PROBLEM TO BE SOLVED: To provide a method for producing a sheet-welded body the sealed edge part of which is made excellent in flexibility and touch and which has practically satisfactory welding strength.SOLUTION: The method for producing the sheet-welded body comprises: a preliminarily holding step 1) of disposing a belt-like sheet laminate on the outside surface of a supporting member and holding the belt-like sheet laminate in a pressurized state an irradiation step 2) of irradiating the sheet laminate to be held in the pressurized state with a laser beam from the inside surface side of the supporting member through a light passage part to segment the sheet member and a subsequently holding step 3) of holding the segmented sheet laminate, after irradiation of the laser beam is completed, on the outside surface of the supporting member while keeping the pressurized state.COPYRIGHT: (C)2014,JPO&INPIT【課題】シール縁部の柔軟性、肌触りに優れ、且つ実用上十分な融着強度を有するシート融着体の製造方法を提供すること。【解決手段】1)帯状のシート積層体を支持部材の外面上に配し、加圧状態で保持する前保持工程と、2)前記加圧状態で保持されている前記シート積層体に対して、該支持部材の内面側から光通過部を介してレーザー光を照射して分断する照射工程と、3)前記レーザー光の照射終了後、分断された前記シート積層体を、前記支持部材の外面上にて前記加圧状態を維持したまま保持する後保持工程とを有する。【選択図】図1
