초록 ▼

There is a need for a reclosable polymeric package which minimizes air leakage in the side seal area. This need is addressed by providing a unique closure arrangement for a polymeric bag where the closure arrangement is made up of two opposing closure profiles. These closure profiles are oriented so

There is a need for a reclosable polymeric package which minimizes air leakage in the side seal area. This need is addressed by providing a unique closure arrangement for a polymeric bag where the closure arrangement is made up of two opposing closure profiles. These closure profiles are oriented so that they are each attached via their outer surfaces to the opposing films of the polymeric bag and are adapted to interlock with each other. The closure arrangement is further defined in that at least one of the closure profiles has a tapered lower flange. Preferably, the outer surface of the lower flange is tapered inwardly toward the inner surface of the lower flange. This can also be accomplished by tapering from the inner to outer surface.

대표청구항 ▼

[ What is claimed is:] [1.] A closure arrangement in combination with a polymeric bag, said bag having first and second opposing films, said closure arrangement comprising:a first closure profile attached to an inner surface of the first film, said first closure profile including a first lower flang

[ What is claimed is:] [1.] A closure arrangement in combination with a polymeric bag, said bag having first and second opposing films, said closure arrangement comprising:a first closure profile attached to an inner surface of the first film, said first closure profile including a first lower flange, said first lower flange including a tapered first lower portion having inner and outer surfaces and a first untapered upper portion having inner and outer surfaces and attached to said tapered first lower portion at a first junction, said outer surface of said tapered first lower portion tapering inwardly toward said inner surface of said tapered first lower portion, said outer surface of said tapered first lower portion being unattached to the first film and said outer surface of said first untapered upper portion being attached to the inner surface of the first film for a length extending from said first junction with said first tapered lower portion; anda second closure profile attached to an inner surface of the second film and adapted to interlock with said first closure profile.