초록 ▼

A bag having a front panel and a rear panel having respective side and bottom portions sealed together leaving an opening in the bag for access to the interior thereof. The rear panel extends beyond the opening to form a flap that can be folded over the opening. A first area of adhesive means is car

A bag having a front panel and a rear panel having respective side and bottom portions sealed together leaving an opening in the bag for access to the interior thereof. The rear panel extends beyond the opening to form a flap that can be folded over the opening. A first area of adhesive means is carried by the rear panel, i.e., the flap, and is adapted to secure the panels together to close the opening of the bag by bonding to a second area of adhesive means carried by the front panel. Each adhesive means comprises a backing bearing a layer of adhesive on one major surface thereof, and each is bonded to its respective panel by means of the second major surface of said backing, which second major surface is bonded to the material of its respective panel by means of heating, fusing, or the like.

대표청구항 ▼

A bag comprising a front panel formed of a polymeric heat-sealable material and a rear panel formed of a polymeric heat-sealable material, said front panel and rear panel having respective side and bottom portions sealed together leaving an unsealed end of said front panel, said rear panel extending

A bag comprising a front panel formed of a polymeric heat-sealable material and a rear panel formed of a polymeric heat-sealable material, said front panel and rear panel having respective side and bottom portions sealed together leaving an unsealed end of said front panel, said rear panel extending beyond the unsealed end of said front panel to form a flap foldable over said unsealed end of said front panel, said flap having disposed thereon a first area of adhesive means, said front panel having disposed thereon a second area of adhesive means coextensive with said first area of adhesive means when said flap is folded so as to close said bag, said first area of adhesive means bonded by means by heating, fusing, or the like, to said flap by means of a first backing made of polymeric heat-sealable material compatible with the material of said flap, said second area of adhesive means bonded by means of heating, fusing, or the like to said front panel by means of a second backing made of polymeric heat-sealable material compatible with the material of said front panel, said first area of adhesive means and said second area of adhesive means capable of forming a bond having a bond strength greater than. (a) the strength of the second backing-to-front panel bond, (b) the strength of the first backing-to-flap bond, (c) the tear strength of the first backing, and (d) the tear strength of the second backing.