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WO/2000/078468A1 |
The invention relates to a roller provided for use in coating machines. The inventive roller is provided for directly or indirectly applying a liquid or pasty medium to one or both sides of a running web of material, especially made of p...
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WO/2000/077303A1 |
A soft tissue product and method for making a soft tissue product which exhibits resistance to linting while maintaining physical strength integrity. The process includes debonding and mechanically treating papermaking fibers, forming a ...
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WO/2000/073576A1 |
The present invention relates to the bleaching of lignin present in pulp fibers in an aqueous environment such as a pulp suspension. The invention also relates to a process for producing paper or board from pulp containing such bleached ...
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WO2000034580A9 |
A release liner (32) for use with face stocks for pressure sensitive labels, tapes, decals and other products formed from sheet and roll stock. A filled polymer (12) is laminated to one side of a paper web (14). An extrudate (24) is lami...
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WO/2000/068503A1 |
A process for applying a chemical additive, such as a softener, to a fibrous web comprises the steps of: providing a fibrous web having a first side and a second side opposite to the first side; providing a chemical additive; depositing ...
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WO/2000/066835A1 |
Chemical additives can be adsorbed on cellulosic papermaking fibers at high levels with a minimal amount of unadsorbed chemical additives present in the papermaking process water. A method includes treating a fiber slurry (20) with an ex...
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WO/2000/066834A1 |
A paper coating composition has therein an optical brightening agent (OBA) and a water-soluble non-ionic polysaccharide derivative, exhibiting a solution viscosity in water of less than 1500 cps when dissolved at 5% polymer concentration...
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WO/2000/063493A1 |
The present invention relates to sizing of paper and more specifically to a substantially water-free and aqueous composition of a sizing agent where the composition contains a cellulose reactive sizing agent, a cationic compound with a m...
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WO/2000/063494A1 |
The invention relates to a coating device for a paper or board machine comprising a coating rod (2), by means of which a coating is applied onto a base to be coated, such as paper or board or a roll of a film size press and which coating...
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WO/2000/056978A1 |
A method for increasing filler retention of cellulosic fiber sheets is disclosed. In the method, cellulosic fibers with increased anionic sites are treated with either positively charged filler particles and/or amphoteric filler particle...
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WO/2000/055423A1 |
A method for treating a web of paper or board with a wetting substance or calendering the web prior to the cylinder dryer section of a paper- or boardmaking machine while the solids content of the web is still very low, typically in the ...
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WO/2000/055425A1 |
An arrangement for applying a treating mix onto the surface of a moving device in the coating of paper or board. The arrangement comprises a blade carrier (3), doctor means (4) attached to the blade carrier (3), a front wall (9) arranged...
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WO/2000/055424A1 |
A method and arrangement for manufacturing paper, in which method base paper manufactured in a paper machine is calendered and coated to improve its printing properties. Before calendering, the moisture content of the manufactured base p...
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WO/2000/053414A1 |
The object of the invention is a method for the manufacturing of packaging material. The packaging material comprises cellulose based raw material treated to be grease and/or water resistant (2) for packaging material and a plastic coati...
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WO/2000/052265A1 |
The invention relates to a method by means of which the machine-direction moisture of a web being coated can be controlled in an optimal manner that takes into account moisture content changes along the entire path of the coating and dry...
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WO/2000/052266A1 |
The invention relates to a method by means of which the machine-direction moisture of a web being calendered or coated and calendered can be controlled in an optimal manner that takes into account moisture content changes along the entir...
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WO/2000/049227A1 |
A method for increasing retention and drainage of filling components in a paper making furnish in a paper making process comprising the steps of: making a slurry of filling components, treating the slurry with from about 0.003% to about ...
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WO/2000/047817A1 |
The invention relates to a stabilized calcium carbonate filler, a process for stabilizing calcium carbonate, its use in a paper making system and to an improved paper making process wherein stabilized calcium carbonate is used as a fille...
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WO/2000/044980A1 |
The invention relates to a machine for producing a multilayer web of fibrous material, especially a paper web or cardboard web. Layers (A, B) are moulded by a former (10, 12). Said layers (A, B) are couched with one another. At least two...
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WO/2000/044983A1 |
A method of sizing paper by applying a composition comprising an aqueous dispersion of polymeric particles of particle size up to 1 micron, preferably 80-200 nm, wherein the polymeric particles comprise a water insoluble polymer matrix, ...
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WO/2000/044981A1 |
A doctor apparatus (56) comprises a base (58) adapted to be fixed to a doctor back (10) and having a shelf (60) projecting forwardly therefrom. A compliant top plate (62) overlies the forwardly projecting shelf. The top plate has a rear ...
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WO/2000/042254A1 |
The present invention relates to a method and apparatus for coating a moving paper web (2), in which method the web (2) to be coated is passed to a coater station and the coating is applied to at least one surface of the moving web (2) b...
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WO/2000/040799A1 |
Method and assembly for supporting a web (1) during the postprocessing of a web of paper or board, in which method the web is passed from a preceding device to at least one next downstream located web treatment device (4) wherein to at l...
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WO/2000/037739A1 |
The present invention relates to an assembly and a method for preventing the spray emitted by a spraying nozzle (1) from reaching the surface of a paper web, said nozzle (1) being disposed at a distance from the surface of the paper web ...
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WO/2000/034582A1 |
An emulsion copolymer is used as a retention/drainage/formation aid in the papermaking process to improve dewatering, press solids and brightness. It is also used to treat coated broke where the white pitch or stickies and pigments are f...
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WO/2000/034581A1 |
In the papermaking process, a polyampholyte coagulant is used as a retention/drainage/formation aid in a papermaking process; is used to treat coated broke where the white pitch or stickies and pigments are affixed to the long fibers and...
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WO/2000/032873A1 |
The invention concerns a novel method for making paper based on cellulose fibre in sheet form, wherein a novel retention system comprising a suspension of precipitated silica and a cationic polymer is used for improving in particular the...
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WO/2000/031339A1 |
A composition comprising cationic starch, cationic galactomannan gum (such as cationic guar, locust bean and fenugreek gum) and acid suitable as drainage aid and strength additive in papermaking.
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WO/2000/029670A1 |
The strength of lignocellulosic materials, such as paper and cardboard, is improved by treating them with water-soluble strengthening agents containing sulfonic units, preferably lignosulfonates, and rendering these agents water-insolubl...
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WO/2000/028137A2 |
A device for impregnating a moving web, such as a pulp web, comprises a tub containing impregnating fluid, one or more transporting drums installed in series along the path of motion of the impregnated web in the tub, two continuous web-...
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WO/2000/023269A1 |
A coated substrate having an MVTR greater than about 5 perms comprises a substrate, a monolithic, extrusion coated breathable polymer layer, and a primer layer intermediate and adhered to the substrate and the monolithic, extrusion coate...
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WO/2000/022233A1 |
Disclosed is a composition for softening a wet laid cellulosic structure. A particularly preferred structure is an absorbent tissue. Further disclosed are tissue structures softened using the composition. The composition includes an effe...
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WO/2000/022231A1 |
Disclosed is a composition for softening an absorbent tissue and tissue structures softened using the composition. The composition includes an effective amount of a softening active ingredient; a vehicle in which the softening active ing...
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WO/2000/022232A1 |
A method for preparing a colored paper which comprises: flocculating a dispersion of pigment in the absence of fiber to obtain a slurry of the flocculated pigment, combining the slurry of flocculated pigment with paper fibers, and formin...
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WO/2000/020682A1 |
Method of producing an impulse dried wetlaid fibrous web-shaped material, such as paper or nonwoven, having a three-dimensional pattern of alternating raised and recessed portions, which have been provided in connection with impulse dryi...
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WO/2000/018514A1 |
The invention relates to a method for directly or indirectly applying a liquid or paste-like coating medium to a continuous surface. Said coating medium is applied in a number of individual application areas on the surface by means of a ...
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WO/2000/017451A1 |
A microparticle system for use as a retention and drainage aid in the production of alkaline and acid paper products comprises a HMW flocculant polymer (6), an acid colloid (7), and a coagulant or a MMW flocculant (5). The acid colloid (...
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WO/2000/017450A1 |
A microparticle system for use as a retention and drainage aid in the production of alkaline and acid paper products comprises a high molecular weight flocculant polymer (6) and a silica-acid colloid blend (7), and optionally a cationic ...
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WO/2000/014332A1 |
Known doctor rods (1) used as dosing elements in coating devices have a cylindrical steel base body on whose cover surface a chromium or ceramic layer of hard material is applied. According to the invention, the cracks and craters in the...
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WO/2000/012819A1 |
A process for making paper on a paper-making machine comprising providing a cellulosic thin stock-suspension, flocculating the suspension by adding an aqueous solution of a polymeric retension aid selected from natural and synthetic poly...
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WO/2000/011260A2 |
The present invention relates to a method for producing cellulose from a ligno-cellulosic material, wherein said method involves submitting this material to a high-temperature process in a sulfate alkali medium while acting on the alkali...
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WO/2000/011267A1 |
A method of improving drainage rate and retention of fines which is effective in unfilled, newsprint-type furnish without a silica/bentonite-type particle is disclosed. The method comprises adding a cationic or amphoteric starch, and a c...
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WO/2000/006490A1 |
Anionic nanocomposites for use as retention and drainage aids in papermaking are prepared by adding an anionic polyelectrolyte to a sodium silicate solution and then combining the sodium silicate and polyelectrolyte solution with silicic...
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WO/2000/003091A1 |
The object of the present invention is an additive composition for paper making which is added to the pulp prior to web formation in order to increase the wet strength of the web. The basic component of the composition is a component mad...
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WO/2000/003090A1 |
The object of the invention is an additive for paper making by means of which the dusting tendency of paper can be reduced. The agent is based on starch, the molecular size of which has been reduced, and which has been cationized to a ch...
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WO/2000/003094A1 |
A retention and drainage aid comprising a microparticle system for use in the production of an alkaline and an acid paper product comprises a flocculant polymer and an inorganic particulate material comprising an aluminum substituted tri...
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WO/2000/003093A1 |
A hydrophobic filler material for neutral, alkaline and acidic papers is disclosed. The filler material comprises finely divided particles of an inorganic material, in admixture with a water miscible, butyl acrylate-acrylonitrile copolym...
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WO/2000/003092A1 |
Method and assembly for forming a paper or board web and a product made using the method. According to the method, the web (11) is made from fibers and then the web (11) is treated with pigment particles. The web is treated with microsco...
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WO/2000/001783A2 |
The invention relates to aqueous adhesive dispersions containing A) 0.1-10 wt.% adhesive polymer in the form of a dispersion with respect to the overall weight of the dispersion, B) 0.1-100 parts by weight of constituent A), an anionic o...
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WO/2000/001887A1 |
The invention relates to a method and device for improving the coating surface of the coating slip deposited on a strip of body paper (8, 23). An anionic aqueous coating slip and anionic paper are thus provided with an opposite electric ...
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