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A closure arrangement for a polymeric bag has a pair of opposing films joined at a fold line and perforated along the fold line. The arrangement includes a base strip, a pair of heat-resistant strips, and a peelable strip composed of peelable material. The base strip has opposing inner and outer sur

A closure arrangement for a polymeric bag has a pair of opposing films joined at a fold line and perforated along the fold line. The arrangement includes a base strip, a pair of heat-resistant strips, and a peelable strip composed of peelable material. The base strip has opposing inner and outer surfaces, and the outer surface of the base strip is securably arranged with respect to one of the pair of opposing films of the polymeric bag. The pair of heat-resistant strips are securably arranged to the inner surface of the base strip, and are spaced from each other so as to form a gap therebetween. The peelable strip includes a first portion having opposing first and second surfaces and a stem portion extending perpendicular to the first surface of the top portion. The stem portion extends into the gap between the pair of heat-resistant strips and is arranged with respect to the inner surface of the base strip. Various other closure arrangements are also disclosed.

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[ What is claimed is:] [1.] A bag comprising:first and second opposing films each having inner and outer surfaces and being joined at a fold line and being perforated along the fold line;first and second opposing base strips each having an inner and outer surface, the outer surfaces of the first and

[ What is claimed is:] [1.] A bag comprising:first and second opposing films each having inner and outer surfaces and being joined at a fold line and being perforated along the fold line;first and second opposing base strips each having an inner and outer surface, the outer surfaces of the first and second base strips being secured to inner surfaces of the respective first and second films;a pair of sealant bands firmly attached to the inner surface of said first film; anda pair of peelable bands having opposing surfaces, one of the opposing surfaces being detachably connected to the inner surface of said second base strip and the other of the opposing surfaces being firmly attached to the sealant bands to form one-time peelable seals.