Coating and Lamination
The coating is to apply a varnish or glue on a base material (plastic film, aluminum, paper…) to provide specific functions related to the end-use of the product. The coating of glue (lamination) or the varnish (coating or printing) on the media, is carried out by rotogravure using a cylinder engraved hollow (called the weft), followed by a passage of the film in the drying tunnel to evaporate the solvents or water.
Technics : Gravure or 5 cylinders block
Deposit : 0,5 à 4 g/m²
Base material : Films 6-175 microns – Papers from 40 to 300 g/m² – Aluminum starting from 9 microns
What are the functions provided by the varnish ?
REXOR is supported by an R&D expanded to develop a comprehensive range of features to its varnishes: color, printability, sealability, barrier to oxygen or water vapor, food contact, reflection, authentication…
Lamination
The lamination is an operation which consists in laminating two materials with a method called dry phase. Two solutions exist for the lamination in dry phase :
Solvent glue – water-based glue
Application of a solvent or aqueous adhesive.
Water based solvent evaporation
calendering lamination of base film
Solventless glue
Application of the adhesive via a 5-cylinder system.
calendering lamination of base film
