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WO/1995/021296A1 |
According to the invention, a process of making paper comprises forming a cellulosic suspension, adding retention aid to the suspension, draining the suspension through a screen to form a sheet, and drying the sheet and in this process w...
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WO/1995/021298A1 |
The invention is a repulpable wet strength paperboard formed from an aqueous dispersion of cellulosic fibers treated with a temporary cellulose reactive wet strength agent and a permanent wet strength agent. Said temporary wet strength a...
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WO/1995/019468A1 |
A wood-containing bible paper weighing less than 49 g/m2 is provided with a surface pigmentation that contains as pigment a mixture of a swellable stratified silicate (Na-bentonite) and other usual coating pigments, and as binder only a ...
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WO/1995/017550A1 |
A backing bar assembly (20) has a plurality of positively positionable backing bar units (40) which are retained within an inverted U-shaped housing by semi-cylindrical lifters (68) which are adjusted by adjustment screws (60) connected ...
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WO/1995/017264A1 |
A device for the coating of a travelling web (7), preferably a paper web, comprising a back-up element (3), a metering means (9) cooperating therewith and intended for the application onto the web (7) across essentially the full width th...
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WO/1995/016823A1 |
Tissue papers, in particular pattern densified tissue papers, having an enhanced tactile sense of softness when treated with certain polyhydroxy fatty acid amide softener systems that are biodegradable are disclosed. The polyhydroxy fatt...
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WO/1995/016073A1 |
An assembly having at least three coaters or separate doctor or blade units, all arranged at a single backing roll coating station is provided. At least two of the coater or blade units can be movably positioned for easy operation and se...
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WO/1995/014737A1 |
A chemical composition for use in the papermaking process to produce a paper having enhanced characteristics of brightness, opaqueness, and sizing is provided. The process using the composition to make the paper and the paper made theref...
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WO/1995/014816A1 |
The method comprises threading the tail of a paper web (1) to be coated through a coating line during startup or web break, in which method an edge strip is slit from the web to act as the tail of the web which is first threaded through ...
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WO/1995/013426A1 |
The present invention is related to a method of manufacturing a paper product containing anionic laminating, coating or sizing agents, said paper product being free from carry-over speck defects in recycle use. The method is characterize...
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WO/1995/012027A1 |
A method of making paper in which dry chemical additives are incorporated into the pulp mixture by addition of an entire bag (20) containing the additive directly to the mixture, the improvement being that the bag is sealed with an adhes...
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WO/1995/012031A1 |
A fountain applicator for applying coating liquid onto a web of paper carried past the applicator, has a coating liquid flow path that includes a curved surface along which a sheet of the coating liquid is flowed to subject the sheet to ...
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WO/1995/010366A1 |
A coating applicator for coating a web or flexible substrate contains a walled application chamber where the coating liquid first comes into contact with the substrate (53). The coating liquid enters a channel of the application chamber ...
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WO/1995/009276A1 |
The invention relates to improvements in security features in paper and in particular to a method of making paper and transparentising selected areas of paper to provide enhanced security features. The invention thus provides a method of...
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WO/1995/009275A1 |
The invention relates to improvements in security features in paper and in particular to a method of making paper and transparentising selected areas of paper to provide enhanced security features. The invention thus provides a method of...
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WO/1995/008670A1 |
First pass filler retention is obtained by adding a cationic fixative into a filler containing pulp slurry which is also treated using the conventional polyethylene oxide/promoter retention system and, as a result, a significant increase...
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WO/1995/008026A1 |
The invention relates to a process and device for coating a travelling material web, especially paper or cardboard, with at least one liquid medium, in which the coating medium is conveyed to an application device with a spray nozzle fit...
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WO/1995/007386A1 |
A papermaking process in which an aqueous suspension of comminuted cellulose material is treated mechanically and then subjected to a sheet-forming operation is characterized in that the suspension contains a tertiary amine oxide. The co...
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WO/1995/006164A1 |
A short dwell coater apparatus (10) is disclosed for applying coating material to a web (W) supported by a backing member (12). The apparatus (10) includes a housing (14) which defines an application zone (16) having an upstream and a do...
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WO/1995/006163A1 |
A method and article of manufacture thereof is provided for reducing brightness reversion in bleached lignin-containing pulps or newsprint by the treatment of the bleached lignin-containing pulp or newsprint with 2,5-dihydroxydioxane. In...
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WO/1995/004858A1 |
The amount of coating applied by an applicator is locally adjusted by locally disturbing the flow to the metering outlet, for example, by locally bleeding selected amounts of coating from the metering chamber of the coater to thereby con...
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WO/1995/004856A1 |
The present invention provides a process for making a paper based product which comprises a paper sheet, an aqueous latex binder and a release agent comprised of an emulsion of lecithin and a fatty acid or derivative thereof. In one embo...
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WO/1995/004857A1 |
Provided is a process for making a paper based product which comprises first preparing a slurry of a cellulosic pulp, a particulate binder, and an emulsion comprised of lecithin and a fatty acid or derivative thereof. This slurry is then...
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WO/1995/002088A1 |
Paper is made by adding nonionic or anionic polymeric retention aid to a suspension that contains a high electrolyte content, shearing the flocculated suspension, aggregating the sheared suspension by adding anionic particulate material ...
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WO/1995/000705A1 |
The invention is a method of making a wet formed, sheeted, readily reslurriable sheeted crosslinked cellulose and the products made by the method. Crosslinked wood pulp fibers tend to be quite brittle. If crosslinked while in sheeted for...
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WO/1995/000256A1 |
Coating device for one- or two-sided coating of a travelling web (5), comprising at least one counter-means and at least one first metering means (7) placed on the opposite side of the web (5) for applying onto said web, in cooperation w...
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WO/1994/029524A1 |
Method for applying an adhesive diluted in a solvent such as water, on a substrate such as a paper web (13), for example made of cellulose wadding, which is driven on a rotating cylinder (9), by means of an applicator device (20) compris...
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WO/1994/029525A1 |
A material, which may have a highly open structure such that it has negligible barrier properties, is treated with expandable particles. These are then caused to expand within the material, reducing its openness and improving its barrier...
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WO/1994/029523A1 |
Process for the manufacture of paper which provides a non-polluting method based on ionic lattices for giving wet strength. The process is characterized by successively adding to the fibrous composition a cationic polyelectrolyte, then a...
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WO/1994/025672A1 |
Paraffin wax emulsion is combined with alkali metal silicate solution to form a stable liquid mixture conferring increased strength and water repellency when applied to cellulosic fiber mat products such as paper and paperboard. This pro...
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WO/1994/025268A1 |
It has now been found that highly advantageous three-dimensional, macroscopic assemblages of randomly oriented carbon fibrils can be prepared which have relatively uniform physical properties along one, preferably two and most desirably ...
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WO/1994/023126A1 |
Prior art devices for coating continuous strips of paper or cardboard (1) exist which have a counter-roller round which the paper or cardboard (1) passes, an application system (3) which applies an excess of coating material to the paper...
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WO/1994/023127A1 |
A coating method and apparatus for paper, cardboard or a corresponding material. In the method, the paper web (10) is coated with a coating composition layer or layers, the paper web (10) is doctored at least after the last coating, and ...
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WO/1994/018384A1 |
The invention describes a method for dispersion of cellulose based fibers in water. The raw material, which particularly may be recycled paper, is first wetted with water. By a combination of addition of hydrocolloid which binds water, a...
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WO/1994/017244A1 |
A process for coating a low-resistance paper web (based on used paper) has the following characteristics: the paper is coated on both sides; the paper web is dried after coating. The invention is characterized by the following traits: th...
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WO/1994/015766A1 |
Manufacturing process of panels or finished products, particularly for thermic, sound and similar insulation, by using raw materials like the paper, the Bristol board, the cardboard and similar materials, which are in succession or at de...
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WO/1994/011116A1 |
An application method and apparatus making able to apply a paper web or like in whatever stage of the process from the first dewatering step until the final drying step. The process comprises forming a fog from the coating slurry and dir...
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WO/1994/009210A1 |
A compostable paperboard container and package for liquids which is coated with a material capable of degrading to carbon dioxide, water and biomass under composting conditions.
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WO/1994/005857A1 |
Disclosed is a process for making soft tissue paper which includes providing a dry tissue web and then applying a sufficient amount of a chemical papermaking additive from a thin film to the dry web. The chemical papermaking additives ar...
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WO/1994/005856A1 |
Tissue papers, in particular pattern densified tissue papers, having an enhanced tactile sense of softness when treated with certain nonionic softeners are disclosed. These nonionic softeners are biodegradable and comprise sorbitan ester...
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WO/1994/002258A1 |
A process is disclosed for manufacturing paper web containing a CF layer for pressure sensitive recording paper. In order to ensure full sizing, the paper web (1) is subjected to intermass sizing and the coating ink (4) containing colour...
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WO/1994/002256A1 |
A coating device has a coating roller (1) which forms a coating gap (10) with the counter-roller (4) for guiding the web of material (C). A preferably flexible guiding wall (2) having approximately the same shape as the casing of the cou...
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WO/1994/002681A1 |
Internally sized paper is made by incorporating cationic retention aid into a cellulosic suspension to form flocs, breaking these down to microflocs, aggregating them by bentonite or other anionic polymeric material, draining the suspens...
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WO/1994/001619A1 |
Aqueous compositions of sizing agents which are hydrophobing cyclic dicarboxylic acid anhydrides or alkyl ketene dimers. The compositions comprise an amphoteric polymer which is amphoteric starch or an amphoteric acrylamide based polymer...
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WO/1994/001622A1 |
The invention relates to a paper colouring apparatus for especially water colours or water-based inks, wherein a driven running paper web (1) is positioned around a turning roller (2) constituting the counter pressure roller for an inker...
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WO/1994/000637A1 |
A doctor bar, in particular for dosing coating slips on continuous webs of paper or cardboard or rubber coatings on cylinders, is characterized in that at least the superficial area which forms the doctoring or dosing surface is made of ...
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WO/1993/025754A1 |
Improved fines retention in a paper making process may be employed by using as the binder a combination of natural hectorite and a medium/high molecular weight cationic polymer having an intrinsic viscosity in the range 5 to 25 dl/g and ...
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WO/1993/024705A1 |
A method of treating a porous material comprising establishing a pressure differential across the material and treating the higher pressure side with a suspension dispersion or aerosol of droplets of a liquid. The droplets enter at least...
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WO/1993/023621A1 |
A process plant has at least one process circuit (1) and/or process line having each at least one liquid ring machine (2) or hydraulic pump in line or circuit operating configurations. The process side (1) and the pump side (3) are linke...
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WO/1993/023622A1 |
The invention relates to a device for applying coatings to travelling webs, especially of paper or cardboard, with a belt or hose (7) led around the curved guide surface of a beam or rodlike supporting member (1) and a drive roller (6), ...
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