Package closure

Claim 2

A package comprising a receptacle containing a commodity, and having a closure comprising a pair of facing members, a portion of each of said facing members being adhered to said portion of the other facing member by means of a tape, said tape comprising a pair of sheet members facing each other, pressure sensitive adhesive between said sheet members, bonding to each other the inner surfaces of said sheet members, the outer surfaces of said sheet members being permanently bonded to the respective portions of said facing members with a bond strength greater than the bond strength between said sheet members, whereby said package may be opened by separating said sheet members and reclosed with said pressure sensitive adhesive by pressing said sheet members together, without separating said sheet members from the respective facing members.

Claim 3

A package as set forth in claim 1 in which said permanent adhesive layers are activatable by heat.

Claim 4

A package as set forth in claim 1 in which one of said sheEt members is a release paper from which said pressure-sensitive adhesive may be separated without delamination.

Claim 5

A package as set forth in claim 1 which is a pouch of flexible film, the said portions of said facing members being portions of said film.

Claim 6

A package as set forth in claim 4 in which said pouch is a tube of a single piece film, one pair of the edges of which are sealed together along a longitudinal seam, one end of said tube being permanently sealed and the other end being sealed with said tape.

Claim 7

A package as set forth in claim 5 in which the tape is sealed to said film a short space from the end of said tube, permitting insertion of fingers between the portions of said tube to which the tape is sealed to facilitate separation of said sheet members.

Claim 8

A package as set forth in claim 1 in which the package is a carton and said facing members are overlapping flaps.

Claim 9

A package comprising a receptacle containing a commodity, and having a closure comprising a pair of facing members, a portion of each of said facing members being adhered to said portion of the other facing member by means of a tape, said tape comprising a pair of sheet members facing each other, pressure-sensitive adhesive between a portion only of the inner surfaces of said sheet members, bonding to each other a portion only of the inner surfaces of said sheet members, and the portion of said inner surfaces adjacent an edge of one of said facing members being unadhered, the outer surfaces of said sheet members being permanently bonded to the respective facing members with a bond strength greater than the bond strength between said sheet members, whereby said package may be opened by separating said sheet members and reclosed with said pressure-sensitive adhesive by pressing said sheet members together, without separating said sheet members from the respective facing members, the unadhered area between said sheet members facilitating separating them and said sheet members reinforcing said facing members.

Claim 10

A package comprising a receptacle containing a commodity, and having a closure comprising a pair of facing members, a portion of each of said facing members being adhered to said portion of the other facing member by means of a tape, said tape comprising a pair of sheet members facing each other, pressure-sensitive adhesive between a portion only of the inner surfaces of said sheet members, bonding to each other a portion only of the inner surfaces of said sheet members, and the portion of said inner surfaces adjacent an edge of one of said facing members being unadhered, the outer surfaces of said sheet members being permanently bonded to the respective facing members with a bond strength greater than the bond strength between said sheet members, whereby said package may be opened by separating said sheet members and reclosed with said pressure-sensitive adhesive by pressing said sheet members together, without separating said sheet members from the respective facing members, the unadhered area between said sheet members facilitating separating them and said sheet members reinforcing said facing members.

Claim 11

A package as set forth in claim 8 in which the package is a carton and said facing members are overlapping flaps.

Claim 12

A tape for sealing together facing members of package closure means, said tape comprising a pair of sheet members facing each other, pressure-sensitive adhesive between said sheet members, bonding to each other the inner surfaces of said sheet members, and permanent adhesive layers on the outer surfaces of both of said sheet members, said permanent adhesive layers being permanently bondable to said facing members of said package closure means to form adhesive bonds stronger than the adhesive bond between said sheet members, whereby said tape may be adhered permanently between the facing members of said package closure means without exposure of the pressure-sensitive adhesive to packaging machinery, and said package may be opened by separating said sheet members and reclosed with said pressure-sensitive adhesive by pressing them together, without breaking the bonds between said sheet members and the respective facing members.

Claim 13

A tape for sealing together facing members of package closure means, said tape comprising a pair of sheet members facing each other, pressure-sensitive adhesive between said sheet members, bonding to each other the inner surfaces of said sheet members, and permanent adhesive layers on the outer surfaces of both of said sheet members, said permanent adhesive layers being permanently bondable to said facing members of said package closure means to form adhesive bonds stronger than the adhesive bond between said sheet members, whereby said tape may be adhered permanently between the facing members of said package closure means without exposure of the pressure-sensitive adhesive to packaging machinery, and said package may be opened by separating said sheet members and reclosed with said pressure-sensitive adhesive by pressing them together, without breaking the bonds between said sheet members and the respective facing members.

Claim 14

A tape as set forth in claim 10 in which said permanent adhesive layers are activatable by heat.

Claim 15

A tape as set forth in claim 10 in which one of said sheet members is a release paper from which said pressure-sensitive adhesive may be separated without delamination.

Claim 16

A tape as set forth in claim 10 in which said pressure-sensitive adhesive is between a portion only of said sheet members, another portion thereof being unbonded.

Claim 17

A packaging material for manufacture of reclosable pouches, comprising a sheet material and, adhered to said sheet material at spaced points therealong a plurality of elongated tapes, said tape comprising a pair of sheet members facing each other, pressure-sensitive adhesive between said sheet members bonding to each other the inner surfaces of said sheet members, the outer surface of one of said sheet members being permanently bondEd to said sheet material, the outer surface of the other of said sheet members being permanently bondable to said sheet material.

Claim 18

A packaging material for manufacture of reclosable pouches, comprising a sheet material and, adhered to said sheet material at spaced points therealong a plurality of elongated tapes, said tape comprising a pair of sheet members facing each other, pressure-sensitive adhesive between said sheet members bonding to each other the inner surfaces of said sheet members, the outer surface of one of said sheet members being permanently bondEd to said sheet material, the outer surface of the other of said sheet members being permanently bondable to said sheet material.

Claim 19

A packaging material as set forth in claim 14 in which the outer surface of said other sheet member is coated with a heat seal adhesive.