BAG AND A METHOD OF MANUFACTURING A BAG
A method of making a bag by engaging an inverted zipper assembly with a first panel of a polymeric tube, bonding the first panel and the zipper assembly to form a seal therebetween, folding over a stepped end of the tube onto the zipper assembly; and bonding the stepped end and the zipper assembly to form a seal therebetween.
1 . A method of making a bag, comprising:
overlapping an inverted zipper assembly with a first panel of a polymeric tube;
bonding the zipper assembly and the first panel to form a seal therebetween;
folding over a stepped end of the tube to overlap the inverted zipper assembly; and
bonding the inverted zipper assembly and the stepped end to form a seal therebetween.
2 . The method of claim 1 , comprising:
bonding the inverted zipper assembly to a portion of the first panel, wherein the portion of the first panel is adjacent the stepped end.
3 . The method of claim 1 , comprising:
creasing the tube to provide a crease; and
bonding the zipper assembly to a portion of the first panel, wherein the portion of the first panel is between the crease and an edge of the first panel adjacent the stepped end.
4 . The method of claim 1 , comprising:
melting surfaces of the first panel and the zipper assembly with hot air, followed by bonding the zipper assembly and the first panel to form a seal therebetween; and
melting surfaces of the stepped end and the zipper assembly with hot air, followed by bonding zipper assembly and the stepped end to form a seal therebetween.
5 . The method of claim 1 , comprising:
melting surfaces of the first panel and the zipper assembly with a hot bar and bonding the zipper assembly and the first panel to form a seal therebetween; and
melting surfaces of the stepped end and the zipper assembly with a hot bar and bonding the zipper assembly and the stepped end to form a seal therebetween.
6 . The method of claim 1 , comprising:
contacting the surfaces of the first panel and the zipper assembly and melting the surfaces of the first panel and the zipper assembly with ultrasonic energy to bond and form a seal therebetween; and
contacting the surfaces of the stepped end and the zipper assembly and melting the surfaces of the stepped end and the zipper assembly with ultrasonic energy to bond and form a seal therebetween.
7 . The method of claim 1 , comprising:
bonding the zipper assembly and the first panel prior to folding over the stepped end.
8 . The method of claim 1 , comprising:
folding over the stepped end before bonding the zipper assembly and the first panel, followed by bonding the zipper assembly and the first panel and bonding the zipper assembly and the stepped end.
9 . The method of claim 1 , comprising:
folding over the stepped end before bonding the zipper assembly and the first panel, followed by bonding the zipper assembly to both the first panel and the stepped end.