Importance

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Abstract

A coating method of forming a plurality of layers on a belt-like support continuously traveling, comprising:

a step of applying a first coating liquid onto a front surface of the support to form a lower layer on the support;a drying step of removing a solvent in the lower layer until an amount of the residual solvent reaches not more than 100 mg/m2;a step of applying a second coating liquid onto the lower layer after drying to form an upper layer; anda drying step of removing moisture of the upper layer; wherein the drying step of removing moisture of the upper layer comprises:a first drying step of removing moisture in the upper layer until a moisture content of the upper layer reaches not more than 10% of moisture at the time of application within a range in which a following conditional expression (1) is satisfied: (1) temperature (Tw) of the support≦average softening temperature (T0) of the lower layer+10° C.; anda second drying step of raising the temperature (Tw) of the support to remove remaining moisture of the upper layer.

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First Claim