NIR LEDs and NIR lasers can replace oven processes.

Near-infrared (NIR) laser sources (800-1000 nm) reduce curing processing time by quickly heating and incorporating NIR absorbents into the coating.
recently, scientists have been working on NIR LEDs and NIR lasers to replace oven processes for thermal coatings.
the latter converts the absorbed NIR laser into a

. The curing technology has been successfully applied to single-part thermoset coatings based on embedded polycycyanate/hydroxy polyester and melamine formaldehyde/hydroxyacrylate resins, of which methylamine flowers are near-infrared absorption materials. In addition, laser curing and LED light source were compared. In general, curing time is significantly reduced compared to conventional heat sources. In addition, due to the photochemical production of free agents and cations, light polymerization of acrylics or epoxides can be triggered simultaneously by adding suitable triggers.
alternative oven technology
the curing and photo-polymerization processes of the thermoo-solid resin systems create interoperability networks. In principle, technology based on photon NIR light source reporting may help to replace oven technology, in which the thermal activity of curing reactions is usually caused by ovens or coating applications heated with infrared radiators.
the study was published in the Journal of Coating Technology and Research, November 2019, volume 16, Issue 6, pp. 1527-1541.
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