Use of a surface-reacted calcium carbonate in tissue paper, process to prepare a tissue paper product of improved softness, and resulting improved softness tissue paper products
US8252142B2 · kind B2 · utility
12Cited by
13References
25Claims
0Family size
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Key dates
| Filing date | Oct 28, 2008 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Jan 15, 2029 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/002
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to the use of a surface-reacted natural calcium carbonate as filler in tissue paper products, to a process to prepare tissue paper products, and to a tissue paper product featuring an improved softness, wherein said surface-reacted natural calcium carbonate is the reaction product of a natural calcium carbonate with an acid and carbon dioxide, which is formed in situ by the acid treatment and/or supplied externally.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.