Wax-coated paperboard containers

A paperboard container having a wax coating on its interior surfaces, said container comprising:

• a bottom wall and a generally tubular side wall each formed from a paperboard stock that has a normally opaque visual appearance which is transformable to a translucent visual appearance when saturated with wax, said side wall being joined to said bottom wall along an interior circumferential bottom seam,
• said wax coating on said interior container surfaces being present in a greater volumetric amount along said bottom seam, and in lesser volumetric amounts on interior surfaces of said bottom wall and said side wall adjacent said bottom seam, wherein
• said paperboard stock that forms said bottom wall and said side wall is unsaturated with said lesser volumetric amounts of wax in said coating such that said normally opaque visual appearance of said paperboard stock is maintained.

A paperboard container comprising:

• a generally tubular paperboard side wall which establishes a corresponding generally tubular interior surface of said container;
• said paperboard side wall being formed of a single ply of paperboard stock that has a normally opaque visual appearance which is transformable to a translucent visual appearance when saturated with wax;
• said interior surface of said container including a fluid-impervious wax coating such that said paperboard stock of said side wall is unsaturated with wax throughout its thickness whereby said normally opaque visual appearance thereof is retained.

A liquid-impervious container comprising a tubular sidewall formed of a single-ply paperboard stock having a normally opaque appearance, and a coating of liquid-impervious wax material on interior surfaces of said tubular sidewall in an amount to impart liquid-impervious characteristics to said single-ply paperboard, yet insufficient to saturate the thickness of said single-ply paperboard, whereby said normally opaque appearance thereof is maintained.

A single-ply paperboard container comprising a coating of a liquid-impervious material on interior surfaces of said container so as to render said container impervious to liquids which are contained thereby, said coating including an initial layer of said liquid-impervious material in an amount insufficient to impart liquid-impervious characteristics to said single-ply paperboard, yet sufficient to create a barrier to saturation of said single-ply paperboard by subsequently applied layers of said liquid-impervious material, and at least one subsequently applied layer on said initial layer, said at least one subsequently applied layer imparting liquid-impervious characteristics to said single-ply paperboard.