Coating die and coating device

A coating die used to apply a coating material onto a material to be coated, the coating die comprising:

• a manifold that temporarily stores the coating material;
• a supply port through which the coating material is supplied from the outside to the manifold;
• a discharge port through which the coating material is discharged from the manifold toward the material to be coated;
• a supply passage that connects the supply port and the manifold;
• and
• a discharge passage that connects the manifold and the discharge port, wherein
• the manifold, the discharge passage, and the discharge port are longer in a first direction that intersects a discharge direction of the coating material from the discharge port,
• an outline of the manifold viewed from a second direction that intersects the discharge direction and the first direction includes a first outline part to which the discharge passage is connected and also includes a second outline part located opposite the first outline part,
• the second outline part includes, in an end region in the first direction, a first taper part tilted to be closer to the first outline part toward an end of the manifold in the first direction, and,
• when the dimension in the first direction from a connection part at which the supply passage is connected in the manifold to the end is set to 1, dimension ratio of the first taper part in the first direction is 0.4 or less,
• the supply passage and the discharge passage are arranged such that the manifold is located therebetween and are connected to the manifold such as to be shifted from each other in the second direction, and
• an outline of the manifold viewed from the first direction includes a curved part that forms a convex in a direction away from the center of the manifold, at least in a region that intersects an extended line of the supply passage.