Full perimeter conforming liner

In combination, a full perimeter conforming liner installed within and lining and engaging the full perimeter of an inside surface of a self-supporting container, the container comprising:

• a plurality of joined vertical container walls, at least two opposing ones of said walls being of a first identical length, two other opposing ones of said walls being of a second identical length, each adjacent two of said walls defining a vertical corner, and all of the container walls have approximately the same predetermined height;
• and
• the full perimeter conforming liner comprises:
• at least two first panels of film material having a length which is greater than said first identical length of the container walls;
• at least two second panels of film material having a length which is greater than said second identical length of the container walls;
• each of said first and second panels of film material having a selected height that is greater than the predetermined height of the container walls;
• said panels of film material having joined-together adjacent edges thereof to form a sleeve-like member having an unsealed mouth and in which first panels alternate with second panels;
• a first conforming seal spaced closely laterally from a first one of said adjacent edges, said first conforming seal sealing one of said first panels to one of said second panels to define a first surplus film section between said first conforming seal and said first adjacent edge;
• a second conforming seal spaced closely laterally from a second one of said adjacent edges, said second conforming seal sealing said second panel having the first conforming seal to another of said panels of film material to define a second surplus film section between said second conforming seal and said second adjacent edge, the first and second conforming seals being spaced apart from each other by a distance substantially the same as said first identical length of the container walls;
• a third conforming seal spaced closely laterally from a third one of said adjacent edges, said third conforming seal sealing said panel having the second conforming seal to another of said panels of film material to define a third surplus film section between said third conforming seal and said third adjacent edge, the second and third conforming seals being spaced from each other by a distance substantially the same as said second identical length of the container walls;
• a fourth conforming seal spaced closely laterally from a fourth one of said adjacent edges, said fourth conforming seal sealing one of said second panels to said first panel having the first conforming seal to define a fourth surplus film section between said fourth conforming seal and said fourth adjacent edge;
• each of the conforming seals having a length that is less than said selected height of said panels of film material, said length of each conforming seal also being approximately equal to the predetermined height of the container walls;
• a cuff portion that extends in one direction between said adjacent edges, and said cuff portion extends in another direction from approximately an end of each of said conforming seals to said unsealed mouth, said cuff portion being substantially free of said conforming seals;
• and
• a lining surface of the conforming liner, said lining surface excludes said cuff portion and is defined by said panels of film material and includes each of said first, second, third and fourth conforming seals, said lining surface excludes said first second, third and fourth surplus film sections, and said lining surface engages the full perimeter of the self-supporting container such that respective corner portions of the lining surface overlie and engage all of said respective vertical corners of the self-supporting container.