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WO/2012/060672 |
The present invention relates to paper which uses bleached wood powder, and to a production method for the same, wherein paper is produced by mixing bleached wood powder into natural pulp thereby improving the dewaterability while reduci...
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WO/2012/056108 |
The present invention relates to a method and arrangement for deaerating incoming thick stock or mixture of white water and thick stock in a pulp drying machine comprising a head box 1 for forming a web, a wire section 2 for removing whi...
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WO/2012/052617 |
The invention is based on performing, in an alternative step, biological or biochemical processing on a wood fibre fraction generated in connection with pulp making and unsuitable for paper making, whereby one or more biocatalysts having...
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WO/2012/046184 |
The present invention relates to a process for the drying of pulp which process comprises the steps of, providing a pulp comprising cellulosic fibers, conducting the pulp to a wire, dewatering the pulp by the aid of a suction roll wherei...
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WO/2012/040908 |
Provided are surfactant compositions and their use for deinking various substrates, such as waste paper. The compositions comprise: (a) an alkyldiphenyloxide disulfonate compound of formula (I) : wherein R1 at each occurrence is independ...
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WO/2012/042146 |
The invention relates to a method for refining, in an enzymatic medium, paper pulp comprising cellulose fibers from sources other than wood or from recycled material, wherein said pulp comprises more than 10% of fibers having a length gr...
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WO/2012/039668 |
The present invention relates to a paper or paperboard product comprising a furnish wherein said furnish comprises a cationic polymer in an amount of above 1,5% by weight, an anionic polymer and microfibrillated cellulose. The invention ...
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WO/2012/037024 |
This present invention relates to methods for preparing premium or near-premium brightness pulps for towel and tissue applications from fiber sources comprising substantial amounts of lignin-containing pulp and chemical pulp while contro...
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WO/2012/034997 |
The present invention relates to modified cellulose fibres comprising cationised cellulose nanocrystals adsorbed on cellulose fibres. The invention relates also to cellulose dispersions comprising the modified cellulose fibres and method...
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WO/2012/033461 |
An apparatus for mixing a first fluid into a flow path (44) of a second fluid, said apparatus having a chamber (12), which encloses the flow path and exhibits a first inlet (13) for receiving the second fluid, a second inlet (15) arrange...
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WO/2012/028800 |
The invention relates to a process for the delignification and bleaching of paper pulp, comprising a step in which the paper pulp is brought into contact with hydrogen peroxide and with a copper-cyclic ligand complex, said cyclic ligand ...
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WO/2012/027272 |
A method for inhibiting resinous and sticky substances from filling or forming deposits on or within papermaking forming wire, by applying to said wire an effective inhibiting amount of a composition comprising at least one cationic agen...
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WO/2012/025538 |
The present disclosure relates to a process for the treatment of a paper pulp, wherein, in a first step, a composition of particles of lamellar silicate is added to said paper pulp, and in a second step, said paper pulp is passed through...
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WO/2012/027272 |
A method for inhibiting resinous and sticky substances from filling or forming deposits on or within papermaking forming wire, by applying to said wire an effective inhibiting amount of a composition comprising at least one cationic agen...
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WO/2012/022421 |
The aim of the invention is to devise an improved method for producing oxidized cellulose fibers, oxidized cellulose fiber sheet materials, or oxidized cellulose nonwovens which is particularly simple or efficient and environmentally fri...
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WO/2012/022451 |
The invention relates to an aqueous cleansing emulsion comprising (a) a hydrophobic component Hi selected from the group consisting of the following categories: (i) aliphatic C10- or C15-terpene hydrocarbons; (ii) aliphatic C10- or C15-t...
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WO/2012/022840 |
The present invention relates to a method for removing hexenuronic acids from pulp. The method comprises obtaining pulp by chemical pulping, treating the obtained pulp by using a further delignification process comprising an oxygen treat...
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WO/2012/012316 |
A fluff pulp or other pulp, comprises a multivalent cationic metal ion selected from the group consisting of Al+3, B+3, Mn+2, Cu+2, Cu+3, Zn+2, Sn+2, Sn+4, water-soluble salt thereof, or combination thereof; an amine-containing anti- sta...
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WO/2012/012633 |
A process is provided for making a fluff pulp sheet, comprising: contacting at least one cationic dye and at least one debonder surfactant with a composition comprising fluff pulp fibers, to form a fluff pulp mixture; forming a web from ...
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WO/2012/007642 |
The present invention is related to chemical pulping. It provides a method by which dewatering in paper product production, optical properties, bulk and surface smoothness of the paper product produced can be increased. Said method invol...
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WO/2012/008909 |
An arrangement (20) for drying cellulose pulp comprises a drying box (22), a web position control unit (24), which is operative for controlling the lateral position of a web (44) of cellulose pulp dried in the drying box (22), and a web ...
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WO/2012/001195 |
The invention relates to a method for the delignification of a pulp of cellulose fibres or any other lignocellulosic material (LCM), comprising at least one LCM pre-treatment step including the refining of the LCM, together with the pre-...
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WO/2012/001145 |
The use of a peroxidase and violuric acid, or a derivative thereof in the bleaching of pulp, such as paper materials, such as paper, linerboard, corrugated paperboard, tissue, towels, corrugated containers and boxes. The peroxidases of t...
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WO/2011/156708 |
A method to make pulp adapted for forming a corrugated medium, the method includes: cooking chips in a cooking vessel using a caustic carbonated pulping soda/caustic (SC) cooking liquor injected into the cooking vessel; fiberizing the ch...
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WO/2011/151260 |
The present invention relates to a method and use therein for inactivating hydrogen peroxide decomposing enzymes in the production of recycled fiber pulp and/or mechanical pulp comprising providing solid peroxygen to an aqueous process f...
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WO/2011/141692 |
The present invention provides for the optimisation of conditions for treating pulp with a catalyst and hydrogen peroxide to produce a Freeness value (SR) in a web produced from the treated pulp such that the energy required in mechanica...
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WO/2011/141877 |
The present invention relates to a process for the production of a composition wherein the process comprises pre-treating cellulosic fibers by mechanical, chemical and/or enzymatic treatment, mixing the pre-treated cellulosic fibers with...
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WO/2011/134938 |
A process for the production of composite materials comprising nano-fibrillar cellulose gels, by providing cellulose fibres and at least one filler and/or pigment, combining the cellulose fibres and the at least one filler and/or pigment...
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WO/2011/134939 |
A process for manufacturing structured material by providing cellulose fibres and at least one filler and/or pigment, combining the cellulose fibres and the at least one filler and/or pigment, fibrillating the cellulose fibres in the pre...
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WO/2011/131843 |
The present invention relates to a method of manufacturing paper or cardboard, wherein paper or board pulp is diluted with an aqueous composition, which is formed from colloidal-size particles of carbonate and bicarbonate, and other stat...
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WO/2011/119423 |
A process for making bleached pulp comprises contacting an unbleached pulp mixture with a first recycled filtrate obtained from a first location (3) of a first recycled filtrate loop, to obtain a first pulp mixture having a first consist...
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WO/2011/113119 |
The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions us...
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WO/2011/113998 |
The invention relates to a method for improving the properties of a paper product and to the corresponding paper product, wherein the paper product is formed from a fiber-based material. According to the invention the fines fraction is s...
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WO/2011/113126 |
The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions us...
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WO/2011/113126 |
The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions us...
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WO/2011/110745 |
The present invention relates to a method and a reactor for mixing one or more flows into a process liquid flow. Advantageously the method and reactor according to the invention are suitable for introducing such flows into a process liqu...
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WO/2011/110742 |
The present invention relates to a method and apparatus for mixing various flows into a process liquid flow. The inventive method and apparatus are especially preferably suitable for introducing various chemicals into the pulp used in pa...
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WO/2011/110745 |
The present invention relates to a method and a reactor for mixing one or more flows into a process liquid flow. Advantageously the method and reactor according to the invention are suitable for introducing such flows into a process liqu...
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WO/2011/104209 |
A press for dewatering a liquid suspension of a solid biological material comprises a liquid-permeable dewatering drum, which is rotatably mounted in a frame, and a press trough which is adapted to press the liquid suspension against the...
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WO/2011/102760 |
The present invention relates to a method and system for cooking of chemical pulp, and relates in particular to a process for dealing with rejects in conjunction with the cooking of chemical pulp. According to the invention is a chopper ...
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WO/2011/098599 |
A process for pulp bleaching is disclosed wherein an amino acid phosphonic acid is used together with a bleaching agent, pH regulants and pH buffers for pulp treatment in an aqueous medium. The bleaching agent can be represented by oxida...
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WO/2011/095335 |
The present invention provides a method for the drying of microfibrillated cellulose wherein a liquid suspension of cellulose fibres and a liquid carbon dioxide miscible liquid is formed and the liquid suspension is defibrillated. The li...
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WO/2011/088889 |
The present invention relates to a process for producing an oxidised cellulose pulp fibrillar network comprising the following steps: (a) oxidising a cellulose pulp to obtain about 0.3 to 2.5 mmol carboxylic groups per gram cellulose pul...
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WO/2011/089123 |
The present invention relates to a process for producing an oxidised cellulose pulp fibrillar network and a composite with lignocellulosic fibres comprising the following steps: (a)oxidising a cellulose pulp to obtain about0.3 to 2.5 mmo...
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WO/2011/078775 |
The invention concerns a method and an arrangement for the improvement of a wash after completed digestion in a continuous digester (1) for the production of cellulose pulp. According to the invention, the softened chips are exposed to a...
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WO/2011/072718 |
The present invention relates to a process for forming a pulp mixture, the process comprising the steps of: a) providing a wood material and a first liquor, b) treating the wood material in the first liquor in order to release wood fibre...
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WO/2011/075041 |
A drum (130; 202, 204) for an apparatus for processing cellulose-containing pulp, the drum (130; 202, 204) being rotatable about an axis of rotation (302; 203, 205) and having an outer surface (132; 206, 208) permeable to liquid, the out...
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WO/2011/066935 |
The invention relates to compounds in solid form, containing a) one or more manganese complex compounds of the general formula (1), where M is independently selected from manganese in the III or IV oxidation state, X is independently a c...
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WO/2011/067750 |
A wash sponge with a pliable, inner capsule that contains soap and has several holes. When the capsule is squeezed it discharges soap into the sponge. The holes, which are in fact cuts made in the sides of the capsule, serve as a kind of...
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WO/2011/064447 |
The present invention relates to a method of treating and utilizing liquid flows at a chemical pulp mill. The method comprises at least the following stages: a) chemical pulp is produced in an alkaline cooking process, b) the brown stock...
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