Fastener bag and fastening device

Abstract

A fastener bag includes a packaging bag formed by heat-sealing side parts of a packaging sheet in a butt seam, and a fastening device attached to the inner surface of the packaging bag. The fastening device includes a male fastening member and a female fastening member. The male fastening member is disposed on one side of the heat-sealed butt seam of the packaging bag, and the female fastening member is disposed on the other side of the heat-sealed butt seam of the packaging bag so as to be engage with the male fastening member, and a tear-facilitating means is interposed between the male and the female fastening member. The fastener bag is capable of being opened and of being reclosed, and is suitable for use on an automatic filling and packaging machine.

1 . A fastener bag comprising: 
 a packaging bag formed by heat-sealing side parts of a packaging sheet in a butt seam; and    a fastening device attached to a part of the inner surface of the packaging bag on one side of the heat-sealed butt seam; wherein the fastening device includes separate male and female fastening members, the male and the female fastening member are disposed with a space therebetween so as to be engaged, and a tear-facilitating means is interposed between the male and the female fastening member.    
   
   
       2 . The fastener bag according to  claim 1 , wherein the tear-facilitating means is a narrow easy-to tear part formed in the packaging bag.