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| Number | Title | Issue Date |
| 7399377 | Process for singulating cellulose fibers from a wet pulp sheet A hammermill for singulating cellulosic fibers from a wet pulp sheet includes a cylindrical housing, a feed slot with a breaker bar positioned therein and a rotor mounted for rotation in the housing. Feed rolls are provided to feed a sheet of pulp into the feed slot... | 07/15/2008 |
| 7364642 | Recycling of latex-containing broke Methods for recycling latex-containing broke are generally provided. Specifically, mechanical treatment may be employed to rework latex-containing broke for reuse in various products without the need for treatment with chemicals, such as hypochlorite, chlorine, or h... | 04/29/2008 |
| 7364640 | Chemimechanical desilication of nonwood plant materials A process for removing silica from nonwood plant materials involving both chemical and mechanical action is described. The silica-rich epidermal cells are liberated mechanically by a pre-pulping and low-consistency refining step and subsequently removed from the pul... | 04/29/2008 |
| 7318880 | Method for defibring recycled fiber material in a drum pulper, and a drum pulper The invention relates to a method for defibering recycled fiber material in a drum pulper provided with a substantially horizontal drum. Recycled fiber material and water are fed to the drum pulper and the drum of the drum pulper is simultaneously rotated. When the ... | 01/15/2008 |
| 7005034 | Method in connection with the production of mechanical pulp A method in connection with the production of mechanical pulp from a cellulose containing material wherein the material is processed in at least one refining step to produce pulp. According to the invention, the pulp is fractionated (4), after a first refinin... | 02/28/2006 |
| 6923889 | Printing paper The invention relates to coated printing paper which contains mechanical pulp and whose opacity is at least 89%, brightness at least 65% and surface roughness not more than 4.5 μm. The printing paper contains mechanical pulp at least 90 weight-% of the total fiber ... | 08/02/2005 |
| 6902649 | Enhanced fiber additive; and use The disclosure provides a process of modifying a seed based fiber (SBF) to form an enhanced fiber additive (EFA). The process includes an acid treatment step and optionally at least one fiber modification step. Preferred EFA products and uses are described. ... | 06/07/2005 |
| 6878236 | Raw material for printing paper, a method for producing said raw material and a printing paper The object of the present invention is a method for making mechanical pulp, such as thermomechanical or chemi-thermomechanical stock. The mechanical pulp is used as a raw material for printing paper, and its freeness value is 30-70 ml CSF. The stock refined by the m... | 04/12/2005 |
| 6818099 | Raw material for printing paper, method to produce it and printing paper The object of the present invention is a method for making mechanical pulp, such as thermomechanical or chemi-thermomechanical stock. The mechanical pulp is utilised as a raw material for printing paper, and its freeness value is 30—70 ml CSF. According to the met... | 11/16/2004 |
| 6773545 | Method of forming and metering fluff pulp The present invention is directed to a method and apparatus for fiberizing bales of pulp into substantially dry fibers and fiber aggregates, i.e., dry fluff, and metering the resulting dry fluff to a receptacle or other process, such as an airlaid process for making... | 08/10/2004 |
| 6340408 | Method of preparation of a fluffed pulp to be used in absorbent products A method for the preparation of cellulosic pulp capable of being defibrated (fluffed) for the manufacture of an absorbent material intended to be incorporated as a component in absorbent products. A stock of cellulosic fibres in aqueous suspension is pH-a... | 01/22/2002 |
| 5976320 | Method for producing paper pulp from fibers of annual plants A method for producing paper pulp containing fibers of annual plants or of secondary raw materials produced therefrom, whereby fiber materials are shortened to a length which permits production of a homogeneous, pumpable suspension of the shortened fiber ... | 11/02/1999 |
| 5267655 | Method and apparatus for treating a gas containing aqueous fiber suspension Method and apparatus for treating a gas containing aqueous fiber suspension in a fiber line process of a pulp mill including at least one of pulp screening, washing and bleaching includes (a) transferring the gas containing fiber suspension at a consisten... | 12/07/1993 |
| 5074476 | Method of manufacturing fibre material containing lignocellulose for the production of fibre boards A method and an apparatus is described for the manufacture of fibrous material containing ligno cellulose for the production of fibre boards by the dry process, wherein cleaned and mechanically dewatered starting material such as hacked chips, hacked shav... | 12/24/1991 |
| 4889591 | Crotalaria juncea paper pulps The present process produces a long fiber suitable for making various paper products. The long fiber is derived from Crotalaria juncea. The processing consists of a particular technique for preparing the fiber for digestion and a particular digestion sequ... | 12/26/1989 |
| 4557800 | Process of forming a porous cellulosic paper from a thermal treated cellulosic non-bonding pulp A non-bonding pulp is obtained by contacting a cellulosic pulp with a non-oxidizing gaseous medium at a temperature of at least 400° F. for a period of time greater than 3 seconds or more. When a cellulose pulp comprising at least about 10% hemicellulose... | 12/10/1985 |
| 4485646 | Apparatus for washing fiber stock Apparatus for washing fiber stock, comprising a substantially horizontally disposed rotating screen drum, means for supplying fiber stock to one end of said screen drum for passage along the screen surface through said screen drum, means for removing fibe... | 12/04/1984 |
| 4152197 | Process for preparing high-yield cellulose pulps by vapor phase pulping an unpulped portion of lignocellulosic material and a partially chemically pulped portion Process and apparatus are provided for the preparation of improved high-yield cellulose pulps, such as semichemical, chemimechanical, thermomechanical, and mechanical pulps, which comprises mechanically defibrating a mixture of particulate lignocellulosic... | 05/01/1979 |
