Curtain coating method

The invention relates to a curtain coating system (10) comprising a substrate (12), a conveyor (22/24) that conveys the substrate (12) in a downstream direction (D) through an impingement zone (14), and a free-falling curtain (16) that impinges the substrate (12) in the impingement zone (14) at an i...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	ROBERT J. FERMIN, ALEXANDER A. JANSEN, CHUNHWA WANG
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a curtain coating system (10) comprising a substrate (12), a conveyor (22/24) that conveys the substrate (12) in a downstream direction (D) through an impingement zone (14), and a free-falling curtain (16) that impinges the substrate (12) in the impingement zone (14) at an impingement angle (¸) to form a coating (18) on the substrate (12) of a desired coating weight (ctwt); wherein: the impingement angle (¸) is less than 90°; the force ratio (Re) is greater than about 5.25; and the coating (18) has a thickness (t w ) that varies less than 2% from a predetermined uniform final coating thickness (t) over the width (w) of the coating (18).