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What is Sleeve Packaging?

Sleeve packaging is one of the secondary packaging that, compared with carton box packaging, has no ends that cover the containment (container).

Sleeve packaging refers to such packaging that a paperboard or cardboard sleeve or flat blank sleeve wraps around the container (bowls, trays, pots, tubs, cups, bottles, …) and makes it not necessary to load them into carton boxes.

What are the advantages of Sleeve Packaging?

Sleeve packaging, in contrast with the traditional carton box packaging, has some evident advantages to be mentioned.

The first of all is that sleeve packaging is simple in terms of appearance. Rather than a carton box that has six facets, sleeve is only a flat paperboard that slides around the container(s).

And when it comes to the packaging of multipack containers, the overall size of the multipack calls for a larger carton box that consumes more materials and the packaging may not be stable enough, while the sleeve needs less material and once it is slid around the containers the stability of packaging depends on the multipack itself, or say, the sleeve is more like a part of the whole thing rather than the packaging that support the containers. The sleeve sometimes has cutouts to hold the containment which attracts more attention on the shelf.

carton box and sleeve packaging
Sleeve vs Carton – Which One is Better?

Sleever: Packaging Machine for Flat Sleeve Packaging

Sleever generally refers to Wrap-Around Sleever, which is a secondary packaging machine for the sleeve wrap-around packaging automation.

Wrap-Around Sleever is able to

group multiple containers or just a single container such as tray or bowl,
place the flat blank sleeve on the container(s),
square, fold and slide sleeve around them
and seal the sleeve on the bottom

Containers (trays, cups, pots…) manually fed or come from upstream machines such as tray sealer and thermoformers, are arranged in a timely collated manner by the infeed system
The infeed system coordinates with central PLC and servo driven sections in the wrap-around sleever for the introduction of containers.

Cardboard sleeves are placed in the magazine
The sleeve erectors catche sleeves and place them on each container introduced
No sleeve fed when no container introduced
Unique and patented erector design with maximum performance

Containers with sleeves on them are carried to the folding section of the machine
The glue unit sprays hot melt glue on the sleeve
A series of guides and components fold the sleeve and wrap the sleeve around the container

After the sleeve is wrapped and sealed around the contianer one discharge is complete
Outpus can be arranged to downstream machinery for case packing and so forth