Deinking wastepaper containing electrostatic printed ink using branched alcohol alkoxylate surfactant
US5885413A · kind A · utility
3Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1996 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Nov 15, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for the deinking of wastepaper is disclosed. The process comprises administering a sufficient amount of a branched alcohol alkoxylate surfactant to a sample of waste paper for which treatment is desired. The surfactant is effective for the flotation of the ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.