Eucalyptus biomechanical pulping process
US7008505B2 · kind B2 · utility
9Cited by
25References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2002 |
| Grant date | Mar 7, 2006 |
| Priority date | — |
| Expiry date | May 30, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H11/10
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a new process for preparing pulped wood chips for paper making, chips from a hardwood such as eucalyptus are inoculated with aliving culture of one or more white rot fungi. The fungi propagate throughout the body of the wood chip, selectively attacking the lignin of the wood without harming the cellulosic fibers. Subsequent mechanical pulpting results in reduced utilization of energy, improved strength, and reduced cooking time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.