With full-wrap labelling, which is often called D labeling or sleeve-style labelling, a label is wrapped around four sides of a pack, similar to a banderole. Thanks to this, full-wrap labelling offers many possibilities in the design of the pack, and this in turn contributes significantly to increasing the attractiveness of these packs at the point of sale.
Full-wrap labelling solutions are designed to be flexible for a wide range of pack shapes and materials, so that the optimum labelling result is always achieved.
A typical application is skin packs with different product protrusion heights, or those where the product is below the tray height. Since unprinted upper webs are mostly used on skin packs, the label plays an important role with these packs in distinguishing the product.
Full-wrap labelling is also used however for MAP thermoformed packs or trays in a wide range of shapes. The even surface of these packs offers many opportunities for label placement. When it comes to hinged blister packs or clamshell trays, full-wrap labelling can also contribute significantly to increasing the attractiveness of packs at the point of sale. The label also prevents the packs from springing open inadvertently.
Virtually all shapes can be considered for self-adhesive labels, since they are "held" by the carrier paper during the labelling process. Labels with curves or cut-outs for example are possible with self-adhesive labels, which means that they can be matched to the shape of the particular product or pack. This ensures that a 360° wrap-around can be achieved, as well as overlapping ends of labels.
A wide range of materials can be used for the production of self-adhesive labels. This is much larger than the materials used for other labelling solutions, since the carrier material performs a stabilising function.
When it comes to disposing of the carrier materials, the leading manufacturers of self-adhesive labels have set up comprehensive recycling programs. In addition to this, the large number of suppliers of self-adhesive labels has a positive impact on the cost-effectiveness of full wrap labelling.
Thanks to their size and shape, full-wrap labels offer a large surface for product communication and information while leaving the product visible.
Since food packs are frequently stacked on supermarket shelves, full-wrap labelling also
increases the visibility of the product on the shelf.
Transparent labels can also be used to present the product as completely as possible in the pack.
Full-wrap labels can be designed in such a way, that they offer additional functions and increase the user-friendliness of the pack. This means that there are a wide range of possibilities for differentiating the packed products at the point of sale.
Adhesive-free areas and perforations make it simple to remove the label and open the pack.
Full-wrap labels can also provide anti-tampering protection, since the consumer would immediately recognize a pack, which had been tampered with or already opened.
Surface for additional information
Additional information for the user such as recipes, cooking tips and advertising material can be placed on the back of the label.
Typically card sleeves are pushed manually over the pack and then fixed on the back by an additional label. Automatic full-wrap labelling with paper labels, which have a higher grammage weight, is therefore an attractive alternative.
In addition to the high level of automation, full-wrap labelling also offers benefits in terms of security. Self-adhesive labels adhere immeasurably better to the pack and remain securely in place during the subsequent logistical processes such as box loading, transporting and shelf stacking. The customer is also unable to swap the labels from cheaper to more expensive products in the supermarket.
Self-adhesive labels offer greater flexibility as regards design and shape. Whereas linerless labels can only be produced in a right-angled format, all shapes can be considered for self-adhesive labels, since they are "held" by the carrier paper. Labels with curves or cut-outs for example are possible, which means that they can be matched to the shape of the particular product or pack. It is the same story with the range of materials, which can be used for the production of self-adhesive labels – this is much wider than for linerless labels, since the carrier material for the self-adhesive labels has a stabilising effect on the label material.
Thanks to the lower grammage of the label material, the number of labels per roll of self-adhesive labels can be up to 30 percent higher than with linerless materials. This results in a reduced number of roll changes during production and therefore less downtime.
Another aspect, which restricts the efficiency of linerless labelling systems, is the fact that running these materials causes increased cleaning work on the machine. Labelling machines for running linerless labels are equipped with knives, so that the labels can be cut from the endless label stock. Residue of the adhesive or silicone layer on the labels builds up on these knives, which means that they have to be cleaned regularly in order to maintain optimum labelling. The machine running time is therefore reduced significantly.
The features of full-wrap labelling with MULTIVAC conveyor belt labellers are a high level of automation, maximum labelling accuracy. a high degree of flexibility and a wide range of label shapes and materials.
The L 310 full-wrap labeller can run self-adhesive labels with a label backing strip width of up to 500 mm. The labels are first dispensed onto the top of the pack. A press-on unit with servo drive then presses the protruding ends of the label onto the sides and base of the pack.This is done fully automatically at a very high speed and with maximum precision. The controls for the L 310 can be integrated into the machine control of a packaging machine, and the label dispenser is adjusted in height very ergonomically from the front of the unit.The L 310 full-wrap labeller is characterised by its:
The L 310 full-wrap labeller is operated simply and reliably via the intuitive MULTIVAC
HMI 2.0 user interface. Convenient adjustment units for the label dispenser ensure that it can be converted quickly to other pack formats and label sizes.
Thanks to their modular design, conveyor belt labellers can be individually configured or extended very flexibly. This means promotional labels can be applied automatically, or label and marking presence automated simply and reliably by means of suitable additional modules.
It is also possible to equip the labeller with further label dispensers, such as promotional labels or for additional top and bottom labelling. If a blow-on applicator is used, promotional labels in particular can be applied very precisely to uneven surfaces, delicate products or to the inside of a skinpack tray.
Due to the high speeds at which packaging lines produce today, it is no longer possible to detect individual faulty packs with the naked eye. In order to ensure only faultless packs get into the retail chain, every individual pack should ideally be inspected. This task is performed quickly, accurately and reliably by automatic inspection systems.
Camera-based systems can achieve even more: they can for example check whether a product is positioned correctly in the pack, or whether a pack is completely filled.
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