Cold-stretched drawstring trash bag
AssigneePoly-America, L.P.
InventorBrad A. Cobler
Life of this patent
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Abstract
The present invention is directed to a drawstring bag comprised from a first panel and a second panel. The first panel and the second panel are joined along a first side, a bottom, and a second side. The first panel and the second panel thereby define an upper opening of the bag. The drawstring bag may further comprise a first hem located along the upper opening of the bag in the first panel and a first drawstring may be disposed within the first hem. The first drawstring may be manufactured from a drawtape film subjected to a cold-stretch process.
Claims20
A drawstring bag comprising:
- a first panel and a second panel, the first panel and the second panel joined along a first side, a bottom, and a second side, the first panel and the second panel thereby defining an upper opening of the bag,
- a first hem located along the upper opening of the bag in the first panel,
- a first drawstring disposed within the first hem,
- the first drawstring made from a stretched drawtape film,
- the stretched drawtape film made from an un-stretched drawtape film subjected to a cold-stretch process,
- the stretched drawtape film having a tensile strength at yield at least 25 percent greater than the un-stretched drawtape film, and
- the stretched drawtape film having an elastic recovery at least 10% greater, at 20% elongation, than an elastic recovery of the un-stretched drawtape film.
A drawstring bag comprising:
- a first panel and a second panel, the first panel and the second panel joined along a first side, a bottom, and a second side, the first panel and the second panel thereby defining an upper opening of the bag,
- a first hem located along the upper opening of the bag in the first panel,
- a first drawstring disposed within the first hem,
- the first drawstring made from a stretched drawtape film,
- the stretched drawtape film made from an un-stretched drawtape film subjected to a cold-stretch process, and
- the stretched drawtape film having an elastic recovery at least 10% greater, at 20% elongation, than an elastic recovery of the un-stretched drawtape film.
A drawstring bag comprising:
- a first panel and a second panel, the first panel and the second panel joined along a first side, a bottom, and a second side, the first panel and the second panel thereby defining an upper opening of the bag,
- a first hem located along the upper opening of the bag in the first panel,
- a first drawstring disposed within the first hem,
- the first drawstring made from a stretched drawtape film comprising a blend of LLDPE and LDPE, the blend at least 85% by weight of the first drawstring,
- the stretched drawtape film made from an un-stretched drawtape film subjected to a cold-stretch process, the cold stretch process including a stretching step and a relaxation step,
- the stretched drawtape film having a tensile strength at yield at least 25 percent greater than the un-stretched drawtape film, and
- the stretched drawtape film having an elastic recovery at least 10% greater, at 20% elongation, than an elastic recovery of the un-stretched drawtape film.
Dependencies are inferred from the claim text.