TECHNICAL FIELD

Embodiments described herein relate generally in trash bags having dual draw tapes, and specifically related to trash bags having an elastic drawtape and a standard drawtape comprising high density polyethylene.

BACKGROUND

There are typically two types of drawtape found in commercial consumer trash bags: standard drawtape and elastic drawtape. Both types of drawtape found in commercial liner bags have drawbacks. Liner bags with standard drawtape have good load carrying capability i.e., the drawtape strip does not elongate excessively or break upon lifting heavy weights. However, standard draw tapes are harder to open and often fail to grip to the trash can, resulting in the bag collapsing into the receptacle when a heavy weight is placed. Elastic drawtape does grip well to the trash receptacle and holds up the weight. However, elastic drawtape elongates extensively and excessively, which is an inconvenience for consumers when carrying the trash bag.

Accordingly, there is a need for trash bags which synergistically combine the benefits of the standard drawtape and the elastic drawtape.

SUMMARY

Embodiments of the present disclosure meet those needs by providing thermoplastic bags having dual drawtapes, which enable the trash bags to have a desired balance of elasticity and stiffness. Specifically, one side of the liner hem of the trash bag houses a linear low density polyethylene (LLDPE) film that provides the elastic properties for easy opening and better gripping of the liner bag onto the trash receptacle. The other side of the liner hem holds a high density polyethylene (HDPE) film for good stiffness and tensile performance when carrying the bag.

According to at least one embodiment of the present disclosure, a thermoplastic bag is provided. The thermoplastic bag comprises a first panel and a second panel, the first panel and the second panel joined together at a first side edge, a second side edge, and a bottom edge. The first panel and the second panel define an opening along respective top edges of the first panel and the second panel and define a closed end along the bottom edge. The thermoplastic bag also comprises a first hem defining a first channel, the first hem being formed along the top edge of the first panel. The thermoplastic bag further comprises a second hem defining a second channel, the second hem being formed along the top edge of the second panel. Moreover, the thermoplastic bag also comprises a first drawtape disposed within the first channel, wherein the first drawtape comprises a linear low density polyethylene having a density of from 0.902 g/cc to 0.920 g/cc, and a second drawtape disposed within the second channel, wherein the second drawtape comprises a high density polyethylene having a density of from 0.940 g/cc to 0.965 g/cc.

These and other embodiments are described in more detail in the following Detailed Description in conjunction with the appended drawings.

