Patents
Sitemap › D21 - Paper-making; Production of cellulose › D21C - Production of cellulose by removing non-cellulose substances from cellulose- containing materials; Regeneration of pulping liquors; Apparatus therefor › D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters
Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265)
09/2012
09/26/2012CN101831825B Improved production method of waste paper deinking pulp
09/25/2012US8273382 Suppressing microbial growth in pulp and paper
09/19/2012CN102686799A Method for manufacturing nanofibrillated cellulose pulp and use of the pulp in paper manufacturing or in nanofibrillated cellulose composites
09/19/2012CN102677531A Post-treatment process of cotton-bamboo composite pulp
09/19/2012CN102677530A Low-carbon papermaking method
09/19/2012CN102677529A Posttreatment process of cotton, wood and bamboo compound pulp
09/19/2012CN102677517A Washing process used for modifying papermaking pulp into viscose fibre pulp
09/19/2012CN102677515A Process for preparing recovered pulp with high whiteness and high cleanliness
09/19/2012CN102677509A Material preparation process for preparing dissolving pulp by modifying bleached needle leave wood and broadleaf wood composite pulp
09/19/2012CN102677504A Manufacturing process of antibacterial bamboo pulp used for high-wet-modulus fibre
09/18/2012US8268123 Process for producing bleached pulp
09/18/2012US8268120 Method for bleaching chemical paper pulps by final ozone treatment at high temperature
09/18/2012US8268119 Method and apparatus for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials
09/13/2012WO2012060672A3 Bleached wood powder, a production method for bleached wood powder, paper which uses the same and a production method for the same
09/13/2012US20120227918 Refiner steam separation system for reduction of dryer emissions
09/12/2012CN202430569U Disc thickener
09/12/2012CN202430568U Wave-shaped filter screen of concentrator
09/12/2012CN202430567U Wave-shaped filtering disk of thickener
09/12/2012CN202430566U Thickener with filtering disc
09/12/2012CN102666976A Method of treating liquid flows at a chemical pulp mill
09/11/2012US8262858 Compositions and processes for paper production
09/11/2012US8262856 Processes and systems for the bleaching of lignocellulosic pulps following cooking with soda and anthraquinone
09/11/2012US8262855 Method for determining the total peroxide content of pulp suspension
09/11/2012US8262850 Chemical activation and refining of southern pine kraft fibers
09/11/2012CA2532040C Method of curling fiber and absorbent sheet containing same
09/05/2012EP2495048A1 Method of making fibrous material
09/05/2012CN202416052U Improved decker machine
09/05/2012CN102653930A Pollution-free pulping process for plant fibers
09/05/2012CN102108649B Waste paper deinking process method
09/05/2012CN101849064B Apparatus and method for treatment of pulp
09/04/2012US8257550 Method of bleaching a pulp
08/2012
08/30/2012WO2012115590A1 Single-step method for production of nano pulp by acceleration and disintegration of raw material
08/29/2012CN102652196A Drum and apparatus for processing cellulose-containing pulp, where rewetting is prevented, and method for manufacturing the drum
08/29/2012CN101535563B Methods to control lipophilic extractives in acacia wood pulp and fiber
08/28/2012CA2568840C Device and method for cleaning of a filter net of a pulp dryer's fan tower, a pulp dryer's fan tower and a pulp dryer
08/23/2012WO2012111418A1 Method for inhibiting pitch and pitch inhibitor
08/23/2012WO2012037024A3 High brightness pulps from lignin rich waste papers
08/23/2012US20120211185 Compositions and processes for paper
08/23/2012US20120211184 Fractionation of a waste liquor stream from nanocrystalline cellulose production
08/23/2012DE102011011960A1 Verfahren und Aufbereitung einer Faserstoffsuspension The method and preparation of a fiber pulp suspension
08/22/2012EP2488694A1 Process for producing differentiated cellulose fibers comprising an enzymatic treatment in association with an acid step
08/22/2012EP2488148A2 Methods of photoprotecting a material against solar uv radiation using photonic particles; compositions
08/22/2012EP2092116B1 Method for bleaching chemical paper pulps by final ozone treatment at high temperature
08/22/2012CN102644211A Preparation method of industrial hemp full stalk bleaching chemical pulp
08/22/2012CN102182093B Bleaching process of bamboo dissolving pulp
08/21/2012US8247641 Absorbent products and methods of preparation thereof
08/16/2012US20120205060 Method and apparatus for reducing impurities in cellulose fibers for manufacture of fiber reinforced cement composite materials
08/15/2012EP2486186A1 Method for producing wet-strengthened papers
08/15/2012EP1546450B1 Method of deresinating pulp using alkyl alcohol alkoxylate surfactants
08/15/2012CN102635010A Pulp distribution device of dual-roll pulp extruding machine
08/15/2012CN102635008A Technique for producing dissolving pulp from whole cotton stalks
08/15/2012CN102634491A Laccases for pulp bio-bleaching
08/15/2012CN102154906B Paper pulp prepared from maize straw, preparation method thereof and paper product prepared from paper pulp
08/15/2012CN101955958B Genes, plasmid, bacterial strain and application of xylanase
08/08/2012CN102108644B Pollution-free production process of plant fiber pulp
08/08/2012CN101824763B System for cooking purified cottons
08/08/2012CN101812812B Elemental chlorine free bleaching method for plant fiber stuff
08/02/2012WO2012102650A1 Continuous digester with a bottom scraper equipped with draining apertures
08/02/2012WO2012101051A1 A method for the use of oxidants for microbial control under reducing conditions
08/02/2012US20120193050 Method and assembly for processing cellulose pulp of wood processing industry
08/01/2012EP2104765B1 Bleaching of substrates
08/01/2012CN202359442U Screw press washer
08/01/2012CN202359441U Fan system for drum type vacuum pulp washer
08/01/2012CN202359440U High-speed pulp washer
08/01/2012CN102619126A High-purity sulfate pulp, as well as production method and application thereof
08/01/2012CN102619125A Sulfate paper pulp for producing three-filtration paper and production method for sulfate paper pulp
08/01/2012CN102619124A Insulating pulp and production method thereof
08/01/2012CN102619120A Process for producing modified wood pulp
07/2012
07/26/2012US20120186762 Producing half-stuffs for the manufacture of papery articles
07/25/2012EP2479342A1 Ozone bleaching of pulp
07/25/2012EP1581693B1 Bleaching of cellulosic fibre material with peroxide using polymers as a stabiliser
07/25/2012CN202347344U Black liquor flow guide device on multi-roll press filter
07/25/2012CN202347343U Novel drum-type vacuum pulp washer
07/25/2012CN102605667A Chinese yew pulp and preparation method thereof
07/25/2012CN101792979B Aramid fiber paper pretreatment method for aerospace
07/18/2012CN102597366A Method of producing pulp from lignocellulosic material containing silica
07/18/2012CN102587186A Method for bleaching dendrocalamus giganteus chemical pulp
07/18/2012CN102587185A Method for cleaning and bleaching eucalyptus dissolving pulp
07/18/2012CN102587184A Preparation method of paper with fibers of different colors
07/18/2012CN102587181A Environment-friendly clean pulping process
07/18/2012CN102587178A Pulp preparing method for increasing bagasse oxygen-alkali cooking effect
07/18/2012CN102154885B Oxygen delignification process for bamboo wood dissolving pulp
07/18/2012CN102154884B Improved bleaching process for bamboo wood dissolving pulp
07/18/2012CN102154883B Alkaline bleach liquor extraction process of bamboo wood dissolving pulp
07/18/2012CN102121201B Preparation method of bamboo dissolving pulp
07/18/2012CN101460675B Bleaching process of chemical pulp
07/18/2012CN101451322B Grass type un-bleaching pulp, preparation method and use thereof
07/17/2012CA2519718C Method for controlling pitch and stickies deposition
07/12/2012WO2012092676A1 Novel cell wall deconstruction enzymes and uses thereof
07/12/2012US20120175073 Modified cellulose from chemical kraft fiber and methods of making and using the same
07/11/2012EP2473670A1 Method and assembly for processing cellulose pulp of wood processing industry
07/11/2012EP2326766B1 Pulping additives for a reduction of resin from kraft pulp
07/11/2012CN202323538U 螺旋压榨机用螺旋轴 Screw press screw shaft
07/11/2012CN102575424A Pressure diffuser with less power rating in hydraulic system
07/11/2012CN102573761A Methods of photoprotecting a material against solar uv radiation using photonic particles
07/11/2012CN102561098A Method of preparing silk rice paper by using silk residuals as raw materials
07/11/2012CN102561093A Continuous cotton pulp washing and bleaching process
07/11/2012CN102561092A Anti-rust base paper and production method thereof
07/11/2012CN102561083A Method for bleaching broadleaf wood pre-conditioning refiner chemical pretreatment alkaline peroxide mechanical pulp (P-RC APMP) by using H2O2/optical brightening agent (OBA)
07/11/2012CN102561080A Improved P-RC APMP (preconditioning-refining chemical alkaline peroxide mechanical pulp) new flow path
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