Zipper tape, bag, and method for producing bag
US10906701B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 5, 2017 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Jan 5, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2205/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A zipper tape includes a pair of belt-shaped bases bondable to a film of a bag body, and mutually engageable engagement portion each integrally provided to corresponding one of the belt-shaped bases. One of the belt-shaped bases includes at least two portions having different bonding strengths to the film on a side opposite a side provided with the engagement portion and between an edge of the one of the belt-shaped bases in a width direction orthogonal to a longitudinal direction to a point at which the engagement portions are provided. A bonding strength of a first portion of the at least two portions to the film may be larger than a bonding strength of a second portion to the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.