Sheet manufacturing method and sheet manufacturing die

摘要

An object of the present invention to provide a sheet manufacturing method and a sheet manufacturing die, in which a process of extruding a molten material from the die (4) and winding it around a cooling roller (5) can be performed at a high speed such as 60 m/min or more, and with which a sheet having a uniform thickness and a smooth surface can be obtained. In order to effectively charge the sheet with static electricity, the distance between paths (23,24) of product portion and end portions of the sheet from a die (4) to a cooling roller (5) is reduced by adjusting the temperature of the sheet at the end portions thereof. The die (4) is constructed such that the sheet is not influenced by deformation of a slit formed in the die (4), which is caused by heat expansion of the die (4) and adjustment operations.