Skip to Main content Skip to Navigation
Conference papers

Technological solutions to reduce the geometrical defects during the cast film process

Cyrille Sollogoub 1, 2 Yves Demay 1 Jean-François Agassant 1 
2 P2AM - Propriétés et architectures des alliages et mélanges
PIMM - Laboratoire Procédés et Ingénierie en Mécanique et Matériaux : EA4626
Abstract : The polymer cast film process induces some geometrical defects : the width reduction (neck-in defect) and the inhomogeneous decrease of the thickness distribution (edge bead defect). These defects prevent from predicting the film final dimensions and thus from a high industrial productivity. In this paper, a numerical model developed by the authors is used to test and optimize two technological solutions, aimed at reducing the geometrical defects : a localized air cooling on the edges of the film at the die exit and an "encapsulation die" which enables the extrusion of a high melt strength polymer along the outer edge of a core polymer. Numerical results are confronted with experimental investigations
Document type :
Conference papers
Complete list of metadata

Cited literature [4 references]  Display  Hide  Download
Contributor : Magalie Prudon Connect in order to contact the contributor
Submitted on : Tuesday, August 13, 2013 - 4:36:28 PM
Last modification on : Friday, August 5, 2022 - 3:33:42 PM
Long-term archiving on: : Friday, November 15, 2013 - 9:25:42 AM


Files produced by the author(s)


  • HAL Id : hal-00851358, version 1


Cyrille Sollogoub, Yves Demay, Jean-François Agassant. Technological solutions to reduce the geometrical defects during the cast film process. 22nd Annual Meeting of the Polymer Processing Society (PPS-22), Jul 2006, Yamagata, Japan. 2 p. ⟨hal-00851358⟩



Record views


Files downloads