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Analysis and Design of Internal Coating Die Cavities

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Liquid Film Coating

Abstract

The purpose of the internal cavities of coating dies of all types is to distribute the coating liquid in a manner which in conjunction with the rest of the coating process produces a liquid film with uniform dimensions and properties. Whereas the constancy of feed rate and take-away speed play the biggest role in the down-web uniformity of the final film, the liquid passages internal and external to the coating die have the biggest impact on the cross-web uniformity of the coated liquid. Although cross-web nonuniformities in the liquid passages external to the coating die can drastically affect the final coating uniformity, the focus of this chapter is the influence on the cross-web uniformity of the passages internal to the coating die.

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Authors
  1. Robert B. Secor
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Editors and Affiliations

  1. Imation Corporation, Oakdale, Minnesota, USA

    Stephan F. Kistler

  2. ILFORD AG, Fribourg, Switzerland

    Peter M. Schweizer

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Secor, R.B. (1997). Analysis and Design of Internal Coating Die Cavities. In: Kistler, S.F., Schweizer, P.M. (eds) Liquid Film Coating. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5342-3_10

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  • DOI: https://doi.org/10.1007/978-94-011-5342-3_10

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-6246-6

  • Online ISBN: 978-94-011-5342-3

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