Form, fill, and seal bags and method of production
US9630375B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2013 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | Feb 18, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/186
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A form fill and seal (FFS) bag is formed at least in part from an open mesh material that includes filaments that intersect one another. At least some of the filaments are composite filaments having a carrier portion of a relatively high melting point and a bonding portion of a relatively low melting point, the bonding portion of each composite filament being thermally bonded to other filaments at points of intersection. The material may be a non-woven fabric that contains at least two layers of weft filaments that may be bordered on one or both sides by a layer of warp filaments. When compared to other open mesh materials, the open mesh material disclosed herein has a superior combination of some or all of high strength, light weight, high dimensional stability, and openness. Also disclosed herein are methods of making such a bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.