At a glance

A Western Sydney bakery producing wrapped baked goods for major Australian retailers was losing an estimated 14% of production time to machine stoppages, generating film waste roughly 11% above industry benchmarks, and fielding retailer complaints about packaging presentation. The root cause was traced back to inconsistent printing and converting from a small, limited-capability supplier. After transitioning to UPAC Foodcare, the customer reported measurable improvements in line efficiency, packaging quality, and supply reliability within 6 weeks.

The client

The customer is a growing bakery producing wrapped sliced loaves, rolls, and sweet baked goods for major retailers across New South Wales and Victoria. Their Western Sydney facility runs three high-speed horizontal flow wrap lines, with packaging quality directly affecting both retailer acceptance and downstream shelf life. Volumes had grown to the point where every minute of unplanned downtime translated into measurable lost output.

For confidentiality reasons, the client is not named in this study.

The challenge

Operations and quality teams were dealing with a steady drip of small failures that, when totalled, painted a much bigger picture. Rolls arrived with visible lamination defects. Print quality varied between batches. Packaging machines flagged repeat-registration errors several times per shift. Operators were spending more time intervening than running production.

The incumbent supplier was a small converter with limited printing technology and minimal quality-control infrastructure. On paper, their pricing looked attractive. In practice, the hidden costs were eroding the margin on every pack produced.

Problems identified

Poor lamination quality

Supplied rolls showed bubbling, patchy adhesion, and inconsistent coverage across the web. On the shelf, this translated to packs that looked cheap and damaged. Internally, it raised the risk of delamination during transport and reduced confidence in the product the film was protecting. Retailers began flagging presentation issues during routine audits.

Patchy and missing print

Outdated print equipment at the original supplier produced uneven ink density, blurred graphics, and entire missing sections within repeat patterns. Beyond the obvious branding damage, this created two serious downstream problems. Barcodes scanned unreliably at retail checkouts, and missing print sections caused photo-eye sensors on the flow wrap machines to lose registration, leading to mid-pack seals and rejected product.

Limited print capability

The supplier could only offer basic single-colour print. As the client’s brand evolved and retailers pushed for more premium shelf presentation, the packaging fell further behind. Competitors with full-process printing were visibly outperforming the client’s products on the shelf, even where product quality was equal or better.

Inadequate barrier performance

The film structures used by the original supplier were not specified for the client’s bakery application. Oxygen and moisture transmission rates were higher than required, contributing to shorter usable shelf life and an increased rate of in-store spoilage returns. For a bakery producer, where freshness is the core product promise, this directly affects retailer relationships and write-off costs.

Supplier instability

Mid-engagement, the original converter ceased trading. The client was left with a partial inventory of non-compliant film, no clear transition plan, and an urgent need to source replacement stock without disrupting customer commitments. This is the operational risk that rarely gets priced into a per-metre comparison.

How poor film quality affected the production line

Visual defects were only half the story. The more expensive problems were happening inside the packaging machines.

Repeat-registration errors. Print scuffing and ink blobs along the edge of the web were being read as false repeat marks by the line sensors. The machine would seal at the wrong position, cutting through the product instead of between packs. Each false read generated rejected packs and required operator intervention to clear.

Sealing failures from missing print. Where print was missing entirely, the sensor lost the registration signal and defaulted to random sealing. Reject rates spiked during these runs, particularly at higher line speeds where the machine had less time to recover.

Inconsistent web tension. Poor converting control meant tension varied across the roll. Operators saw wrinkling, tracking drift, and an unusually high proportion of unusable roll ends. Several rolls per delivery were being scrapped before they finished running.

Traceability gaps. Many rolls arrived without batch labels or technical specifications, making it nearly impossible to trace defects back to a production run or to maintain quality records for retailer audits.

The business impact

When the client’s operations team finally totalled the cost, the cheaper film was not cheaper at all. Estimated impacts included approximately 14% of scheduled production time lost to unplanned stoppages; film waste running roughly 11% above industry benchmarks for the equipment class; increased labour costs from operator intervention and reject handling; retailer complaints affecting presentation scores and renewal conversations; and two near-miss incidents in which production fell behind shipping commitments.

The pattern is one we see regularly: a small per-metre saving on packaging film is wiped out — and then some — by even modest increases in waste, downtime, and quality complaints.

The solution

UPAC Foodcare worked with the client’s operations and quality teams to specify a replacement film structure suited to the actual application, not a generic off-the-shelf option. The transition covered four areas.

Print and converting — Higher-resolution print, tight registration tolerances, and consistent ink density across the web. Repeat marks are placed and printed to match the sensor configuration of the client’s specific flow wrap machines.

Material structure — Barrier properties matched to the bakery’s required shelf life and ambient storage conditions, rather than over- or underspecified.

Roll quality — Controlled web tension, consistent core alignment, and clean roll ends to minimise scrap and improve machine feeding.

Traceability — Every roll is labelled with batch identifiers, production date, structure specification, and storage requirements, supporting both internal QA and retailer compliance audits.

Results

After transitioning, the client reported the following outcomes within 6 weeks of full changeover. Unplanned machine stoppages reduced by an estimated 68%. Film waste was reduced by approximately 43%, with cleaner roll ends and fewer false sensor reads. Shelf life performance improved, with wrapped baked goods holding spec for an additional 3 days in retailer ambient conditions. Zero retailer complaints related to packaging presentation in the first 6 months post-changeover. Full roll traceability restored, supporting audit readiness.

Numbers will vary by application and line configuration, but the direction of travel is consistent across the food manufacturers we work with.

Why packaging quality is an operational issue, not a procurement one

The lesson from this engagement is not that cheaper suppliers should be avoided on principle. It is that flow wrap film is a production input as much as it is a packaging input. Specifying it on price alone, without reference to print registration, web tension, barrier performance, and supplier stability, transfers risk directly onto the production floor.

Manufacturers running high-speed lines benefit from treating packaging film selection the way they treat any other critical machine input: with proper specification, supplier qualification, and ongoing performance review.

Frequently asked questions

What causes poor sealing performance on a flow wrap machine?

Sealing failures are most often caused by registration errors. When repeat marks are inconsistent, missing, or scuffed, the line’s photo-eye sensor either loses tracking or reads false marks, causing the machine to seal at the wrong position. Print quality, web tension, and consistent repeat geometry are all factors. Resolving sealing issues usually starts with auditing the film before the machine.

How does poor film converting affect packaging line efficiency?

Inconsistent web tension, poor roll formation, and variable core alignment all cause feeding problems on flow wrap equipment. Symptoms include wrinkling, tracking drift, increased reject rates, and a higher proportion of unusable roll ends. These issues compound at higher line speeds, where there is less time for the machine to recover from a tracking error.

Why is print consistency important in flexible packaging?

Print serves two functions on a flow wrap line. It carries brand and regulatory information, including barcodes, which must scan reliably at retail. It also acts as the registration reference that the machine uses to position seals. Inconsistent print, therefore, creates both a presentation problem and a mechanical one.

Can poor packaging film reduce shelf life?

Yes. Film structures with inadequate oxygen or moisture barrier properties allow faster product deterioration, especially for moisture-sensitive products such as bakery goods. Specifying barrier performance to match the actual product and supply chain is more important than selecting a generic film grade.

How should a bakery evaluate a packaging film supplier?

Beyond price, the key factors are print capability, converting tolerance, barrier specification flexibility, traceability and labelling standards, and operational scale. Supplier stability matters too — a converter that cannot scale or sustain operations introduces supply risk that does not appear on the quote.

Talk to UPAC Foodcare

If your packaging film is creating waste, downtime, or shelf presentation issues, the underlying cause is usually fixable. UPAC Foodcare supplies printed flow wrap films specified for real Australian food manufacturing environments, with the print, converting, and traceability standards required by modern bakeries and food producers.

Contact our team to discuss your application.