| 摘要 |
PROBLEM TO BE SOLVED: To provide a zipper for a plastic bag which keeps the plastic bag at a high-quality level by bonding the zipper to the plastic bag with a sufficient adhesive force and preventing the plastic bag from becoming creased due to thermal shrinkage as well as a method for manufacturing the plastic bag using the zipper. SOLUTION: The zipper 1, 1' for the plastic bag which is fitted to one side and the other side of the inside of an opening part of the plastic bag 14 and enables sealing and unsealing the opening part. Inside the zipper 1, 1', an adhesive 4a is provided an microcapsules 4 which break when the pressure of specified magnitude is applied are applied to the back of the zipper 1, 1'. |
