Coating method and apparatus

Details Coating method and apparatus Coating method and apparatus

1983-04-15

1984-12-25

Lawrence, Evan K.

Coating processes

Miscellaneous

118410, 118411, B05D 126, B05C 3132

Patent

active

044904185

ABSTRACT:
A slide bead coating method and apparatus for applying a coating solution onto an advancing web includes an air compressed chamber for keeping a lower side of a solution bead in a pressure-applied condition to produce a difference in pressure between the upper side and the lower side of the solution bead to stabilize the bead. A coating solution which has a low viscosity and good wetting properties can thus be applied onto the web at high speeds and in a thin layer form, and a so-called bead-dropping phenomenon is avoided. Therefore, the preparation of a layer for photo-sensitive materials is facilitated.

REFERENCES:
patent: 3916043 (1975-10-01), Fowble

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