Process of making recycled linerboard or Kraft paper from old corrugated container
US6340407B1 · kind B1 · utility
0Cited by
16References
14Claims
0Family size
Inventor
Key dates
| Filing date | Mar 28, 2000 |
| Grant date | Jan 22, 2002 |
| Priority date | — |
| Expiry date | Mar 28, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/64
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for producing new corrugated containerboard from old corrugated container (OCC) without using expensive virgin UKP includes three new steps. These steps are separating corrugated medium from OCC before pulping linerboard, removing micro-fibrils from defibered linerboard furnish, and minimizing the loss of long fibers through reject streams of fine screens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.