In the packaging sector, paper, carton, corrugated board, and flexible packaging materials are extremely sensitive to humidity changes. The use of an industrial humidifier in production, printing, and converting processes directly affects both material quality and machine performance. Maintaining ambient humidity under control is indispensable for production efficiency and product quality.
Carton and corrugated materials dry out at low humidity and become brittle, and folding and seam lines become uneven. Static electricity in flexible packaging films causes adhesion, dust collection, and print quality problems. Humidity changes affect printing ink viscosity, increasing color inconsistencies. Humidity control in food-contact packaging production is also part of food safety standards. Static electricity-related stoppages in high-speed packaging machines cause productivity losses.
In packaging facilities equipped with an industrial humidifier, carton and corrugated production areas generally target 50 to 60 percent relative humidity, flexible packaging printing lines target 45 to 55 percent, and converting lines target 45 to 55 percent. These values are fine-tuned based on material type and process requirements.
System design in packaging facilities should include separate humidity control loops for printing, converting, and packaging lines. In large-volume converting halls, high-capacity steam or atomization-type humidifiers with duct-type distribution manifolds provide a homogeneous humidity profile along each line. For high-speed flexible packaging lines, integrated design of static electricity and humidity control is critical.
With proper humidity management, carton and corrugated material strength is preserved, static electricity problems are eliminated, ink viscosity is stabilized, and food safety certification requirements are met. Stoppages in high-speed machines are prevented and overall equipment effectiveness values rise.
When selecting an industrial humidifier in the packaging sector, material type, production speed, hall volume, and existing ventilation infrastructure must be evaluated together.
As NKT – Humidity Control Technologies, we provide expert engineering support for industrial humidification applications. For humidification system design and equipment selection tailored to your facility, please contact us using the form below.
