What the materials cover

These presentation materials cover sealing layers and sealing films for flexible film packaging, from materials to application. They explain common sealing layer systems and their properties, the influence of additives, and test methods for analysing practical cases. Further topics include heat-seal, impulse and ultrasonic sealing, basics of polymer chemistry, and peel sealing as an alternative to permanent sealing. The documents also address systematic film formulation, typical practical problems, and an exercise translating packaging requirements into a recipe. They suit professionals from production, development, packaging technology, quality assurance, purchasing, sales and marketing.