Reclosable bag and method to make same
AssigneePoly-America, L.P.
InventorMichael A Ross
Life of this patent
Estimating the term…
Abstract
The present invention relates to improvements for shopping and merchandise bags with integral handles. Disclosed is a bag with integral handles and closure elements located below the integral handles. Further disclosed is a process for manufacturing a reclosable bag with integral handles. The handles and bag may be formed from a wave-cut polymeric tube. In addition, the handles of the bag may be formed from a wave-cut polymeric tube while the body of the bag is formed from a side-gusseted polymeric tube. The disclosed bags and methods to make such bags provide cost effective solutions for providing reclosable bags with integral handles.
Claims19
A method of forming a bag from polymeric blown film, the method comprising:
- forming a side-gusseted tube with a first machine direction,
- the side-gusseted tube having front and rear sides, the front and rear sides each having a distal edge,
- forming a partial wave-cut tube with a second machine direction,
- the partial wave-cut tube having front and rear sides, the front and rear sides each having a first side edge with a wave-cut profile and an opposing second side edge,
- affixing the front side of the side-gusseted tube to the front side of the partial wave-cut tube along the front side distal edge and the front side second edge,
- affixing the rear side of the side-gusseted tube to the rear side of the partial wave-cut tube along the rear side distal edge and the rear side second edge,
- forming a bottom seal in the side-gusseted tube to define a bag bottom,
- affixing a first closure element to an interior of the front side of the partial wave-cut tube,
- affixing a second closure element to an interior of the rear side of the partial wave-cut tube,
- the first and second closure elements affixed to the partial wave-cut tube by heat seals,
- the second side edges of the partial wave-cut tube extending generally linearly in the second machine direction,
- the first machine direction arranged generally perpendicular to the second machine direction, and
- the bottom seal generally perpendicular to the first machine direction.
A method of forming a bag from polymeric blown film, the method comprising:
- forming a side-gusseted tube with a first machine direction,
- the side-gusseted tube having front and rear sides, the front and rear sides each having a distal edge,
- forming a partial wave-cut tube with a second machine direction,
- the partial wave-cut tube having front and rear sides, the front and rear sides each having a first side edge with a wave-cut profile and an opposing second side edge,
- affixing the front side of the side-gusseted tube to the front side of the partial wave-cut tube along the front side distal edge and the front side second edge,
- affixing the rear side of the side-gusseted tube to the rear side of the partial wave-cut tube along the rear side distal edge and the rear side second edge,
- forming a bottom seal in the side-gusseted tube to define a bag bottom,
- affixing a first closure element to an interior of the front side of the partial wave-cut tube,
- affixing a second closure element to an interior of the rear side of the partial wave-cut tube, and
- the first and second closure elements affixed to the partial wave-cut tube by an adhesive.
A method of forming a bag from polymeric blown film, the method comprising:
- forming a side-gusseted tube with a first machine direction,
- the side-gusseted tube having front and rear sides, the front and rear sides each having a distal edge,
- forming a partial wave-cut tube with a second machine direction,
- the partial wave-cut tube having front and rear sides, the front and rear sides each having a first side edge with a wave-cut profile and an opposing second side edge,
- affixing the front side of the side-gusseted tube to the front side of the partial wave-cut tube along the front side distal edge and the front side second edge,
- affixing the rear side of the side-gusseted tube to the rear side of the partial wave-cut tube along the rear side distal edge and the rear side second edge,
- forming a bottom seal in the side-gusseted tube to define a bag bottom,
- affixing a first closure element to an interior of the front side of the partial wave-cut tube, the first closure element affixed in proximity to the second side edge, the first closure element extending generally in the second machine direction, and
- affixing a second closure element to an interior of the rear side of the partial wave-cut tube, the second closure element affixed in proximity to the second side edge, the second closure element extending generally in the second machine direction.
Dependencies are inferred from the claim text.