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WO/2020/192432A1 |
Disclosed herein is a method for catalytically decomposing a lignocellulosic raw material, comprising: using an organic solvent to pre-treat the lignocellulosic raw material, adding a solid acid catalyst to perform boiling after the pre-...
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WO/2020/188306A1 |
The object of the invention is a method for recycling waste paper containing plant-based fibres at least partially coated with a wet-strengthening material. The characteristic feature of the invention is that the waste paper (H) is conve...
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WO/2020/181884A1 |
A production method of a double-layer soluble paper towel made of pure wood pulp, comprising imported bleached softwood and hardwood pulp plates, wherein the production method sequentially comprises the following steps: raw material disp...
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WO/2020/173963A1 |
The present invention relates to a biological process for reducing the level of deposits formed in water bearing systems used in the processing of cellulose, especially water bearing systems used in the production of paper.
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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...
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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...
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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...
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WO/2020/141589A1 |
The purpose of the present invention is to provide a method for producing a pulp fiber raw material suitable as a cellulose raw material. This invention is as follows. A method for producing pulp fiber raw material as a cellulose raw m...
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WO/2020/133856A1 |
The present invention belongs to the field of paper technologies and new materials, and specifically relates to a method for preparing a biomechanical primary color pulp from wheat straw. The present invention involves first pre-treating...
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WO/2020/133857A1 |
Disclosed is a method for preparing a biomechanical unbleached pulp from grass straw, wherein same is obtained by treating grass as a raw material with an alkaline biological enzyme, then subjecting same to a heating treatment by means o...
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WO/2020/096014A1 |
The present invention provides a method for manufacturing pulp fibers for cellulose nanofiberization from pulp fibers contained in used sanitary products. This method for manufacturing pulp fibers for use in obtaining cellulose nanofiber...
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WO/2020/096013A1 |
An objective of the present disclosure is to provide a method for producing recycled pulp fibers that have a low hemicellulose content and are useful for various applications. The present disclosure comprises the following feature. A met...
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WO/2020/096542A1 |
The invention is related to obtaining regenerated cellulose fiber by using supercritical-N2O and/or supercritical-CHF3 compounds from cotton straw which are formed as thin chips mechanically.
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WO/2020/092479A1 |
A grafted polyvinyl alcohol polymer has a balance between hydrophilicity and hydrophobicity. The grafted polyvinyl alcohol polymer has a chemical functionality that allows for adsorption onto the pulp fibers, polymer film formation upon ...
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WO/2020/087201A1 |
A comprehensive preparation method for bamboo biological extracts and bamboo fibre, comprising: (1) preparing bamboo shavings; (2) extracting bamboo green extract and bamboo shavings polysaccharide mixed crude extract; (3) separating the...
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WO/2020/084188A1 |
The invention relates to a backing material layer suitable for use as a layer of a release liner, wherein the backing material layer comprises bleached chemical pulp, and bleached recycled release liner pulp. The invention further relate...
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WO/2020/065238A1 |
The present invention relates to a process for recovering starch present in paper and/or cardboard, by: [a] preparation of an aqueous suspension A of fibres, [b] treatment of the aqueous suspension A and formation of two fractions: - fra...
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WO/2020/039141A1 |
The present invention relates to the use of at least one sugar ester as a deinking agent, by flotation of an aqueous suspension of recovered paper. The present invention also relates to the method for deinking recovered paper using a sug...
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WO/2020/016241A1 |
The present invention relates to a process for the controlling the sodium and sulfur levels in a pulp mill, comprising the steps of: a) providing a pulp mill stream comprising sulfide and having a total alkali concentration of at least 2...
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WO/2020/010728A1 |
A dissolving pulp preparation method comprises: S1) steaming and cooking wood chips to acquire a brown stock; S2) subjecting the brown stock to oxygen delignification to acquire an oxygen-delignified stock; S3) mixing the oxygen-delignif...
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WO/2019/229228A1 |
The present invention relates to treatment of dissolving pulp with a lytic polysaccharide monooxygenase. The lytic polysaccharide monooxygenase treatment results in reduced viscosity and/or improved viscosity control in the dissolving pu...
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WO/2019/227285A1 |
Provided are compositions and processes concerning efficient downstream processing of products derived from organic acids pretreatment of plant materials.
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WO/2019/220014A1 |
A method for producing pulp suitable for dissolution of cellulose and hemicellulose from never-dried high viscosity paper pulp congaing metal ions and a method for producing a fiber spinning solution from cellulose and hemicellulose. Acc...
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WO/2019/206994A1 |
Engineered variant polypeptides having lipase enzyme activity, compositions comprising the enzymes, and methods of making and using the enzymes. The genetically engineered lipase enzymes are useful in many different applications such as ...
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WO/2019/201765A1 |
The invention relates to qualitative or quantitative determination of chemical compounds or classes of compounds in heterogeneous waste comprising biodegradable and non- biodegradable matter. The method may especially be used for identif...
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WO/2019/195802A1 |
Provided herein are compositions comprising an oil-in-water emulsion, wherein the emulsion comprises a liquid oil component; a cross-linked homopolymer based on acrylic acid and/or a cross-linked copolymer of acrylic acid and acrylic aci...
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WO/2019/187823A1 |
The present invention addresses the problem of developing a technology for efficiently manufacturing deinking pulp from printed material printed with UV ink. A method of manufacturing deinking pulp according to the present invention comp...
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WO/2019/177826A1 |
Methods and systems are provided for producing market pulp which include treatment of pulp before pulp drying. An anionically charged compound and enzyme are used to treat pulp before pulp drying to improve pulp dewatering performance an...
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WO/2019/170027A1 |
Disclosed are a biological enzyme preparation for a specific complex and a method for treating plant raw materials with the biological enzyme preparation for a specific complex. The biological enzyme preparation for the specific complex ...
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WO/2019/164908A1 |
Provided are purified cannabis hurd fiber, and refined cannabis hurd fibers, and methods for preparing cellulosic fiber from the hurd of cannabis plants. The methods include decorticating the bast from the hurd, at least partially fibril...
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WO/2019/143802A1 |
The present invention includes a method for dissolving cellulose comprising dissolving cellulose in an ionic liquid and a co-solvent, wherein the ionic liquid is an imidazolium-based ionic liquid with, e.g., a halide or acetate as the an...
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WO/2019/123580A1 |
The present invention provides a method which, in the process of manufacturing recycled pulp fibers from a mixture of pulp fibers and a high water-absorption polymer, enables efficient manufacturing of the recycled pulp fibers while prop...
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WO/2019/123766A1 |
The purpose of the present invention is to provide a recycled pulp fiber manufacturing method with which it is possible to easily obtain recycled pulp fibers containing less of a high water-absorption polymer without requiring any mechan...
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WO/2019/123579A1 |
Provided is a method for producing pulp fibers to be saccharified, whereby it becomes possible to reduce the amount of a highly water-absorbable polymer and therefore increase the collection efficiency in the production of a saccharified...
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WO/2019/123765A1 |
The purpose of the present invention is to provide a recycled pulp fiber manufacturing method with which it is possible to easily inactivate and degrade a high water-absorption polymer using a single chemical. This method is for manufact...
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WO/2019/120852A1 |
The present invention relates to novel polypeptides with xylanase activity, especially xylanase variants, such as genetically engineered xylanase variants, which show improved thermostability, improved resistance against acid treatment a...
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WO/2019/115882A1 |
The invention relates to a method for treating aqueous feed by dissolved gas flotation, especially by dissolved air flotation (DAF), the aqueous feed originating from an industrial processing of fibrous material of cellulosic origin, suc...
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WO/2019/115793A1 |
The present invention relates to methods for obtaining baobab fibres from baobab trees. The methods comprise obtaining baobab plant material, dewatering said baobab plant material and separation of the dewatered baobab vegetable material...
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WO/2019/092317A1 |
The invention relates to a method for manufacturing a fibrous web, such as web of paper, board, tissue or the like. The method comprises obtaining at least one fibre suspension of lignocellulosic and/or cellulosic fibres and feeding the ...
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WO/2019/056406A1 |
Disclosed is a process for making paper by recycling waste paper, the process comprising (1) purchasing waste paper; (2) crushing the waste paper; (3) removing residue at a high concentration; (4) coarse screening same; (5) fine screenin...
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WO/2019/025449A1 |
The present invention generally relates to the field of celluloses, in particular nanocelluloses, and more particularly to methods for producing cellulosic fibres and defibrillating cellulosic substrates. In particular, the invention rel...
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WO/2019/014738A1 |
Cleaning process for recycling Kraft paper in packaging of the cement-bag type and other, similar packaging (1), comprising the cleaning process for recycling, and the packaging may be deformed in any way (2); the packaging will undergo ...
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WO/2019/003657A1 |
In this method for producing recycled fibers by removing superabsorbent polymers from fibers containing superabsorbent polymers, recycled fibers are efficiently produced while the superabsorbent polymers are suitably removed from the fib...
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WO/2019/003658A1 |
The purpose of the present invention is to provide a method for producing recycled pulp fibers such that articles using the recycled pulp fibers can easily achieve a uniform whiteness and users are not prone to feel psychological resista...
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WO/2019/003655A1 |
The purpose of the present invention is to provide a method which is for producing pulp fibers for cellulose nanofiberization from pulp fibers of used sanitary products, and which can produce pulp fibers for cellulose nanofiberization th...
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WO/2019/003656A1 |
The purpose of the present disclosure is to provide a method for producing pulp fibres for saccharification from the pulp fibres of used sanitary items, said pulp fibres for saccharification having low lignin contents distributed within ...
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WO/2019/002691A1 |
The present invention provides a method and system for measuring disintegration of a fibrous product. The method comprises disintegration of a sample of the fibrous product in an aqueous solution, optionally promoted by mechanical energy...
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WO/2018/234635A1 |
The invention relates to a method for manufacturing a fibrous web, such as web of paper, board, tissue or the like. The method comprises forming an aqueous fibre suspension comprising cellulosic fibres from one or more raw material flows...
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WO/2018/231052A1 |
The invention relates to a process for obtaining cellulose or a cellulose- containing substance from plant material, the process comprising - providing mashed plant material having a water content of at least 10 wt.% then - subjecting th...
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WO/2018/202673A1 |
The invention relates to a method for treating biomass(2). Biomass (2) is fed to a pressurized prehydrolysis reactor unit (8) by means of a feeding system (5, 7), wherein by means of the feeding system (5, 7) the biomass (2) is compresse...
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