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7608167 |
Crosslinked carboxyalkyl cellulose fibers having permanent and non-permanent crosslinks
Substantially water-insoluble, water-swellable, non-regenerated, carboxyalkyl cellulose fibers, wherein the fibers have a surface having the appearance of the surface of a cellulose fiber, and...
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7604714 |
Methods for the preparation of crosslinked carboxyalkyl cellulose fibers having permanent and non-permanent crosslinks
Methods for making substantially water-insoluble, water-swellable, non-regenerated, carboxyalkyl cellulose fibers, wherein the fibers have a surface having the appearance of the surface of a...
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7541396 |
Method for making carboxyalkyl cellulose
Methods for making the carboxyalkyl cellulose.
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7501041 |
Bleached, mechanical paper pulp and the production method therefor
This invention relates to bleached mechanical paper pulps, based on fibrillated fibres of cellulose, hemicelluloses and lignin, containing calcium carbonate, in which calcium carbonate is...
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7445691 |
Impregnation of chips with an acid liquid prior to a sulphate pulping process
The method is for pre-treatment of chips that are fed to a sulphate cooking process. Through acidification of the chips in an acidic treatment fluid with a subsequent draining of free treatment...
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7419568 |
Chemically cross-linked cellulosic fiber and method of making same
The present invention relates to cross-linked cellulosic fiber having improved absorbency characteristics when compared to conventional cross-linked fibers. The cross-linked cellulosic fiber is...
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7396435 |
Method for conveying, mixing, and leveling dewatered pulp prior to drying
Methods for conveying, mixing, leveling, and flaking dewatered pulp to produce pulp flakes suitable to be used in a dryer. Methods for producing a consistent flow rate of pulp, and, for producing...
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7390378 |
Method of curling fiber and absorbent sheet containing same
A method of providing papermaking fibers with durable curl comprising: a) introducing papermaking fiber into a rotatable drum adapted for operation at elevated pressure; b) rotating the drum...
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7381294 |
Method and apparatus for manufacturing microfibrillated cellulose fiber
A method for producing a microfibrillated cellulose, which comprises subjecting a slurry containing a pulp having a solids concentration of 1 to 6 wt % to the treatment with a disc refiner...
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7300539 |
Treatment of solid containing material derived from effluent
A method of treating solid containing material derived from effluent or sludge from a plant for deinking paper, the material containing calcium in the form of one or more insoluble calcium...
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7294227 |
Method and system for the treatment of pulp prior to ozone bleaching
A system for treating pulp comprises a dewatering device ( 2 ) for dewatering the pulp to a fiber concentration of at least 20%, a closed pulp-shredding vessel ( 16 ) for shredding the dewatered...
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7291247 |
Absorbent sheet made with papermaking fibers with durable curl
A process for bleaching high bulk cellulosic fiber and producing a durable elevated curl index includes: (a) concurrently bleaching, heat treating and convolving cellulosic fiber pulp at elevated...
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7264690 |
Catalyzer for clean pulping and process for using the same
A catalyzer for clean pulping includes sodium salicylate, anion silicate softener, cooking aids, liquid(gaseous) chlorine and water. A process for using the catalyzer for clean pulping includes the...
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7264689 |
Method of chemically loading fibers in a fiber suspension
A method of continuously loading fibers in a fiber suspension with calcium carbonate. The fibers include a fiber wall surrounding a lumen. A reactant solid in the form of calcium oxide and/or...
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7214291 |
Method for the modification of cellulose fibres
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...
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7201825 |
Process for making a flowable and meterable densified fiber particle
Discrete particles of cellulosic material are flowable and meterable. They are easily dispersible in an aqueous or a dry medium. The particles comprise singulated cellulose fibers that have been...
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7195694 |
Reinforcing and/or process fibres based on vegetable fibres and production thereof
The present invention relates to reinforcing and/or process fibres based on vegetable fibres whose elementary fibres are fibrillated and to a process for their production. The reinforcing and/or...
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7179347 |
Method for fiber stock preparation
A method for the preparation of fiber stock for the production of paper or cardboard, including the steps of:
a) Supplying fibers in the form of a suspension that has a predetermined solids...
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7175792 |
Method for producing cellulose shaped-bodies
Process for manufacture of cellulose mouldings, such as fibres, filaments, or films, from TCF-bleached or ECF-bleached cellulose, in which the bleached cellulose is dissolved in an aqueous tertiary...
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7169258 |
Process and a fluffer device for treatment of a fiber stock suspension
A device treats a fiber stock suspension with at least one additive, the fiber stock suspension being used for production of at least one of paper and cardboard. The fiber stock suspension includes...
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7166190 |
Methods for forming a fluted composite
Methods for forming an absorbent fibrous composite containing absorbent material dispersed in bands through the composite and along the composite's length are disclosed. The methods generally...
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7115187 |
Method and device for continually producing a suspension of cellulose in an aqueous amine oxide
The invention relates to a method for continually producing a suspension of cellulose in an aqueous tertiary amine oxide. The method includes (a) mixing cellulose and an amine oxide-free aqueous...
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7083703 |
Filler and a process for the production thereof
A filler comprising cellulose or lignocellulose fibrils on which light-scattering material particles have been deposited, and a process for the manufacture thereof. In the filler according to the...
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7070677 |
Method and apparatus for treating pulp with filler
The present invention relates to a method of and apparatus for treating pulp with filler. The method and apparatus according to the invention are especially well suitable for treating pulp with...
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7018508 |
Process for producing dried singulated crosslinked cellulose pulp fibers
This invention provides a dried singulated crosslinked cellulose pulp fiber product as well as an apparatus and a method for forming singulated, crosslinked, and dried fibers. In accordance with...
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7008505 |
Eucalyptus biomechanical pulping process
In a new process for preparing pulped wood chips for paper making, chips from a hardwood such as eucalyptus are inoculated with aliving culture of one or more white rot fungi. The fungi propagate...
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7001483 |
Apparatus for making carboxylated pulp fibers
An apparatus for carboxylating wood pulp which utilizes the wood pulp bleach plant and the method of carboxylating the pulp which takes place in the bleach plant.
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6991705 |
Process for stabilizing the PH of a pulp suspension and for producing paper from the stabilized pulp
The invention relates to a process for stabilizing the pH of a pulp suspension with buffering agents and to a process for producing paper from a stabilized pulp suspension. The alkalinity of the...
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6986793 |
Method for making bleached crosslinked cellulosic fibers with high color and brightness
A method for making bleached crosslinked cellulosic fibers having high color and brightness properties is disclosed. In the method cellulosic fibers which have been with a crosslinking agent in the...
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6984290 |
Method for applying water insoluble chemical additives with to pulp fiber
Pulp fibers can be treated with water insoluble chemical additives resulting in a minimal amount of unretained water insoluble chemical additives present after redispersing the treated pulp fibers...
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6958108 |
Method of producing a fiber product having a strength suitable for printing paper and packaging material
The present invention relates to a modified fiber product and a method of producing same. According to the method, the cellulosic raw material is formed into a fiber suspension, into which...
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6949166 |
Single ply webs with increased softness having two outer layers and a middle layer
“Products made from a process for increasing the tactile properties of a base web without adversely affecting the strength of the web is disclosed. In general, the process includes the steps of...
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6939437 |
Paper making processes using enzyme and polymer combinations
Methods of making paper or paperboard are described. In one method, at least one cellulytic enzyme composition and at least one cationic polymer composition are introduced to a paper making pulp at...
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6939438 |
Apparatus for loading fibers in a fiber suspension with calcium carbonate
An apparatus for loading fibers in a fiber suspension with calcium carbonate has a housing with an inlet and an accept outlet. A rotatable distribution member is positioned within the housing. A...
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6936136 |
Amino-functionalized pulp fibers
The disclosed invention is directed to pulp fibers suitable for forming a wet-laid paper product which include amino-functionality which is non-extractable in an aqueous phase. The pulp fibers may...
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6916402 |
Process for bonding chemical additives on to substrates containing cellulosic materials and products thereof
Articles containing cellulose materials and treated with a chemical additive are disclosed. In accordance with the present invention, at least a portion of the cellulose containing the article is...
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6905028 |
Method of separation by altering molecular structures
Method of separation that uses at least one organic chemical reaction to alter the molecular structure of a substance or substances ( 102 ) so that a mechanical method of separation can be used to...
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6902649 |
Enhanced fiber additive; and use
The disclosure provides a process of modifying a seed based fiber (SBF) to form an enhanced fiber additive (EFA). The process includes an acid treatment step and optionally at least one fiber...
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6899790 |
Method of providing papermaking fibers with durable curl
A process for producing high bulk cellulosic fiber exhibiting a durable elevated curl index includes: (a) concurrently heat treating and convolving cellulosic fiber pulp at elevated temperature and...
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6893473 |
Whitened fluff pulp
Whitened fluff pulp and methods for making whitened fluff pulp. The whitened pulp is a fluff pulp that has been treated with one or more of a white pigment, a colorant, or a fluorescent whitening...
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6887347 |
Cellulose fibers comprising radiation activatable resin formalities
The present invention relates to cellulosic fibrous material comprising a radiation activatable resin, structures comprising such fibrous material, and absorbent articles especially disposable...
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6881298 |
Process for loading fibers with calcium carbonate in a plurality of reactors
For a process and an apparatus for loading fibers contained in a pulp suspension with calcium carbonate, a calcium oxide and/or a medium containing calcium hydroxide is fed to the pulp suspension,...
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6861023 |
Process for making lyocell fiber from sawdust pulp
A process for making lyocell fibers including the steps of pulping raw material in a digester to provide an alkaline pulp, wherein the raw material includes sawdust in an amount greater than 0% up...
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6849156 |
Cationic fibers
A cationic cellulosic fibre containing between 1 and 30 cationic groups and between 0.1 and 20 aldehyde groups per 100 anhydroglucose units is a suitable basis for producing paper and tissue...
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6837970 |
Wood pulp fiber morphology modifications through thermal drying
A method of modifying a two-dimensional, flat fiber morphology of a never-been-dried wood pulp into a three-dimensional twisted fiber morphology without the aid of a chemical cross-linker. The...
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6824645 |
Oxidized cellulose-containing fibrous materials and products made therefrom
The present invention relates to a cellulose-containing fibrous material, wherein hydroxy groups were oxidized at the C(6) of glucose units of the cellulose into aldehyde and/or carboxy groups, a...
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6821383 |
Preparation of modified fluff pulp, fluff pulp products and use thereof
This invention relates to a method of producing modified fluff pulp comprising treating cellulose pulp with a nitroxide-mediated oxidation method and fluffing the treated cellulose pulp. The...
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6808595 |
Soft paper products with low lint and slough
A paper product containing hardwood fibers that are treated with certain hydrolytic enzymes, such as endo-glucanases, is provided. Moreover, the paper product includes other types of fibers, such...
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6808790 |
Wet-resilient webs and disposable articles made therewith
Paper sheets useful for tissues, paper towels, napkins, disposable absorbent products and the like can be made to exhibit a high degree of wet resiliency. This property is achieved by using a...
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6782637 |
System for making dried singulated crosslinked cellulose pulp fibers
This invention provides a dried singulated crosslinked cellulose pulp fiber product as well as an apparatus and a method for forming singulated, crosslinked, and dried fibers. In accordance with...
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