Patent ID: 8459870
Filing Date: 2013-06-11
Classification: B65D

Abstract:
1. A zipper packaging bag comprising: a packaging bag body wherein the packaging bag body comprises an aluminum foil, and a zipper provided substantially along an opening periphery of a packaging bag body, the zipper comprising: a pair of male member and a female member, the male member and the female member being engageable with each other to form an accommodating space in cooperation with the packaging bag body, the male member comprising: a belt-shaped male base element provided on the packaging bag body adjacent to the accommodating space; and a male engaging portion projecting from the belt-shaped male base element toward the accommodating space, the female member comprising: a belt-shaped female base element located at a position opposed to the belt-shaped male base element; and a female engaging portion projecting from the belt-shaped female base element, the female engaging portion disengageably engaged with the male engaging portion to form an engaging portion, the belt-shaped male base element and the belt-shaped female base element being made of a resin having a tensile modulus of elasticity in a range of 700 MPa to 1600 MPa, and the engaging portion being made of a resin having a tensile modulus of elasticity in a range of 110 MPa to 560 MPa.