| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
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| 10/28/2008 | CA2480796C Method for conveying, mixing, and leveling dewatered pulp prior to drying |
| 10/28/2008 | CA2431301C A system for producing dried singulated cellulose pulp fibers using a jet drier and injected steam |
| 10/23/2008 | WO2008125313A1 Method and device for treating waste paper |
| 10/23/2008 | DE102007039744A1 Pulper zum Recyceln eines Gemenges Pulper for recycling of a mixture |
| 10/22/2008 | CN201137015Y Middle concentration hydrapulpter blade wheel |
| 10/22/2008 | CN101289816A Method of producing plant fibre slurry |
| 10/16/2008 | WO2008122692A1 Injector for flotation cell |
| 10/15/2008 | EP1206481B1 Birch bark processing and the isolation of natural products from birch bark |
| 10/14/2008 | US7434695 De-inking screen |
| 10/09/2008 | DE102008016264A1 Fiber suspension flow supplying method for removing printing ink or impurity, involves sucking amounts of air in flows such that load of mixture of air and fiber mass is different at points, where mixture leaks out/exhausts from diffuser |
| 10/08/2008 | EP1309406B1 A refining segment and a refining apparatus comprising a refining disc with such refining segment |
| 10/08/2008 | CN201128837Y Hammer crusher for grass pulping material preparation |
| 10/08/2008 | CN100424260C Mechanical cold method for making paper pulp |
| 10/07/2008 | CA2458273C High defiberization chip pretreatment |
| 10/02/2008 | US20080236769 pulping waste printed paper with hydrolase enzyme capable of dislodging ink particles from the waste printed paper in an aqueous medium at a contrlled pH and removing the dislodged ink particles from the resulting pulp containing medium; recycling waste printed paper |
| 10/01/2008 | EP1296766B1 A refining segment for a rotatable refining disc, and a refining apparatus comprising a refining disc with such refining segment |
| 10/01/2008 | CN101275378A Method for producing medium-density fiberboard with tree root |
| 09/24/2008 | EP1768770B1 Method for mixing, device for the same and use thereof |
| 09/24/2008 | CN101270555A Paper-making pulping method and apparatus |
| 09/24/2008 | CN101269512A Environment protection pressed-fibre board having apple aroma and production process |
| 09/24/2008 | CN101269511A Method for producing pressed-fibre board by using apple branch and obsolete fruit tree |
| 09/24/2008 | CN101269510A Manufacturing technique for whitening type middle, high-density pressed-fibre board |
| 09/18/2008 | WO2008081028A3 Process and apparatus for waste treatment |
| 09/17/2008 | CN101265675A Environment friendly-type amortizing packaging material and method for making same |
| 09/16/2008 | CA2402109C Apparatus and method for treating milling products |
| 09/11/2008 | US20080216981 Method for Conveying, Mixing, and Leveling Dewatered Pulp Prior to Drying |
| 09/11/2008 | DE102005017943B4 Sotiervorrichtung zum Sortieren von Schüttmaterial Sotiervorrichtung for sorting of bulk material |
| 09/10/2008 | EP1966435A1 Method for preparing paper pulp from recycled paper containing contaminants |
| 09/10/2008 | CN101260635A PPDM extraction method for agriculture waste straw fibre |
| 09/10/2008 | CN101260630A Straw and/ or ryegrass raw material semi-chemical pulp preparation method |
| 09/10/2008 | CN101260629A Physical method ecological paper pulp manufacturing technique |
| 09/10/2008 | CN100417765C NITs separator |
| 09/10/2008 | CN100417500C Arundo donax pulp, paper product and flakeboard |
| 09/10/2008 | CN100417448C Refining element |
| 09/04/2008 | US20080211119 Flotation Cell |
| 09/04/2008 | US20080210391 Liquid calcium hydroxide as milk of lime is added during or before the pulping is carried out to form the pulp, introducing gaseous carbon dioxide into the pulp suspension thus treated, a chemical reaction is triggered, in which the finely divided calcium carbonate is precipitated |
| 09/03/2008 | CN201109883Y Improved cylinder fluffer |
| 09/03/2008 | CN201109882Y Cylinder fluffer |
| 09/03/2008 | CN201109881Y Apparatus for extracting stalk fiber |
| 09/03/2008 | CN101255664A Method for pulping of non-lumber fibre |
| 09/03/2008 | CN100415988C Fibrous structure and process for making same |
| 08/28/2008 | US20080206836 Modified glucanase for use in textile and fabric treatment, detergents and papermaking |
| 08/28/2008 | US20080202713 reducing volatile organic compound (VOC) emissions generated during refining cellulose fibers, by transporting a mixture of fibers and steam containing VOC's into a steam separator, then discharging cleaned fibers, mixing with a phenol-formaldehyde resin and drying the mixture |
| 08/27/2008 | CN101250838A Method for producing hot-melting artistic anti-fake paper |
| 08/27/2008 | CN101250831A Method for producing cattle manure paper-pulp using cattle manure as raw material |
| 08/27/2008 | CN101250825A Fluid-pressure straining device system |
| 08/20/2008 | EP1957248A1 Manufacturing process for high performance lignocellulosic fibre composite materials |
| 08/20/2008 | EP1381731B1 Production of fiber suspension from waste paper |
| 08/20/2008 | CN101245564A Simple pulping apparatus |
| 08/13/2008 | EP1956135A1 Apparatus for treating papermaking feedstock |
| 08/13/2008 | EP1954871A1 Process of producing high-yield pulp |
| 08/13/2008 | EP1200193B1 A method and means for measuring stress forces in refiners |
| 08/13/2008 | CN201099794Y Adhesion-free defibrination device |
| 08/13/2008 | CN201099793Y Paper pulp raw material milling device for removing impurities |
| 08/13/2008 | CN101240514A Method for preparing paper pulp |
| 08/13/2008 | CN100410445C Dry feed preparation method for grass material |
| 08/06/2008 | CN201095707Y Special-purpose upper cutter block for fibre decomposing device |
| 07/30/2008 | EP1950341A1 Paper machine for used paper recycling apparatus |
| 07/30/2008 | EP1950340A1 Cleaning method and system for used paper recycling apparatus |
| 07/30/2008 | CN201092632Y Preparation device special for agriculture stalk fibre |
| 07/30/2008 | CN101230552A Technique for chemomechanical pulp-making of poplar wood |
| 07/30/2008 | CN101230551A Paper machine for used paper recycling apparatus |
| 07/30/2008 | CN101230545A Method for preparing slurry by blast process |
| 07/30/2008 | CN101230544A Cleaning method and system for used paper recycling apparatus |
| 07/30/2008 | CN101230491A Cotton stalk skin-core mechanical separation method and special equipment |
| 07/30/2008 | CN101230361A Method for preparing ethanol and pulping by using sweet sorghum stem as raw material |
| 07/30/2008 | CN100406141C Selecting technology during preparing grass material |
| 07/24/2008 | DE102007002514A1 Verfahren zum Herstellen von hochwertigen Papieren A process for producing high quality papers |
| 07/23/2008 | EP1947236A1 Pulp concentration adjusting method and device for used paper recycling apparatus |
| 07/23/2008 | EP1947235A1 Paper machine for used paper recycling apparatus |
| 07/23/2008 | EP1947234A1 Pulp feeder for used paper recycling apparatus |
| 07/23/2008 | EP1946829A1 Process and apparatus for waste treatment |
| 07/23/2008 | CN101225620A Method for preparing high-whiteness chemical pulp and paper products thereof by using corn stalk |
| 07/23/2008 | CN101225614A Paper-making technique employing bio-fermentation pulping method instead of chemical pulping technique |
| 07/23/2008 | CN101224036A Ramie external fiber for tobacco sheet and preparing method thereof |
| 07/22/2008 | CA2393858C Raw material for printing paper, method to produce it and printing paper |
| 07/16/2008 | CN101220569A Pulping bleaching assistant and cold soaking pulping process |
| 07/16/2008 | CN101220567A Method for controlling with 100aste newsprint paper deinked pulp esterase |
| 07/16/2008 | CN100402740C Method for feed preparation of grass pulping raw material by using rigid hammer crusher |
| 07/16/2008 | CN100402275C Degradable plant fiber packaging bag and preparation method thereof |
| 07/15/2008 | US7399377 comprises feeding an air stream to the hammermill at an air feed location downstream from the pulp feed location; milling the pulp sheet in the hammermill to produce singulated fibers; conveying at an outlet location oriented at an angle |
| 07/10/2008 | WO2008081028A2 Process and apparatus for waste treatment |
| 07/09/2008 | CN101217833A A machine case manufacturing method by molding with paper pulp |
| 07/09/2008 | CN101215793A Roller screening pulp kneader |
| 07/09/2008 | CN100400743C Quick cold soaking and mechanical pulping process for grass family |
| 07/08/2008 | US7396435 introducing pulps to rotating screw conveyors, then depositing on moving belts, smoothening and feeding to a flaker to reduce the size of pulp into flakes |
| 07/03/2008 | WO2008077450A1 Method for the production of tissue paper |
| 07/03/2008 | CA2673175A1 Process for producing tissue paper |
| 07/02/2008 | EP1395699B1 Method and apparatus for the feeding of fibres |
| 07/02/2008 | CN101210394A Technique for producing pure biological paper pulp |
| 07/02/2008 | CN100398745C Chemical and machinery pulping process using complete white mulberry branch as raw material |
| 06/28/2008 | WO2008081078A1 A method for manufacturing mechanical pulp |
| 06/26/2008 | WO2008074220A1 A preparation method of a bamboo pulp |
| 06/26/2008 | WO2008053070A3 Method and equipment for evaluation of recycled pulp and pulp |
| 06/26/2008 | US20080152861 Engineered Wood Composites Having Superior Strength and Stiffness |
| 06/26/2008 | US20080149290 Manufacturing process of a paper substrate intended to be vulcanised or parchmentised |
| 06/25/2008 | CN101208472A Method and apparatus for mechanical defibration of wood |
| 06/25/2008 | CN101205690A Sea-buckthorn pulping method and sea-buckthorn pulp thereof |
| 06/25/2008 | CN100396846C Method for defibring recycled fibre material in a drum pulper, and a drum pulper |
| 06/19/2008 | WO2008071255A1 Pulper for comminuting and suspending papermaking material, and its use |