| Patents for D21B 1 - Fibrous raw materials or their mechanical treatment (6,805) |
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| 10/25/2007 | US20070245907 Extraction bedplate with laser or water jet cut apertures |
| 10/24/2007 | EP1847645A2 Method for dispersing pulp |
| 10/24/2007 | EP1611279A4 Method for making chemically cross-linked cellulosic fiber in the sheet form |
| 10/24/2007 | CN101061272A A method and apparatus for processing wood chips |
| 10/24/2007 | CN101058958A Method of preparing high-strength corrugated paper |
| 10/24/2007 | CN101058951A Method of producing fir chemical pulp |
| 10/24/2007 | CN101058950A Modified Cylinder fluffer |
| 10/24/2007 | CN101058949A 圆筒疏解机 Cylinder fluffer |
| 10/24/2007 | CN101058948A Method of fractionating agronomic crop straw component and tissue |
| 10/18/2007 | WO2007116473A1 Method for obtaining plant outer bark fiber and plant stem core from plant stem, system for processing plant stem and kenaf outer bark fiber mass obtained by the method |
| 10/17/2007 | CN100342985C Method for adjusting the fibrous properties of pulp |
| 10/16/2007 | US7282114 Method for processing pulp |
| 10/16/2007 | US7281631 Process for de-inking paper pulp and flotation cell used for this process |
| 10/11/2007 | US20070237026 Methodology for improved mixing of a solid-liquid slurry |
| 10/11/2007 | DE102006016174A1 Process to recover fiber from waste paper by compression treatment between grinding surfaces driving a rolling action |
| 10/10/2007 | CN101050602A Paper made from collagen fiber and its processing method |
| 10/09/2007 | US7279073 Apparatus for liquid-based fiber separation |
| 10/04/2007 | US20070227953 Machine for the Classification, Sieving and Separation of Non-Homogeneous Masses to Materials |
| 10/04/2007 | US20070227682 Method and a Device for Removing Gas from Wood Chips |
| 10/04/2007 | DE102006031904B3 Paper pulping assembly for paper recovery and recycling has rotor surrounded by ring |
| 10/03/2007 | EP1552052B1 A method of producing mechanical pulp and the mechanical pulp thus produced |
| 10/03/2007 | CN100340715C New process for producing alkaline hydrogen peroxide mechanical pulp by double scrwe extruding method |
| 09/26/2007 | CN200952094Y 麦秸螺旋进料装置 Straw screw feeder |
| 09/26/2007 | CN200952093Y Straw washing machine |
| 09/20/2007 | DE202007008794U1 Vorrichtung zur Stoffaufbereitung, insbesondere Stofflöser Apparatus for stock preparation, especially pulper |
| 09/19/2007 | EP1834033A1 A method and apparatus for processing wood chips |
| 09/19/2007 | EP1833610A1 Method and device for processing pulp |
| 09/19/2007 | CN200949176Y Bamboo rolling breaker |
| 09/19/2007 | CN100337784C Extraction bedplate with laser or water jet cut apertures |
| 09/18/2007 | CA2180806C Method and apparatus for sharpening the surface of a grindstone for a pulp grinder |
| 09/12/2007 | CN200946218Y Improved water-power pulping machine rotor |
| 09/12/2007 | CN101034738A Lead-acid accumulator DE separation board and its making method |
| 09/11/2007 | US7267773 System for bioremediating water to be treated with plant matter such as cultured algae in an attached periphyton bed, harvesting the plant matter to produce a wet algal biomass, and mixing the biomass with a shredded fibrous material to produce a pulp that can be molded into a biodegradable package |
| 09/11/2007 | US7267231 Process and device for aerating suspensions |
| 09/05/2007 | EP1289683B2 Method for processing waste and waste processing plant |
| 09/05/2007 | CN101029458A Continuous hydraulic pulper |
| 09/05/2007 | CN100335715C Microwave method for preprocessing pulping raw material |
| 09/04/2007 | US7264690 Catalyzer for clean pulping and process for using the same |
| 09/04/2007 | US7264184 Birch bark processing and the isolation of natural products from birch bark |
| 08/30/2007 | DE102006008761A1 Verfahren zum Auflösen und Reinigen von störstoffhaltigen Papierrohstoffen Method of dissolving and cleaning of paper stock containing foreign materials |
| 08/29/2007 | EP1826314A1 Process for pulping and cleaning of papermaking raw materials containing impurities |
| 08/29/2007 | CN200939646Y Airflow netting dry-process paper forming apparatus |
| 08/29/2007 | CN101027446A Process and device to manufacture cellulose pulp |
| 08/29/2007 | CN101024924A Method for producing unbleached sulfurate Larix gemelini slurry |
| 08/29/2007 | CN100333819C Equipment and method for producing paper pulp |
| 08/23/2007 | US20070193706 manufacturing corrugated medium for cardboard box or carton; cooking in first liquor in the absence of an alkali addition; mechanically fiberizing to form a pulp; separating hydrolyzate from the pulp; treating the pulp with a second liquor including an alkali; blending with recycled fibers; refining pulp |
| 08/23/2007 | DE102006006703A1 Treatment of contaminated waste residue from recycled paper pulping involves continuous grinding in a hammer mill with simultaneous centrifugal fiber removal through a sieve |
| 08/22/2007 | CN101023214A Method and apparatus for removing sheets of fibres from banana plants for the production of paper products |
| 08/22/2007 | CN101021050A Process of cow dung paper pulp with cow dung as material |
| 08/22/2007 | CN101021049A Cow dung paper pulp produced with cow dung as material |
| 08/15/2007 | CN2934316Y Milling cutter type pulp stirrer |
| 08/15/2007 | CN1332092C Hydraulic pulp kneader rotor |
| 08/15/2007 | CN101015929A Composite wood made of rice straw polymer and its producing process |
| 08/14/2007 | US7255816 Method of recycling bonded fibrous materials and synthetic fibers and fiber-like materials produced thereof |
| 08/08/2007 | CN101012628A Production technology of thermomechanical bamboo pulp |
| 08/08/2007 | CN101012627A Drum core bend preventing device of barrel fluffer |
| 08/08/2007 | CN101011183A Paper making method tobacco sheet producing process using double-grid method |
| 08/08/2007 | CN101011182A Tobacco sheet producing process using improved paper making method |
| 08/07/2007 | CA2449848C Process for singulating cellulose fibers from a wet pulp sheet |
| 08/02/2007 | WO2007087037A2 A wet pulping system and method for producing cellulosic insulation with low ash content |
| 08/02/2007 | US20070175604 Process for mixing, device therefor and use thereof |
| 08/02/2007 | CA2640138A1 Method and arrangement for feeding chemicals into a process stream |
| 08/01/2007 | EP1668180B1 Chemical activation and refining of southern pine kraft fibers |
| 08/01/2007 | CN101008160A Method for producing paper pulp utilizing herbal plant, crop stalk and ore powder |
| 08/01/2007 | CN101008159A Positive air admission type flotation deinking tank for lab |
| 08/01/2007 | CN101008158A Plant fiber separation apparatus |
| 07/26/2007 | US20070169901 Process for impregnating woodchips |
| 07/25/2007 | CN1327969C A method and a device for measuring stress forces in refiners |
| 07/25/2007 | CN101003955A Pretreating raw material of plant fiber by soft alkali / oxidation process, and technique of cyclic using solvent |
| 07/25/2007 | CN101003954A Technique for processing alga plant, and application of processed products |
| 07/18/2007 | EP1678373B1 Method for regulating whiteness for removal of printing ink in deinking installations and deinking installation comprising a flotation cell for removal of printing ink |
| 07/18/2007 | CN100999880A Process and product of pulping and mfg. sheet using low tar tabacco straw by biotransferring and swelling |
| 07/17/2007 | CA2233693C Replaceable shear edge for a star-type feeder |
| 07/12/2007 | WO2007077326A1 Method for preparing paper pulp from recycled paper containing contaminants |
| 07/12/2007 | US20070158041 Method and arrangement for treating pulp |
| 07/12/2007 | US20070158038 bleaching the pig hair with hydrogen peroxide in an alkaline solution, separation and drying, forming particle size in the range of from 0.5 to 4 mm; use as cellulose fibres |
| 07/12/2007 | CA2634529A1 Method for preparing paper pulp from recycled paper containing contaminants |
| 07/11/2007 | CN2921074Y Waste paper cracking peeling machine |
| 07/11/2007 | CN1997791A Method for mechanical pulp production |
| 07/11/2007 | CN1995539A Manual paper and its preparing process and use thereof |
| 07/11/2007 | CN1994702A Medium density fiber board made from bamboo |
| 07/11/2007 | CN1994700A Medium density fiber board made from bamboo and wood |
| 07/11/2007 | CN1325724C Neutral deinking method for waste newspaper |
| 07/11/2007 | CN1325723C Wood method for pulping using cotton stalk, bush or brush |
| 07/05/2007 | US20070151683 Process for preparing mechanical pulp |
| 07/04/2007 | CN2918506Y Horizontal rotation cylinder fluffer |
| 07/03/2007 | US7237733 Method and apparatus for producing mechanical fibers |
| 07/02/2007 | CA2572014A1 Method and apparatus for feeding wood chips into a chip bin |
| 06/28/2007 | WO2007073342A1 Process for manufacturing paper or paperboard |
| 06/28/2007 | US20070145621 Method of recovering a base paper for gypsum board and apparatus of recovering a base paper for gypsum board |
| 06/27/2007 | EP1801284A1 Method for producing pulp for a papermaking machine |
| 06/27/2007 | EP1799364A1 Method for manufacturing pulp from classified wood material |
| 06/27/2007 | CN1986959A Method for making paper from crofton weed |
| 06/26/2007 | US7234915 Sluice feeder |
| 06/21/2007 | US20070137805 selectively introduces waste materials containing organic cellulosic fibers into a size reduction machine, pre-cleaned waste materials are conveyed to a tank, or tunnel type fiber recovery apparatus, subjected to mechanical and fluid fiberization to produce useful products e.g animal or fowl bedding |
| 06/21/2007 | US20070137804 producing a pulp having high brightness and low residual ink by actively introducing cavitation bubbles into a pulp suspension, to strip/fragment ink from pulp fibers and inorganic particles under an impact force induced by collapse of the bubbles during producing recycled pulp from printed newspapers |
| 06/20/2007 | EP1798331A1 Process for dispersing pulp |
| 06/20/2007 | EP1798330A1 Process for dispersing pulp |
| 06/20/2007 | EP1798329A1 Method for removing impurities from an aqueous fibre suspension |
| 06/14/2007 | US20070131361 Method for charging a fiber suspension, and arrangement for carrying out said method |