Technical

Solvent-Based Lamination

Lamination is the process of bonding films with different properties into a single packaging material. In the solvent-based method, a solvent-based adhesive is applied to one film, the solvent is evaporated in a drying tunnel, and the film is joined to the second layer under pressure.

This method is preferred for structures that need high bond strength and where barrier properties matter. It can also be used in demanding applications such as packaging that will undergo heat treatment.

Solventless Lamination

Solventless lamination uses reactive adhesives that contain no solvents. The adhesive is applied to the film in a very thin layer and the layers are joined; the bond strengthens during the curing process.

With no drying stage, energy consumption and emissions are low. Widely used for food packaging, this method requires the appropriate curing time to be completed before moving on to subsequent processes.

Special Varnish Application

Special varnishes give the packaging surface a matt, gloss or textured look. With register varnish, only certain areas of the design can be highlighted, for example a gloss logo on a matt background.

As well as the visual effect, varnish gives the surface extra protection against abrasion. On premium products, its feel supports brand perception.

Slitting

Slitting is the process of dividing material produced in wide rolls into narrower rolls at the width the customer requires. Cutting with precision blades on automatic slitting machines is important for the rolls to run smoothly on the filling line.

Correct slitting tension and even winding reduce film wander on the machine and edge defects.

Cold Seal Coating

Cold seal is an adhesive coating that seals with pressure alone, without heat. It is applied to specific areas of the film; when the pack is closed, the coated surfaces come into contact and form a bond.

For heat-sensitive products such as chocolate and ice cream, it keeps heat away from the product and delivers efficiency on high-speed packing lines. The coating area is planned together with the design and seal areas.

Perforation

Perforation is the process of creating controlled holes or easy-opening lines in packaging material. It is applied for needs such as letting fresh produce breathe, easy tearing and air release.

It can be done by mechanical, laser and ultrasonic methods. The size and frequency of the holes are determined by the product’s respiration and protection needs.