that usually comes with it. These are all sampling options Grounded can guide you through.

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The fix: substrate-specific colour targets

Once you know colour is substrate-dependent, you stop chasing one universal target. Instead you set a Pantone specification per substrate: one target for metallised structures, one for non-metallised. Every order references the right target for the material it is printed on, so colour is predictable and repeatable even when you switch films or print sites. The drift, and the rework cycle behind it, goes away.

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How this played out in practice

A skincare brand with a following across Australia, Hong Kong, and the UK relies on precise Pantone matching for its spout pouches, and its colour kept shifting between runs and facilities. A controlled sample run confirmed the substrate was the cause, and substrate-specific targets resolved it. The brand has since moved through multiple runs across two suppliers without returning bags for colour, and with the colour framework locked it was able to raise recycled content without losing visual quality.

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How to get it right

Treat the substrate as part of the colour spec: Pantone numbers alone are not enough across metallised and non-metallised films.
Set a target per substrate, and document it: Reference it on every purchase order so it survives supplier and SKU changes.
Lock colour before you change material: With targets in place you can raise recycled content or switch structures without gambling on brand appearance.

What this means for you and your brand

If your packaging is colour-critical, treat the substrate as part of the colour specification. A target per substrate removes the guesswork and the rework that eat time and margin at every transition between films, sites, or SKUs.

It also frees a sustainability decision: once colour is locked to the material, you can raise recycled content or change structures without risking the brand look.

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If colour consistency is blocking a move to higher PCR, talk to our team or explore our packaging resources.

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Frequently asked questions

Why does the same Pantone look different on different packaging films?

Because ink sits differently on different surfaces. A metallised, reflective film reads brighter and more saturated; a non-metallised film reads softer. The colour target has to be set per substrate.

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Is colour drift between runs a printing fault?

Not always. If the artwork, inks, and setup are constant and colour still moves when the film changes, the cause is the substrate, not the press.

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How do you get consistent colour across two suppliers?

Set substrate-specific Pantone targets and reference them on every order. Consistency comes from matching the target to the material, not from a single universal number.

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