Abstract: A multi-compartment reclosable bag that includes closures that effectively separate the compartments' contents and reduces accidental mixing is described. In addition, perforations in the bag facilitate selective dispensing of a portion of the bag's contents. The reclosable bag includes first and second panels joined along their side edges. An upper closure comprises a male profile having opposing first and second barbs. The first barb is substantially longer than the second barb. An intermediate closure is positioned between the upper closure and a bottom edge of the bag. The intermediate closure comprises a male profile having opposing third and fourth barbs. The third barb is substantially longer than the fourth barb. The first barb is oriented downwardly and the third barb is oriented upwardly for reducing accidental opening of the closures.

Abstract: The present invention provides reclosable plastic bags that a laboratory worker wearing gloves can open safely without the use of any tool or utensil and without increasing the risk of contact between the contents of the bag and the user. The reclosable plastic bags of the present invention may be made from an extruded plastic bag film web that may be cut or otherwise formed into a bag comprising a first wall on which a first closure profile element is disposed and a second wall on which a second closure profile element is disposed. On either wall or both walls, below the closure profile element, the plastic film web may be formed into subsections having different thicknesses. One of the subsections may be thinner cross-section, formed of a thinner bag film web, thus creating a “tear zone” that may have a substantially linear, not substantially cross-linked, molecular alignment.

Abstract: A bag having tamper-evident features including an adhesive flap foldable to cover the mouth of the bag to deter and indicate tampering with the contents. Indicia on the bag are visibly altered by attempts to release the adhered flap. A tear zone can be provided to facilitate detachment of a portion of the bag without cutting. Reclosable closure elements also can be provided.