Slot coating is a common method in the manufacture of a wide variety of products. It belongs to a class of coating method known as premetered coating : The thickness of the coated liquid layer in principle is set by the flow rate fed to the die and the speed of the substrate moving past, and is independent of other process variables. M. S. Carvalho - Google Scholar Citations Low-flow limit in slot coating of dilute solutions of high molecular weight polymer. ... Slot coating of mildly viscoelastic liquids. OJ Romero, LE Scriven, MS Carvalho. ... Forward roll coating flows of viscoelastic liquids. GA Zevallos, MS Carvalho, M Pasquali. FUNDAMENTALS OF SLOT COATING PROCESS - pstc.org Slot coating is commonly used in the manufacturing of adhesive and magnetic tapes, specialty papers, optical films, and many other products. In this process, the coating liquid is pumped to a coating die in which an elongated chamber distributes it across the width of a narrow slot through which the flow rate Low‐flow limit in slot coating: Theory and experiments ...
Simulation of viscoelastic coating flows with a…
(PDF) Effect of Mild Viscoelasticity in Slot Coating's Low ... In this work, the low-flow limit of slot coating of mildly viscoelastic liquids, that can be represented by Boger liquids, is examined by solving the conservation of momentum and continuity ... Journal of Non-Newtonian Fluid Mechanics | Vol 138, Issues ... select article Slot coating of mildly viscoelastic liquids. Research article Full text access Slot coating of mildly viscoelastic liquids. O.J. Romero, L.E. Scriven, M.S. Carvalho. Pages 63-75 Download PDF. Article preview. select article Non-isothermal viscoelastic numerical model of the cast-film process. Operability windows in viscoelastic slot coating flows ... The viscoelastic-capillary model to predict approximately coating windows for the stable operations of viscoelastic coating liquids is derived using a lubrication approximation in slot coating processes.
Operability window of slot coating using viscocapillary model ...
The e ect of shear-thickening on the stability of slot-die coating Sunilkumar Khandavallia, Jonathan P. Rothstein;a aMechanical and Industrial Engineering, University of Massachusetts Amherst, MA 01003 USA Abstract Slot die coating is an economical roll-to-roll processing technique with potential to revolutionize the fabri-
In this work, the low-flow limit of slot coating of mildly viscoelastic liquids, that can be represented by Boger liquids, is examined by solving the conservation of momentum and continuity ...
In this work, the low-flow limit of slot coating of mildly viscoelastic liquids, that can be represented by Boger liquids, is examined by solving the conservation of momentum and continuity ...
understand the role of viscoelasticity on the stability of slot coating. To further examine the viscoelastic effect, results for flow computations of the low flow limit of slot coating is also pre-sented. The low-flow limit is the minimum thickness that can be coated at a given substrate speed while maintaining a uni-form coating [2,12,23,32 ...
Investigation of ink transfer in a roller-reversal imprint process. Weitao Jiang 1, Hongzhong Liu 1,2, Yucheng Ding 1, Yiping Tang 1, Yongsheng Shi 1, Lei Yin 1 and Bingheng Lu 1. Published 19 December 2008 • 2009 IOP Publishing Ltd Journal of Micromechanics and Microengineering, Volume 19, Number 1 M. S. Carvalho - Google Scholar Citations This "Cited by" count includes citations to the following articles in Scholar. ... Slot coating of mildly viscoelastic liquids. OJ Romero, LE Scriven, MS Carvalho. Flow Control and Die Design in Patch Slot Coating - ISCST transient velocity and pressure profiles inside the die have been compared for the patch slot coating applications. As the second case, flow dynamics of both Newtonian and non-Newtonian liquids in patch slot coating mode has been focused for its optimal process design. Coating liquids are intermittently coated on Fundamentals of Slot Coating Process - AIMCAL slot coating process – fundamentals slot coating is used in the manufacturing process of many different products pre-metered method: thickness is set by flow rate flow uniformity in the coating bead is strongly affected by operating parameters
Forward Roll Coating Flows Of Viscoelastic Liquids Moving Boundaries VII. Forward Roll Coating Flows Of Viscoelastic Liquids .For Newtonian liquids, the stability of the film-split flow is determined by the competition of capillary forces and viscous forces: the onset of meniscus nonuniformity is marked by a critical value of the capillary number. Properties of Matter: Liquids | Live Science