Zipper tape and bag body comprising zipper tape

A zipper tape comprising a strip-shaped base provided along the inner circumference of an opening of a bag body for accommodating a prescribed contents;

• and a male part and a female part which are provided in the strip-shaped base in a protruded manner and can be engaged with each other,
• the male part comprises:
• a head part that forms a protruded part on the opening side which protrudes from the opening to the outside of the bag body and a protruded part on the non-opening side which protrudes from the opening to the contents side;
• and a shaft part which connects the head part and the strip-shaped base;
• the female part comprises:
• a female part on the opening side and a female part on the non-opening side, each female part having an end part in the form of a hook such that it opposes to the strip-shaped base,
• the female part on the opening side is engaged with the protruded part on the opening side and the female part on the non-opening side is engaged with the protruded part on the non-opening side;
• wherein in an engagement state in which one of the male part and the female part abuts the stripe-shaped base of the other,
• the distance A between the front end part of the female part on the opening side and the top part of the protruded part on the opening side, the distance B between the front end part of the female part on the non-opening side and the front part opposing to the stripe-shaped base in the protruded part on the non-opening side, and the angle C formed by the protruded part on the non-opening side and the side surface of the shaft part connecting therewith satisfies the relationship represented by the following formulas:
• A−B≦0.20 mm
• 50°≦C≦85°