MANUFACTURING METHOD OF UPPER MEMBER USED BY BEING INTEGRALLY MOLDED WITH SHOULDER PART AND MOUTH NECK PART OF TUBE CONTAINER AND TUBE CONTAINER USING UPPER MEMBER MANUFACTURED THEREBY

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method excellent in productivity and economical efficiency of an upper member used by being integrally molded in order to enhance the gas barrier properties of the shoulder part and mouth neck part of a tube container, and the tube container excellent in gas barrier properties using the upper member manufactured by this manufacturing method. SOLUTION: A composite sheet 10 constituted by overlaying polyolefinic resin films on both sides of an aluminum foil is used in the molding of the upper member. The molding of the upper member is divided into five stages as shown by processes (2)-(6) and the composite sheet 10 is successively press-molded at the normal temperature using male and female molds to manufacture the upper member 70. Further the tube container is manufactured by inserting the upper member in the inner surfaces of the shoulder part and the mouth neck part 5 continuous to it to be integrally molded on one end of a cylindrical body part having gas barrier properties using an outside molding resin by compression molding or injection molding. COPYRIGHT: (C)2006,JPO&NCIPI