Package for flowable materials with foldlines reinforced by strips

Claim 1

A packaging means for containing materials which are capable of flow, comprising: a container formed from a generally rectangular packaging means blank, said blank being formed from a coated, foldable sheet material having a bottom edge, two opposing side edges, and a plurality of bending lines defined in said blank; said bending lines being restricted to a region on said blank adjacent said bottom edge thereof, a first portion of said lines terminating at first points along said bottom edge of said blank and a second, remaining portion of said lines terminating at second points remote from said edge; and a generally rectangular reinforcing strip formed of a plastic material and attached to said packaging blank along an attachment area defined thereon adjacent said bottom edge such that said strip extends over all of said bending lines and second points, but extends over only a relatively small portion of the entire area of said blank; said strip being attached so that said attachment area terminates remotely from any of said bending lines; said side edges of said blank being joined by a first sealing seam; said bottom edge then being jointed by a second sealing seam to close said container; and said bending lines being defined on said blank so that folding of said blank along said bending lines defines a region at the bottom of said container approximating a portion of a hollow block, said bending lines being restricted on said blank to the portion thereof forming said bottom block portion, and a region at the top of said container approximating a cylinder.