Abstract: Embodiments of the invention overcome the shortcomings of prior technologies by infusing nanocellulose in a fibrillated form to enhance the properties of cellulose pulp. These properties may include, for example, the mechanical and barrier properties, i.e., tensile strength, liquid, and gas impermeability such as oxygen, carbon dioxide, and oil, may be improved substantially. Another embodiment of the invention further provide a fibrillated cellulose composite material that include properties of being a strength-enhancing agent, an oligomer, carboxylic acid, plasticizer, an antimicrobial agent, water repellant, and/or a transparent composite.

Abstract: Disclosed herein are systems and methods delignifying and depolymerizing lignocellulosic biomass into an aromatic species-rich fraction and a carbohydrate-rich fraction. The resultant fractions can be used as raw materials to produce value-added goods from biogenic carbon.

Abstract: In one example, a process includes providing a system with a first vessel and a second vessel; providing a biomass comprising lignin, hemicellulose and cellulose fibers into said first vessel; providing an aqueous acidic composition comprising an acid; providing a modifier component; providing a peroxide component; exposing said biomass to said sulfuric acid, modifier and peroxide components, creating a reaction mass; mixing said reaction mass; and allowing said sulfuric acid component and peroxide component to come into contact with said biomass for a period of time sufficient to a delignification reaction to occur and remove a pre-determined amount of said lignin from said biomass. The pre-determined amount may be assessed by determining a first remaining peroxide concentration in the reaction mass, with a suitable apparatus, when said first remaining peroxide concentration is reached, the biomass is transferred to said second vessel.

Abstract: The present invention provides a novel method and composition for enhancing the efficiency of starch adsorption (i.e., starch trapping) from starch-containing furnishes comprising high content of recycled fibers for use in paper making processes such as pulp, paper, or board production. A novel polymer coagulation system is disclosed in which two quick inversion cationic emulsion polymers (starch trapping polymers A and B) are co-mixed at optimal blend ratios to meet specific recycled fiber and process water requirements for different recycled fiber plants and added to furnishes prior to formation of paper or board in a paper machine. Co-mixed solutions of starch trapping polymers A and B provide synergistic enhancements in (i) starch trapping efficiency and (ii) starch retention in the produced paper or board over equivalent dosage levels of singly administered polymer A, polymer B, or conventional starch trapping products, without over-flocculation or formation of stickies.

Abstract: An apparatus includes: a defibrating unit that defibrates a material to turn it into fibers; a fiber piling-up unit that piles up the fibers to form a second web; a pressing portion that presses the second web to turn it into a sheet; and a humidifying mechanism that supplies humidified air to the fiber piling-up unit. The fiber piling-up unit includes a rotating portion that stirs the fibers supplied from the defibrating unit, a case in which the rotating portion is housed, and a mesh belt that is provided under the case and transports the second web in a transportation direction. The second web is formed on the mesh belt by piling up the fibers on the mesh belt. The humidifying mechanism includes a downstream-side nozzle that is provided downstream of the fiber piling-up unit in the transportation direction and supplies the humidified air to the fiber piling-up unit.

Abstract: A process for recycling lignocellulosic fibers from a fiberboard (100) comprising compressed lignocellulosic fibers bonded together by a binding agent. The process comprises the steps of: —disintegrating (101) the fiberboard (100) to provide fiberboard pieces (110); —steaming (111) the fiberboard pieces (110) to decompress and release the lignocellulosic fibers by hydrating them, as well as hydrolyzing the binding agent; —releasing the overpressure; —removing excess water vapor to provide portions (120) comprising released lignocellulosic fibers; and —separating (121) the lignocellulosic fibers in the portions (120) comprising released lignocellulosic fibers to provide recycled lignocellulosic fibers (130).

Abstract: A sheet manufacturing apparatus 1 includes a quantitative feeder unit 15 that measures a predetermined amount of a raw material C and feeds the measured raw material C, a defibration unit 31 that defibrates the raw material C fed from the quantitative feeder unit 15 into fibers, a third unit group 103 that deposits and compresses the fibers and forms the fibers into a sheet, a first frame F1 to which the quantitative feeder unit 15 is fixed, and a second frame F2 that is separated from the first frame F1 and to which the defibration unit 31 is fixed.

Abstract: The present invention relates to a process for manufacturing a barrier film, wherein the method comprises: —providing an aqueous suspension comprising at least 70 weight-% highly refined cellulose pulp having an SR value of 70-95 and having a content of fibers having a length>0.2 mm of at least 10 million fibers per gram based on dry weight: —forming a wet web; —dewatering and/or drying to form a substrate; —calendering said substrate in at least a first calender nip and a second calender nip; —providing said substrate with at least one first layer of a barrier chemical to form a coated substrate, wherein each first layer has a coat weight of 0.5-5 gsm, and wherein a total coat weight on of the first layers is ?8 gsm, and—drying to form said barrier film having a thickness of <50 ?m. The invention relates also to a barrier film, a barrier film laminate with a polymer layer and a packaging material comprising the barrier film.

Abstract: The present application relates to a system and a method for the removal of non-process elements, such as K+ or Cl?, from electrostatic precipitator ashes in a kraft pulp process comprising the addition of a strong acid containing sulfur and CO2 in separate steps in the ash treatment step.

Abstract: Disclosed herein is a hygromorphic composite material comprising a moisture-active pollen paper substrate formed from a plurality of pollen microgel particles, and at least one moisture-inactive layer applied onto the top and/or bottom surface of the moisture-active pollen paper substrate with a pattern that causes the hygromorphic composite material to change its shape in a pre-determined manner due to a change in relative humidity of its ambient environment. Also disclosed herein is a method of forming the hygromorphic composite material.

Abstract: There is provided a dispersion device including: a dispersion section that has a chamber and that stirs and disperses a material containing fibers in the chamber; and a supply pipe coupled to the chamber and supplying the material to the chamber together with air, in which the supply pipe has a first portion located on a chamber side and extending in a first direction, a second portion extending in a second direction intersecting the first direction, and a third portion coupling the first portion and the second portion, and in at least one of the first portion, the second portion, and the third portion, a cross-sectional shape of an internal flow path is an elongated shape having a short axis and a long axis.

Abstract: According to an example aspect of the present invention, there is provided. an apparatus and a method for treating mixtures of liquids and solids. The apparatus comprises a casing and a rotor mounted inside the casing and having an inner volume delineated by an outer surface. The outer surface is provided with flow connections to the inner volume and configured to be rotated within the casing. The casing and the rotor are set in a vertical position.

Abstract: The present disclosure relates to a process for treatment of biomass, specifically for pulping and biorefinery applications. The process relates to an organosolv process using high boiling organic solvents for the extraction of high molecular weight lignin and other products from the solution of pulping liquor, by using recycled liquor as the white liquor for pulping. The disclosure also relates to byproducts of pulp & paper industry such as lignin. C5 & C6 sugars.

Abstract: A separation device includes: a defibrating section that defibrates a material containing a fiber; and a separation section that includes a rotating member, a first ejection portion, a first suction portion, a second ejection portion, and a second suction portion, the rotating member being at least partially composed of a mesh, the first ejection portion ejecting a defibrated material generated in the defibrating section onto a first surface, the first suction portion sucking the defibrated material via the mesh to remove foreign matter, the second ejection portion having a second ejection port that ejects air toward the defibrated material from which the foreign matter on the first surface has been removed, the second suction portion sucking and collecting the defibrated material peeled off from the mesh by the air ejected from the second ejection port, in which the second ejection portion includes a nozzle having a first portion and a second portion, the first portion being a portion in which a cross-sectio

Abstract: A treatment vessel for treating lignocellulosic material comprises a main section having a first end and a second end, and an outlet section that is conical or frustoconical and tapers from a first end joined to the second end of the main section towards a second end having an outlet opening. A conical body is arranged within the treatment vessel, the vertex of the conical body pointing away from the main section. The conical body is positioned such that the base thereof is positioned within a perpendicular distance (d) from a transition plane (T) defined by the junction between the first end of the outlet section and the second end of the main section, wherein the perpendicular distance (d) is ¼ or less of the diameter (D) of the main section. A half angle (?) of the conical body is 0.5-20° less, preferably 5-15° less, such as 10° less, than a half angle (?) of the outlet section.

Abstract: A material storage apparatus includes: a material storage portion configured to store scraps of paper and including a material container and a lid, the material container having a material inlet enabling the scraps of paper to be input into the material container, the lid being configured to open and close the material inlet; a humidification portion including a first blower and configured to supply humidified air into the material container; and an air circulation portion including a second blower and configured to suck air in the material container, and when the lid is open, the material container has a negative pressure.

Abstract: A cooking method and a digester system wherein partly digested cellulosic fiber source is compressed during cooking to provide high molecular weight xylan, high molecular weight lignin and pulp.

Abstract: The present invention relates to a method for manufacturing a multilayer film comprising highly refined cellulose fibers, the method comprising the steps of: a) forming a first wet web by applying a first pulp suspension comprising highly refined cellulose fibers on a first wire; b) partially dewatering the first wet web to obtain a first partially dewatered web; c) forming a second wet web by applying a second pulp suspension comprising highly refined cellulose fibers on a second wire; d) partially dewatering the second wet web to obtain a second partially dewatered web; e) joining the first and second partially dewatered web to obtain a multilayer web; and f) further dewatering, and optionally drying, the multilayer web to obtain a multilayer film comprising highly refined cellulose fibers.

Abstract: This application provides a paper pulp, a method for producing paper pulp, and a paper pulp product. The method for producing paper pulp includes: crushing bamboo shoot shells to obtain crushed materials; mixing the crushed materials with cooking, cooking the mixture to obtain slurry; washing the slurry to obtain waste liquid and washed slurry; purifying the washed slurry to obtain the paper pulp.

Abstract: A foam control agent and method of controlling foam for paper or pulp production by use of a foam control agent, wherein the agent comprises at least a branched alcohol.