PURPOSE: To obtain the titled tube excellent in preservation stability of filler and in strength of adhered portion by a method wherein that the edge of the laminated film to be on the inner side of the tube is folded back outwards, the end face is directed outside, and the inside surfaces at an overlapped portion are adhered together by a hot melt.

CONSTITUTION: To the surface of the non-sealing resin film of a laminate film which comprises a film 11 of heat-resisting material on the outside and a film 12 of non-sealing resin on the outside, the hot melt 13 is applied over a width U. Then, with the opposite edge folded back downwards by a width u, the laminate film is bent into an annular shape. With the portion u on the inner side, the portion U is overlapped on the portion u to cover the latter by a width v, and the overlapped portion is sealed by a sealer S.