Food and beverage packaging continues to evolve as consumers want more options with their products. One of the constants amid the new packaging options is the use of hot melt adhesives for case and carton sealing. Hot melt packaging adhesives are designed to set quickly under short compression times to form strong bonds. To meet consumer demand, packaging lines need to run smoothly and avoid downtime. To achieve this efficiency, packaging line operators need to understand how the adhesive and equipment work together to create a great seal.
Hot melt adhesive systems are configured to meet the needs of each production line with an array of pumps, hoses, nozzles and tanks for adhesive application. From the melter tank, which heats the adhesive pellets or chubs, to the pumps which pressurize the molten adhesive, each component plays a role in the packaging process. A key component of the system is the hot melt tank pressure. Along with the nozzles and application temperature, it impacts the rate of flow and amount of the adhesive being dispensed. For each application, operators must:
- Determine the pressure setting
- Integrate set speed in the application
- Avoid adhesive build-up and overspray
Maintaining proper settings can avoid issues, which in turn can lead to downtime.