PILLOW PACKAGING BAG WITH ZIPPER AND ZIPPER USED FOR PILLOW PACKAGING BAG

摘要

PROBLEM TO BE SOLVED: To provide a pillow packaging bag with a zipper including an easy-unsealing mechanism configured so that the bag is unsealed straight to trim the cut end thereof, and also the zipper is easily openable when unsealing the bag again.;SOLUTION: Regarding the easy-unsealing mechanism, the zipper 10 is inserted so that it may reach the left end 1b of the bag 1 from the V-shaped notch 9 formed at the right end 1a of the bag 1 while crossing the notch 5 of a butt-seam portion 4, and a uniaxial drawing PET film 14 is laminated as an intermediate layer on the portion of the base tape 12 of the zipper 10. Alternatively, a half cut 16 is linearly provided or perforations 17 are formed on the base tape 12 by a laser blade or laser beams. Accordingly, regarding the tearing direction of the bag, the bag can be torn straight in the uniaxial drawing direction or in the direction of the half cut 16 or the perforations 17.;COPYRIGHT: (C)2013,JPO&INPIT