DRIPPER

PROBLEM TO BE SOLVED: To provide a dripper that facilitates a separation of the opening of a bag after a content is stored through a cylindrical paper body from the outside of the cylindrical paper body and helps form a separable adhesion portion whose separation force is uniform when it is to be separated. SOLUTION: In the dripper wherein the bag having a filtering function is inserted into the cylindrical paper body of a rectangle in plan view that is made up of a pair of side wall plates having folding portions on both side edges and the facing portions in the near centers of the opening edge of the bag are pasted to the near center of the one opening edge of the cylindrical paper body, and the opening of the bag is separably closed after the content is stored. Shape retaining means are provided in the positions where the pair of side wall plates of the cylindrical paper body face each other and at least one side edge of the cylindrical paper body is fastened to one of the pair of the side wall plates and a margin flap is continuously connected to the other of the pair of the side wall plates. The width of the margin flap is reduced to ensure that no margin flap exists at least in one of the opening edge sides of the cylindrical paper body. COPYRIGHT: (C)2004,JPO&NCIPI