Adhesive closure for flexible bag
AssigneeDowbrands L.P.
InventorsBrian C. Dais, Jose Porchia
Life of this patent
Estimating the term…
Abstract
A reusable adhesive closure including an adhesive strip affixed transversely across a first inner surface of a front wall of a bag at a preselected distance from the opening of the bag; and a first roughened surface strip positioned transversely across a second inner surface of a rear wall of the bag aligned on the wall opposite from the adhesive strip. The first roughened strip is an integral portion of the wall of the bag. The roughened strip is pressable against and into the adhesive strip, whereby a seal is formed by contacting the adhesive strip with the flexible flap member.
Claims15
A closure on a reclosable thermoplastic bag comprising:
- a first closure element consisting of an adhesive strip positioned transversely across a first inner surface of a first sidewall of a bag;
- a second closure element comprising an inner roughened surface strip positioned transversely across a second inner surface of a second sidewall of a bag, the inner roughened surface being an integral portion of the second sidewall, the inner roughened surface being pressable against and into the adhesive strip to form a closure.
In a reclosable thermoplastic bag having two sidewalls, each sidewall having a top edge, two opposing side edges and a bottom edge, the two sidewalls being attached together along the respective side edges and bottom edges, the sidewalls forming a mouth of the bag adjacent to the top edges of the sidewalls, each sidewalls having an inner surface and an outer surface, the inner surfaces of the two sidewalls facing each other, an improved closure comprising:
- first and second cooperating closure elements;
- the first closure element consisting of an adhesive strip positioned across the inner surface of one sidewall proximate to the top edge thereof;
- the second closure element comprising an inner roughened surface across the inner surface of the other sidewall proximate to the top edge thereof, and aligned opposite from the adhesive strip;
- the inner roughened surface being pressable against and into the adhesive strip to form the closure.
A reclosable thermoplastic bag comprising:
- first and second sidewalls being attached along opposing side edges and bottom edges thereof, the sidewalls forming a mouth of the bag adjacent to top edges of the sidewalls, each sidewall having an inner surface, the inner surfaces facing each other;
- first and second cooperating closure elements disposed along the mouth of the bag;
- the first closure element consisting of an adhesive strip positioned transversely across the inner surface of the first sidewall proximate to the top edge thereof;
- the second closure element comprising an inner roughened surface strip positioned transversely across the width of the inner surface of the second sidewall and aligned opposite from the adhesive strip, the roughened surface strip being an integral portion of the second sidewall and comprising a plurality of uniformly-shaped protuberances evenly distributed throughout the inner roughened surface strip;
- such that the inner roughened surface strip is pressable against and into the adhesive strip to form the closure.
Dependencies are inferred from the claim text.