Abstract: A method for manufacturing a wrinkled plate which can control a shape of wrinkles formed on a surface of the wrinkled plate and a wrinkled plate which is manufactured by the method are provided. The method for manufacturing a wrinkled plate la includes the steps of: placing an unhardened clay 5 having irregularities embossed on a surface thereof on an upper surface of a rubber sheet 4 in a stretched state in an overlapping manner; forming wrinkles 2 at least on a surface of the clay 5 by shrinking the rubber sheet 4; and hardening the clay 5 by baking.

Abstract: A method of stably producing a ceramic sheet with good quality, where the tip portions of convex parts constituting numerous wrinkles on the surface of the ceramic sheet are not in contact with each other, and concave parts are open. To produce the ceramic sheet, clay is placed on the upper surface of a stretched rubber sheet, and the upper surface of the clay is covered by a surface layer made from a material that burns when the clay is baked. The rubber sheet is contracted to form wrinkles on the upper surface of the clay and the surface layer. The clay is baked and the surface layer is made to disappear by burning to obtain the ceramic sheet. Thus, the surface layer prevents the tips of the convex parts constituting the wrinkles from being in direct contact with each other.

Abstract: A method of stably producing a ceramic sheet with good quality, where the tip portions of convex parts constituting numerous wrinkles on the surface of the ceramic sheet are not in contact with each other, and concave parts are open. To produce the ceramic sheet, clay is placed on the upper surface of a stretched rubber sheet, and the upper surface of the clay is covered by a surface layer made from a material that burns when the clay is baked. The rubber sheet is contracted to form wrinkles on the upper surface of the clay and the surface layer. The clay is baked and the surface layer is made to disappear by burning to obtain the ceramic sheet. Thus, the surface layer prevents the tips of the convex parts constituting the wrinkles from being in direct contact with each other.