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JP6474897B2 |
The present invention relates to a process for the production of treated pulp comprising the steps of: i. providing a fibre source material; ii. subjecting the fibre source material to pre-hydrolysis; iii. subjecting the pre-hydrolysed f...
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JP6472758B2 |
A bleached softwood kraft pulp fiber with high α-cellulose content and a low CED viscosity is provided, A surfactant treated fiber useful in the production of chemical derivatives is also described. Methods for making the kraft pulp fib...
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JP2019007128A |
To provide a dissolution pulp containing Acacia crassicarpa, a cellulose composition, a recycled cellulose fiber and textile and a use of the composition for manufacturing the dissolution pulp.There are provided a method for preparing a ...
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JP2018204158A |
To provide a production method of a dissolved pulp from a lignocellulose, capable of increasing cellulose content with an easy method.The production method of a dissolved pulp contains pre-hydrolysis treatment of a lignocellulose, follow...
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JP6444806B2 |
There is provided a dissolving pulp, a cellulosic composition, a composition, regenerated cellulose fibre and a textile comprising Acacia crassicarpa. There is provided the use of the compositions for preparing a dissolving pulp. There i...
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JP2018188502A |
To provide an NC recovery method for recovering pulp and lignin from a weed chip or a fibrous vegetable milling body by digesting wood or fibrous vegetables at ordinary pressure without using special reaction containers, agents or solven...
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JP6423838B2 |
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JP6409486B2 |
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JP6398388B2 |
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JP6363596B2 |
The present invention provides a pulping method. Caustic soda is replaced with cheap lime to manufacture pulp in high efficiency, and meanwhile complexation, flocculation and acid-base neutralization of aluminum sulfate are further utili...
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JP6358771B2 |
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JP6334083B2 |
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JP6305715B2 |
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JP6290244B2 |
The invention relates to a method for producing cellulose from material containing lignocellulose by means of sulfite decomposition or sulfate decomposition in the presence of a salt of dithionous acid, characterized in that the salt of ...
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JP6280417B2 |
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JP6242859B2 |
A surfactant treated bleached softwood kraft pulp fiber, useful as a starting material in the production of cellulose derivatives including cellulose ether, cellulose esters and viscose, is disclosed. Methods for making the kraft pulp fi...
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JP6242816B2 |
A method of digesting lignocellulosic material includes the steps of providing the lignocellulosic material and a caustic composition having a pH of at least about 10. The caustic composition includes water, an alkaline- or alkaline eart...
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JP6221218B2 |
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JP6218807B2 |
Methods for producing dissolving grade pulp and microcrystalline cellulose from tobacco are provided. The methods include chemical pulping a tobacco input to form a tobacco pulp. Chemical pulping the tobacco input includes combining the ...
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JP6219845B2 |
A bleached softwood kraft pulp fiber with high alpha cellulose content and improved anti-yellowing is provided. Methods for making the kraft pulp fiber and products made from it are also described.
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JP6197717B2 |
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JP2017526835A |
The pretreated biomass is exposed to high frequency pulses and shear forces without denaturing / degrading the individual components of the biomass. Next, compressive force is applied to the biomass to separate the first liquid fraction ...
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JP6196022B2 |
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JP6187619B2 |
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JP2017119942A |
To provide bleached softwood kraft pulp fiber with high α-cellulose content and improved anti-yellowing properties.This disclosure also describes methods for making the kraft pulp fiber and products made by the methods. The fiber descri...
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JP6158312B2 |
An advantageous and effective process for obtaining carboxymethyl cellulose (CMC) from agro-industrial residues, comprising the steps of a) Preparing the raw material, wherein the raw material is washed, dried, grounded and washed again;...
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JP2017040029A |
To provide a digestion assistant for lignocellulosic material capable of extremely enhancing pulp yield and pulp quality (whiteness, ratio tensile strength, ratio tear strength and reduction of kappa value or the like).A digestion assist...
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JP6075976B2 |
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JP6019216B2 |
A method for preparing a black liquor according to the present invention comprises digesting a tobacco raw material under an alkaline condition to obtain the black liquor. Further, a method for preparing a flavor component-containing liq...
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JP5989777B2 |
The method is for the preparation of kraft pulp with increased pulping yield from lignin-containing cellulosic material using polysulfide cooking liquor. In order to increase carbohydrate stabilization and hence the yield from a kraft co...
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JP5953909B2 |
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JP5936206B2 |
The present invention relates to an integrated process, which comprises a single cell oil production process, and a pulp and/or paper industry process. The process comprises that in the single cell oil production process is used a microo...
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JP5938979B2 |
To efficiently obtain plant fibers from a plant-based raw material, that is difficult to delignify, by oxidizing a lignin component contained in the plant-based raw material under mild conditions, the fibers containing cellulose and hemi...
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JP5926364B2 |
A biomass processing method including: feeding biomass to an upper reactor inlet; adding liquor to the biomass to create a liquid level below an upper biomass level; treating the biomass; discharging the treated biomass from a bottom rea...
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JP5915263B2 |
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JP2016017106A |
To provide high-quality dissolving pulp suitable for viscose rayon use.Dissolving pulp is produced from lignocellulose and characterized by containing at least one or more kinds of surface modifier. The surface modifier contains at least...
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JP2015209615A |
To provide a method of producing fluffed pulp which is low-energy and is excellent in water absorption without execution of a chemical treatment.Fluffed pulp is obtained by fibrillating pulp containing sulfite pulp by a mechanical treatm...
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JP2015206136A |
To provide a method for producing dissolved pulp satisfying an ultrahigh purity (α cellulose content>97%), a high polymerization degree (η>700) and a high whiteness (ISO brightness>90).Provided is a method for producing dissolved pulp ...
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JP2015200056A |
To provide a method of producing dissolved craft pulp continuously and efficiently and thereby producing saccharides and furfural from the hydrolysis liquid in high concentrations.A method of producing dissolved craft pulp continuously i...
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JP5808795B2 |
A method for pulp processing used in connection with a pre-hydrolysis kraft process (PHKP) includes adding wood chips or similar material to a reaction vessel, performing pre-hydrolysis, and neutralizing the mixture with a first quantity...
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JP5796850B2 |
An apparatus to pulp thin wood chips including: a chip screen receiving chips of comminuted cellulosic material, the screen assembly including a screening assembly which outputs thin chips; a chip bin and conveyor assembly receiving the ...
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JP5786087B2 |
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JP5783453B2 |
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JP5752215B2 |
The invention is lyocell fiber characterized by a pebbled surface as seen at high magnification and having a variable cross section and diameter along and between fibers. The fiber is produced by centrifugal spinning, meltblowing or its ...
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JP5727993B2 |
A method for inhibiting the formation, deposition and adherence of calcium salt scale to metallic and other surfaces in the equipment, vessels and/or piping of a chemical pulp process facility comprising adding an effective scale inhibit...
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JP5712754B2 |
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JP5694513B2 |
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JP5669762B2 |
The invention provides a composition of matter and a method, which enhance the process of mechanically pulping paper precursors. The composition of matter includes a small quantity of a reducing agent and a source of alkali. When added t...
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JP2015030949A |
To provide a technique of producing high-quality dissolving kraft pulp efficiently.A method of producing dissolving kraft pulp includes (a) a step of adding water to wood chips to hydrolyze hemicellulose contained in the wood chips, (b) ...
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JP2015016430A |
To provide a method for adding a defoaming agent capable of simply enhancing a degree of foaming suppression obtained per an amount of addition of the defoaming agent to a remarkably foaming water system in a kraft pulp production proces...
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