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An edge stiffening device for the openings of plastic bags, or the edges of sheets or similar materials comprising a band of stable, plastic material which is easily deformable by hand, said band having a longitudinally extending fold-line and being foldable into U-form. The surfaces of the band whi

An edge stiffening device for the openings of plastic bags, or the edges of sheets or similar materials comprising a band of stable, plastic material which is easily deformable by hand, said band having a longitudinally extending fold-line and being foldable into U-form. The surfaces of the band which form the inside of the U are provided with self-adhesive layers covered by releasable protective strips. The edge stiffener is plastically deformable by hand and can be used to give a plastic bag, sheet or similar material a stable edge having a desired configuration. To improve the stability of the form, the plastic band may be provided with one or more reinforcements, for example, of metal.

대표청구항 ▼

A device for stiffening the edge of the opening of a plastic bag or similar material comprising a band of stable plastic material easily stably deformable by hand, said band being provided with a longitudinally extending fold-line to facilitate folding thereof, and being foldable along its length to

A device for stiffening the edge of the opening of a plastic bag or similar material comprising a band of stable plastic material easily stably deformable by hand, said band being provided with a longitudinally extending fold-line to facilitate folding thereof, and being foldable along its length to U-form, the surfaces of said band which form the inner surfaces of the U when said band is folded to U-form being provided with a coating of tacky adhesive which will adhere to the material the edge of which is to be stiffened, said band being provided with at least one bendable reinforcement which is disposed adjacent the fold-line of the band and extended along its length, said reinforcement comprising a ductile material selected from the group consisting of a metal strip and a metal wire.