The aim of lamination is to combine materials to improve the properties of a single film.
Dry lamination involves bonding two or more strips of a flexible backing material using an adhesive dissolved in a solvent (if adhesive tape is used, the process is called complexing).
These strips can be made of film, paper or aluminium foil. The adhesive is applied to the less absorbent strip, which is then bonded to the second strip by the high pressure exerted by rollers (heated if necessary), to produce an ultra-resistant lamination. This lamination can consist of two layers (duplex), three layers (triplex), or more.
Laminating techniques improve the appearance and properties of support materials. The type of adhesive chosen is mainly dictated by the end use of the product. Different technologies can be used, such as calendering, flat or hot lamination, to cover as many applications as possible. Laminated products can be produced in the form of rolls or strips wound on a reel, depending on the customer's requirements. The material can be supplied by the customer or purchased by ADDEV Materials, as required.
Coating is a surface treatment that involves applying a liquid coating (adhesive, lacquer, paint, oil, etc.) to a substrate (paper, fabric, plastic film, metal sheet, etc.) to give it specific beneficial properties for a given application.
The coating process is generally followed by drying and, if necessary, cross-linking.
ADDEV Materials uses an engraved cylinder for its coating operations. The cylinder transfers the adhesive to the film, which is then introduced into a drying oven where the solvents evaporate.
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