July 21, 2026 · Packaging Guides
Gravure and flexographic printing can both produce branded flexible packaging, but they use different image carriers, press systems and setup workflows. The right choice is not determined by which process sounds more premium. It depends on the film or laminate, artwork, colour target, repeat length, order pattern, finishing operations and total programme volume. Buyers get a more useful recommendation when they provide those facts before asking for a printing rate.
Gravure vs flexo printing at a glance
| Factor | Flexographic printing | Gravure printing |
|---|---|---|
| Image carrier | Flexible relief plates | Engraved printing cylinders |
| Ink transfer | An anilox roll meters ink to the plate | Recessed cells on the cylinder carry ink to the web |
| Tooling decision | Plate set, mounting and print setup | Engraved cylinder set and print setup |
| Often evaluated for | Many film and polybag programmes, including work with changing designs | Longer, repeatable programmes or artwork requiring the economics and reproduction of gravure |
| Buyer must confirm | Substrate, colours, coverage, repeat, tolerances, approval method and order quantities | |
This comparison is directional, not a promise that one method will be cheaper or sharper for every job. Press configuration, plate or cylinder preparation, ink system, operator control, substrate and downstream conversion all influence the finished result.
How flexographic printing works
Flexo transfers ink from a metering roll to raised areas on a flexible plate and then to the moving web. It is widely associated with printed plastic bags, labels, paper and flexible packaging. For polyethylene film, surface condition and treatment need attention because ink must adhere to a low-energy substrate. Plate material, anilox selection, impression, drying and web tension also affect solids, fine type and registration.
Flexo may be commercially practical for many custom polybags, but buyers should not assume that every press can reproduce the same artwork or number of colours. Ask the proposed supplier to review the actual design, finished bag and production quantity. PBK’s printed plastic bags page outlines the related product information a buyer should provide.
How gravure printing works
Gravure uses microscopic recessed cells engraved into a metal cylinder. Ink fills those cells, excess ink is removed from the cylinder surface, and pressure transfers the image to the web. The engraved cylinder is specific to the design, colour separation and repeat. Cylinder preparation can be a substantial part of the setup decision, so artwork stability and expected repeat volume matter.
Gravure is frequently evaluated for detailed, repeatable graphics on flexible packaging and laminate webs. That does not make it the default answer for every branded bag. A short campaign, frequent design revisions or a simple one-colour mark may lead to different economics than a stable multi-SKU programme. Ask for tooling ownership, storage, amendment and replacement terms in writing.
Choose the process from the complete pack specification
Substrate and final construction
Identify every material layer and whether printing will be on the exposed surface or reverse printed within a laminate. A plain LDPE shopping bag, a coextruded courier bag and a PET/PE laminated pouch are different print projects. Film thickness, treatment, heat resistance, sealing window and lamination process can constrain ink and printing choices.
Artwork and colour expectations
Count spot and process colours correctly. Separate text, line art, solids, screens, photographs, white ink and special effects. Provide brand colour references and state how colour will be judged. A monitor preview is affected by screen calibration and cannot, by itself, define the acceptable result on transparent, white, metallised or coloured material.
Volume, repeat length and change frequency
Provide the quantity for the first order, expected annual quantity, number of designs and likely artwork life. Tooling cost should be assessed across the realistic programme rather than against one unit price. State the finished pack dimensions and machine repeat; seemingly small size changes may require different tooling or layout.
Conversion and filling requirements
Printing must align with seals, gussets, zippers, eye marks, tear notches and cut positions. For automated filling, confirm web width, unwind direction, core, maximum roll diameter, repeat tolerance and splice requirements. The converter and packer should agree on a dimensioned drawing before production.
Artwork and approval checklist
- Editable vector artwork, linked images and outlined or supplied fonts
- Finished dimensions, print repeat and bag or pouch orientation
- Colour separations and approved brand colour references
- Print side, surface or reverse-print instruction, and reading direction
- Barcode type, size, quiet zone and target substrate
- Regulatory copy controlled and approved by the buyer
- Location of seals, gussets, zipper, perforation, eye mark and cut
- Agreed proof type and method for approving colour and registration
A signed digital proof confirms layout and copy, but it may not represent ink appearance, transparency or final lamination exactly. Where these factors are critical, agree on the physical standard or production approval procedure. For more prepress detail, use the plastic bag printing guide.
Where printing sits in plastic bags manufacturing
Plastic bags manufacturing may include film extrusion or substrate sourcing, surface treatment, printing, curing or drying, lamination where required, slitting and bag conversion. Each stage can change dimensions or print position. The approved specification should therefore connect the graphic file to the material structure and finished pack—not treat artwork as an isolated purchase.
Buyers searching “packaging company Pakistan” should ask whether a potential vendor is quoting a printed monolayer polybag, printed roll stock or a laminated pouch. Likewise, a polybags or polythene supplier may be suitable for LDPE and HDPE bags but may use a separate partner for specialised gravure or lamination. Ask who owns process control, approvals and corrective action across the full job.
Compare quotations on the same basis
A meaningful comparison separates one-time tooling from recurring production and records substrate structure, thickness, colours, coverage, quantity, wastage policy, proofing, finishing, packing, tax and delivery terms. Do not compare only a per-kilogram or per-piece figure when the quoted structures or approval standards differ.
For related manufacturing context, see Tanvir Packages’ page on custom printed polybags. Then send the final dimensions, material, artwork, quantities and delivery location through PBK’s packaging RFQ form. The print method should be confirmed only after technical review of the job.
Frequently asked questions
Is gravure always better quality than flexo?
No. Both processes can deliver professional results. Finished quality depends on artwork, tooling, press capability, ink control, substrate and agreed tolerances. The correct comparison uses an actual project specification and approval standard.
Which printing method is cheaper for plastic bags?
There is no universal answer. Tooling, colours, coverage, run length, substrate, repeat orders and artwork changes affect total cost. Compare the complete programme cost on the same technical specification.
Can photographic artwork be flexo printed?
It may be possible on a suitable press with properly prepared separations, plates and process control. The supplier should review image resolution, screening, colours, substrate and the buyer’s expected reproduction before committing.
Why does surface treatment matter on polyethylene film?
Polyethylene has a naturally low-energy surface, so controlled treatment is commonly used to support ink wetting and adhesion. The required condition depends on the ink, film, storage time and printing process.
What should be approved before printing begins?
Approve the material and structure, dimensions, repeat, artwork version, copy, colours, print position, orientation, tooling scope, tolerances, proofing method, quantity and packing instructions in writing.