CURTAIN COATING METHOD

A curtain coating method comprising the steps of conveying a substrate (12) in a downstream direction (D) through an impingement zone (14), and impinging the substrate (12) with a free-falling curtain (16) in the impingement zone (14) at an acute angle (?). The force ratio (Re) of the curtain (16) a...

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Main Authors WANG, CHUNHWA, JANSEN, ALEXANDER, A, FERMIN, ROBERT, J
Format Patent
LanguageEnglish
French
Published 23.03.2006
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Abstract A curtain coating method comprising the steps of conveying a substrate (12) in a downstream direction (D) through an impingement zone (14), and impinging the substrate (12) with a free-falling curtain (16) in the impingement zone (14) at an acute angle (?). The force ratio (Re) of the curtain (16) at the impingement zone (16) is greater than about 5.25 (e.g., greater than about 5.50, about 6.00, about 6.50, about 7.00, about 7.50, and/or about 8.00) whereby the method may be used with a curtain (14) having a high mass flow rate (Q*?) and/or a low viscosity (?). L'invention concerne un procédé d'enduction par rideau qui consiste à transporter un substrat (12) en aval (D) traversant une zone d'égouttage (14) et à heurter ledit substrat (12) avec un rideau en chute libre (16) dans la zone d'égouttage suivant un angle aigu (?). Le rapport de force (Re) du rideau (16) au niveau de la zone d'égouttage (16)excède environ 5,25 (par exemple environ 5,50, environ 6,00, environ 6,50, environ 7,00, environ 7,50, et/ou environ 8,00). Ledit procédé peut servir avec un rideau (14) ayant un débit massique élevé (Q*?) et/ou une viscosité faible (?).
AbstractList A curtain coating method comprising the steps of conveying a substrate (12) in a downstream direction (D) through an impingement zone (14), and impinging the substrate (12) with a free-falling curtain (16) in the impingement zone (14) at an acute angle (?). The force ratio (Re) of the curtain (16) at the impingement zone (16) is greater than about 5.25 (e.g., greater than about 5.50, about 6.00, about 6.50, about 7.00, about 7.50, and/or about 8.00) whereby the method may be used with a curtain (14) having a high mass flow rate (Q*?) and/or a low viscosity (?). L'invention concerne un procédé d'enduction par rideau qui consiste à transporter un substrat (12) en aval (D) traversant une zone d'égouttage (14) et à heurter ledit substrat (12) avec un rideau en chute libre (16) dans la zone d'égouttage suivant un angle aigu (?). Le rapport de force (Re) du rideau (16) au niveau de la zone d'égouttage (16)excède environ 5,25 (par exemple environ 5,50, environ 6,00, environ 6,50, environ 7,00, environ 7,50, et/ou environ 8,00). Ledit procédé peut servir avec un rideau (14) ayant un débit massique élevé (Q*?) et/ou une viscosité faible (?).
Author WANG, CHUNHWA
FERMIN, ROBERT, J
JANSEN, ALEXANDER, A
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FERMIN, ROBERT, J
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JANSEN, ALEXANDER, A
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Snippet A curtain coating method comprising the steps of conveying a substrate (12) in a downstream direction (D) through an impingement zone (14), and impinging the...
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SubjectTerms 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
Title CURTAIN COATING METHOD
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