TY  - JOUR
A1  - Raupp, Sebastian M.
A1  - Schmitt, Marcel
A1  - Walz, Anna-Lena
A1  - Diehm, Ralf
A1  - Hummel, Helga
A1  - Scharfer, Philip
A1  - Schabel, Wilhelm
T1  - Slot die stripe coating of low viscous fluids
JF  - Journal of Coatings Technology and Research
N2  - Slot die coating is applied to deposit thin and homogenous films in roll-to-roll and sheet-to-sheet applications. The critical step in operation is to choose suitable process parameters within the process window. In this work, we investigate an upper limit for stripe coatings. This maximum film thickness is characterized by stripe merging which needs to be avoided in a stable process. It is shown that the upper limit reduces the process window for stripe coatings to a major extent. As a result, stripe coatings at large coating gaps and low viscosities are only possible for relatively thick films. Explaining the upper limit, a theory of balancing the side pressure in the gap region in the cross-web direction has been developed.
Y1  - 2018
U6  - http://dx.doi.org/10.1007/s11998-017-0039-y
SN  - 1935-3804
VL  - 15
IS  - 5
SP  - 899
EP  - 911
PB  - Springer
ER  -