Packaging sustainability used to look primarily like a materials problem.

Use less plastic.

Add recycled content.

Move toward mono-material structures.

Replace plastic with paper where appropriate.

Lightweight bottles.

Design packaging for recycling.

The packaging industry is discovering that none of those changes matter very much if the new structure cannot survive the machine that has to make, fill, seal, code and inspect it.

That is shifting part of the sustainability challenge from the packaging-material supplier to the equipment manufacturer.

Multivac, Sidel, Syntegon, UFlex and Markem-Imaje are among the machinery companies now emphasizing equipment capable of processing thinner materials, recyclable structures, recycled polymers and increasingly complex packaging portfolios while consuming less energy, water and material.

Their technologies differ substantially.

But they point toward the same industrial constraint:

A packaging material only becomes scalable when the production line can run it reliably enough to compete with the material it replaces.

That makes machinability one of the least visible—but increasingly important—variables in packaging’s transition toward circularity.

PPWR effectively puts the packaging line inside the sustainability calculation

European packaging regulation makes this connection unusually clear.

The EU Packaging and Packaging Waste Regulation requires packaging to be minimized in weight and volume while retaining the functions needed to protect and distribute the product.

But the regulation does not treat material reduction as an abstract design exercise.

Its packaging-minimization methodology explicitly recognizes manufacturing and filling requirements including:

machine feasibility,

thickness tolerances,

impact resistance,

mechanical strength,

line speed,

conveying stability,

heat resistance,

effective closure,

and production efficiency.

It also recognizes that additional material can sometimes be justified where necessary to enable recycled content, recyclability or reuse.

That is important.

Europe is effectively acknowledging something packaging engineers already know:

The minimum viable package is not necessarily the thinnest package a laboratory can produce. It is the lightest package that can still be manufactured, filled and distributed reliably.

This makes packaging machinery part of compliance even though PPWR is not a machinery regulation.

Sustainable materials often change the machine-material relationship

Conventional packaging structures have benefited from decades of optimization.

A multilayer flexible laminate may combine different polymers because each layer does one job particularly well.

One provides stiffness.

Another provides sealability.

Another provides oxygen barrier.

Another protects printing.

Another adds puncture resistance.

Moving toward a simpler mono-material PE or PP structure can improve recycling compatibility, but it can also change:

stiffness,

friction,

heat response,

stretch,

curl,

seal initiation temperature,

and mechanical behaviour during converting.

Paper presents another set of differences from plastic films.

Recycled PET can vary differently from virgin PET.

Lightweighted containers have narrower margins for material distribution.

The machine therefore cannot remain an invisible constant while the package changes around it.

UFlex, which manufactures both packaging materials and equipment, describes this directly in its own strategy. The company says its machines are being designed for recyclable mono-material PE and PP structures while servo-based systems are replacing some conventional mechanical systems to improve control and energy efficiency.

That dual position—materials plus machinery—is revealing.

The sustainable structure and the production equipment increasingly have to be developed together.

A recyclable film that doubles scrap is not a finished solution

This is where sustainability claims can become misleading.

Imagine a conventional laminate runs at:

300 packs per minute,

with stable seals,

low start-up waste,

and predictable changeovers.

A new recyclable structure theoretically offers a better end-of-life pathway.

But on the same machine it requires:

a slower speed,

a narrower sealing window,

more frequent operator adjustments,

and twice as much start-up scrap.

The material may still eventually prove preferable.

But the sustainability and economic case has changed substantially.

More scrap means more resin or paper consumed before saleable packages leave the plant.

Slower output increases machine time per package.

Unstable seals can create rejects.

Poor pack integrity can create product waste, which can be considerably more consequential than the package itself.

This is why “machine compatible” is becoming nearly as important as “recyclable.”

The material has to work at industrial speed.

Multivac is engineering around thinner and recyclable films

Multivac’s new RX Ultimate thermoforming platform provides a good example of the direction machinery development is taking.

The company says the machine uses new matrix heating systems intended to provide more controlled forming conditions, enabling recyclable films to be processed consistently while allowing film thickness to be minimized.

Multivac also emphasizes modularity and connectivity so the platform can be adapted as packaging requirements change.

The significant point is not whether one thermoformer is more sustainable than another.

It is what the machine is being asked to do.

Historically, packaging equipment primarily had to:

produce the required pack,

at the required speed,

at the required quality.

Now the equipment is increasingly expected to allow the packaging structure itself to evolve.

That means processing a thinner gauge next year.

A mono-material structure after that.

Perhaps a paper-based format for another SKU.

And doing so without requiring an entirely new production line each time the regulatory or material strategy changes.

Flexibility is becoming a hedge against packaging regulation

That may be one of the biggest changes in machinery procurement.

A packaging machine can operate for many years.

Packaging rules can change considerably during that lifetime.

A company buying equipment in 2026 may still be operating it well into the 2030s.

During that period, European manufacturers will face progressively stronger requirements involving:

recyclability,

recycled content,

packaging minimization,

reuse in specified applications,

labelling,

and waste prevention.

Material portfolios will change in response.

That creates a potential stranded-asset problem.

A machine optimized extremely tightly around one legacy laminate can become commercially problematic if that laminate later needs to be redesigned.

Modularity, wider processing windows, recipe control, retrofit capability and rapid format changes therefore acquire another value.

They are not merely convenience features.

They provide optionality.

Packaging producers do not need to know exactly which structure will dominate in 2032 if their equipment can accommodate several plausible structures.

The machine may determine how lightweight a bottle can become

Sidel’s EvoBLOW Laser illustrates the same relationship in rigid packaging.

PET bottle production normally reheats a preform before stretch blow moulding.

Traditional systems generally use halogen heating.

Sidel’s EvoBLOW Laser instead uses laser-based preform heating with up to 36 heating lines, allowing more localized control over material distribution.

Sidel says this precision enables an average 10% reduction in packaging material without sacrificing bottle performance, while reducing preform waste by around 50% compared with its comparable halogen solutions. The company also says the system can process up to 100% rPET.

Those are supplier-reported performance claims and should be treated as such.

But an industrial installation provides useful evidence that the technology has moved beyond demonstration.

Refresco has been operating EvoBLOW Laser equipment in Bruchsal, Germany, where Sidel says the technology enabled lightweighting of a 1.5-litre PET bottle while retaining required bottle performance.

The significance is broader than laser heating.

Bottle lightweighting eventually runs into a process-control problem.

Removing material makes precise distribution more important because there is less excess polymer available to compensate for weak areas.

The machine therefore becomes part of the lightweighting strategy.

Less material requires more control, not less engineering

This principle applies across packaging formats.

A thick material provides tolerance.

A thinner one often requires greater precision.

Reduce a bottle wall and material distribution becomes more critical.

Reduce film thickness and tension control becomes more important.

Simplify a laminate and the thermal processing window may change.

Reduce corrugated board weight and compression performance becomes less forgiving.

Move toward paper and forming behaviour changes.

Sustainability can therefore create a counterintuitive result:

As packaging contains less material, the machinery may need to become more sophisticated.

The environmental simplification of the package can require greater engineering complexity in the production system.

That is one reason machinery suppliers increasingly talk about sensors, closed-loop control, servo motion and digital intelligence alongside material reduction.

Recycled material also creates variability machinery has to absorb

Recycled content presents a related challenge.

Virgin polymer can generally be manufactured within relatively controlled specifications.

Post-consumer recycled material begins with waste.

Even after sorting and reprocessing, properties can vary depending on:

feedstock,

contamination,

degradation history,

color,

molecular weight,

and previous processing.

That does not make recycled resin unsuitable.

It means production equipment may need more capability to manage variability.

Sidel says one advantage of its laser heating system is that it is less sensitive to variations associated with recycled PET and can adjust heating more precisely.

Again, the manufacturer-specific performance claims need independent application validation.

But the underlying engineering problem is clear.

Increasing recycled content is not simply a procurement decision.

It can require changes to the process window.

Sustainable machinery also has a direct footprint

Material compatibility is only one side of the issue.

Packaging equipment consumes:

electricity,

compressed air,

water,

steam,

heating energy,

cooling,

and cleaning resources.

Some processes are particularly intensive.

Pharmaceutical sterilization is a useful example because sustainability cannot compromise product safety.

Syntegon’s hot-water-shower sterilization equipment heats process water to sterilize filled pharmaceutical containers.

The company says circulation water can account for around 40% of the process’s energy balance.

Through redesigned water distribution and product trays, Syntegon says its optimized system can deliver, depending on application:

up to 20% lower process-water use,

up to 10% lower energy costs and carbon emissions,

and up to 7% shorter heating and cooling stages.

Its sustainability reporting also says an optional energy-recovery configuration can reduce energy consumption by a further 35% to 45%, depending on the relevant installation.

These are vendor-reported figures rather than universal plant benchmarks.

But they illustrate an important distinction.

Sometimes sustainable machinery enables a different package.

Sometimes it reduces the resources consumed by the process itself.

The strongest projects can do both.

Product protection remains the non-negotiable constraint

The pharmaceutical example also demonstrates why packaging sustainability cannot simply mean minimizing energy, water or material regardless of consequence.

Sterilization exists for a reason.

So do barriers.

So does excess mechanical strength in some packages.

Reducing environmental impact cannot compromise:

food safety,

sterility,

shelf life,

seal integrity,

or protection from damage.

PPWR itself recognizes product protection, hygiene and manufacturing functionality when assessing minimum packaging requirements.

That creates a useful hierarchy.

First, protect the product.

Then determine how little packaging and process resource can deliver that function reliably.

If material reduction causes additional spoilage, rejects or recalls, it can defeat the original purpose.

One of the cheapest sustainability technologies may simply be fewer mistakes

Not every packaging sustainability improvement requires a new material.

Some waste originates because the right package was used incorrectly.

Wrong date code.

Wrong language.

Wrong label.

Wrong SKU.

Incorrect artwork.

Incorrect variable data.

A mechanically perfect package can become waste because its information is wrong.

Markem-Imaje argues that connected coding and line-management systems can reduce those errors by moving information from centralized databases directly to packaging equipment rather than depending on repeated manual entry.

Its CoLOS software is designed to manage production orders and messages across printers and PLCs, automate data entry and reduce errors during start-ups and changeovers.

The sustainability logic is straightforward.

Incorrect packaging can require:

rework,

new labels,

replacement cartons,

additional machine time,

or scrapping the product entirely.

Avoiding that mistake prevents waste before recycling becomes relevant.

More SKUs make this problem worse

Packaging lines increasingly handle shorter production campaigns.

Different markets require different languages.

Promotions change.

Customers request more variants.

Traceability information expands.

Regulations add additional labelling requirements.

That means more changeovers.

And every changeover creates another opportunity for error.

This is where packaging automation begins to overlap with sustainability.

The objective is not simply higher speed.

It is first-time-right production.

A line running 400 packs per minute is not efficient if several thousand packs have to be destroyed because the wrong information was applied.

Markem-Imaje has documented one customer case in which centralized label and code management was introduced across more than 20,000 product references, with automated validation intended to eliminate incorrect labelling.

The company has also reported a separate FMCG implementation in which its software integration produced a 25% waste reduction, although that figure is a supplier-disclosed customer result rather than an independently verified industry benchmark.

The broader point does not depend on the exact percentage.

Operational accuracy is a waste-prevention technology.

Sustainability changes the definition of machine productivity

Packaging equipment has traditionally been judged by familiar metrics:

packs per minute,

uptime,

OEE,

changeover time,

maintenance cost,

and reject rate.

Those measures are still fundamental.

But additional metrics are beginning to matter:

grams of material per package,

kilowatt-hours per thousand packs,

water per production cycle,

start-up scrap,

amount of recycled content the line can tolerate,

and whether recyclable structures can run at commercial speed.

That means sustainability increasingly becomes measurable in ordinary production terms.

This is good for machinery investment because it removes some of the separation between environmental and financial projects.

A machine using less film also buys less film.

A bottle requiring less PET buys less resin.

Lower reject rates reduce material cost.

Lower energy consumption reduces utility cost.

Shorter changeovers increase productive time.

Sustainability becomes easier to justify when the same investment changes the manufacturing P&L.

The difficult case is when sustainability reduces productivity

Not every transition produces this convenient alignment.

Some recyclable structures cost more.

Some run slower.

Some require additional coating.

Some create more difficult seals.

Some fibre formats require more complex forming.

A producer may therefore face a real trade-off.

Keep the high-performance legacy structure.

Or accept higher cost and operational difficulty to improve recyclability.

Machinery engineering becomes especially important in that situation because better equipment can narrow the performance penalty.

If a new heater expands the process window, the recyclable film becomes easier to run.

If servo control stabilizes tension, thinner film becomes practical.

If better forming technology allows a lighter tray, less material is required.

If digital settings shorten changeover, format diversity becomes less expensive.

The machinery does not create the sustainability benefit by itself.

It makes the new material economically survivable.

Paper packaging faces the same machinery constraint

The move toward fibre-based packaging is another good example.

It is easy to describe a plastic-to-paper conversion as a material change.

On the line, it may involve much more.

Paper and board have different:

friction,

stiffness,

folding behaviour,

moisture sensitivity,

barrier requirements,

forming limits,

and sealing characteristics.

Multivac, for example, markets paperboard systems that can run cardboard trays, paper-based backing materials and formable paper structures on thermoforming and tray-sealing equipment.

These structures can use functional layers where necessary for sealing and barrier performance.

That last point is important.

“Paper packaging” does not necessarily mean bare paper.

The machine has to work with the complete functional structure, including coatings and seal layers.

And the complete structure, not simply its fibre content, determines its recyclability.

Machinery can either lock in complexity or make simplification possible

Every packaging line embodies assumptions.

About thickness.

Material stiffness.

Seal temperature.

Container geometry.

Print location.

Line speed.

Package dimensions.

Those assumptions become physical constraints.

If the equipment can process only one narrow family of structures, it can make material simplification harder.

If it has a broader processing window, packaging developers have more freedom.

That makes machinery architecture strategically important.

A highly flexible machine can allow sustainability teams to test:

lower gauges,

new coatings,

mono-material films,

higher recycled content,

or new fibre formats

without rebuilding the production line for every experiment.

The machine therefore becomes an enabler of packaging R&D.

Retrofitability may become as important as new machine efficiency

The sustainable transition cannot rely only on buying new machinery.

Packaging plants contain enormous installed bases of equipment with years of useful life remaining.

Replacing functioning lines solely because a new material behaves differently would carry its own financial and resource cost.

This is why retrofitability matters.

Can controls be upgraded?

Can a sealing system be replaced?

Can sensors be added?

Can servo drives improve tension management?

Can the line process another format after a tooling change?

Can software connect previously isolated devices?

Multivac specifically identifies modularity and enhancement options as part of its current machinery architecture.

That is likely to become increasingly valuable as the industry moves through several packaging-material generations rather than one final transition.

There probably will not be one “packaging material of the future”

This is another reason machinery flexibility matters.

Paper will grow in some applications.

Mono-PE and mono-PP will grow in others.

PET will remain important.

Higher recycled content will alter existing polymers.

Reuse will reshape selected packaging systems.

Glass and metal will retain applications where their properties make sense.

Compostable materials may occupy particular niches.

No single substrate solves every combination of:

barrier,

weight,

cost,

recycling infrastructure,

product protection,

consumer experience,

and manufacturing speed.

Equipment manufacturers therefore face a more difficult future than simply developing the “paper machine” or “mono-material machine.”

They need equipment capable of dealing with a more fragmented materials landscape.

Labour shortages strengthen the case for automation at the same time

There is another force pushing machinery in the same direction.

Labour.

Packaging operations increasingly want fewer manual adjustments, faster changeovers and more self-correcting equipment.

That overlaps neatly with the needs created by sustainable materials.

A material with a narrower process window requires tighter control.

Tighter control benefits from:

sensors,

automation,

stored recipes,

vision systems,

servo motion,

and closed-loop adjustment.

So the industry is experiencing two trends simultaneously.

Sustainable packaging asks the machine to handle more difficult and more varied materials.

Labour scarcity asks the machine to do that with less operator intervention.

That is why today’s equipment development increasingly combines sustainability with digitalization rather than treating them as separate product categories.

“Smart packaging machinery” will matter only if it changes physical waste

The industry should still be cautious with digital language.

Artificial intelligence.

Smart manufacturing.

Connected factory.

Digital twin.

Operational intelligence.

These terms can easily become marketing labels.

The relevant question is much simpler:

What physical inefficiency disappears?

Does the software reduce start-up scrap?

Does it prevent an incorrect label?

Does predictive maintenance avoid an unexpected stoppage?

Does automated adjustment allow the line to run thinner material?

Does better heating reduce PET?

Does inspection prevent bad packages from reaching the next production stage?

If the answer cannot be connected to material, energy, labour, quality or uptime, the sustainability value is much harder to establish.

Digitalization should be judged by the physical system it improves.

Machinery suppliers are consequently moving upstream in packaging design

This also changes the relationship between CPG companies, packaging converters and equipment makers.

Historically, the sequence could be relatively linear.

Brand selects package.

Converter manufactures package.

Machine supplier runs package.

That model becomes difficult when material and machine performance are tightly connected.

Now the process increasingly has to be iterative.

Material supplier proposes structure.

Equipment supplier tests it.

Converter modifies seal layer.

Brand reduces thickness.

Machine settings change.

Package undergoes shelf-life and transport testing.

Recycling compatibility is checked.

Another iteration begins.

UFlex’s combination of packaging-film and machinery operations is one example of why this integrated approach can be useful. The company itself argues that developing both allows material and equipment design to evolve together.

Other machinery groups increasingly provide packaging-development and material-testing services for the same reason.

They are no longer selling only equipment.

They are helping determine what the equipment can economically package.

This could change how brands evaluate sustainable-packaging claims

When a new packaging material is proposed, procurement and sustainability teams commonly ask:

Is it recyclable?

How much recycled content does it contain?

How much does it cost?

What is its carbon footprint?

Those remain important questions.

Another set should now sit beside them:

What speed has it demonstrated on our line?

What is the start-up scrap rate?

How stable is the seal window?

What modifications are necessary?

How often will operators need to intervene?

Does package failure change after distribution testing?

How long does changeover take?

Can the same machine run the incumbent structure if supply is interrupted?

These questions determine whether a promising material becomes millions of commercial packages or remains a trial roll in an R&D department.

The packaging line is becoming the proving ground for circularity

The next generation of sustainable packaging will therefore be decided partly in places that attract much less attention than material laboratories.

At the heater.

At the forming station.

At the sealing jaw.

At the coding head.

At the vision system.

At the changeover.

At the reject bin.

Those are the points where ambitious packaging targets encounter industrial reality.

A recyclable structure that cannot achieve required throughput will struggle to scale.

A lightweighted bottle that fails top-load testing will regain material.

A paper format that compromises shelf life will lose to plastic.

A high-PCR resin that creates unstable production will be reduced.

Conversely, machinery capable of absorbing those changes can accelerate them.

The most sustainable machine may be the one that gives packaging designers more options

Direct energy efficiency will remain important.

So will water.

Compressed air.

Maintenance.

Equipment life.

But the environmental impact of machinery increasingly extends beyond what the machine itself consumes.

Its larger influence may come from what it allows the package to become.

Can it run 10% less PET?

Can it reliably form a recyclable film?

Can it process more recycled resin?

Can it eliminate avoidable coding scrap?

Can it switch between material systems without requiring a new line?

Those questions connect machine design directly with packaging circularity.

And they explain why packaging-equipment companies are moving into the centre of a sustainability discussion that was once dominated by resin, paper and recycling companies.

The industry is discovering that developing a recyclable package is only half the job.

The other half is manufacturing it:

at speed,

at quality,

at acceptable cost,

with minimal waste,

day after day.

That is where many sustainable packaging concepts will ultimately succeed or fail.

The next packaging-material transition will not be won by the material with the strongest sustainability claim. It will be won by the material-and-machine system that can deliver the required package repeatedly at industrial economics.

Last Updated on 16/09/2026 by Jota Machinery