Process of making a multi-ply fibrous water soluble product
US10683618B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2018 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | Apr 23, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2555/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for manufacturing a water soluble product including the steps of: providing a water soluble fibrous parent continuous ply web, the parent continuous ply web extending in the cross direction between an operator edge and drive edge; cutting the parent continuous ply web in the machine direction to provide a first continuous ply web that includes the drive edge and a second continuous ply web that includes the operator edge; superposing the first continuous ply web and the second continuous ply web to form a web stack so that the operator edge and the drive edge are on opposite sides of a centerline of the web stack in the machine direction; and cutting and joining portions of the web stack to form the water soluble product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.