High Temperature and Humidity Impact Dry Lamination Process

The high temperature and high humidity environment of summer have a significant impact on the dry lamination production process, and a series of measures need to be taken to ensure product quality.

The following are the influencing factors and coping strategies that need to be noted in the dry lamination process in summer:

The Impact of High Temperature and High Humidity on Dry Lamination

• Insufficient adhesive curing: This may result in reduced peel strength.

• Slower bonding speed: Initial bonding strength is decreased, which may cause bubbling in the laminated film.

• Bag breakage during high-temperature cooking: An increase in bag breakage incidents during high-temperature cooking.

• Incomplete solvent evaporation: An increase in odors in the laminated film bags.

• Foaming in the adhesive tray: The laminated film is prone to spots, white spots, and crystal points.

• Changes in the feel of the laminated film: Increased occurrences of the film becoming hard and brittle.

Coping Strategies for High Temperature and High Humidity Weather

Film Control

Strictly control films that are prone to moisture absorption, store them in a dry environment, and avoid direct stacking on the ground. 

Solvent Quality Control

Purchase solvents from regular channels, store them in sealed containers, and test their moisture content.

Environmental Control

Enhance indoor air circulation to avoid the impact of humid air on equipment and materials.

Adhesive Preparation

Reduce the amount prepared, ensure the amount of curing agent, appropriately increase the amount of curing agent, and enhance the degree of cross-linking.

Process Parameter Adjustment

Increase the diameter of the outlet pipeline, install an exhaust fan, lower the air pressure inside the drying tunnel, and promote solvent evaporation.

Vehicle Speed and Equipment Monitoring

Pay attention to the scraper and guide rollers near the glue tank to check for condensation, reduce vehicle speed, and prevent water vapor condensation.

By comprehensively applying the above measures, the adverse effects of high temperature and high humidity on the dry lamination process can be effectively reduced, and the quality and production efficiency of laminated products can be improved. In actual operations, adjustments and optimizations should be made according to specific conditions to achieve the best lamination results.