Influence of the flow field in curtain coating onto a prewet substrate

Jeremy Marston; Mark Simmons; Stephen Decent; SP Kirk

doi:10.1063/1.2378562

Influence of the flow field in curtain coating onto a prewet substrate

Jeremy Marston, Mark Simmons, Stephen Decent, SP Kirk

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Abstract

The onset of air entrainment for curtain coating onto a surface prewetted with the coating fluid was studied. The substrate used was a polished, scraped steel wheel and coating was performed over ranges of dimensionless parameters observed in commercial coating processes (Reynolds number, 0.14 <Re=rho Q/mu <33.02; Capillary number, 0.19 <Ca=mu U/sigma <25.07). The substrate velocity for the onset of air entrainment was obtained as a function of the curtain flow rate per unit width of curtain (1 <Q <9 cm(2) s(-1)), fluid dynamic viscosity (0.0326

Original language	English
Pages (from-to)	112102-10
Number of pages	9
Journal	Physics of Fluids
Volume	18
Issue number	11
DOIs	https://doi.org/10.1063/1.2378562
Publication status	Published - 1 Jan 2006

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abstract = "The onset of air entrainment for curtain coating onto a surface prewetted with the coating fluid was studied. The substrate used was a polished, scraped steel wheel and coating was performed over ranges of dimensionless parameters observed in commercial coating processes (Reynolds number, 0.14 <Re=rho Q/mu <33.02; Capillary number, 0.19 <Ca=mu U/sigma <25.07). The substrate velocity for the onset of air entrainment was obtained as a function of the curtain flow rate per unit width of curtain (1 <Q <9 cm(2) s(-1)), fluid dynamic viscosity (0.0326 ",

author = "Jeremy Marston and Mark Simmons and Stephen Decent and SP Kirk",

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N2 - The onset of air entrainment for curtain coating onto a surface prewetted with the coating fluid was studied. The substrate used was a polished, scraped steel wheel and coating was performed over ranges of dimensionless parameters observed in commercial coating processes (Reynolds number, 0.14 <Re=rho Q/mu <33.02; Capillary number, 0.19 <Ca=mu U/sigma <25.07). The substrate velocity for the onset of air entrainment was obtained as a function of the curtain flow rate per unit width of curtain (1 <Q <9 cm(2) s(-1)), fluid dynamic viscosity (0.0326

AB - The onset of air entrainment for curtain coating onto a surface prewetted with the coating fluid was studied. The substrate used was a polished, scraped steel wheel and coating was performed over ranges of dimensionless parameters observed in commercial coating processes (Reynolds number, 0.14 <Re=rho Q/mu <33.02; Capillary number, 0.19 <Ca=mu U/sigma <25.07). The substrate velocity for the onset of air entrainment was obtained as a function of the curtain flow rate per unit width of curtain (1 <Q <9 cm(2) s(-1)), fluid dynamic viscosity (0.0326

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DO - 10.1063/1.2378562

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VL - 18

SP - 112102

EP - 112110

JO - Physics of Fluids

JF - Physics of Fluids

IS - 11

ER -

Influence of the flow field in curtain coating onto a prewet substrate

Abstract

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