How to Integrate Labeling and Packing for Efficiency

Views: 3106 Author: Howie SUN Publish Time:
A labeller is the most frequent short stop on many lines, and the accumulator in front of it decides whether that stop reaches the filler.
Key facts at a glance
TypesSleeve, hot melt glue OPP, rotary sticker, self-adhesive
RateMatched to the filler, with an accumulator between
Key controlLabel position, glue pattern, shrinkage, adhesion
MaterialOPP film, PVC or PETG sleeve, paper sticker
Key decisionFull sleeve or partial wrap
Line positionAfter filling, before packing

Sleeve, OPP or sticker: what decides the choice?

A full-body sleeve covers the whole bottle and gives the most design freedom, at the cost of film and a shrink tunnel. An OPP wrap-around label is the cheapest per unit at high speed. A sticker suits short runs and curved surfaces where a wrap is impractical.

Where does the labeller sit in the line?

After the filler and before the packer, normally with an accumulator on each side. The labeller is the most frequent short-stop on many lines, so the accumulator size in front of it decides whether a label roll change reaches the filler or not.

Label typeCost per unitBest for
OPP wrap-aroundLowest at volumeHigh-speed round bottles
Full-body sleeveHigher film costFull coverage and shaped bottles
Self-adhesive stickerMiddleShort runs and flat or curved panels
Paper label with glueLow material, slowerGlass bottles and craft products

Reference unit for this duty: the Rotary Sticker Labeling.

What decides label adhesion on a wet bottle?

Surface energy, bottle temperature and glue choice. A cold bottle straight from the filler carries condensation, and a water-based adhesive will not bond to it. Hot melt handles a damp surface better, which is why it dominates high-speed beverage lines.

Rated output, change parts and services are listed on the Sleeve Labeling page.

How is the labeller synchronised with the filler?

Through the conveyor and an accumulator, not through a mechanical link. The labeller runs slightly faster than the filler and the accumulator absorbs the difference. A labeller matched exactly to the filler speed will stop the line at the first roll change.

The same question is worked through from another angle in Hot Melt Glue vs Self Adhesive vs OPP Labeling.

How to read the numbers. The capacity figures here are reference ranges taken from the product specification. A rated label rate assumes one label and one roll length; roll changes sit outside it, so size on 0.65-0.85.

Frequently asked questions

Can one labeller run sleeve and OPP?

Not without a change of the applicator. Sleeve and wrap-around are different machines with different film paths, so a plant running both normally has two labellers.

What is the cheapest label per bottle?

At high volume, an OPP wrap-around label usually is, because the film is thinner and the machine runs faster. A sleeve costs more per unit but covers the whole bottle and allows full-body design.

What adhesive is used for OPP labels?

Hot melt glue applied at the leading edge, the trailing edge and the seam. The pattern and the pot temperature decide both the bond and how clean the bottle looks.

Can a labeller apply a neck band and a body label?

With two applicators or a combined unit, yes. They are separate stations with separate film paths, so the line needs the space and the changeover time for both.

Key takeaways
  1. Position drift is a bottle handling problem, not a label problem.
  2. Sleeve quality is a tunnel profile and film direction question.
  3. The accumulator in front of the labeller protects the filler.
  4. Perforation, tension and tunnel temperature act together.
About the author
Written by the Sunswell engineering team - led by Howie SUN, Founder & CEO, with 14 years in filling and blow-moulding equipment R&D and turnkey project delivery across 71+ countries.
Last reviewed: 2026-08-28 . Reviewed by Sunswell engineering team
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