초록 ▼

A food storage and preparation bag at least one sheet of flexible sheet material assembled to form a semi-enclosed container having an opening defined by a periphery and a closure for sealing the opening to convert the semi-enclosed container to a closed container. The opening defines an opening pla

A food storage and preparation bag at least one sheet of flexible sheet material assembled to form a semi-enclosed container having an opening defined by a periphery and a closure for sealing the opening to convert the semi-enclosed container to a closed container. The opening defines an opening plane and the sheet material includes a first region and a second region being comprised of the same material composition. The first region undergoes a substantially molecular-level deformation and the second region initially undergoes a substantially geometric deformation when the sheet material is subjected to an applied elongation along at least one axis. The first region and the second region are visually distinct from one another, wherein the second region includes a plurality of raised rib-like elements and the first region is substantially free of rib-like elements.

대표청구항 ▼

[ What is claimed is:] [1.] A food storage and preparation bag comprising at least one sheet of flexible sheet material assembled to form a semi-enclosed container having an opening defined by a periphery and a closure means for sealing said opening to convert said semi-enclosed container to a close

[ What is claimed is:] [1.] A food storage and preparation bag comprising at least one sheet of flexible sheet material assembled to form a semi-enclosed container having an opening defined by a periphery and a closure means for sealing said opening to convert said semi-enclosed container to a closed container, said opening defining an opening plane, wherein said sheet material includes a first region and a second region being comprised of the same material composition, said first region undergoing a substantially molecular-level deformation and said second region initially undergoing a substantially geometric deformation when said sheet material is subjected to an applied elongation along at least one axis, wherein said first region and said second region are visually distinct from one another, wherein said second region includes a plurality of raised rib-like elements and said first region is substantially free of said rib-like elements.