flow wrap film

Flow wrap film runs around a product that is already moving, at speeds where there is very little margin for error. Cold seal or heat seal is the first decision and it changes everything after it.

Cold Seal or Heat Seal Changes the Whole Specification

Cold seal film carries an adhesive that bonds under pressure without heat, which lets a wrapper run very fast and protects heat sensitive product like chocolate coated bars from softening at the seal. It also has handling and storage implications, because the adhesive is exposed on the roll. Heat seal film bonds under temperature and pressure, runs on a wider range of equipment, tolerates storage better and generally costs less, but it applies heat to the product at the seal and runs slower. Choosing between them is not a preference. It follows from what your product tolerates, what your wrapper is set up for, and the speed you need to hold.

High Speed Leaves No Room for a Marginal Specification

Horizontal wrappers run fast, and a film that is marginally wrong produces waste at a rate that gets expensive quickly. Most of the failures are settled at specification rather than fixed on the line.

Where Flow Wrap Runs Into Trouble

Heat seal specified on a product that softens at the seal jaw.
Cut-off length mismatched to the repeat, so print drifts off centre.
Eye mark the wrapper cannot read reliably at production speed.
Static causing film to cling and mistrack on a fast line.
Cold seal film stored or handled in a way the adhesive does not tolerate.

Our Solutions

Seal type chosen from what the product actually tolerates at the jaw.
Repeat length matched to your wrapper's cut-off before plates are cut.
Eye mark position and colour agreed so the sensor reads it at speed.
Surface properties specified so the film tracks without static problems.
Handling and storage requirements documented and passed to your team.

Wrapper, Carton, Case and Display

Printed films and roll stock, folding cartons for multipacks, corrugated shipping cartons, counter displays and shelf-ready trays. A wrapped bar almost always sells inside a carton and off a display, and those come from different industries to the film.

Years of Expertise

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What Goes Into a Flow Wrap Specification

Machine, seal and print, in that order. The product decides barrier, but the wrapper decides almost everything else.

Seal Technology

Cold seal for heat sensitive product and maximum speed, heat seal for wider equipment compatibility and lower cost.

Roll Geometry

Web width, core diameter, roll diameter and unwind direction taken from your wrapper rather than a standard size.

Registration

Repeat length matched to cut-off, with eye mark position and colour set so the sensor reads reliably at full speed.

Barrier and Finish

Laminate structure from your shelf-life claim, with matte, gloss or metallized finish chosen for shelf and for slip.

Fin Seal, Lap Seal and Where the Print Ends Up

A horizontal wrapper closes the film around the product with a back seal that is either a fin, where two inner faces meet and stand up, or a lap, where the film overlaps and seals face to reverse. That choice affects film usage, the seal’s reliability and how much of the printed area is consumed by the seal itself, which in turn decides how much design actually reaches the customer. It also affects which structures will work, since a lap seal requires the outer surface to bond to the sealant. End seals then have to close cleanly across a product that may be uneven, crumbly or coated. We ask what wrapper you run, fin or lap, at what speed, with what product dimensions and tolerance, and whether the run is at your plant or a co-manufacturer’s facility. Those answers narrow the structure choice considerably before any plant is asked to price it.

Four Decisions Before the Quote

Flow wrap film specification is unusually machine driven, so most of these are questions about equipment rather than about product.

Product Heat Tolerance

The cold seal question

Chocolate coated, compound coated and soft baked product can deform or bloom from seal jaw heat. Where that risk is real, cold seal stops being a cost decision and becomes a requirement.

Target Speed

What the seal has to do

Speed decides how much dwell the seal gets and how forgiving the film can be. We specify against your sustained production rate rather than a best case figure.

Seal Configuration

Fin or lap

Fin and lap seals use film differently, consume different amounts of printed area and need different structures. Getting this on the specification prevents a quote that cannot run.

Product Dimensions

And how much they vary

Cut-off and film usage follow from product size, and real variation matters. A product with inconsistent dimensions needs tolerance built into the specification rather than discovered on the line.

Wrapper First, Film Second

We document the machine and the product’s heat tolerance before discussing structures, because those two constrain everything else.

Wrapper and Product Review

We capture machine type, seal configuration, web width, core, cut-off, eye mark needs, sustained speed, product dimensions and heat tolerance.

Specify and Quote

We settle cold or heat seal, structure, barrier and finish, then price through plants that run the seal technology well.

Trial and Supply

We recommend a trial where the structure is new to your wrapper, then manage supply with delivery and brokerage handled.

Cold seal or heat seal is not a preference. It is decided by what your product does when a hot jaw touches it.

The Film and the Carton From One Program

A wrapped bar needs film, a multipack carton, a shipper and usually a display. Those come from four industries, and we purchase across all of them from manufacturing partners.

Beyond the Wrapper

Multipack cartons, cases and counter displays sourced alongside the film, so the count and the footprint reconcile before tooling.

Seal Technology Matched

Not every plant runs cold seal well. We place the work with partners set up for the technology your product actually needs.

Machine Led Specification

We work from your wrapper and your sustained speed rather than a catalogue structure, which is where most flow wrap waste originates.

Trial Before Volume

Proving a new structure on a trial quantity is cheaper than discovering a registration or seal problem across a production run.

Bars, Biscuits and Anything Individually Wrapped

This is the format behind almost every individually wrapped item on a shelf. Protein and nutrition bars are the clearest case, and they are also where cold seal matters most because coated bars are heat sensitive and the category runs at high speed. It covers cookies and crackers in single portions and sleeves, confectionery bars and pieces, wrapped baked goods, ice cream novelties and cheese portions. The pattern that matters is that a wrapped item rarely sells alone. It sells in a multipack carton, ships in a case and merchandises off a counter display, so the film is one purchase out of four and the other three are paperboard and corrugated. That is the coordination problem, and it is the reason brands in this category end up managing several suppliers for a single SKU.

What Our Clients Are Saying

Reliability that teams can measure.

As a small but growing brand, we struggled to find a packaging supplier who would take us seriously. AR not only welcomed us — they partnered with us. Their work with other startups showed in the quality of our packaging, and Daron went above and beyond, including helping our co-manufacturer optimize their equipment so our pouches came out perfect. We couldn’t ask for a more supportive, solution-focused partner.

Brittany Compton

Founder, Wellness Monster

ARG is the packaging partner we always needed. They cut through confusion, move fast, and operate like part of our internal team. Their expertise has streamlined our product development, and their above-and-beyond support — like Daron personally delivering samples to our co-manufacturer — is unmatched. We trust them completely.

Eric Farrugia

Head of Operations, South 40 Snacks

Armour Rose Group believed in us when other suppliers didn’t. They treated us with the professionalism of a much larger brand and played a real role in helping us scale. Their team is collaborative, reliable, and always willing to solve problems together. Daron’s proactive support and genuine investment in our success stand out above anything we’ve experienced in packaging. Highly recommended.

Sr. Operations Manager,

Children's Snack Brand

From day one, the team has been a trusted partner. They provided clear guidance, cost-effective solutions under tight timelines, and the flexibility to scale with a startup. Communication is fast, pricing is transparent, and deliveries are consistently on time and high quality. Support is always there when needed, which makes a real difference. The entire experience makes you feel safe and in good hands— we absolutely recommend Armour Rose Group.

Himshikha,

Head of Supply Chain Operations;
Specialty Water Company

Flow Wrap Film Questions

Should we use cold seal or heat seal flow wrap film?

It follows from your product and your speed rather than from cost. Cold seal bonds under pressure without heat, so it protects chocolate coated, compound coated and soft baked product that would deform or bloom at a hot jaw, and it allows a wrapper to run faster. Heat seal costs less, runs on a wider range of equipment and stores more easily, but it applies heat at the seal and runs slower. If your product is heat sensitive or your line speed is high, cold seal is usually the answer. If neither applies, heat seal is the sensible default.

What causes print to drift off centre on our wrapper?

Nearly always a mismatch between the print repeat length and your wrapper’s cut-off, or an eye mark the sensor cannot read consistently at speed. When the repeat is slightly out, the error accumulates pack by pack, so the first packs look correct and the drift becomes obvious later in the roll. Eye mark placement and colour matter as much as the repeat, because a mark sitting over a busy graphic or too close in tone to its background gives the sensor trouble at production speed. Both are specification decisions rather than machine adjustments.

Do you manufacture flow wrap film?

No, we source it. Armour Rose purchases from manufacturing partners and sells to customers, and cold seal in particular is worth sourcing rather than assuming, because not every plant runs it equally well and the handling requirements differ from standard film. We match the specification to a plant that runs the technology properly, and because we are not defending our own press we can move the work if capacity or performance changes. We also source the carton, case and display that go around the wrapped product, which no film converter can.

Our product dimensions vary between batches. Does that matter?

Yes, and it is worth raising early rather than discovering through waste. Cut-off length and film usage are calculated from product dimensions, so real variation has to be built into the specification as a tolerance rather than treated as a fixed number. A product that runs a few millimetres over on some batches can produce end seals that catch product, which causes both waste and seal failures. We would rather specify against your actual range, including the outliers, than against a nominal size that only some of your production meets.

Are there sustainable options for flow wrap?

The realistic option is material containing a percentage of post-consumer recycled content, and feasibility depends on the seal technology and the speed you run. Cold seal structures in particular are more constrained, because the adhesive system and the substrate have to work together and there is less latitude. On the paperboard side of the same program, meaning multipack cartons, cases and displays, recycled content and FSC-certified board are both available and that is often where a meaningful and documentable claim sits. We will tell you what a partner can evidence.

Can you supply the multipack carton and case as well?

Yes, and for this format it is the main practical reason to work with us. A wrapped bar needs film, a multipack carton, a corrugated case and usually a counter display, which are four purchases from four industries. The recurring failure is that the film supplier and the corrugated supplier never speak, so the display or case does not match the count the wrapped units ship in. We purchase across flexible, paperboard and corrugated and sell to you as one program, so the count is agreed once and every component is built to it.

Get the Film and the Carton Specified Together

Send us your wrapper details, sustained speed, product dimensions and heat tolerance. We will settle the seal technology, specify the film and quote the carton and case. Request a review.

Flexible – Film & Pouches

Paperboard - Boxes & Sleeves

Label & Shrink Sleeve Solutions

In-Store Displays & Trays

Restaurant & Food Service Containers and Takeout Bags

Shipping Solutions

Co-Manufacturer Partnerships

Logistics & Fulfillment

Sourcing & Brokering

Custom Packaging Solutions

Candy and Confection

Nutritional Supplements

Dried Fruit and Nuts

Granola and Cereal

Jerky and Meat Snacks

Pet Food and Treats

Meal Kits and Ready Meals

Foodservice and QSR

Health and Beauty

Cannabis

flow wrap film

Cold Seal or Heat Seal Changes the Whole Specification

High Speed Leaves No Room for a Marginal Specification

Where Flow Wrap Runs Into Trouble

Our Solutions

Wrapper, Carton, Case and Display

What Goes Into a Flow Wrap Specification

Seal Technology

Roll Geometry

Registration

Barrier and Finish

Fin Seal, Lap Seal and Where the Print Ends Up

Four Decisions Before the Quote

Product Heat Tolerance

The cold seal question

Target Speed

What the seal has to do

Seal Configuration

Fin or lap

Product Dimensions

And how much they vary

Wrapper First, Film Second

Wrapper and Product Review

Specify and Quote

Trial and Supply

Cold seal or heat seal is not a preference. It is decided by what your product does when a hot jaw touches it.

The Film and the Carton From One Program

Beyond the Wrapper

Seal Technology Matched

Machine Led Specification

Trial Before Volume

Bars, Biscuits and Anything Individually Wrapped

What Our Clients Are Saying

Flow Wrap Film Questions

Get the Film and the Carton Specified Together