초록 ▼

In cartons made from laminated packaging material wherein a peelably removable section of the outer ply is defined by a weakened tear line and said section is unadhered to the substrate, resistance to unauthorized tampering or removal of such section from said container is achieved by utilizing a wa

In cartons made from laminated packaging material wherein a peelably removable section of the outer ply is defined by a weakened tear line and said section is unadhered to the substrate, resistance to unauthorized tampering or removal of such section from said container is achieved by utilizing a water soluble adhesive as a laminant and including a border area of said section at the starting point of the tear outline within the area of adherence by said laminant to thus require application of moisture to said border area to dissolve said adhesive at said area before the tearing away of such section can be accomplished.

대표청구항 ▼

In a container formed from laminated packaging material which comprises a relatively rigid substrate and a more pliable outer ply adhered thereto and including a section manually removable therefrom, said section being defined by a tear outline comprising a series of spaced apart and adjacently disp

In a container formed from laminated packaging material which comprises a relatively rigid substrate and a more pliable outer ply adhered thereto and including a section manually removable therefrom, said section being defined by a tear outline comprising a series of spaced apart and adjacently disposed cuts through said outer ply, at least one of said cuts along a predetermined side of said tear outline being long enough to define the edge of a border area of sufficient size to enable a finger grip to be had thereof, said outer ply being a moisture permeable material and adhered to said substrate by water soluble adhesive in areas exclusive of said section and in the said border area of said section, said section being unadhered to said substrate in substantially the entire remaining area thereof, whereby application of moisture to said border area renders the adhesive thereon ineffective and said border area manually engageable for applying pulling force thereto to peel said section from said substrate along the said tear outline.