Tamper Evident & Security Labels

  • Tamper evident labels have a feature(s) that show if a label has been removed or if removal has been attempted
  • Security labels have a feature(s) that make the label difficult to copy or can show if certain things have happened to the product

Tamper Evident Features

Fragile or Ultra-Destruct Materials 
These materials are weaker than the adhesive bond to the substrate. This means that when they are removed, they come away in small pieces that would be impossible to fit back together. Perhaps the best of these is ultra-destruct vinyl, which is incredibly fragile with a strong adhesive but its fragility can make it too difficult to use in some circumstances (it cannot self-support so must be adherered to a surface with no holes or depressions). Other alternatives are made from paper, polyethylene and polypropylene. The polypropylene version is strong and very easy to handle but when removal is attempted it splits into layers leaving a layer stuck down and the printed layer peeled away.

 Colours available

Colours available

 

Security Cuts/Slits


Reveal Materials
These materials are usually made from polyester which gives enhanced durability and temperature resistance.  When removed they reveal a residue that stays stuck to the substrate in either pattern such as chequerboard or a message such as VOID.

Colours available

Colours available

 


Reveal No Residue Materials
These are similar to the standard reveal materials but the pattern is only evident ub the material once the label is removed. No residue is left on the substrate and the label should come away clean. This is particularly useful when labelling items that are checked and sealed on a regular basis such as in customs, or when security checking buildings and sealing doors, cupboards and drawers etc.

Colours available



Security Features

 

Red lamination or a red background prevents photocopying.
 
Thermochromatic ink changes colour at a set temperature. The change can be temporary or permanent. These are useful for dectecting if a product has been exposed to a temperature- e.g. quality control in the sterilization process, or for checking on misuse of a product for warranty purposes.
 
Photochromic ink changes colour when exposed to UV light. The change in colour is reversible. The ink can be clear or black and looks either no print (clear) or standard black in normal light but changes in UV light. This is a good covert way of adding information to a label to check if a printed label is genuine or counterfeit. The information can be in variable data such as a serial number.
 

Check digits are algorithms within a barcode or sequential number designed to provide a number that is difficult to make up. A good example of this is the 16 digit number across the middle of a credit card. Part of the number is an answer to a algorithm of the rest of the numbers. Because the number contains a calculation with an answer that needs to be correct to make a valid sequence it is almost impossible to just make up a number. Check digits can be from a range of standard algorithms or can be bespoke.
 
Custom Printed Holograms

Having your own custom holographic foil is a very costly expense. At the Label Centre we have created a cost effective alternative by using a simple colour changing foil to print your design on top of a metallic sliver base, this creates a holographic image which is very effective at a fraction of the cost of originating your own foil. This process can be cut into any shape needed (may incur tooling costs) and can also be printed through a thermal transfer printer to add extra text or logo.