Different types of caps



Caps with a seal or insert

A cap with a seal is a cap where an insert is integrated into the cap. There are different types of inlays:

  • IHS insert: Induction Heat Seal 
  • PS insert: Pressure Sensitive 
  • EPE insert: Extruded Poly-Ethylene foam

Caps with an Induction Heat Seal (IHS) insert are specially designed to show that a bottle is unopened. The caps have an adhesive layer on the inside. When the cap comes into contact with an induction field, the layer of aluminium or foil is heated and melts at the cap opening, giving the packaging an extra layer of protection when the cap is removed.

Induction seal caps can be applied with a sealing machine.

Self-sealing caps

Self-sealing caps, also referred to linerless of conical caps, are produced of only one raw material. These caps have a conical sealing lip inside the cap. This feature allows the cap to seal itself without the need for additional components, such as liners.

Vented caps

Vented caps allow air to regulate the pressure inside the packaging. This is important because pressure differences can lead to damage to the contents of the packaging, such as leakage or deformation.

Sealed caps

  • ROPP: Roll On Pilfer Proof
  • TE: Tamper Evident

Caps with a sealing give extra protection to your product. You can immediately see whether the bottle has already been opened or not. When the bottle is opened, the tamper evident ring remains attached to the neck of the bottle.

Childproof caps 

These child-proof caps are specifically tested so that children cannot get them open. They usually require a “push-twist” technique to open.

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