초록

A package made of a flexible laminate has a heat-fusible seal of a strength sufficient to retain vacuum within the package and to withstand handling, but capable of being broken by hand manipulation.

대표청구항 ▼

A package comprising a body member having side and bottom walls, said body member comprising a flexible laminate having a barrier ply and a sealable ply, said body member having a mouth portion and a hand-peelable seal for said mouth portion, said seal comprising a heat-fusible plastic polymeric coa

A package comprising a body member having side and bottom walls, said body member comprising a flexible laminate having a barrier ply and a sealable ply, said body member having a mouth portion and a hand-peelable seal for said mouth portion, said seal comprising a heat-fusible plastic polymeric coating so constructed and arranged as to have, when sealed, strength sufficient to retain vacuum within said package and to withstand stress attendant handling and shipping of said package, the strength of said seal being such that said seal may be broken by hand manipulation, and said side walls providing gusset portions for said mouth portion, said heat-fusible coating being applied to the inner surface of said body member at said mouth portion, said hand peelable seal encompassing said gusset portions as well as the other portions of said mouth portion.