| Patents for D21C 9 - After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters (10,265) |
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| 08/15/2013 | WO2013063356A3 Method and composition for enzymatic treatment of fiber for papermaking, and paper products made therewith |
| 08/15/2013 | US20130206349 Surface treated modified cellulose from chemical kraft fiber and methods of making and using same |
| 08/14/2013 | EP2625332A1 Process for the drying of pulp and a suction roll used for the drying of pulp |
| 08/14/2013 | CN103243601A Method for treating masson pine thermo-mechanical pulp resin by using combination of lipase, NaOH and talc powder |
| 08/14/2013 | CN103243600A Method for reducing resin content in masson pine thermo mechanical pulp by combination of lipase and talcum powder |
| 08/14/2013 | CN103243599A Process for recycling and preparing coated white board paper by using waste paper |
| 08/14/2013 | CN103243597A Non-wood raw material clean pulping method |
| 08/14/2013 | CN103243596A Acetate-grade pulp and preparation method thereof |
| 08/14/2013 | CN102493249B Bleaching method capable of increasing bulk of masson pine bleached thermo-mechanical pulp and reducing pollution load of waste liquor |
| 08/14/2013 | CN101275374B Pulp cleaning agent, pulp manufacturing method and pulp cleaning method |
| 08/13/2013 | CA2655035C Pulp reactivity enhancement |
| 08/13/2013 | CA2510090C Process for high temperature peroxide bleaching of pulp with cool discharge |
| 08/07/2013 | EP2622128A1 Method for refining, in an enzymatic medium, paper pulp comprising cellulose fibers in order to reduce the length of said fibers |
| 08/07/2013 | EP2622029A1 Deinking compositions and methods of use |
| 08/07/2013 | CN102345241B Bleaching process of coniferous wood and deciduous wood mixed chemical pulp stewed by sulfate process |
| 08/06/2013 | US8500956 Process for producing a pulp |
| 08/06/2013 | CA2560391C Method and device for dilution of cellulose pulp |
| 08/01/2013 | WO2013110419A1 Method for recovery of molybdate in a molybdate-catalysed delignification of pulp with hydrogen peroxide |
| 08/01/2013 | CA2862543A1 Method for recovery of molybdate in a molybdate-catalysed delignification of pulp with hydrogen peroxide |
| 07/31/2013 | EP2619367A1 A paper or paperboard product and a process for production of a paper or paperboard product |
| 07/31/2013 | EP1899272B1 Use of ashes as an alternative alkalising agent |
| 07/31/2013 | CN103228346A An apparatus and a method for introducing a first fluid into the flow path of a second fluid and use of such an apparatus |
| 07/31/2013 | CN103225235A Anti-myopia paper, as well as preparation method and application thereof |
| 07/31/2013 | CN102337694B Process for bleaching needlebush and hardwood mixed chemical pulp stewed by using sodium hydroxide anthraquinone method |
| 07/31/2013 | CN102124160B Pulping additives for a reduction of resin from kraft pulp |
| 07/31/2013 | CN101611062B Method for functionalising carbohydrates |
| 07/31/2013 | CN101589192B A process in a (D) stage bleaching of hardwood pulps in a presence of Mg(OH)2 |
| 07/30/2013 | US8497410 Method for making absorbent products |
| 07/30/2013 | CA2802287A1 Washer press with multiple nips and multiple displacement wash zones and method |
| 07/25/2013 | DE102012200990A1 Verfahren zur Rückgewinnung von Molybdat bei einer mit Molybdat katalysierten Delignifizierung von Zellstoff mit Wasserstoffperoxid A process for the recovery of molybdate at a molybdate-catalyzed delignification of pulp with hydrogen peroxide |
| 07/24/2013 | EP2616586A2 High brightness pulps from lignin rich waste papers |
| 07/24/2013 | EP2616585A1 Modified cellulose fibres |
| 07/18/2013 | WO2013106703A1 A low viscosity kraft fiber having reduced yellowing properties and methods of making and using the same |
| 07/17/2013 | EP2613872A1 Apparatus and method for introducing a first fluid into the flow path of a second fluid and use of such an apparatus |
| 07/17/2013 | CN203065881U Cotton stalk pulping device |
| 07/17/2013 | CN103210143A A cellulose pulp dryer having blow boxes, and a method of drying a web of cellulose pulp |
| 07/17/2013 | CN103205912A Method for using kelp residues to prepare nano-crystalline cellulose whisker hydrosol |
| 07/16/2013 | CA2609831C Arrangement for the treatment of cellulose pulp involving seal positioning means |
| 07/16/2013 | CA2568594C Method for producing a dissovling pulp |
| 07/10/2013 | CN102242521B Method for preparing pulp by gramineous straw and use of obtained pulp |
| 07/10/2013 | CN102165115B An apparatus for washing and/or dewatering pulp |
| 07/10/2013 | CN102061638B Process for catalytically bleaching pulp by acetate/persulfate |
| 07/04/2013 | WO2013098219A1 Process for reducing fluorescence in pulp |
| 07/03/2013 | EP2609249A1 Process for the treatment of a paper pulp |
| 07/03/2013 | CN103184205A Xylanase S1xB and coding gene thereof |
| 07/03/2013 | CN102066655B Cooling of a cellulose pulp web |
| 07/03/2013 | CN101688362B Method for treating liquid flows at a chemical pulp mill |
| 07/02/2013 | US8475631 Reduction of fiber knots of cellulose crosslinked fibers by using plasma pre-treated pulpsheets |
| 07/02/2013 | CA2686257C Methods to control organic contaminants in fibers |
| 06/27/2013 | WO2013095266A1 Method of increasing the efficiency of a beating of a chemical pulp |
| 06/26/2013 | EP2606182A1 Emulsions for removal and prevention of deposits |
| 06/26/2013 | EP2606175A1 Method for removing hexenuronic acids |
| 06/26/2013 | EP2606173A1 Method for the production of oxidized cellulose fibers, oxidized cellulose fiber sheet materials or oxidized cellulose nonwovens, and use thereof |
| 06/26/2013 | CN103174045A Production method of bark-forming handmade paper bleaching pulp |
| 06/26/2013 | CN102392007B High temperature alkaline xylanase XYN10A, gene thereof and application thereof |
| 06/26/2013 | CN102154871B Method for pulping without producing strongly alkaline high-pollution black liquor |
| 06/25/2013 | US8470132 Near neutral chlorine dioxide bleaching of pulp |
| 06/20/2013 | WO2013089629A1 A cellulose pulp drying box having blow boxes |
| 06/20/2013 | WO2013089615A1 Mixing unit for use in a mixing apparatus and a mixing apparatus |
| 06/19/2013 | CN103161091A Production method of full hemp hand-rolled paper |
| 06/19/2013 | CN101484631B Method for improving the quality of a fibrous pulp |
| 06/18/2013 | CA2651483C Methods for carbonate pretreatment and pulping of cellulosic material |
| 06/13/2013 | WO2013029764A3 Improving the drainage of an aqueous composition |
| 06/12/2013 | CN202989654U Frequency conversion control device of screw press master |
| 06/12/2013 | CN202989653U Hydrogen peroxide bleaching system |
| 06/12/2013 | CN202989652U Novel vacuum pulp washer |
| 06/12/2013 | CN202989648U Production system of high-grade carbon paper through whole waste paper deinking pulp |
| 06/12/2013 | CN103154366A A paper or paperboard product and a process for production of a paper or paperboard product |
| 06/12/2013 | CN103154360A Process for the drying of pulp and a suction roll used for the drying of pulp |
| 06/12/2013 | CN102040709B Method for preparing bleaching bamboo pulp cellulose water absorbing material |
| 06/12/2013 | CN102027167B Method of bleaching pulp with ozone, chlorine dioxide and peroxide |
| 06/06/2013 | WO2013081955A1 Method and system for producing market pulp and products thereof |
| 06/05/2013 | CN103132360A Paper pulp decolorizer and preparation method thereof |
| 06/05/2013 | CN103131556A Nano-grade photocatalytic/peroxide composite bleaching agent and preparation method thereof |
| 06/05/2013 | CN102493257B Masson pine dissolving pulp and production method thereof |
| 06/05/2013 | CN102230288B Straw bio-enzyme degradation aid and degradation pulping process |
| 05/29/2013 | EP2596168A1 Composition containing a multivalent cationic metal and amine-containing anti-static agent and methods of making and using |
| 05/29/2013 | EP2596167A1 Process for preparing fluff pulp sheet with cationic dye and debonder surfactant and fluff pulp sheet made from same |
| 05/29/2013 | EP2564913A9 Disc filter |
| 05/28/2013 | CA2739694C Method for manufacturing papermaking pulp |
| 05/23/2013 | WO2013074202A1 Silicate free refiner bleaching |
| 05/23/2013 | WO2013074030A1 Device and method for controlling tension in a web of cellulose pulp in a cellulose pulp dryer |
| 05/23/2013 | WO2013073652A1 Method for producing microfibrous cellulose, method for producing non-woven fabric, microfibrous cellulose, slurry containing microfibrous cellulose, non-woven fabric, and complex |
| 05/23/2013 | US20130126110 Laccases for bio-bleaching |
| 05/23/2013 | US20130126109 Silicate Free Refiner Bleaching |
| 05/22/2013 | EP2593248A1 Improved method of processing chemical pulp |
| 05/22/2013 | CN202945488U Paper pulp treatment device |
| 05/22/2013 | CN202945487U Paper pulp tank of vacuum ceramic waste paper stock dehydrator |
| 05/22/2013 | CN103114483A Novel production technology of wood fiber |
| 05/22/2013 | CN103114481A Novel efficient pulping process |
| 05/21/2013 | US8444858 Control of development of biofilms in industrial process water |
| 05/21/2013 | US8444810 Apparatus and process for treatment of fibers |
| 05/21/2013 | US8444808 Process for producing nanofibers |
| 05/16/2013 | WO2013070160A1 Liquefaction of biomass at low ph |
| 05/16/2013 | CA2854291A1 Liquefaction of biomass at low ph |
| 05/15/2013 | EP2592185A1 Silica composition |
| 05/15/2013 | CN103109016A High brightness pulps from lignin rich waste papers |
| 05/15/2013 | CN103109015A Freeness of paper products |
| 05/15/2013 | CN103109014A Process for producing modified cellulose pulps, cellulose pulp thus obtained and use of biopolymer for producing cellulose pulps |
| 05/15/2013 | CN103103848A High-vacuum-degree pulp washer |