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Matches 401 - 450 out of 689

Document Document Title
JP6796148B2
A cooking method and a digester system wherein partly digested cellulosic fiber source is compressed during cooking to provide high molecular weight lignin and pulp.  
JP6702959B2
A method for producing a modified cellulosic material is provided including treating a lignocellulosic material with an acid and/or an alkali and then a polyol. Also provided are methods of producing a paper-based product and a cellulose...  
JP6581137B2  
JP6522274B2  
JP6518287B2  
JP6483021B2  
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 ...  
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...  
JP6423838B2  
JP6329705B2
The invention is related to a method for the preparation of kraft pulp with increased pulping yield from lignin-containing cellulosic material using polysulfide cooking liquor. In order to obtain a cost efficient system both in aspects o...  
JP6305715B2  
JP2017535690A
The present invention relates to the chemical industry and relates to a method of further specifying and producing cellulose from paper, textile industry, and various cellulose materials for the industry of other sections (an object for ...  
JP2017526835A
The pretreated biomass is exposed to a radiofrequency pulse and shearing force, without denaturing / degrading each ingredient of the biomass. Next, compressive force is applied to the biomass and a part for the 1st fluid drawing is sepa...  
JP2016121409A
To provide an impregnation promoter for pulp production allowing for improvement of cooking efficiency by improving impregnation property of a cooking liquor to a raw material chip.The impregnation promoter for pulp production is provide...  
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...  
JP5734572B2
A method for generating steam in a digester plant of a chemical pulp mill including: producing black liquor in the digester plant, extracting a first stream of black liquor from the digester; generating vapor by evaporating the first str...  
JP5712754B2  
JP5687693B2
A method for producing a saccharification pre-processed material capable of producing a saccharification pre-processed material, in which lignin is sufficiently dissociated, when lignocellulose-based biomass is pre-processed with ammonia...  
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...  
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) ...  
JP5634410B2
Biomass is pretreated using an organic solvent solution under alkaline conditions in the presence of ammonia and optionally an additional nucleophile to fragment and extract lignin without loss of hemicellulose. Pretreated biomass is fur...  
JP5632151B2
Composite panels and pulp, and paper products of the pulp, are produced from Arundo donax. In the fabrication of the composite panels, Arundo donax is comminuted to a suitable size, combined with a binder, and consolidated into panels th...  
JP2014218761A
To improve the digestibility of wood chips of broad-leaved trees compared to the prior art.In the kraft pulp digestion method, wood chips of broad-leaved trees are immersed in acid solution, thereby controlling the content of wood compon...  
JP5469588B2
Plate elements, a plate configuration, and associated system for thermomechanical refining of wood chips wherein destructured and partially defibrated chips are fed to a rotating disc primary refiner, where opposed discs each have an inn...  
JP2014034744A
To provide a method for producing dissolving pulp while performing stable hydrolysis to efficiently remove hemicellulose, in a method for producing dissolving pulp by pre-hydrolysis treatment.In a method for producing dissolving pulp, wh...  
JP2014009412A
To provide water dispersion paper that has rapid water dispersion and high strength (printability), and in which a paper surface pH is 6-8 (neutral region).The water dispersion paper is characterized by including a pulp obtained by that ...  
JP5360546B2
A pulp production process can produce pulp at high yield without using sodium sulfide and high-temperature/high-pressure conditions if compared with the Kraft process and also collect lignin. Pulp is produced by processing wood chips for...  
JP5346493B2
A processing system for converting cellulosic material to pulp comprises a first pressurized reactor vessel (10) operating at a pressure above atmospheric pressure. The first reactor vessel (10) includes: a material input receiving cellu...  
JP5302485B2
Composite panels and pulp, and paper products of the pulp, are produced from Arundo donax. In the fabrication of the composite panels, Arundo donax is comminuted to a suitable size, combined with a binder, and consolidated into panels th...  
JP5292075B2
The invention concerns an arrangement and a method for the steam pre-treatment of chips during the production of cellulose pulp. With the aim of avoiding the blow-through of gases in the steam pre-treatment vessel (1) and in this way pre...  
JP5212806B2  
JP5207191B2
A method of pretreating comminuted fibrous material with sodium carbonate and then cooking the pretreated material in the presence of anthraquinone (AQ) is provided. The resulting pulp produced has a higher yield, enhanced strength, and ...  
JP5193599B2  
JP2013049278A
To provide composite panels and pulp which are produced from Arundo donax (a type of grass).Arundo donax is comminuted (20) to a suitable size, combined with a binder (40, 50), and consolidated (80) into panels that meet standards for co...  
JP5158655B2  
JP5114629B2  
JP4977086B2
Chemical pulp is produced from a slurry of comminuted cellulosic fibrous material using a beneficial additive such as AQ, or polysulfide. In the first treatment zone the effective alkali concentration and temperature conditions are such ...  
JP4951615B2  
JP2012081760A
To provide composite panels that are fabricated from Arundo donax (one kind of grass), and to provide pulp produced from the Arundo donax.In the fabrication of the composite panels, Arundo donax is comminuted 20 to a suitable size, combi...  
JP4921707B2
This invention is a method of reducing the resin content of chemical pulps comprising heating wood chips in an aqueous alkaline medium in the presence of an effective deresinating amount of an alkyl alcohol alkoxylate of formula RO[(CH2C...  
JP4918707B2  
JP4907345B2
A thermally modified microbial-derived cellulose material is described for use as an implantable material in general surgery, plastic surgery and neurosurgery.  
JP4823317B2
A method of producing a chemi-mechanical pulp from a raw material comprising wood chips. According to the method, first, the wood raw material is steamed at an elevated temperature to remove air from the wood chips, then, at the impregna...  
JP4757505B2
A disperger plate segment (14), for removing contaminants from recycled, or recovered, paper and packaging materials includes radially concentric rows (26) of teeth (28). Each row of teeth includes teeth (28) and channels (30) disposed i...  
JP2011522970A
Apparatus for dampening fibrous material using the alternating pressure process with an airtight and vapor-tight housing (1), with a vacuum line (6), wherein a first directional valve (7) is provided in the vacuum line (6), the housing (...  
JP2011047057A
To promote the action of a chemical for papermaking on a chip by allowing the chemical for the papermaking to penetrate into the inside of the chip.The chemical-containing chip for the papermaking is produced by (A) freezing a chip, (B) ...  
JP2010280219A
To provide a composite material panel which is made from an Arundo donax (one kind of a grass), and to provide a pulp produced from the Arundo donax.The Arundo donax is finely broken (at the step 20) to a suitable size, and binders are a...  
JP2010255171A
To provide a lignocellulosic material treating process settling the conventional defects.There is provided a continuous process for producing a chemical grade pulp, which process includes the steps of: (a) steaming lignocellulosic materi...  
JP4538235B2
The invention relates to a method for the modification of cellulose fiber with the object of increasing the strength properties of the pulp. Cellulose derivative, preferably in the form of CMC, is added in association with alkali cooking...  
JP4488788B2
A method for converting a vapor phase continuous digester to a hydraulic digester including the steps of: operating the vapor phase digester in a vapor phase mode wherein a chip slurry enters the vessel of the digester through a lower ch...  

Matches 401 - 450 out of 689