METHOD FOR PRODUCING CRYSTALLINE RESIN SHEET

摘要

A method for producing a crystalline resin sheet comprising a step for extruding crystalline resin in a sheet form from a die, a step for forming an extruded sheet by passing the extruded sheet-form crystalline resin through rolling rolls, and a step for conveying the extruded sheet in such a manner that the width direction of the surface of the extruded sheet is kept horizontal, characterized in that the step for conveying the extruded sheet is carried out by bringing the extruded sheet into contact with at least four conveyance rolls arranged in the conveyance direction of the extruded sheet, and includes a total of two or more steps including a step for bringing the upper surface of the extruded sheet into contact with the conveyance rolls in the conveyance direction and then bringing the lower surface of the extruded sheet into contact with the conveyance rolls in the conveyance direction, and/or a step for bringing the lower surface of the extruded sheet into contact with the conveyance rolls in the conveyance direction and then bringing the upper surface of the extruded sheet into contact with the conveyance rolls in the conveyance direction.