| Patents for D21H 23 - Processes or apparatus for adding material to the pulp or to the paper (8,452) |
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| 03/02/2005 | CN1587513A Method for producing double-sided diazophotosensitive paper |
| 02/24/2005 | WO2004096895A3 Method for the production of aqueous polyelectrolyte complex dispersions, and use thereof for increasing the water resistance of paper, paperboard, and cardboard |
| 02/24/2005 | US20050042443 PVOH barrier performance on substrates |
| 02/24/2005 | US20050042239 Micro-mixied water and water insoluble biocide such as 2-octyl-3-isothiazolone or 4,5-dichloro-2-octyl-3-isothiazolone; corrosion inhibitior, agrichemical, antiscale agents, dispersants, and/or acrylic polymers; surfactant-free |
| 02/24/2005 | US20050039871 Forming a multilayer free flowing curtain, contacting the curtain and coating on a continuous moving web paper substrate; high shear viscosity |
| 02/24/2005 | DE10297673T5 Druckpapier und Verfahren zur Erzeugung eines Druckpapiers Print paper and methods for production of a printing paper |
| 02/23/2005 | EP1508276A1 Process for preparing biocide formulations in the form of emulsion |
| 02/23/2005 | CN1585917A Method and apparatus for controlling the operation of stock preparation of a paper machine |
| 02/23/2005 | CN1585846A Method for releasing laminated materials |
| 02/23/2005 | CN1190545C Surface coatings |
| 02/21/2005 | CA2477365A1 Process for preparing biocide formulations |
| 02/17/2005 | WO2005014934A2 Method for charging a fiber suspension, and arrangement for carrying out said method |
| 02/17/2005 | DE202004002677U1 Dekorpapier mit aufgestreutem Korund Decorative paper with aufgestreutem corundum |
| 02/16/2005 | CN1582357A High gloss calcium carbonate coating compostions and coated paper board manufactured from same |
| 02/16/2005 | CN1189624C Improved anti-water absorbency print paper, neaspaper and its producing method |
| 02/15/2005 | CA2329027C A process for the production of paper |
| 02/10/2005 | WO2005012639A1 Anionic-cationic polymer blend for surface size |
| 02/10/2005 | WO2005011976A1 Method for increasing moisture content in extrusion coated paperboard |
| 02/10/2005 | US20050031882 Biodegradable coated substrates |
| 02/10/2005 | DE10333950A1 Process and assembly to apply a dust pigment coating to one or both sides of a pre-wetted paper or carton web |
| 02/09/2005 | EP1504157A1 A method for coating of paper or paperboard using a spray coating technique |
| 02/09/2005 | EP1425472A4 Method of improving retention and drainage in a papermaking process using a diallyl -n, n-disubstituted ammonium halide/acrylamide copolymer and a structurally modified cationic polymer |
| 02/09/2005 | CN1576460A Retention and water filtering system for producing paper, paper board and card paper board |
| 02/09/2005 | CN1188225C Coated sheets method for producing laminated material, coating equipment and kraft paper |
| 02/09/2005 | CN1188224C Coated sheets apparatus and method for producing laminated materials and kraft paper |
| 02/08/2005 | US6852196 Foam treatment of tissue products |
| 02/03/2005 | US20050025939 Die lip for strip coating |
| 02/03/2005 | US20050022956 Sizing and strengthening of paper and other cellulosic products with an aqueous sizing mixture of a film-forming binder (especially starch), an anionic polymer and a cationic polymer; the starch may be grafted to one of the polymers |
| 02/03/2005 | US20050022415 System for making dried singulated crosslinked cellulose pulp fibers |
| 02/03/2005 | DE10331325A1 Auftragsvorrichtung mit verstellbarer Auftragsbreite Application device with adjustable application width |
| 02/03/2005 | DE10330801A1 High-pressure spray-coating apparatus control method for paper-making machine, involves changing mass flow-rate of web processing agent from high-pressure nozzles, based on amount of processing agent adhering to web |
| 02/03/2005 | DE10329675A1 Pressing and coating treatment for fibrous web in papermaking plant producing e.g. newsprint, coats chemical agent on wet side of dewatering nip |
| 02/02/2005 | EP1502888A2 Method and apparatus for automatic adhesive transfer |
| 01/27/2005 | WO2004053227A8 Filler-fiber composite |
| 01/27/2005 | US20050016704 Method and apparatus for controlling the operation of stock preparation of a paper machine |
| 01/27/2005 | DE10331145A1 Vorrichtung zum direkten oder indirekten Auftragen von flüssigen bis pastösen Suspensionen auf Papier- oder Kartonbahnen An apparatus for direct or indirect application of liquid to pasty suspensions on paper or cardboard webs |
| 01/26/2005 | EP1500744A2 Paper-making additive and method for producing paper |
| 01/26/2005 | CN1186497C Red brown paper dipped with metlbond |
| 01/26/2005 | CN1186118C Method for making solid material to hydrophobic, material obtained and uses ` |
| 01/25/2005 | US6846384 Process for sizing paper |
| 01/25/2005 | CA2254257C Tissue paper treated with nonionic softeners that are biodegradable |
| 01/20/2005 | WO2005005728A1 Application device with an adjustable application width |
| 01/20/2005 | US20050011624 Method, paper machine and base paper for the manufacture of lwc printing paper coated once |
| 01/19/2005 | EP1497042A1 Die lip for strip coating |
| 01/19/2005 | EP1086274B9 A process for making paper |
| 01/19/2005 | CN1566524A Xylanase adding method and apparatus |
| 01/18/2005 | CA2237337C A process for the production of paper |
| 01/13/2005 | WO2005003459A1 Method of producing coated inkjet printable paper directly on a papermaking machine |
| 01/13/2005 | US20050008785 Applying ceramic slip to paper web surface; applying by gravity; oscillation |
| 01/12/2005 | EP1496155A2 Device for applying directly or indirectly a liquid or pasty suspension onto paper or board webs |
| 01/12/2005 | EP1250595A4 Measurement apparatus and technique for properties of board products |
| 01/12/2005 | CN1563572A Paper making technical method of using filter aid at press part of paper machine |
| 01/11/2005 | US6841264 Doctor or coater blade and method in connection with its manufacturing |
| 01/06/2005 | US20050003223 Recording sheet and image recording method using the same |
| 01/06/2005 | US20050003083 Method for producing sized paper or cardboard |
| 01/05/2005 | EP1493867A2 Device, method and arrangement for pressing two parallel-axis, mutually drawable rollers in a device for producing and/or treating a web of material |
| 01/05/2005 | EP1492926A1 Improved molded fiber manufacturing |
| 01/05/2005 | EP1492924A2 White pitch deposit treatment |
| 01/05/2005 | DE10316851A1 Verfahren zum Behandeln einer Kartonbahn A method for treating a board web |
| 01/04/2005 | CA2217681C Method in film transfer coating and equipment intended for carrying out the method |
| 12/30/2004 | US20040265496 Method and apparatus for curtain coating |
| 12/30/2004 | DE10326738A1 Process to strengthen paper, paperboard or cardboard by sprayed application of starch particles. |
| 12/29/2004 | WO2004113616A1 Methods for treating fibrous structures |
| 12/29/2004 | WO2004113615A1 Curtain coater unit of a paper/board machine |
| 12/29/2004 | WO2004113614A1 Controlled addition of co2 in the wet end of the papermaking process |
| 12/29/2004 | WO2004005617A8 Triazinylaminostilbene disulphonic acid mixtures |
| 12/29/2004 | EP1490551A2 Improvements to processes for manufacturing paper products by improving the physico-chemical behaviour of the paper stock |
| 12/29/2004 | CA2718632A1 Methods for treating fibrous structures |
| 12/29/2004 | CA2528464A1 Controlled addition of co2 in the wet end of the papermaking process |
| 12/28/2004 | US6835418 Use of gaseous streams to aid in application of foam to tissue products |
| 12/28/2004 | US6835282 Providing pulp slurry containing low-grade pulp selected from gound wood pulp, recycled pulp, and mixtures; adding a pre-flocculated filler to slurry; forming a paper web from winding web on a reel |
| 12/23/2004 | US20040256069 Combining a papermaking composition and CO2 in a wet end process; measuring or estimating an electrical property; and controlling the rate of addition of CO2 to maintain the electrical property within a preselected range of values. |
| 12/23/2004 | US20040256066 Fibrous materials treated with a polyvinylamine polymer |
| 12/23/2004 | US20040255396 Soft facial tissue or toilet tissue; elimination of kgnarr (contaminant formed when a softener additive unites with dust in the surroundings of traveling web) at high speed papermaking |
| 12/23/2004 | DE10325688A1 Process to precipitate bulk calcium carbonate in a fibrous suspension by admixture of liquid or solid calcium hydroxide, or calcium oxide |
| 12/22/2004 | EP1488938A1 Method of producing decorative sheets |
| 12/22/2004 | EP1488040A1 Paper and materials and processes for its production |
| 12/22/2004 | EP1190139B1 Process for applying chemical papermaking additives to web substrate |
| 12/22/2004 | CN1181246C Cationic starch/cationic galactomannan gum blends as strength and drainage aids |
| 12/21/2004 | CA2091119C Method and apparatus for applying a material to a web |
| 12/16/2004 | WO2004109015A2 Method and apparatus in the surface sizing of a paper or board web |
| 12/16/2004 | WO2004109013A1 Paper product and method therefor |
| 12/16/2004 | US20040250972 Process for the production of paper |
| 12/16/2004 | US20040250971 adding, at the wet end of the paper-making machine, a secondary retention and drainage agent containing a liquid smectite, and a primary retention and drainage agent comprising a natural or synthetic polymer; retention and drainage agents can be added in any order, so as not to effect the whiteness |
| 12/15/2004 | EP1485210A1 A method for forming a film, by using electrostatic forces |
| 12/15/2004 | CN1555445A Core raw paper for corrugated boards, and method of producing the same |
| 12/14/2004 | US6830784 Treatment of natural polymer based materials and the products based thereon |
| 12/14/2004 | CA2226773C Process for coating of paper and board |
| 12/14/2004 | CA2118529C Method for applying debonding materials to a tissue |
| 12/09/2004 | US20040247838 Laminated paper substrate comprising a data recording heat sensitive layer, and a pigmented intermediate layer having regions of different thickness and greater thickness at security watermarks; inkjet printing, thermography |
| 12/09/2004 | US20040244931 Paper product and method therefor |
| 12/09/2004 | US20040244929 Fixing cationic dyes; mixing with pulp fibers; pressing, sizing, drying |
| 12/09/2004 | US20040244928 Papers for liquid electrophotographic printing and method for making same |
| 12/09/2004 | US20040244927 Paper, or cardboard; preapplying filler between layers before joining |
| 12/08/2004 | EP1483806A2 A grounding electrode and a method in which it is utilized |
| 12/08/2004 | EP1483449A2 Method for coating both surfaces of a continuous web |
| 12/08/2004 | EP1483448A2 Transferring of powdery particles onto a web |
| 12/08/2004 | EP1483447A2 Method for treating powdery particles |
| 12/08/2004 | EP1483446A1 A method for coating a surface of a continuous web with a coating powder |
| 12/08/2004 | EP1121488B1 Soft tissue paper |