Seal resistance of printings or coatings (heat resitance)
Over sealing of the sample by laboratory sealer against fine paper with smooth or structurated sealing bars, determination of max Ts [°C] till deterioration of printing or laquer (adhesion, discoloration) with constant ps [N/cm²], ts [s].
In short — AI-generated
This test determines the heat resistance of printings or coatings on flexible packaging materials. A laboratory heat sealer presses a fine paper against the printed surface under defined conditions of temperature, pressure, and time to simulate the sealing process.
The result indicates the maximum temperature a print or coating can withstand before it shows signs of adhesion failure or discoloration. Packaging developers use this value to ensure that the printing remains intact during the heat-sealing process of the final packaging.
Text is AI-generated; based on test method data curated and verified by Innoform.