Sandwich labels in the shoe industry
Multiple-layer labels for identification and control purposes
The usage scenario: labelling of shoes and shoeboxes with sandwich labels
Sandwich labels, also known as duplex labels, consist of several layers of paper or film on a backing paper. In contrast to conventional label designs, the multi-layer sandwich label has an adhesive middle layer, i.e. two adhesive labels on top of each other.
After the sandwich label has been attached, label parts or the entire ‘main label’ can be peeled off the backing label and glued to another substrate. In label production, individual perforations can be punched in the ‘main label’. This allows sections of the multi-layer label to be removed independently of each other.
HERMA can also create different adhesive properties, right up to ‘non-adhesive’. The selfadhesive multi-layer label can be applied manually or mechanically from sheets or rolls.
Laser-printable, sandwich-design labels on A4 sheets are required here. The label has three sections that can be removed separately (for sticking on the left and right shoes and the shoebox). Sandwich labels also require a grip flap, which enables parts of the main label to be easily detached from the backing label at a later point in time. The multiple-layer labels are attached manually after printing.
![[Translate to English:] Sandwichetiketten für Schuhe](/fileadmin/Industrieetiketten/Branchen/Weitere-Branchen/Leder-Industrie-Schuhe.jpg)
The solution: sandwich labels as shoe labels with non-adhesive grip flap and punched perforations in the main label
Shoebox labels are made of laser-printable label paper, with a high degree of white for particularly good contrast, even with small fonts and barcodes, for reliable machine readability.
The label can be pre-printed with a coloured stripe in the HERMA factory to highlight specific information, such as price or shoe size. The label information, e.g. a code, is then printed on the customer’s premises using a laser printer. The print colour used ensures that the toner is also securely anchored on the coloured surface during the re-printing process.
The ‘intermediate layer’ consists of a kraft paper coated on the underside with adhesive and with silicone varnish on the upper side. During the production of the adhesive material in our factory, a unique coating technique is used to create a non-adhesive area, which later forms the grip flap (marked yellow in the image).
The highest degree of precision is required when punching sandwich labels. Precise adherence to the punching depth in the µ range means that the main label can be easily removed from the backing label during application.
In this usage scenario, the non-adhesive areas in the adhesive bond are synchronised with the punched holes in the label sheet to ensure that the grip flap is positioned correctly.
Perforations can also be made in the backing paper so that individual strips of labels can be separated before the labels are attached.
The adhesive used has a very powerful tack and extra-strong final adhesion. It is universally applicable and adheres equally well to the rough, printed or varnished surfaces of shoeboxes and shoe soles. The label can also be easily removed from shoe soles.
The outstanding features of HERMA sandwich labels:
- A multilayer label with an adhesive middle layer
- The main label can be peeled off and glued to another substrate
- Non-adhesive grip flap
- Partially differing adhesive properties
- Perforations in the backing paper
- Universal adhesive with good adhesion to cartons and shoe soles
- Laser-printable
Sandwich labels can be used in many individual usage scenarios as required
HERMA sandwich labels can perform essential identification functions in many industries. For example, they are used in the medical sector as documentation labels.
We can offer you superior, tailor-made designs. Professional and individual. We’ll help you find the materials that are right for you – and we will select the printing process that is best suited to your usage scenario together. We’ll be delighted to advise you. Simply contact us.
Learn more about
Patients’ labels and documentation labels
Special labels for difficult surfaces
For laser printers and inkjet printers: Blank labels on sheets
On roll: Blank Thermal transfer labels