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A platform for research: civil engineering, architecture and urbanism
Appearance and performance of waterborne coatings in the furniture industry: comparison between processes
Furniture Industry must find solutions to replace solvent based coatings to meet the VOC European Regulation. Because the majority of companies must reduce their emissions by 50 - 80%, all partners such as raw materials and coatings producers, equipment suppliers and furniture manufacturers, must work together to develop technical and economic solutions. Waterborne coatings are the more studied solution. At present, several technologies are proposed to the companies in particular in drying processes : air, jet air, infrared with or without air, microwaves... A project supported by ADEME, coatings and equipment producers, some furniture manufacturers and UNIFA started 18 months ago to give technical and economic information to compare the available drying processes, used alone or combined, for all types of waterborne coatings used in the furniture: mono component, bi component, UV cured and dual cured products. The approach integrated: appearance, performance, criteria of production and energy consumption. This paper will present results obtained at the mid term project. To reduce the VOC emissions, waterborne technology is one of answers. For 1 year, solutions proposed by coating suppliers never stop improving. We found monocomponent systems to replace nitrocellulosics systems, waterborne UV for solvent UV and now waterborne polyurethane for conventional solvent PU, even if some development does not satisfy all criteria. To-day, even if some species requires to take precautions, appearance, touch may be 'sold'. According to the performance, a hierarchy of coatings exists as for solvent products. Their weakness is their chemical resistance. To choose another technology should not transfer the pollution to an other environmental impact such as energy, waste... This study shows that the energy consumption is not as high as we could imagine, even if some approaches were simplified during experiments. There are a set of equipments for applications but also to dry coatings according to the finish and the production rate.
Appearance and performance of waterborne coatings in the furniture industry: comparison between processes
Furniture Industry must find solutions to replace solvent based coatings to meet the VOC European Regulation. Because the majority of companies must reduce their emissions by 50 - 80%, all partners such as raw materials and coatings producers, equipment suppliers and furniture manufacturers, must work together to develop technical and economic solutions. Waterborne coatings are the more studied solution. At present, several technologies are proposed to the companies in particular in drying processes : air, jet air, infrared with or without air, microwaves... A project supported by ADEME, coatings and equipment producers, some furniture manufacturers and UNIFA started 18 months ago to give technical and economic information to compare the available drying processes, used alone or combined, for all types of waterborne coatings used in the furniture: mono component, bi component, UV cured and dual cured products. The approach integrated: appearance, performance, criteria of production and energy consumption. This paper will present results obtained at the mid term project. To reduce the VOC emissions, waterborne technology is one of answers. For 1 year, solutions proposed by coating suppliers never stop improving. We found monocomponent systems to replace nitrocellulosics systems, waterborne UV for solvent UV and now waterborne polyurethane for conventional solvent PU, even if some development does not satisfy all criteria. To-day, even if some species requires to take precautions, appearance, touch may be 'sold'. According to the performance, a hierarchy of coatings exists as for solvent products. Their weakness is their chemical resistance. To choose another technology should not transfer the pollution to an other environmental impact such as energy, waste... This study shows that the energy consumption is not as high as we could imagine, even if some approaches were simplified during experiments. There are a set of equipments for applications but also to dry coatings according to the finish and the production rate.
Appearance and performance of waterborne coatings in the furniture industry: comparison between processes
Erscheinungsbild und Gebrauchstüchtigkeit von Wasserlackbeschichtungen in der Möbelindustrie: Verfahrensvergleich
Roux, Marie-Lise (author) / Delorme, Thierry (author) / Guillemot, Antony (author) / Laigle, Yann (author) / Chave, Thierry (author) / Vial, Francois (author)
2006
15 Seiten, 3 Bilder, 10 Tabellen, 10 Quellen
Conference paper
English
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