Manufacturing processes for absorbent articles with improved side seam bonding
US11219556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 2018 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Apr 30, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/4878
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Methods for forming absorbent articles and side seam bonds of absorbent articles are described. In one embodiment, a method of forming absorbent articles may comprise advancing webs, coupling absorbent cores to the webs intermittently to form open absorbent article chassis, folding the absorbent article chassis, forming a first side seam bond first bond pair between a first region of the webs and a second region of the webs with a first ultrasonic horn, forming a second side seam bond of the bond pair between the first region and the second region with a second ultrasonic horn, the first bond being associated with a first absorbent article chassis and the second side seam bond being associated with a second absorbent article chassis, and cutting the folded absorbent article chassis between the first bond and the second bond to separate the first absorbent article chassis from the second absorbent article chassis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.