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Matches 1 - 50 out of 5,766

Document Document Title
WO/2021/069696A1
There is provided a method of producing a paper, comprising the steps of: a) providing a pulp having a Schopper-Riegler (SR) number measured according to ISO 5267-1:1999 of 25-50, which pulp comprises at least 70% by weight sulphate or s...  
WO/2021/057159A1
The present invention relates to the field of paper pulp processing. Disclosed is a processing technology for removing adhesive substances from paper pulp. A preparation method mainly comprises: first performing heat dispersion on a pulp...  
WO/2021/061723A1
Paper products can comprise a first plurality of fibers that are hardwood fibers and a second plurality of fibers that include softwood fibers and surface enhanced pulp fibers (SEPF). The paper product can include one or more first fiber...  
WO/2021/053446A1
A high efficiency bleaching method for cellulosic pulp includes: (a) providing a charge of aqueous cellulosic pulp to a bleaching vessel at a consistency of from 10% to 30% along with a peroxy bleaching agent and an alkaline agent effect...  
WO/2020/249992A9
The high alpha and high Intrinsic Viscosity pulp production apparatuses, methods and systems (hereinafter "high-A high-IV pulp production") disclosed herein provide for pulp processing used in connection with Kraft Processes (KP) or Pre ...  
WO/2021/044321A1
The present invention is directed to fluff pulp having a Kappa number in the range of from 5 to 18 and having, when in the form of a dry sheet, ISO brightness in the range of from 30 to 60% and having a specific volume in the dry defibra...  
WO/2021/041782A1
The invention herein disclosed and claimed is a process for refining fiber from lignocellulosic biomass. The process provides refined fiber and agriculturally amenable co-products, with a virtually waste-free systems design.  
WO/2021/020251A1
The present invention addresses the problem of providing a novel method for producing bleached pulp which is excellent overall in various performance categories such as whiteness or fading. Said problem is solved by the following metho...  
WO/2021/018751A1
The use of a GH8 xylanase in the treating of pulp for preparing paper materials, such as printing and writing paper, tissue and towel, newsprint, carton board, containerboard and packaging papers.  
WO/2021/014206A1
Methods for preparing aqueous suspensions comprising microfibrillated cellulose, and optionally inorganic particulate material, with increased tensile properties, and methods for selecting a fibrous substrate comprising cellulose for pre...  
WO/2021/009114A1
A process for producing surface modified bleached chemical pulp fiber comprising fluidizing the bleached chemical pulp fiber and contacting the fluidized bleached chemical pulp fiber with an aerosol of a surface modifying composition com...  
WO/2021/006798A1
A method for the manufacturing of cellulose dissolving pulp from virgin wood cellulose and crude recycled textile cellulosic material by charging recycled textile material to a brownstock washing step, an oxidative alkaline pulp bleachin...  
WO/2021/001751A1
The present invention relates to a refined cellulose fiber composition useful as a strength enhancing agent for paper and paperboard, wherein the refined cellulose fiber composition has a Schopper-Riegler (SR) number in the range of 80-9...  
WO/2020/264311A1
The present disclosure is directed to an apparatus and method for processing lignocellulosic material. The apparatus includes a vessel having a fluid separation plate disposed therein, a fluid circulating system in fluid communication wi...  
WO/2020/263160A1
A torque reaction arrangement (50) for twin press-roll pulp washers comprises a first torque reaction arm (10), a second torque reaction arm (20), a first link (19), and a second link (29). The links are provided between the ends of a re...  
WO/2020/260625A1
Disclosed is a method for quantification of water and/or one or more ionic liquid components in an ionic liquid (IL)/water (H2O) mixture. The method comprises obtaining one or more Raman spectra for the IL/H2O mixture, and using a quanti...  
WO/2020/260323A1
There is provided a method comprising the steps of: a) pretreating cellulose fibres so as to obtain pretreated cellulose fibres; and b) polymerizing monomers on the pretreated cellulose fibres so as to obtain cellulose fibres coated with...  
WO/2020/249992A1
The high alpha and high Intrinsic Viscosity pulp production apparatuses, methods and systems (hereinafter "high-A high-IV pulp production") disclosed herein provide for pulp processing used in connection with Kraft Processes (KP) or Pre ...  
WO/2020/246137A1
Provided is a method for producing softwood-derived pulp fibers for paper, the method being capable of reducing the propensity for the product surface to become rough, and capable of reducing the propensity for the tensile strength to be...  
WO/2020/244938A1
A pulp treating arrangement (10) comprises a pulp treating apparatus (100), which receives first pulp (150), the first pulp (150) including at least one of the following: virgin pulp (152) 5and recycled pulp (154); performs a processing ...  
WO/2020/245072A1
The present invention relates to a semi-bleached or unbleached Eucalyptus globulus pulp, the use of which for the production of tissue products allows the development of key properties of such products, such as bulk, strength, absorption...  
WO/2020/245055A1
The invention relates to a method for providing a prepared cellulose-containing mixed source material (110), in particular, a mixed source material (110) for forming a cellulose shaped body (102), in particular, a regenerated cellulose s...  
WO/2020/234761A1
Process for the treatment of lignocellulosic biomasses with a process solvent selected from a eutectic solvent consisting of a hydrogen bond acceptor and of a hydrogen bond donor, an ionic liquid and a mixture of said eutectic solvent an...  
WO/2020/229730A1
According to an example aspect of the present invention, there is provided a method of treating, such as hydrolysing, a cellulosic material, comprising: preparing a mixture comprising or consisting of a cellulosic material and a chlorite...  
WO/2020/229722A1
The invention relates to method for producing viscosity controlled cellulosic material having a viscosity value in a range between 150 ml/g and 500 ml/g in a continuous process, the method comprising the following steps: i) forming a cel...  
WO/2020/229732A1
The present invention relates to the fields of treating lignocellulosic material. Specifically, the invention relates to a method of fractionating a lignocellulosic material, wherein said method comprises contacting a lignocellulosic mat...  
WO/2020/230351A1
Provided is a pulp washing agent capable of improving "dewaterability" and "washability". This invention, according to one embodiment, relates to a pulp washing agent containing a nonionic surfactant represented by formula (1): R1O-[(EO)...  
WO/2020/219390A1
A nonwoven sheet can comprise a plurality of cellulosic pulp fibers and a plurality of synthetic polymeric fibers. The cellulosic pulp fibers can include a plurality of cedar pulp fibers that have a length weighted average fiber length o...  
WO/2020/206271A1
A food-safe composition and resulting article with grease and water resistance properties comprised of a petroleum wax based aqueous emulsion, a food-safe coating formulation, and an alkyl ketene dimer (AKD), wherein the composition exhi...  
WO/2020/202704A1
[Problem] To provide a contamination preventing agent composition capable of effectively preventing pitch contamination in a dry part. [Solution] The present invention relates to a contamination preventing agent composition for preventin...  
WO/2020/198722A1
Cannabinoids can be separated or extracted from plant material. Versions can include a process for separating trichomes from plant material, including mixing plant material with a fluid in a metered feed system and forming a slurry; pump...  
WO/2020/188112A1
There is provided a method of producing a highly refined pulp, comprising the steps of: providing a pulp; subjecting the pulp to a first conical refining step in at least one conical refiner comprising refining plates having a bar width ...  
WO/2020/185135A1
The invention relates to a mixer (1) for mixing a gas into pulp, comprising: a chamber (30) having at least one inlet (32) for pulp and gas and at least one outlet (34) for pulp-gas mixture; said at least one inlet (32) for pulp and gas ...  
WO/2020/165504A1
According to an example aspect of the present invention, there is provided a method of replacing with sodium make-up chemicals sodium losses caused by outflows in a pulp mill which employs a kraft process for producing cellulosic pulp, w...  
WO/2020/160955A1
The invention discloses an improved continuous process for production of cellulose from glass-like feedstock, which is based on: (i) cooking of comminuted grass-like feedstock in white liquor which contains 0.5-2.0% w/w NaOH and 0.5-25.0...  
WO/2020/159759A1
Methods and systems are provided for dewatering an aqueous cellulosic pulp slurry or mat of cellulosic fibers or sludge. The method includes adding at least one anionic surfactant and at least one amide of a carboxylic acid to cellulose ...  
WO/2020/152178A1
The present invention provides a method of producing an improved cellulose pulp consisting of cellulose fibers of a desired length, such as cellulose fibers having a length-weighted average fiber length Lc(l) > 0.6 mm and its use in cell...  
WO/2020/144115A1
The invention relates to obtaining lignin preparations of desirable molecular size and properties. It describes a method of de-polymerizing lignin of high molecular weight into low molecular weight lignin. More in particular, the inventi...  
WO/2020/128996A1
The present invention relates to a method for preparing a surface-treated fibrous material comprising nanocellulose, in which a fibrous material is surface treated with an organic acid or salt thereof. Fibrous materials as such are also ...  
WO/2020/109488A1
The present invention relates to a method for covalently binding at least one amino acid, at least one peptide and/or at least one polypeptide to a cellulosic material comprising cellulose and/or cellulose derivatives comprising free hyd...  
WO/2020/112003A1
The present invention relates to a method of producing holocellulose fibres by treating a wood-based raw material with an organic peroxide, wherein the method comprises charging the organic peroxide continuously to the wood-based raw mat...  
WO/2020/109667A1
The present invention relates to an arrangement and a method for controlling a gas flow separated from a suspension of medium consistency pulp. The pulp is treated in a pulp treatment apparatus comprising at least a first pump and a seco...  
WO/2020/112518A1
A pulp mixture includes a lignocellulosic material, water, lignin, an inorganic salt, and a copolymer including two or more structural units chosen from ethylene oxide units, propylene oxide units, (meth)acrylic acid units, ethyl acrylat...  
WO/2020/101449A1
A method for manufacturing a mold using seaweed pulp according to an embodiment of the present invention comprises: a step for filling the inside of a storage device with a pulp liquid containing seaweed pulp formed from a seaweed raw ma...  
WO/2020/101107A1
According to an embodiment of the present invention, a method for producing seaweed pulp for paper comprises the steps of: filtering impurities out of seaweed sludge to extract a raw pulp solution; stirring the raw pulp solution to pulp ...  
WO/2020/101239A1
A method for producing seaweed pulp for paper according to one embodiment of the present invention comprises the steps of: filtering impurities out of seaweed sludge to extract a raw pulp solution; stirring the raw pulp solution so as to...  
WO/2020/096854A1
A process for the isolation of cellulose nanofibers, in particular carboxylic acid functionalized cellulose nanofibers (MxG-CNF-CO2H) from the sustainable grass hybrid Miscanthus x. Giganteus (MxG). The process includes the steps of perf...  
WO/2020/093280A1
Provided is a composition for use as a peroxide stabilizer in bleaching of pulp,which comprises an iminodisuccinic acid (IDS) or its salt (s), and a sodium salt of a polyaspartic acid (PASP).  
WO/2020/091640A1
A mixer (1 ) for mixing chemicals into pulp, comprising: - a chamber (30) with an inlet (32) for pulp and chemicals and an outlet (34) for mixed pulp; said inlet (32) for pulp and chemicals being arranged through a first wall (36) of sai...  
WO/2020/086900A1
Disclosed herein is a process, comprising: combining one or more additives with a feedstock to obtain a first mixture, the feedstock comprising a fibrous material and water, the fibrous material comprising lignin, cellulose, and hemicell...  

Matches 1 - 50 out of 5,766