Easy-open container having improved label
AssigneeSonoco Products Company
InventorMichael T. Drummond
Life of this patent
Estimating the term…
Abstract
The invention is directed to easy-open containers for products such as dough which have an easy-open seam extending helically between the end of the container body. A helically wound outer label of flexible sheet material in strip form has at least one longitudinal edge folded onto and bonded to the main body of the label to thereby provide a reinforced longitudinal edge portion of the outer label comprising at least two layers of the flexible sheet material. The reinforced longitudinal edge portion of the outer label is positioned in bridging relation to the easy-open seam of the bodywall to thereby maintain the easy-open seam closed and provide a peel strip for exposing the easy-open seam for opening of the container body.
Claims29
An easy-open container comprising:
- a helically wound paperboard bodywall defining a substantially cylindrical container body having opposed ends, the helically wound paperboard bodywall having its edges lying adjacent each other to thereby define an easy-open seam extending helically between the ends of the container body;
- a helically wound outer label of flexible sheet material in strip form bonded to at least a portion of the outer surface of the bodywall, at least one longitudinal edge of the outer label being folded onto and bonded to the main body of the label to thereby provide a reinforced longitudinal edge portion comprising at least two layers of flexible sheet material;
- the reinforced edge portion of the outer label being positioned in bridging relation to the easy-open seam of the bodywall substantially from end to end of the container body to thereby maintain the easy-open seam closed and provide a peel strip for exposing the easy-open seam for opening of the container body.
An easy-open container comprising:
- a helically wound paperboard bodywall having its edges lying adjacent each other and defining a substantially cylindrical container body having opposed ends, the adjacent edges of the bodywall defining an easy-open seam extending helically between the ends of the container body;
- a helically wound outer label of flexible sheet material in strip form bonded to at least a portion of the outer surface of the bodywall and being defined by two longitudinal edges, at least one longitudinal edge of the outer label being folded onto and bonded to the main body of the label to thereby provide a reinforced longitudinal edge portion comprising at least two layers of flexible sheet material;
- the reinforced longitudinal edge portion of the outer label being positioned in bridging relation to the easy-open seam of the bodywall substantially from end to end of the container body with at least a portion of the reinforced edge portion being releasibly bonded to a portion of the outer label adjacent the other longitudinal edge of the outer label to thereby maintain the easy-open seam closed and provide a peel strip for exposing the easy-open seam for opening of the container body.
A method for manufacturing an easy-open container comprising the steps:
- spirally winding a continuous bodywall paperboard sheet onto a mandrel in edge adjacent relationship to form a continuous bodywall tube having a helical seam;
- providing a continuous outer label sheet material having at least one longitudinal edge folded onto and bonded to the main body of the sheet to thereby provide a reinforced longitudinal edge portion comprising at least two layers of the flexible sheet material;
- contacting at least a portion of one face of the outer label sheet with an adhesive material;
- and
- helically winding the continuous outer label sheet onto the continuous bodywall tube such that the reinforced longitudinal edge portion of the outer label flexible sheet is positioned in bridging relation to the helical seam of the continuous bodywall tube, and such that the adhesive material secures the outer label sheet to the bodywall tube.
Dependencies are inferred from the claim text.