Use of surfactants having an HLB less than 10 in the deinking of dry toner electrostatic printed wastepaper
US5248388A · kind A · utility
16Cited by
17References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1992 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Apr 20, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for deinking dry toner electrostatic printed wastepaper is disclosed. The method comprises administering a sufficient amount of a surfactant with a hydrophile/lipophile balance of from about 0.5 to 10.0 to a sample of electrostatic printed wastepaper for which treatment is desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.