PURPOSE: To simultaneously open an outer package carton and an inner bag stably and neatly with uniform weak force.
CONSTITUTION: In a bag in carton comprising an outer package carton 1 and an inner bag 10 comprising a laminated film, a back seal of the inner bag seals opposite side ends into a sawtooth form with two long and short margin pieces left on a side end of the laminated film. An outer face of the short margin piece 11 is adhered to an inner face of an unsealing piece 2 of the outer package carton while an inner face of the long margin piece 12 is adhered to an inner face of a paste edge panel 8 of the outer package carton, a flaw is provided at a position corresponding to the sawtooth-formed seal of the short margin piece edge and the long margin piece edge, and a sawtooth-like peeling layer is formed on an inner face of the innermost layer of the laminated film of the sealed part.
IIJIMA ATSUSHI
HONDA MASAHIKO
Next Patent: PAPER PACKAGE