a thin sheet having a low rigidity is drawn while being depressed over the radiused corner of a die by elastic force or hydrostatic force to obtain a formed article whose sidewall part and flange part have no wrinkles . the force is applied through an annular rigid body on which elastic is exerted . the hardness of the rubber is preferably approximately 70 to 85 in accordance with astm d 2240 durometer a . a laminate not more than about 200 μm in thickness and consisting of a thermoplastic resin film , aluminum foil and a heat - sealable resin film is drawn into a formed article or a container which is light in weight and suitable for containing foods , for instance .