Coating and drying of objects by way of infrared radiation
First Claim
1. Method of drying lacquered wood, in cases such that a lacquer applied to a surface of a wooden object contains a solvent or dilution fluid that is to be driven out or bound during drying, and such that the solvent or dilution fluid has the property of penetrating into the wooden object in the undried state with the result that uniformly structured regions change their position in the wooden object and, after a characteristic period of time following application of the lacquer, alter the surface structure in such a way as to make secondary treatment of the surface necessary or desirable, comprising:
- completing the drying before the characteristic period of time has elapsed by irradiating the surface of the wooden object with infrared radiation.
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Accused Products
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.
38 Citations
19 Claims
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1. Method of drying lacquered wood, in cases such that a lacquer applied to a surface of a wooden object contains a solvent or dilution fluid that is to be driven out or bound during drying, and such that the solvent or dilution fluid has the property of penetrating into the wooden object in the undried state with the result that uniformly structured regions change their position in the wooden object and, after a characteristic period of time following application of the lacquer, alter the surface structure in such a way as to make secondary treatment of the surface necessary or desirable, comprising:
completing the drying before the characteristic period of time has elapsed by irradiating the surface of the wooden object with infrared radiation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. Method of drying a lacquered wooden object in cases such that a lacquer applied to a surface of the wooden object includes a component, with the properties that the presence of the component in a region of the surface or in the lacquer ensures a desired quality of the coating, however in the undried condition the component penetrates into the wooden object and after a characteristic period of time following application of the lacquer, the component is no longer present in sufficient quantity in the region of the surface or in the lacquer so that a secondary lacquering is necessary or desirable, comprising:
completing the drying before the characteristic period of time has elapsed by irradiating the surface of the wooden object with infrared radiation.
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19. Apparatus for lacquering a wooden object comprising:
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an application chamber for continuously applying a lacquer to the wooden object, and a transport mechanism for continuously transporting the wooden object from the application chamber to an irradiation device for drying the lacquer, wherein the transport mechanism is so constructed that the speed of the transport mechanism is adjustable in such a way that the wooden object can be conveyed from the application chamber into the irradiation device and thereby dried within less than 5 seconds.
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Specification