Commercial & Packaging Printing

A print job can look right as a flat sheet and put important artwork across a carton fold. For packaging printing, choose the material and finished pack structure before approving the print process and artwork.

This section maps offset lithography, flexography, gravure and digital printing for buyers, designers and production staff. It covers process families, prepress, color and finishing checks; individual press settings and equipment specifications belong in job-specific technical documents.

Commercial print and packaging: what changes?

Commercial work includes printed pieces such as leaflets and direct-mail inserts. Packaging printing adds artwork to a pack or label whose final shape must also be considered. The same process family can serve both kinds of work; a carton is not a printing process, and a digital file does not mean the job will run on a digital press.

In packaging prepress, graphics must be checked against the structural drawing, including cuts, folds and glue areas. Esko’s packaging prepress guide describes these checks alongside file inspection, color preparation and proof approval. A useful starting record is:

Record before selecting a route	What to write down	What it helps settle
Finished item	Leaflet, label, carton, mailer or other pack	Which structure the artwork must fit
Printing surface	Named paper, board or film, including its coating	Which material the printer must evaluate
Artwork versions	Quantity for each design; fixed or changing content	Whether version changes affect the production plan
Finishing	Cutting, creasing, folding, coating or other agreed operations	What must be checked after printing
Approval reference	File revision, structural drawing and intended proof	What the approval actually covers

This is an editorial planning record, not a technical acceptance standard. If the pack itself is undecided, begin with the paper packaging and mailer families. For a separate label, the label attachment overview helps distinguish the printed face from the way it reaches the container.

Four printing process families

Compare the route and its job requirements before comparing machine names. The US EPA’s printing process overview describes the physical distinctions between conventional processes. Its older market-share figures are not used here.

Process	Basic distinction	Packaging connection	Question to resolve
Offset lithography	Ink transfers from a plate through a rubber blanket to the stock	Sheetfed offset is one route used in folding-carton production	Can the selected stock and finishing sequence be demonstrated?
Flexography, or flexo	Raised image areas on a flexible plate transfer ink	Used for packaging including labels, flexible materials and corrugated work	Which plate, ink and material combination is proposed?
Gravure	Recessed cells in an image cylinder hold ink for transfer	Used in packaging production as well as publication work	What cylinder preparation and artwork revision work is required?
Digital printing	Image data drives output without a conventional image plate for each design	Can support packaging with multiple designs or variable content	Which versions and data changes can the proposed workflow handle?

HEIDELBERG’s packaging production overview lists offset and inline flexo alongside carton finishing systems. HP’s corrugated packaging page gives a digital-print example involving several designs without separate plate fees. These establish available routes, not a universal winner or a promised result for another job.

There is no fixed run-length crossover on this page. Compare the same stock, design quantities, finishing and approval requirements before deciding that one process costs less. A digital route still requires file preparation and production checks.

For a packaging job with flexo and offset proposals, use the flexographic vs offset printing comparison to identify the ink-transfer paths and record the same substrate, artwork, finishing scope and accepted finished quantity before comparing totals.

Material, ink and color belong in the same decision

The substrate is the surface being printed. Naming only “paper” or “film” leaves the production brief incomplete: record the actual grade or construction and any relevant coating. Esko identifies the substrate and print process as inputs to packaging prepress and color preparation.

Keep these terms separate when discussing a proof:

• Process colors and spot colors: specify whether artwork uses a color separation set or a separately named ink color; do not let a screen preview stand in for the agreed print reference.
• Registration: alignment between printed separations. Trapping is the controlled overlap prepared to accommodate registration variation; Esko treats it as process-dependent prepress work.
• Drying or curing: the way the chosen ink system becomes ready for subsequent handling. Record the ink system and the printer’s requirements rather than assuming every press uses the same route.

For labels, use the paper versus film face-stock guide to separate face material, adhesive and overcoat. A face-stock choice alone does not select the complete label construction.

From artwork to a finished pack

Preflight checks incoming artwork against production requirements. A dieline is the structural drawing used to locate cuts and folds. Bleed extends artwork beyond a cut edge; the required allowance must come from the job specification rather than a generic number.

The Ghent Workgroup’s packaging work addresses packaging PDF specifications and Processing Steps, which identify production operations such as cutting and folding. This is a reason to distinguish structural information from printable graphics when handing over files; a visible line in a design is not enough to define its production role.

Use the following handover checks as a working list. They combine the cited prepress stages into an editorial checklist; they are not evidence that a particular pack has passed inspection.

Handover	Check before moving on	Keep as the reference
Design to prepress	Correct file and dieline revisions; artwork clear of agreed fold and glue areas	Approved artwork and structural drawing
Prepress to proof	Separations, fonts, images, bleed and process-specific trapping checked	Preflight result and prepared file
Proof to production	Identify whether approval covers content, color, structure or a defined combination	Proof type, approval scope and revision
Print to finishing	Confirm the agreed relationship between graphics, cut edges and folds	Finished sample checked against the approved structure

Esko describes digital soft proofing and hard-copy proofing. Name the proof type and what it is intended to demonstrate. Do not treat a content approval as approval of the folded pack or assume a screen image establishes the final printed color.

Where to continue

Choose the next guide by the unresolved part of the job:

• Paper packaging and mailers explains pack families before the print route is chosen.
• Paper and film label faces separates material selection from adhesive and overcoat decisions.
• Envelope manufacturing puts printed envelope stock in the context of cutting, folding and gluing.

Keep the material name, artwork revision, version quantities, finishing sequence and approval reference together as the job changes. Leave unconfirmed production limits blank until the proposed process and material are evaluated.

Method and sources

Updated October 2026. This is an independent editorial overview based on the primary documents linked beside the relevant claims, accessed on October 15, 2026. Manufacturer pages establish process and workflow examples; their performance claims are not generalized to other equipment. The EPA reference is used for conventional process definitions, not current market statistics or regulatory guidance. No equipment testing, supplier ranking or numerical production limit is claimed.