Towards the Mastering of the Free Surface Position in Roll Coating


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This paper deals with an industrial three rolls coater. The behaviour law of the elastomer roll cover in different environments is first established in order to be taken into account in the numerical simulation of the process. Cyclic compression tests are performed and compared to the corresponding numerical simulation to precisely determine the viscoelastic parameters. With the identified parameters, a finite element simulation of the process is then performed to evaluate the meniscus stability in real contact conditions. The influence of the determined elastomer behaviour laws on the free surface position is discussed.



Main Theme:

Edited by:

F. Micari, M. Geiger, J. Duflou, B. Shirvani, R. Clarke, R. Di Lorenzo and L. Fratini




E. Szczurek et al., "Towards the Mastering of the Free Surface Position in Roll Coating", Key Engineering Materials, Vol. 344, pp. 955-962, 2007

Online since:

July 2007




[1] Carvalho MS. Effect of thickness and viscoelastic properties of roll cover on deformable roll coating flows. Chemical Engineering Science, vol. 58 (2003), pp.4323-4333.


[2] Cohu O, Magnin A. Forward roll coating of Newtonian fluids with deformable rolls: An experimental investigation. Chemical Engineering Science, vol. 52 (1997), pp.1339-1347.


[3] a] Coyle DJ. Experimental studies of flow between deformable rolls. AIChE Spring National Meeting, New Orleans, La. March (1988).

[3] b] Coyle DJ. Forward roll coating with deformable rolls: a simple one-dimensional elastohydrodynamic model. Chemical Engineering Science, vol. 43 (1988), pp.2673-2684.


[4] Adachi K, Tamura T Y, Nakamura R. Coating flows in a nip region and various critical phenomena. AIChE Journal, vol. 34(3) (1988), pp.456-464.


[5] Marcio S, Carvalho MS, Scriven E. Deformable roll coating flows: steady state and linear perturbation analysis. J. Fluid Mech., vol. 339 (1997), pp.143-172.


[6] Carrot C, Guillet J. : Viscoélasticité linéaire des polymères fondus (Techniques de l'ingénieur, AM 3-620).

[7] Saad P, Modélisation et identification du comportement non linéaire des cales en caoutchouc, Ph. D Thesis, Department of Mechanical Engineering, Ecole Centrale de Lyon, (2003).

[8] Martinez-Vega J. J, Riviere A. : Mesure de frottement interne. (Techniques de l'ingénieur, P1-310).