Board Coating Moisture

Not only can our moisture sensors monitor moisture board coating production process, but they can also measure the board coating thickness. Coat weight has been calculated for many years using the difference between oven dry weight readings from scanners with basis weight and moisture sensors before and after each coating station. New measurement methods based on near infrared (NIR) and middle infrared (MIR) techniques have significantly improved the measurement of dry coat weight and for the first time enabled accurate independent measurements of both sides of the sheet or board.


With the help of industry partners and 40 years of knowledge, MoistTech has developed the IR 3000 moisture sensor  which is ideally suited to measure the moisture levels as well as water and solvent based coatings and coat weight thicknesses during the board coating process.


In the board coating process there are many locations throughout manufacturing that the paper moisture sensor can be used. The location is often determined by the space availability and accessibility on the web/converting machinery as well as manufacturer’s moisture control plan. Once installed, a manufacturer can continuously monitor the process and can control the moisture content or board coating, either manually or automatically.

Benefits of Board Coating Control

MoistTech is very experienced with the requirements in the paper/converting process. Our sensor calibrations, measurement wavelengths, algorithms and sensor optical requirements are pre-set at the factory. Typical moisture accuracy is about ±0.05%, coating accuracy varies from 0.1 to 0.01 micron depending on coating type. Typical analog range is 0-10% moisture and up to as much as 40%, subject to application. The outputs can be adjusted to optimize PLC or recording requirements. For addition information or to discuss your application, please contact our headquarters.


Check out our other converting moisture applications to learn more.

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