| Patents for D21F 13 - Methods or apparatus for making discontinuous sheets of paper, pulpboard, or cardboard, or of wet web, for fibreboard production (365) |
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| 02/08/2012 | CN102031727B 一种复合纤维包装板及其制造方法 A composite fiber board and its manufacturing method of the packaging |
| 02/08/2012 | CN101530700B 一种湿法成型微孔过滤分离材料及其制备方法与应用 One kind of wet forming microporous filter separator material and preparation method and application |
| 02/01/2012 | CN102031728B 一种空调器室内机壳体的制备方法 Preparation method of an air conditioner indoor unit casing |
| 01/18/2012 | EP2407593A1 Recycled paper smoothing device for used paper recycling apparatus |
| 01/04/2012 | CN102304868A Paper machine |
| 12/20/2011 | US8080131 Device and method for measuring the velocity of a moving paper web |
| 11/22/2011 | US8062565 Low density non-woven material useful with acoustic ceiling tile products |
| 11/16/2011 | CN102242520A Method for making Tibetan paper by hand |
| 11/16/2011 | CN101736629B Hot-pressing tympan paper and manufacturing method thereof |
| 11/10/2011 | WO2011138158A1 Process for addition of a liquid chemical to a process stream and apparatus |
| 11/08/2011 | US8052842 Method for making a compressed structural fiberboard |
| 11/02/2011 | CN102230297A Plant paper pulp fiber modifying agent and modifying method using same, and filter paper and preparation method thereof |
| 10/26/2011 | EP2260143B1 Method of making sheets for security documents |
| 10/19/2011 | CN102221059A Wet brake friction plate and manufacturing method thereof |
| 09/27/2011 | US8025769 Highly acoustical, wet-formed substrate |
| 09/21/2011 | CN201981441U 一种捞纸帘床 One kind of fishing paper curtain bed |
| 09/07/2011 | CN102174772A Method for preparing high-temperature-resistant carbon fiber and glass fiber composite membrane |
| 09/07/2011 | CN102174767A Making method of ancient Chinese art paper |
| 09/07/2011 | CN102174766A Production method of handsheet with high bulk and low ration |
| 09/07/2011 | CN102174765A Technological process for making Lian-si paper by using moso bamboo |
| 07/20/2011 | CN101158123B High-strength bamboo pulp manufacturing technique |
| 07/05/2011 | US7972479 Process for the control of pitch |
| 06/30/2011 | WO2011077446A1 Process for recycling cotton fabrics |
| 06/29/2011 | CN201883340U Sheet former suitable for long fibers |
| 06/29/2011 | CN101654889B Bleached needle leaved wood napped pulp board and preparation process thereof |
| 06/29/2011 | CN101654164B Paper strapping tape and preparation process thereof |
| 06/22/2011 | CN102102310A Method for manufacturing lian-shi paper |
| 06/22/2011 | CN101560742B Preparation method for lab multilayer handsheet |
| 06/22/2011 | CN101158122B Bamboo dissolved pulp manufacturing technique |
| 06/21/2011 | US7964064 System and method to control press section dewatering on paper and pulp drying machines using chemical dewatering agents |
| 06/15/2011 | CN102094352A Hot press complete equipment for big width insulating carboard for transformer |
| 06/15/2011 | CN101781869B Drying process of super thick insulated pressboard |
| 05/18/2011 | CN102061644A Manufacturing method for durable archival paper |
| 05/11/2011 | CN101023214B Method and apparatus for removing sheets of fibres from banana plants for the production of paper products |
| 05/04/2011 | EP2315874A1 Improvements in manufacturing containers |
| 04/27/2011 | CN102031727A Composite fiber packing plate and manufacturing method thereof |
| 04/21/2011 | DE102009042362A1 Verfahren zur Herstellung von Kartonplatten bzw. Kartonplattensträngen aus Altpapier A process for producing plasterboards or plaster board strands from wastepaper |
| 04/06/2011 | CN101158121B Process for manufacturing dissolved pulp by using ethanol, sulfate and acetic acid |
| 02/16/2011 | CN101978112A Method of making sheets for security documents |
| 01/13/2011 | US20110007931 Speaker diaphragm, speaker, and method for manufacturing speaker diaphragm |
| 01/05/2011 | CN101935956A Technology for improving strength and performance of regenerated cardboard paper by recycling OCC (Old Corrugated Containers) waste paper in energy-saving way |
| 01/04/2011 | US7862684 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 |
| 12/22/2010 | CN101435164B Modified production process of paper making level sulphate wood pulp plate |
| 12/15/2010 | EP2260143A2 Method of making sheets for security documents |
| 12/15/2010 | CN101285285B Preparing process of composite sound absorbing paper |
| 12/14/2010 | US7850823 Method of controlling adhesive build-up on a yankee dryer |
| 12/08/2010 | CN101368353B Preparation method of technique paperboard |
| 12/07/2010 | CA2582430C Papermaker's forming fabric with cross-direction yarn stitching and ratio of top machine direction yarns to bottom machine direction yarns of 2:3 |
| 11/17/2010 | CN201634946U Paper relic restoration paper making equipment system |
| 11/03/2010 | CN201620309U Cutting device for insulating bracket for transformer body of transformer |
| 10/27/2010 | CN101363201B Method for preparing edible fruit and vegetable dietary fiber paper |
| 10/12/2010 | US7811414 determining a dry solids content of a web passing from a press section to a dryer section of a paper machine; software; continual monitoring; energy efficiency |
| 09/15/2010 | CN201581300U Paperboard shaping device |
| 08/24/2010 | CA2378707C Method and apparatus for controlling converting rewinder lines |
| 07/28/2010 | CN101787665A Production process of ultrathick insulating paperboard |
| 07/21/2010 | CN101781869A Drying process of super thick insulated pressboard |
| 07/21/2010 | CN101781868A Hot-pressing production process of standard paperboard |
| 07/21/2010 | CN101148833B Paper-making-stage reclaiming wood pulp plate denaturalization producing technique |
| 07/14/2010 | EP2206829A1 Industrial fabric for paper making and press |
| 07/13/2010 | US7754314 Security paper highly resistant to double folding and method for making same |
| 07/06/2010 | US7750054 System having means for preventing a build-up of alkenyl succinic anhydride (ASA) on inside surfaces of apparatus that is used to produce the sizing |
| 06/23/2010 | CN101148834B Paper-making-stage broad-leaved wood pulp plate denaturalization producing technique |
| 06/23/2010 | CN101148832B Paper-making-stage high viscosity wood pulp plate denaturalization producing technique |
| 06/16/2010 | CN101736629A Hot-pressing tympan paper and manufacturing method thereof |
| 06/09/2010 | CN1654742B Drive device of a cylinder or a roll for a paper or board machine and replacing assembly for replacing master gear |
| 06/09/2010 | CN101148836B Paper-making-stage bamboo wood pulp plate denaturalization producing technique |
| 06/01/2010 | US7727359 Temporary wet strength resin for paper applications |
| 05/26/2010 | CN201485746U Insulating cardboard forming device |
| 05/26/2010 | CN201485745U Liquid level displaying sheet forming machine |
| 05/26/2010 | CN201485744U Sheet former |
| 05/19/2010 | CN101158125B Paper-making grade softwood pulp plate modifying production technique |
| 05/19/2010 | CN101148837B Paper-making-stage primary color wood pulp plate denaturalization producing technique |
| 05/19/2010 | CN101148835B Paper-making-stage wood pulp plate denaturalization producing technique |
| 05/04/2010 | US7708863 passing aqueous slurry comprising paper particulate, friction fillers, and resin through mold chamber including at least one perforated mold wall to form net shape, molded part on perforated mold wall, reducing water content of said net shape, molded part; and curing; simplification |
| 04/07/2010 | CN101691715A Aluminum silicate fiber paper |
| 03/16/2010 | US7678307 Vortex control in slurry molding applications |
| 02/24/2010 | CN101654889A Bleached needle leaved wood napped pulp board and preparation process thereof |
| 02/18/2010 | US20100038047 Lignocellulose fiber-resin composite material |
| 02/17/2010 | CN201406611Y Pulp board machine for producing pulp board containing water-absorbing resin |
| 02/04/2010 | WO2010014016A1 Improvements in manufacturing containers |
| 02/04/2010 | US20100025000 Office recycle machine |
| 01/27/2010 | CN101634121A Method for preparing asbestos latex sheets |
| 01/14/2010 | WO2009115766A3 Method of making sheets for security documents |
| 12/16/2009 | CN101606313A Method for controlling an electric drive |
| 12/08/2009 | US7628889 Lignocellulose fiber-resin composite material |
| 10/21/2009 | CN101560742A Preparation method for lab multilayer handsheet |
| 09/29/2009 | CA2363818C Adhesive binder and synergist composition and process of making lignocellulosic articles |
| 09/24/2009 | CA2718813A1 Improvements in making sheets |
| 09/22/2009 | US7591927 Manufacturing method for wastepaper shock absorbing materials using vacuum forming principle and wastepaper shock absorbing materials using the method |
| 09/16/2009 | CN101530700A Wet method forming micropore filtration separation material and preparation method and application thereof |
| 09/01/2009 | US7582191 Process for producing loudspeaker diaphragm, loudspeaker diaphragm produced by the process, and loudspeaker with the diaphragm |
| 09/01/2009 | US7582190 Making shaped pulp article by slurrying materials of construction with water, placing slurry in porous mold having shaped molding surface, extracting excess water through porous mold to form shaped article, and pressing shaped article between complementary heated male and female structures |
| 08/19/2009 | CN100529253C Manufacturing process of medical moisture absorption paper point base paper |
| 06/24/2009 | CN201261850Y Equipment for producing high-density large insulating paperboard |
| 06/04/2009 | WO2009069403A1 Industrial fabric for paper making and press |
| 06/04/2009 | CA2706230A1 Industrial fabric for forming and pressing |
| 05/21/2009 | US20090126889 Fluorometric method for monitoring surface additives in a papermaking process |
| 04/23/2009 | US20090101297 irradiating a sheet of a paper to be characterized with polarized radiation having a frequency of 1x108 Hz up to 30 THz;measuring radiation intensities transmitted by sheet of paper;calculating Stokes parameters, determining fiber orientation parameter from such Stokes parameters |
| 04/07/2009 | US7513974 At least two tissue paper plies which are superposed and joined, cut or precut into a desired format and connected to one another at least over a segment of a peripheral zone; such as napkins or handkerchiefs |
| 03/24/2009 | US7507315 Paper making apparatus and method |