Cellulose-based package material having an increased adsorption capacity and process for the manufacture thereof
US5491008A · kind A · utility
3Cited by
3References
7Claims
0Family size
Inventors
Key dates
| Filing date | Dec 10, 1993 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Dec 10, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31993
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a cellulose-based package material having an increased adsorption capacity and a process for its manufacture. According to the invention, the package material is treated in a permanent manner with an aqueous suspension containing a mixture of fulvic acid and humic acid or salts thereof in the wet technological phase (step) of the paper manufacture. The treatment is carried out in the substance or on the surface of the package material during processing. The wet product obtained can subsequently be dried to a paper, paper board, cardboard, corrugated paper or other cellulose-based laminated product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.