Labels are the cheapest lever in packaging. A new pouch requires a new print run, a new dieline and often a new order quantity. A new label requires artwork and a roll, and it can turn the same blank pack into a different product for a different market, a different flavour or a different season.
That flexibility is also where most label projects go wrong. Labels are specified late, after the bag or the bottle has been chosen, and the details that actually matter on a filling line - the core size, the wind direction, the adhesive and the liner - get decided by whoever answers the phone. This guide covers what to decide before you order a custom packaging label or sticker.
What a Label Actually Has to Do
Before choosing material, be clear which of these jobs the label has to perform. Most labels do two or three at once, and the combination decides everything else.
- Carry the brand panel. Logo, product name, visual identity. This is the job people think of first.
- Carry variable data. Lot codes, best before dates, batch numbers and market specific panels that change every run.
- Carry compliance information. Ingredients, allergens, nutrition, warnings and recycling marks, which vary by market.
- Seal or secure. Tamper evident seals, security seals and closure labels that must show if a pack has been opened.
- Cover existing print. Over-labelling for a new market, a correction or a relabelled private label run.
If the label carries variable data, it is doing a job that printing the film cannot do, because film print is fixed for the whole run. That single point decides a lot of label specifications.
Label Materials
The face material determines how the label looks and how it survives handling.
| Face material | Look and feel | Best suited to | Watch out for |
|---|---|---|---|
| White paper | Matte, writable, classic | Dry goods, cartons, boxes, logistics and compliance panels | Not suitable where the pack gets wet or refrigerated |
| Coated paper | Smoother, brighter print | Retail cartons and dry product packs where colour must pop | Still vulnerable to moisture and to scuffing in transit |
| White BOPP film | Glossy, tough, opaque | The default for flexible packs, food, cosmetics and any damp environment | Needs a squeegee or hard pressure to apply without bubbles |
| Clear film | No-label look, shows the pack beneath | Premium pouches, bottles and jars where the container is part of the design | Air bubbles and any dust underneath are visible, so application matters more |
| Metallic or foil faced | Reflective, premium | Gifting, spirits, supplements and limited editions | Fingerprints and creases show up clearly |
| Kraft or textured paper | Natural, uncoated | Clean label, organic and artisan positioning | Softer print contrast and less scuff resistance |
The material has to match the container as well as the brand. A flexible pouch is squeezed and flexed in the hand, so a stiff paper label can lift at the edges over time where a conformable film label will not.
Adhesive Choice Matters More Than People Expect
Adhesive failure is the most common complaint about labels, and it is almost always a specification issue rather than a manufacturing defect.
- Permanent adhesive is the default. It should not lift in normal handling, but it is not designed to be removed cleanly.
- Removable adhesive is used for promotional labels, price stickers and anything the customer peels off.
- Freezer and chilled grades keep their tack at low temperature. Standard adhesive can release when a pack goes from a warm filling line straight into a chiller.
- High tack adhesives are needed for low surface energy plastics and for recycled content films, where a standard adhesive may not hold at all.
- Wet strength and moisture resistant options matter where condensation forms on the pack, which is common on chilled and frozen products.
How to test an adhesive before you commit
Two practical tests: apply a sample to the actual container, not to a sheet of paper, and then leave it for a week in the conditions the product will travel in. Labels that pass on a desk frequently fail in a chilled distribution chain.
Finishes and Durability
Finish is both a design decision and a durability decision.
- Gloss gives the strongest colour and the most contrast, and it resists scuffing well on film materials.
- Matte reads as premium and hides handling marks, but it scuffs more visibly than gloss on a hard handled pack.
- Soft touch gives a velvety surface that photographs and feels expensive, and it is the most sensitive to greasy fingers.
- Spot UV adds a raised gloss detail over a matte base, and it is a low cost way to make one element stand out.
- Varnish or laminate over the whole label protects the print on packs that rub against each other in a carton.
How the Label Will Be Applied Decides the Format
This is the part that causes late surprises, so decide it before artwork.
- Roll labels feed automatic applicators and labelling machines. They are also the practical choice for high volumes applied by hand, because a roll sits in a dispenser and feeds one at a time.
- Sheet labels suit small volumes, hand application and short promotional runs.
- Core size and outer diameter must match the applicator, and this is not something to leave to chance. A roll that is too large for the machine, or wound on the wrong core, will not run at all.
- Wind direction and label orientation on the web must match the machine's direction of travel.
- Gap between labels must suit the sensor on the applicator.
The roll specification you must get in writing
If the labels will be applied by a co-packer or a filling line you do not control, ask them for the roll specification in writing before ordering.
Variable Data: Lot Codes and Dates
One of the strongest arguments for a label on a flexible pack is that it carries information that changes every run. Lot numbers, best before dates, batch codes and market specific panels can all be printed on the label rather than into the film, which means one bag structure can serve several markets without a new print run.
It also means a correction does not require scrapping packaging. If a warning panel or an address changes, you reprint the label, not the bag. See the custom label and sticker range for roll formats produced for exactly this workflow.
Artwork and Print
- Digital print suits short runs, versioning, promotional labels and artwork that changes between orders, because there are no plates to buy.
- Flexo and gravure print reward volume. Unit cost falls as quantity rises and colour consistency across large batches is stronger.
- Small text and fine marks need to be checked at final size, not on a screen at 400 percent. Ingredients panels and barcodes are the usual casualties.
- Barcodes need quiet space around them and adequate contrast. A barcode printed over a dark or busy background is a scanning failure waiting to happen.
- Bleed and dielines should be supplied cleanly so the printed label is not shifted against the cut edge.
Where the Label Goes on the Pack
Placement changes the specification
Placement changes the label specification, not just the design.
- On a stand up pouch, a label on the front panel needs to conform to a surface that flexes, so a film material holds better than a stiff paper one.
- On a flat bottom bag, the flat front panel is a stable surface and takes a larger label comfortably, which makes it a good host for a compliance panel that must stay readable.
- Across a seal or closure, the label is doing a tamper evident job and needs both adhesion and a material that will not tear on removal.
- On a carton or shipper, the label is usually functional rather than decorative, and paper is normally the right answer.
MOQ, Samples and Lead Time
- Minimum order quantity: 1 piece per design and size, so a new flavour or a small promotional run does not need a factory minimum.
- Sample: a physical sample is available, with roughly a two day sample lead time.
- Production lead time: about seven working days after artwork approval.
- Printing: gravure print and digital print, both available from the same supplier.
- Shipping: courier and air, sea and trucking, with DDP terms available for most markets.
Those timelines run from approved, press ready artwork. Since labels are usually the last item specified before a launch, the artwork loop is what usually costs the week, so send files with fonts outlined and colours referenced.
Ten Questions to Ask a Label Supplier
- Which face material and adhesive do you recommend for this container and this distribution chain?
- Will the label conform to a flexible pack without lifting at the edges?
- What roll core size, outer diameter and wind direction can you supply?
- Can you supply a roll that runs on our existing applicator, and what specification do you need from us?
- Can you print lot codes and dates on the roll, or is that done in-house?
- What is the smallest text size your process holds reliably at final size?
- What is your real minimum order quantity per design?
- Can you supply a physical sample on the actual container so we can run a durability test?
- What is the lead time measured from, artwork approval or deposit?
- Will the same team handle repeat orders so the specification does not drift between batches?
Common Mistakes
- Specifying the label after the container. Adhesive and material choices depend on the surface and the environment, so the label decision has to come earlier than it usually does.
- Testing on paper instead of the real pack. A label that holds on a desk tells you very little.
- Forgetting the applicator. Core size, wind direction and label gap are engineering constraints, not preferences.
- Choosing matte for a hard handled pack. It looks better in a photograph and worse after a week in a carton.
- Treating the compliance panel as an afterthought. Confirm required ingredient, allergen and warning layouts before artwork is finalised.
Getting Started
If you are labelling a new product, adding lot codes and dates to an existing pack, or moving a product into a new market without reprinting the film, send your container type, the surface it will go on and how it will be applied. You will get feedback on the right material, the right adhesive and a lead time you can plan a launch around.
Ready to upgrade your packaging labels? Message us on WhatsApp at +86 131 4300 7193 or email info@mepacks.com with your container and application method. You can also browse the full custom packaging range to compare formats side by side.