Abstract: A method for producing an intermediate material for a cooking device according to an embodiment of the present invention comprises the steps of: repeating a cycle of applying a dispersion of a fluororesin and an inorganic filler or a dispersion of a fluororesin alone to a supporter and firing the applied dispersion so as to form a multilayered fluororesin film, followed by exfoliating the multilayered fluororesin film from the supporter to acquire the multilayered fluororesin film beforehand; providing the pre-acquired fluororesin film on a metal-substrate; and thermally compressing the fluororesin film and the metal substrate. In addition, an organic compound-containing primer or adhesive is not used in the thermocompression step.

Abstract: A cooking utensil according to the present invention includes a cooking utensil body A which is composed of a laminate including a metal substrate 1 and a fluorine resin film 2 laminated on the metal substrate 1, and the fluorine resin film 2 forms an inner surface of the cooking utensil body A, wherein the fluorine resin film 2 has a thickness 20 to 300 ?m, a thickness deviation of 0.1 to 10 ?m, and a surface roughness of 0.1 to 10 ?m. The fluorine resin film 2 is manufactured by a casting method, a cutting method, a calender method, or an extrusion molding method, thereby having uniform thickness and surface roughness. The fluorine resin film 2 has the uniform thickness and surface roughness, thereby improving non-stick characteristics.

Abstract: A breadmaking tray includes a breadmaking tray body B in which: (i) a fluorine resin film 2 having a thickness of 75 to 500 ?m is laminated on a metal substrate 1 through heat bonding; (ii) a plurality of holes h are punched; and (iii) an appearance thereof has a plate shape bent in a corrugated form, and the breadmaking tray can further include a frame A for supporting the body B. A method for manufacturing the breadmaking tray is provided. The breadmaking tray has excellent release properties since flour dough comes into contact with only the inner walls of holes h punched in the fluorine resin film having excellent release properties during a breadmaking process, without coming into contact with the inner walls of holes h punched in the metal substrate.