Multi-layer dryer sheet folded such that indented embossments face towards one another
US12241044B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 2021 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | Dec 1, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/46
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A dryer sheet including: a nonwoven fibrous first layer and a nonwoven fibrous second layer joined to the first layer. The first layer has a first layer interior surface. The first layer has a first layer exterior surface area. The second layer has a second layer exterior surface area. The dryer sheet includes a fabric softener composition. Part of the fabric softener composition is on said first layer interior surface and partially penetrating into said first layer. The first layer exterior surface is free from said fabric softening composition over more than about 60% of said first layer exterior surface. The second layer exterior surface is free from said fabric softening active over more than about 60% of said second layer exterior surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.