| DANPOL PES-800 is a high molecular, armophous polyester for the lamination of different products. DANPOL PES-800 is supplied as a solid and will be dissolved in organic solvents for the corresponding laminating adhesives. Due to the chemical structure, the adhesives produced with this polyester have a very good adhesion to polyester films. Also for the bonding of steel, aluminum, brass, copper, wood, cardboard, textiles, polyethylene, polypropylene and PVC films, the adhesives based on DANPOL PES-800 are very suitable. This adhesive has a chemical structure very similar to polyester film and therefore it has a particular strong adhesion to this substrate. This adhesive is also recommended for bonding to steel, aluminum, brass, copper, vinyl, wood, board, textile, polyethylene and polypropylene. DANPOL PES- 800 shows very high adhesion properties on different materials. Further advantages are: High chemical resistance; High heat resistance; Good hardness and flexibility; Good dielectric properties for PETP films; Excellent transparency; Excellent freeze/thaw resistance Application: The lamination process involves two steps: application of the adhesive; combining the two surfaces of the substrates with heat and pressure. These two functions have been combined in a conventional laminating machine into an unwind station, a coating head, combing roller, and a rewind station. When laminating impermeable substrates, such as PETP/aluminum, the adhesive coating must be dried in order to eliminate the carrying solvent. Solvent retained between the laminated films will reduce the bonding of the adhesive. The drying time and the temperature of the oven depend upon factors such as coating weight of the adhesive, type of the used solvent and the percentage dilution. For most end-use applications a dry coating weight of the adhesive of between 5,0 – 7,5µ is necessary to obtain good bonding strength. This quantity of adhesive is recommended as a starting point, from which it can be judged the effectiveness of the adhesive. Maximum nip temperatures in combination with a high line-pressure of the calender improve the bonding strength and optimize the properties. Information provided by Danquinsa GMBH |
