<；P>；PROBLEM TO BE SOLVED: To provide a method for processing a sheet and a device for joining the sheet capable of highly precisely and stably performing a heat seal processing and/or cutting of an elastic member. <；P>；SOLUTION: The method for processing the sheet is the method for processing the sheet for performing the processing with respect to the sheet between two rolls 7A, 8 oppositely disposed. The processing with respect to the sheet is at least one of the press of the sheet, the heat seal between sheets, and the cutting of an elastic member disposed between sheets, and the processing is performed with respect to the sheet while the temperature of the outer peripheral part of at least one side roll 8 is individually controlled at a plurality of heating areas disposed in the axial direction of the roll. <；P>；COPYRIGHT: (C)2010,JPO&INPIT
