Curtain coating with dynamic surface tension control of layers

摘要

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: DELTA K= sigma intermediatemin- sigma outermax>/=0[mN/m] in which, sigma intermediatedmin [mN/m] represents the minimum value of dynamic surface tension of an intermediate layer among the layers, sigma outersmax [mN/m] represents the maximum value of dynamic surface tension of an outer layer among the layers; and coating a continuous support with the coating solution.