Coating and drying of objects by way of infrared radiation

US6858261B1 · kind B1 · utility

Assignees

• Advanced Photonics Technologies AG · DE
• Josef Schiele OHG · DE

Inventors

• Kai K. O. Bär · Bad Aibling, DE
• Rainer Gaus · Holzkirchen, DE
• Martin Sedlmeyr · Haar, DE
• Stefan Schiele · Forstinning, DE

Key dates

• Filing date: Oct 21, 1999
• Grant date: Feb 22, 2005
• Expiry date: Oct 21, 2019

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F26B2210/16
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a method of drying coated and/or impregnated objects (5), in particular lacquered wood, wherein [drying of] a coating agent and/or impregnation agent applied to the surface of the object concerned is completed before a characteristic period of time has elapsed, by irradiating the coated or impregnated surface with infrared radiation. The characteristic period of time is determined by the time needed for components of the coating and/or impregnation agent (22) to migrate away, i.e. by penetrating into the object (5), so that the quality of the coating or impregnation is impaired. Alternatively or in addition, the characteristic period of time is determined by the fact that after it has elapsed, a solvent and/or dilution fluid that is contained in the coating and/or impregnation agent (22) and is to be driven out and/or bound during the heating process has caused fibers in the object (5) to be raised up, so that a secondary treatment of the surface is necessary or desirable.