| Patents for D21F 11 - Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines (5,843) |
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| 07/29/1992 | CN1063132A Production method of bleached woodpulp base paper used for insulating impregnation |
| 07/22/1992 | EP0495637A1 High softness tissue |
| 07/22/1992 | CN1017567B Secret paper for making paper currency and securities |
| 07/10/1992 | CA2052743A1 Non-nesting multi-ply tissue and method for making same |
| 07/08/1992 | CN1062568A Papermaking belt and method of making same using textured casting surface |
| 07/08/1992 | CN1062567A Papermaking belt and method of making same using deformable casting surface |
| 07/08/1992 | CN1062566A Papermaking belt and method of making same using differential light transmission techniques |
| 07/08/1992 | CN1062564A Technology for producing semi-chemical pulp of tobacco stalk with sulfite |
| 07/01/1992 | EP0367770B1 Process for manufacturing heat-insulating and soundproofing boards and soundproofing materials |
| 06/30/1992 | US5126187 Photographic base paper |
| 06/30/1992 | US5126015 Conveying paper between heated rolls having raised and recessed patterns on surfaces |
| 06/17/1992 | EP0490655A1 Method for drying moist fibrous webs |
| 05/20/1992 | CN1061254A Multi-wire paper machine formed by facing wires |
| 05/19/1992 | US5114777 Woven multilayer papermaking fabric having increased stability and permeability and method |
| 05/19/1992 | US5114539 Water removal by replacement with liquid hydrocarbon; pressing |
| 05/13/1992 | EP0485360A2 Fibrous tape base material |
| 05/12/1992 | CA1300412C Method and apparatus for high density paper |
| 05/06/1992 | EP0484101A2 Paper towels having bulky layer |
| 05/05/1992 | US5109764 Double screen belt press with a wedge compression zone for dewatering mixtures of fibrous material suspensions |
| 04/29/1992 | EP0482057A1 A method of forming a patterned non-woven |
| 04/22/1992 | EP0481746A1 Recovery of surfactant from papermaking process |
| 04/22/1992 | EP0481745A1 Foam forming method and apparatus |
| 04/16/1992 | WO1992006242A1 Device for manufacturing multilayer paper or cardboard |
| 04/09/1992 | DE4031038A1 Vorrichtung zum herstellen eines mehrlagigen papiers oder kartons An apparatus for producing a multi-ply paper or cardboard |
| 04/08/1992 | EP0479141A1 Method of preparing fibre material and the use of this method |
| 04/07/1992 | US5102501 Multiple layer fibrous web products of enhanced bulk and method of manufacturing same |
| 04/01/1992 | CN2100413U Corrugated paper board with network structure and product thereof |
| 03/25/1992 | CN2099771U Production of leather suitcase carton by using bamboo and grass pulps |
| 03/24/1992 | US5098522 Papermaking belt and method of making the same using a textured casting surface |
| 03/24/1992 | US5098519 Method for producing a high bulk paper web and product obtained thereby |
| 03/21/1992 | WO1992005310A1 Method and apparatus for manufacturing multi-ply web |
| 03/21/1992 | CA2069095A1 Method and apparatus for manufacturing multi-ply web |
| 03/17/1992 | CA1297278C Hydroentangled disintegratable fabric |
| 02/11/1992 | US5087324 Enhanced absorption rate and water holding capacity |
| 01/23/1992 | WO1992001114A1 Method and apparatus for manufacturing multilayer filter material |
| 01/23/1992 | WO1992001113A1 Method and apparatus for manufacturing multilayer filter material |
| 01/23/1992 | WO1992001112A1 Method and apparatus for manufacturing multilayer filter material |
| 01/15/1992 | EP0465698A1 Multi-ply web former and method |
| 01/11/1992 | WO1992001111A1 Multy-ply web former and method |
| 12/30/1991 | WO1992000416A1 Papermaking belt and method of making the same using a deformable casting surface |
| 12/30/1991 | WO1992000415A1 Papermaking belt and method of making the same using differential light transmission techniques |
| 12/30/1991 | WO1992000414A1 Papermaking belt and method of making the same using a textured casting surface |
| 11/20/1991 | CN2089019U Board machine reequipped from fourdurnier paper machine |
| 11/19/1991 | US5066532 Woven multilayer papermaking fabric having increased stability and permeability and method |
| 11/12/1991 | US5064502 Multi-ply web former |
| 10/29/1991 | US5061344 Method of making soft paper |
| 10/25/1991 | WO1991016493A1 Paper machine for the manufacture of high bulk soft crepe paper |
| 10/08/1991 | CA1290126C Apparatus and process for forming a laid fibrous web |
| 10/01/1991 | US5053109 Single layer seamed papermakers fabric |
| 09/17/1991 | US5048589 Non-creped hand or wiper towel |
| 09/10/1991 | US5047120 Method for manufacture of lightweight frothed mineral wool panel |
| 09/04/1991 | EP0332618B1 Method of making soft paper |
| 08/28/1991 | EP0305433A4 Method for manufacturing a mineral panel |
| 08/28/1991 | EP0297132A4 Method for manufacture of lightweight frothed mineral wool panel |
| 08/28/1991 | EP0296233A4 Low density frothed mineral wool panel and method |
| 08/14/1991 | EP0440697A1 A paper machine for manufacturing a soft crepe paper web. |
| 08/13/1991 | US5039378 Flexographic printing; cellulose fibers with white pigments |
| 07/31/1991 | CN1053464A Compounding method of fine filter paper board raw material |
| 07/10/1991 | EP0296242A4 Low density mineral wool panel and method |
| 07/03/1991 | CA2007092A1 Method for fabricating thermal and insulation acaustic panels and sound absorbing units and panels fabricated by same |
| 06/26/1991 | EP0434459A1 Packaging materials and processes for producing packaging materials |
| 06/12/1991 | EP0431750A2 Multi-layered papermakers fabric for thru-dryer application |
| 06/11/1991 | US5022963 Wet end corrugating of acoustical tile |
| 06/04/1991 | US5020581 Process for inserting rigid segments in security paper |
| 05/29/1991 | EP0428768A1 Dryer section of machines for making webs of fibrous materials |
| 05/29/1991 | EP0428689A1 Method for imparting texture in wet pulp |
| 05/28/1991 | CA1284435C Kraft linerboard by densification and heat treatment |
| 05/08/1991 | EP0426288A2 Method for producing a high bulk paper web and product obtained thereby |
| 05/07/1991 | US5013599 Uniformity for printing |
| 05/07/1991 | US5013405 Method of making a low density frothed mineral wool |
| 05/07/1991 | US5013330 Multi-layered papermakers fabric for thru-dryer application |
| 04/30/1991 | US5011575 Inclined multiplyformer |
| 04/23/1991 | US5009747 Water entanglement process and product |
| 04/18/1991 | WO1991005105A1 Cross direction profile control for multiple station web forming machine |
| 04/16/1991 | CA1282912C Process for forming a sheet of material |
| 04/03/1991 | EP0420360A2 Composite fibrous polyethylene sheet |
| 03/30/1991 | CA2026489A1 Composite fibrous polyethylene sheet |
| 03/19/1991 | CA1281566C Bleached kraft paperboard by densification and heat treatment |
| 03/19/1991 | CA1281512C Electro magnetic interference shielding |
| 02/07/1991 | WO1991001398A1 A method of forming a patterned non-woven |
| 02/06/1991 | EP0411752A1 Method for hydroentangling non-woven fibrous sheets |
| 01/22/1991 | US4986881 Washing and thickening |
| 01/02/1991 | EP0406221A2 Liquid treatment of and liquid extraction on a paper pulp |
| 12/27/1990 | EP0404189A1 A method of making a two-ply tissue and a two-ply tissue product |
| 12/23/1990 | CA2019498A1 Layered two-ply tissue process and product |
| 12/13/1990 | WO1990015189A1 Method and apparatus for imparting texture in wet pulp and product |
| 12/12/1990 | EP0380471A4 Nonwoven fabric-like product using a bacterial cellulose binder and method for its preparation |
| 11/28/1990 | EP0399522A2 Creped tissue web and method of making same |
| 11/13/1990 | US4969975 Dispersion, depositing and drainage on foraminous support |
| 11/07/1990 | CN1010329B Filter paper made from mulberry bark biber and making process thereof |
| 11/06/1990 | US4968554 Polyolefins, noncurling |
| 11/06/1990 | US4967805 Multi-ply forming fabric providing varying widths of machine direction drainage channels |
| 10/31/1990 | EP0229562B1 Double-layered paper product for printing and process for its manufacture |
| 10/24/1990 | EP0394134A1 Process for marking a flexible structure, flexible structure obtained and its use in a process for marking a cellulose web |
| 10/16/1990 | US4963230 Agricultural paper and process for producing the same |
| 10/09/1990 | US4961824 Feeding high consistency pulp suspension onto surface layer to form intermediate layer |
| 09/26/1990 | EP0389404A2 Web former |
| 09/19/1990 | EP0387893A1 Ink-jet recording paper |
| 08/08/1990 | EP0380471A1 Nonwoven fabric-like product using a bacterial cellulose binder and method for its preparation |
| 08/01/1990 | EP0380127A2 Thermosealing paper for tea bags, and process for making the same |