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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Format | Patent |
Language | English French |
Published |
23.03.2006
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Subjects | |
Online Access | Get full text |
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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 (?). |
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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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DocumentTitleAlternate | PROCEDE D'ENDUCTION PAR RIDEAU |
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RelatedCompanies | WANG, CHUNHWA FERMIN, ROBERT, J AVERY DENNISON CORPORATION 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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