COMPOSITE CONTAINER HAVING ANTI-HOT WATER PROPERTY AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a complex container having as its features a superior anti-water and anti-hot water physical properties, attaining a substantial improvement of strength at each of connected portions under hot water wetted state, capable of performing not only a boiled sterilization but also a cooking through retort sterilization processing so as to realize its anti-water property superior in anti-hot water feature. SOLUTION: There is provided a complex container having an inner container made of plastics which is covered by and connected to an outer container made of polyisocyanate resin impregnated paper. The inner container made of plastics is constituted by two or more layers of two or more types of material qualities. An adhering surface with the outer container is made of an adhering resin, a melting point of the adhering resin is 121 deg.C or more and the outer container has an anti-hot water property.