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Class Information
Number: 162/20
Name: Paper making and fiber liberation > Processes of chemical liberation, recovery or purification of natural cellulose or fibrous material > With decortication or mechanical preparation of textile fibers
Description: Processes combined with a step of (1) subjecting a nonwood fibrous material to a mechanical attrition step to strip off the husk or outer shell or to separate the fibrous material from nonfibrous material, or (2) subjecting fibrous material to be used in textile operations to a mechanical operation to modify or facilitate the preparation of the fibers for textile use.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7399377 |
Process for singulating cellulose fibers from a wet pulp sheet |
Jul. 15, 2008 |
| 7364642 |
Recycling of latex-containing broke |
Apr. 29, 2008 |
| 7318880 |
Method for defibring recycled fiber material in a drum pulper, and a drum pulper |
Jan. 15, 2008 |
| 7005034 |
Method in connection with the production of mechanical pulp |
Feb. 28, 2006 |
| 6878236 |
Raw material for printing paper, a method for producing said raw material and a printing paper |
Apr. 12, 2005 |
| 6818099 |
Raw material for printing paper, method to produce it and printing paper |
Nov. 16, 2004 |
| 6773545 |
Method of forming and metering fluff pulp |
Aug. 10, 2004 |
| 6340408 |
Method of preparation of a fluffed pulp to be used in absorbent products |
Jan. 22, 2002 |
| 5976320 |
Method for producing paper pulp from fibers of annual plants |
Nov. 2, 1999 |
| 5267655 |
Method and apparatus for treating a gas containing aqueous fiber suspension |
Dec. 7, 1993 |
| 5074476 |
Method of manufacturing fibre material containing lignocellulose for the production of fibre boards |
Dec. 24, 1991 |
| 4889591 |
Crotalaria juncea paper pulps |
Dec. 26, 1989 |
| 4557800 |
Process of forming a porous cellulosic paper from a thermal treated cellulosic non-bonding pulp |
Dec. 10, 1985 |
| 4485646 |
Apparatus for washing fiber stock |
Dec. 4, 1984 |
| 4152197 |
Process for preparing high-yield cellulose pulps by vapor phase pulping an unpulped portion of lignocellulosic material and a partially chemically pulped portion |
May. 1, 1979 |
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