Abstract: A bottom for a paper cup is formed by advancing a punch against a paperboard web to push the web against a cutting edge which cuts out a circular cup bottom blank from the web. The punch is kept in a forward state to clamp an outer peripheral portion of the blank immovably against a surface of a sleeve. A reciprocable draw is advanced against a center portion of the blank to push the center portion into a circular opening of the sleeve while maintaining the clamping force, to cause the center portion of the blank to become stretched. The clamping force is then progressively released to permit the outer peripheral portion to enter the opening and become bent to form a lip extending at a substantially right angle. The lip is compressed within a gap formed between the draw and a surface of the opening. Because of the stretching of the blank, pleats formed in the lip are only in the form of micropleats that are flattened in a non-folded over state.

Abstract: A heat-insulating container having an outer surface laminate of foamed thermoplastic synthetic resin such as low density polyethylene is configured to facilitate unwrapping of the container brim so that the container can be used with under-the-brim promotional concepts and the like that require the brim to be unwrapped. The container is fabricated from a body member having an outside surface laminate of foamed polyethylene, and a bottom panel member, with the body member and the bottom panel member being bonded to one another at an interface between a portion of the inside surface of the body member and the upper surface of the bottom panel member. An uppermost region of the body member is curled to form a circumferentially extending brim. A first circumferential portion of the brim being bonded to the outside surface laminate of foamed polyethylene and a second circumferential portion of the brim being unbonded to the outside surface laminate of foamed polyethylene.

Abstract: A bottom for a paper cup is formed by advancing a punch against a paperboard web to push the web against a cutting edge which cuts out a circular cup bottom blank from the web. The punch is kept in a forward state to clamp an outer peripheral portion of the blank immovably against a surface of a sleeve. A reciprocable draw is advanced against a center portion of the blank to push the center portion into a circular opening of the sleeve while maintaining the clamping force, to cause the center portion of the blank to become stretched. The clamping force is then progressively released to permit the outer peripheral portion to enter the opening and become bent to form a lip extending at a substantially right angle. The lip is compressed within a gap formed between the draw and a surface of the opening. Because of the stretching of the blank, pleats formed in the lip are only in the form of micropleats that are flattened in a non-folded over state.