Drying with Infrared Radiation
Increased Efficiency in Printing and Textile Processes
In the industrial production of printed products and textiles, fast and uniform drying is a critical process step. Infrared radiation (IR) offers a proven and energy-efficient solution. It enables contactless, targeted heating, thus accelerating the evaporation of moisture or binders. Especially in the paper processing and textile industries, IR technology delivers consistently high product quality with optimized process speed.
Technical Basics
Wavelength-Adapted Heat Transfer
IR drying is based on electromagnetic radiation in the infrared spectrum, which lies between 780 nanometers and 2 millimeters. Depending on the wavelength and material absorption, a distinction is made between:
- Short-wave IR (NIR): penetrates quickly, ideal for water-containing layers
- Medium-wave IR (MIR): works at the surface, suitable for solvent-based media
- Long-wave IR (FIR): gentle drying, for sensitive materials
Radium TECH's infrared emitters deliver precisely tailored spectra for various materials and process requirements. The energy is converted into heat directly within the material – without heat loss through air or contact surfaces.
Applications
Printing Industry and Textile Manufacturing
Infrared emitters are used in numerous industrial drying processes. Two key areas are paper printing and textile production:
Paper Printing (Offset, Flexo, Digital):
- Fast drying of inks, varnishes, and coatings
- Prevention of smudging or peeling
- Optimization of production speed while maintaining consistent quality
Textile manufacturing (printing, dyeing, coating):
- Drying of dyes, resins, and binders
- Thermosetting after textile printing
- Processing of synthetic fibers and natural materials under controlled temperatures
By selecting appropriate IR wavelengths, it is ensured that the energy is absorbed precisely where it is needed – at the surface or within the material.
Advantages of IR drying compared to conventional methods
For manufacturers seeking an economical and modern drying technology, infrared radiation offers numerous advantages:
- Contactless heating: No mechanical stress on sensitive surfaces
- Fast response: Emitters can be switched on and off instantly
- Small footprint: Compact drying units are possible
- Energy efficiency: Direct energy transfer into the material, no convection necessary
- Process reliability: Uniform heating, adjustable and repeatable
- Environmentally friendly: No need for solvents or additional chemicals
The technology can be used as a standalone solution or in combination with other drying methods (e.g., hot air or UV).
Conclusion: IR Technology as the Key to Modern Drying Processes
Infrared drying offers industrial solutions for precise, resource-efficient, and fast process control in paper and textile production. Whether for thin paper webs or thick textile fabrics: IR drying delivers predictable results with minimal energy consumption – a clear advantage for anyone who wants to combine quality with efficiency.
Looking for an efficient drying solution? Our experts will advise you!
Whether modernizing existing drying lines or integrating new systems – our specialists at the Radium TECH Application Center will support you in selecting suitable IR emitters. Together, we will find the optimal solution for your printing or textile application.