SEM images and thickness of the TI[O.sub.2] film coated and sintered by (A)
Doctor blade at 450 [degrees]C/0.4[degrees]C [s.sup.-1]and (B) at 450[degrees]C (C) Spin Coating at 450[degrees]C /0.4[degrees]C [s.sup.-1] and (D) at 450[degrees]C.
Kadant Solutions, based in Auburn, MA, is a leading supplier of
doctor blades,
doctor blade holders, and doctoring systems for papermaking and other industrial processes.
For working widths above 240 cm use of a magnetic
doctor blade is recommended.
It can be applied via gravure or flexographic process with an enclosed-chamber
doctor blade.
The cells are first filled with liquids by rotating the gravure roll into a liquid pool, and then the excess liquid on the roll surface is wiped off by a
doctor blade. Finally, the remaining liquid is partly transferred from the cell to the substrate as the liquid bridges between the two moving surfaces stretch and eventually break apart.
The two methods include
doctor blade casting and flow coating.
Some methods have already existed, for example,
doctor blade, electrophoresis, spin coating, and so forth, in the laboratory, which are not convenient for rapid and mass production [4-8].
A
doctor blade scrapes sludge and debris collected on the outside of the cylinder, while an internal spray line dislodges particles blinding the screen.
"Its wide operating window makes it 'press-friendly,' and customers reported increased opacity, lower
doctor blade wear and very good cost of use," said Paul Lodewyck, director product management of Flint Group's Packaging and Narrow Web division.
UK-based United Biscuits (UB) has recently specified a new coating to significantly reduce the downtime required for the re-coating of a compression roller and a
doctor blade that are both deployed in its cake manufacturing facility.