Patent · US Active

Method for forming biodegradable bags

US12297003B2 · kind B2 · utility

0Cited by
3References
15Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 27, 2019
Grant dateMay 13, 2025
Priority date
Expiry dateSep 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.