| 摘要 |
PROBLEM TO BE SOLVED: To easily remove stains such as slime and blacking occurring on a bottom or the like of a container in a composite container comprising a plastic film shrunk by heat integrally coupled outside a container made of a plastic resin layer by adding a water repellent to the plastic film. SOLUTION: To manufacture the composite container 1, first, a plastic film 1 having a predetermined percent of stretch and an average thickness is obtained by an oriented film molding machine using a resin comprising a graft compound of polypropylene containing silicon as a water repellent and polyorganosiloxane added to a polypropylene resin. Then after a container 3 having a predetermined internal volume and an average body thickness is molded by a direct blow molding machine using a polyethylene resin, a plastic film 2 is placed outside the container 3 and heated, thereby completing the composite container 1 comprising the external plastic film and the container 3 which are integrally coupled.
|
