Recycle system of aqueous paint

The present invention is to provide a recycle system of aqueous paint, wherein material balance is kept by controlling liquid amount within the recycle system when spray-coating. The system comprises: coating an article (50) to be coated with an aqueous paint in a water-curtain-type coating booth (1...

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Bibliographische Detailangaben
Hauptverfasser:	OHTSU, TAKAHITO, YAMANE, TUSYOSHI, SUEYOSHI, JUNICHI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL ATOMISING APPARATUS NOZZLES PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SEPARATION SPRAYING APPARATUS SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention is to provide a recycle system of aqueous paint, wherein material balance is kept by controlling liquid amount within the recycle system when spray-coating. The system comprises: coating an article (50) to be coated with an aqueous paint in a water-curtain-type coating booth (1), collecting an over-spray paint that does not adhere with the article by water-curtain (3), sending the collected solution to a condensation bath (7) through a booth circulation water bath (6), separating it by a ultrafiltration apparatus (9) into condensed paint and filtrate, the condensed paint being transferred to a paint tank (12), and taking the condensed paint out of the paint tank if necessary to adjust, followed by coating it as an aqueous paint, wherein a total amount of liquid present within the recycle system is controlled constant during spray-coating.