Method for forming biodegradable bags
US12297003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2019 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Sep 28, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W90/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method is disclosed for forming a package of a non-weldable material on a vertical form-fill-seal (VFFS) machine or a horizontal form-fill-seal (HFFS) machine. The method comprises providing a continuous web of the non-weldable material having exposed areas of adhesive. In an embodiment the method is implemented on a VFFS machine that has a fill tube designed and configured to avoid interaction with the adhesive exposing areas of the web.In a preferred embodiment the adhesive exposing areas are formed by providing a repeating pattern of sets of apertures in the web, and fully covering each set with a label that is coated with adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.