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US 6,749,913 B2Granted
Stock material for container body of insulating paper container, insulating paper container and process for making them
AssigneeSanyo Pax Kabushiki Kaisha
InventorsHiromi Watanabe, Isao Kuwahara
Life of this patent
Estimating the term…
Abstract
An insulating paper container's body has a low m.p. thermoplastic synthetic resin film laminated on its outer wall surface and a compatibly expansile ink applied to the outer surface either as a primer or as indicia to provide stock material improved in its printability for bar codes or the like as well as in its insulating property. In addition there is provided a process for making such stock material.
Claims60
Stock material for a container body of an insulating paper container, comprising:
- a base paper;
- a first thermoplastic synthetic resin film laminated on an inner wall surface of said base paper;
- a second thermoplastic synthetic resin film laminated on an outer wall surface of said base paper wherein said second thermoplastic synthetic resin film is expandable by heat treatment;
- and
- an ink which expands commensurately with the expansion of said second thermoplastic film applied on an outer surface of the second thermoplastic resin film,
- the outer surface of the second thermoplastic film being printed with indicia using separately prepared ink.
3 more elements
An insulating paper container comprising:
- a container body and a bottom wall;
- a first thermoplastic synthetic resin film laminated on an inner wall surface of a base paper of said container body and said bottom wall;
- a second thermoplastic synthetic resin film laminated on an outer wall surface of said base paper of said container body;
- and
- an ink which expands commensurately with expansion of said second thermoplastic film applied on an outer surface of the second thermoplastic resin film so that said ink follows the expansion of said second thermoplastic synthetic resin film;
- wherein said second thermoplastic synthetic resin film is expanded and the outer surface of the second thermoplastic film is printed with indicia using separately prepared ink.
3 more elements
Dependencies are inferred from the claim text.