초록 ▼

An apparatus and method for applying a heat shrinkable film to a container having a right-circular, cylindrical sidewall section and at least one inwardly directed end section. A film segment is transported by a rotary vacuum drum past an adhesive station, where adhesive is applied to leading and tr

An apparatus and method for applying a heat shrinkable film to a container having a right-circular, cylindrical sidewall section and at least one inwardly directed end section. A film segment is transported by a rotary vacuum drum past an adhesive station, where adhesive is applied to leading and trailing ends of the film. Then, the film is wrapped completely around the container by the co-operative action of a vacuum drum and an arcuate roll-on pad, leaving a free-standing portion of the label extending past the sidewall section. In the overlapping ends of the film, a first seam is formed by compressive forces between the vacuum drum and the container sidewall. A second seam is simultaneously formed by the compressive force of an active label deflector on the vacuum drum, adapted to press the free-standing portion of the label ends against the end section of the container. Heat is then applied to the label, shrinking the free-standing portion upon the container\s end section.

대표청구항 ▼

A method for applying a heat shrinkable film to a container having a right-circular, cylindrical sidewall section, and at least one inwardly directed end section, comprising the steps of: a. applying an adhesive to an inner face of a leading end of the film; b. applying an adhesive to the inner face

A method for applying a heat shrinkable film to a container having a right-circular, cylindrical sidewall section, and at least one inwardly directed end section, comprising the steps of: a. applying an adhesive to an inner face of a leading end of the film; b. applying an adhesive to the inner face of a trailing end of the film; c. bringing the sidewall portion of the container into contact with said adhesively treated leading end; d. wrapping the film around the container with said adhesively treated trailing end over-lapping said leading end, forming a first compressive seam between portions of leading end trailing ends supported by the sidewall portion of the container, and leaving an unsupported, free standing portion of the film and said ends, extending beyond said sidewall section; e. forming a second compressive seam between said free standing end portions by deflecting only said end portions into compressive contact with the inwardly directed end section of the container; and, f. heating at least said free standing portion of the film, shrinking the film around the inwardly directed section of the container.