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Infrared Paper Coating Dryers 

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Introduction

Infrared Paper Coating Dryers are advanced industrial drying systems specifically engineered to cure, dry, and set coatings applied on paper and paperboard substrates with exceptional precision and speed. Unlike conventional hot-air drying systems that rely on convective heat transfer, infrared (IR) dryers emit electromagnetic radiation in the near, mid, or far-infrared spectrum that is directly absorbed by the coating layer — converting radiant energy into heat at the molecular level. This targeted, non-contact heating mechanism results in dramatically faster drying rates, superior coating quality, and reduced energy consumption. Kerone’s Infrared Paper Coating Dryers are purpose-built for the paper and converting industry, capable of handling water-based, solvent-based, UV-curable, and specialty coatings across a broad range of paper grades — from lightweight tissue and newsprint to heavy coated boards used in packaging and publishing. These dryers integrate seamlessly into existing coating lines, delivering consistent, uniform drying that enhances the gloss, printability, and barrier performance of the final product.

Why Choose Kerone Infrared Paper Coating Dryers

We are specialized in manufacturing and designing of various kinds of customize coating machines like infrared paper coating dryers, since last 48 years we are helping our clients to answer their specialized need of coating or converting machines. Our technical expertise and immense experience in the field of coating and converting enables us to produce solution that are desired or required for various industrial applications. Customised coating line/plants provided are entirely based on your plant set up.
With the time process of paper manufacturing have faced tremendous changes both in terms of demand of market with more smoother and glossy paper as external market evolution and the manufacturing process demanded very efficient process economical tools and techniques, efficiency of process could not be calculated without considering the time for processing the paper from raw material to finished glossy coated paper, hence the demand of faster and better production machineries were required. One of the important factors among the Paper coating process it drying of paper coats as the conventional paper coat dryers takes longer time and the drying of paper were not used to be uniform, this demand of industry is answered by the way of Infrared dryers for the application of drying paper coats.

Types and Features of Infrared Paper Coating Dryers

Infrared (IR) dryers use electromagnetic radiating energy just above the visible spectrum to heat the surface of the material under the process, since the heat generated in Infrared (IR) dryers completely depends upon the radiation capacity of surface of material under the process hence the issue of overheating of paper under process gets eliminated unlike in conventional heaters. Infrared in paper coating drying process provides fast and compact solution to the drying process. The IR drying leads to rapid drying of the coating colour to the immobilization point resulting in a predictably uniform coating surface with typically excellent printing characteristics.

Salient features of IR dryers

  • Approved by various prestigious installations throughout India.
  • Indigenously designed to meet world standards.
  • World class, reputed quality infrared emitters are used.
  • Steel construction.
  • High intensity of IR radiation up to 600 KW / m2.
  • Gold or white coated reflectors.
  • Quartz built sheet cover which is transparent to infrared radiation protects the emitters from splashes and easily cleanable.
  • Air cooling enhances the life of the component.
  • Air impingement and exhaust of vapours for increased efficiency.
  • Compact, typically 0.5 m in the direction of sheet travel (inclusive of exhaust)
  • Immediate ‘on’ and ‘off’ switching of emitters or Thyristorized (SCR) power regulator for step less power variation.
  • Automatic safety interlocks against breakage in web, machine stoppage, blower failure etc.
  • Trained service engineers for service backup.
  • Readily available spares.

Advantages of Infrared drying

  • High quality of surface coating from quick coating immobilization.
  • Negative reduction of scale on initial dryers.
  • Simplified sheet movement due to compact infrared dryer.
  • Improved porosity.
  • Suitable for various requirements.
  • Better coverage or less fiber swelling and show through.
  • Allows for lower coat weight and more synthetic on the surface coating.
  • Decrease in restoration time from sheet breaks or stops.
  • More control over process due to fine tuning ability.
  • The possibility of web damage during emergency stop gets limited due to instant cooling down ability.
  • Quick response to product temperature, speed and moisture variation (if moisture sensor is available) results in enhanced production and invariant quality.
  • The waiting time and under processed products gets minimized due to instant ‘Switch On’.

Key Features

  • High-Intensity Infrared Emitters: Equipped with short-wave, medium-wave, or ceramic far-infrared emitters selectable based on coating type and substrate sensitivity, delivering peak wavelength outputs optimally matched to the absorption spectra of water-based and solvent-based coating systems.
  • Zone-by-Zone Power Control: Independent PLC-controlled power zones across the dryer width and length allow fine-tuned energy distribution, eliminating cross-machine moisture profiles and ensuring edge-to-edge uniformity across the paper web.
  • Rapid Response & Instant Start: Unlike steam or gas-heated systems, IR emitters reach operating temperature in seconds, enabling immediate production restarts after stoppages and reducing warm-up energy losses.
  • Web-Safe Shutter System: Integrated water-cooled or pneumatic shutters automatically close over the emitter array during web breaks or line stops, preventing substrate scorching and protecting both the paper and the emitters.

Powered by AI, ML & IoT

Future-Ready Engineering Driven by AI & IoT

Our advanced AI, ML, and IoT technologies, this solution delivers smarter automation, real-time insights, and predictive intelligence to enhance efficiency and drive future-ready growth.

Real-Time Monitoring & Control

Continuous tracking of process parameters with instant adjustments.

Predictive Maintenance

Intelligent fault detection to prevent failures before they occur.

Adaptive Process Optimization

Dynamic tuning of operations for maximum output and efficiency.

Cloud Dashboards & Analytics

Unified access to real-time insights and performance trends.

Energy & Resource Savings

Smarter utilization of energy to cut costs and reduce waste.

Secure IoT Connectivity

Encrypted data flow with seamless integration across plant systems.

Applications of Infrared Paper Coating Dryers

Kerone’s Infrared Paper Coating Dryers are extensively used across paper, packaging, and specialty converting industries worldwide. Typical applications include:
    • Coated Printing & Writing Paper: Rapid drying of pigment and latex coatings applied on blade or rod coaters producing high-gloss, high-brightness sheets for offset and digital printing applications.
    • Flexible Packaging Film & Paperboard: Curing of barrier coatings, PE extrusion tie layers, and functional coatings on folding carton boards and food-grade packaging substrates where precise heat control prevents substrate warping.
    • Specialty Release & Silicone-Coated Papers: Gentle, consistent infrared drying of release liner coatings and silicone layers for self-adhesive label stock and industrial release applications.
    • Tissue and Hygiene Product Coating: Controlled infrared drying of lotions, binders, and functional coatings on tissue webs at high machine speeds without compromising softness or sheet integrity.
    • Security & Banknote Paper Processing: Precision IR drying of specialty inks, varnishes, and security coatings on high-value security paper grades where absolute consistency and contamination-free processing are mandatory.
    • Corrugated Liner & Starch Coating Lines: Efficient drying of starch, sizing agents, and surface-applied chemicals on linerboard and fluting for corrugated packaging production.
In an era where paper manufacturers and converters are under constant pressure to improve coating quality, increase line speeds, and reduce energy expenditures, Kerone’s Infrared Paper Coating Dryers offer a compelling, proven solution. By harnessing the precision of directed infrared energy, these systems eliminate the inefficiencies of convective drying — delivering faster evaporation, better coating adhesion, and superior surface finish with a smaller thermal footprint. Whether you are upgrading an existing coating line, installing a new production facility, or troubleshooting moisture-uniformity issues, Kerone’s engineering team brings the process knowledge and product expertise to design the right infrared drying solution for your specific application. With a track record of successful installations across paper mills, converting plants, and specialty coaters globally, Kerone remains your most reliable partner in driving productivity, quality, and sustainability in paper coating operations.

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Frequently Asked Questions (FAQ)

  • Kerone IR dryers are compatible with a wide range of coating chemistries including water-based pigment coatings (kaolin clay, calcium carbonate, latex binders), starch-based surface sizes, solvent-based coatings, UV-curable varnishes, silicone release coatings, and barrier functional coatings. The emitter type and wavelength are selected specifically to match the absorption characteristics of the coating formulation in use.

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