Method for producing packaging, and packaging machine
US10723096B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2014 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Jul 6, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2120/102
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for producing packaging (18) from paper material (5), in particular paper, cardboard or paperboard, said method comprising the following steps: forming packaging (18) from a blank (19) made of paper material (5), which paper material overlaps at at least one joining site (21); positioning the at least one joining site (21) between a sonotrode (2) and an anvil (3); applying the joining site (21) with a joining force in a joining force direction (6); and making the sonotrode (2) ultrasonically vibrate in order to ultrasonically weld the paper material (5) at the joining site (21), which method is characterised in that the paper material (5) is moistened, preferably on the inner sides of the joining sites (21), before forming the packaging (18) and/or while forming the packaging (18) and/or after forming the packaging (18) and/or during the ultrasonic welding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.