| 摘要 |
PROBLEM TO BE SOLVED: To provide a safety sandwich wrapping bag wherein the bag can be easily opened by a one-touch operation, a shape of the bag when wrapping can be kept after opening so that uneaten sandwiches can be received and kept hygienic, the bag can be manufactured at a low cost without using a cut tape, a uniaxially stretched film having directionality in cleavage or a special sealing adhesive tape, and virgin-proofness is assured when opening. SOLUTION: A surface film and a rear film which are approximately trapezoidal are laminated, upper rims and both side rims of both films are connected with each other, triangular sandwiches are put in from a lower end opening, and a lower part of the films is folded from four sides and closed by an adhesive tape for wrapping. At least either the surface film or the rear film is formed wherein an upper end of a medium stage film is overlaid on the inside on a lower end of an upper stage film for connection and further an upper end of a lower stage film is overlaid on the outside on a lower end of the medium stage film. In addition, a required cut on the upper end of the lower stage film is provided to form a tear-open tab, which can be pinched to tear the lower stage film toward the lower end of the bag. |
