Curtain coating with dynamic surface tension control of layers

Details Curtain coating with dynamic surface tension control of layers Curtain coating with dynamic surface tension control of layers

1997-03-17

1999-02-16

Bareford, Katherine A.

Coating processes

Falling curtain of coating material utilized

118DIG4, B05D 130

Patent

active

058718214

ABSTRACT:
A method for producing light-sensitive material by using a curtain layer of coating solution. The method includes the steps of: discharging coating solution, including the light-sensitive material, from a coater die; forming a curtain layer of coating solution by causing the coating solution to fall from a die lip of the coater die in which the coating solution has at least 3 layers and a relational structure of dynamic surface tensions of the layers, satisfying the equation: of dynamic surface tension of an intermediate layer among the layers, surface tension of an outer layer among the layers; and coating a continuous support with the coating solution.

REFERENCES:
patent: H1003 (1991-12-01), Ishiwata et al.
patent: 4569863 (1986-02-01), Koepke et al.
patent: 4942068 (1990-07-01), Schweicher et al.

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