Coating apparatus and coating film manufacturing method

A coating apparatus comprising:

• a die coater that supplies a coating liquid to a web which is continuously travelling, the die coater including a die main body, a manifold formed in the die main body, a slot formed in the die main body and communicating with the manifold, a lip face formed in the die main body at a tip of the slot;
• a mount that supports the die coater;
• a decompression chamber that is disposed upstream of the die coater in a web conveyance direction;
• a container that includes a guide plate guiding the coating liquid or a solvent ejected from the slot of the die coater without bringing the coating liquid or solvent into contact with the mount and the decompression chamber in a non-steady state, in which the coating liquid is not supplied from the die coater to the web, the container collecting the coating liquid or the solvent guided by the guide plate;
• and
• a liquid discharge tube that is connected to the container and discharges the coating liquid or solvent to an outside of the decompression chamber.