Waste Paper Or Textile Waste Patents (Class 162/147)
-
Patent number: 7311801Abstract: The object of the present invention provides a newsprint paper having a friction coefficient in an appropriate range, a sufficient sizing quality, a low “neppari” strength and excellent printability. A newsprint paper having a static friction coefficient in an appropriate range of 0.44-0.74, a sufficient sizing quality and a low “neppari” strength can be obtained by applying a coating solution containing an alkenyl ketene dimer represented by general formula 1 below and a paper surface-modifying agent on a newsprint base paper, especially a neutralized newsprint base paper containing 1% by weight or more and 30% by weight or less of calcium carbonate as a filler and 50% by weight or more of deinked pulp. wherein R1 and R2 represent an unsaturated hydrocarbon group containing 8-30 carbon atoms.Type: GrantFiled: February 19, 2004Date of Patent: December 25, 2007Assignee: Nippon Paper Industries Co., Ltd.Inventors: Hiroshi Ono, Satoshi Ishioka, Fuminari Nonomura, Yasunori Nanri
-
Patent number: 7306846Abstract: 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 densified. The particles have a density of at least 0.3 g/cc.Type: GrantFiled: August 19, 2005Date of Patent: December 11, 2007Assignee: Weyerhaeuser CompanyInventors: Ramon C. Dezutter, Michael R. Hansen
-
Publication number: 20070227680Abstract: A method for manufacturing shock absorbing materials using wastepaper using vacuum forming principle and wastepaper shock absorbing materials using the method are disclosed, wherein the method comprises: disintegrating wastepaper selected from at least one or more of Korea Old Corrugated Container (KOCC), Korea Old Newspaper (KONP) and milk carton, using a blender; diluting the disintegrated wastepaper to manufacture pulp suspension; mixing the pulp suspension with cationic starch; vacuum-dehydrating the pulp cationic starch mixed with the pulp suspension to a dual direction using a vacuum forming capable of dual vacuuming to manufacture a shock absorbing material; drying the shock absorbing material; and performing a surface sizing process on a surface of the dried shock absorbing material, such that a shock absorbing material having a remarkably low elastic modulus and density can be effectively manufactured without recourse to the conventional press performed by a press plate.Type: ApplicationFiled: December 1, 2006Publication date: October 4, 2007Inventors: Chul hwan Kim, Young min Lee, Dae bin Song
-
Patent number: 7267773Abstract: An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suitable plant matter in an attached periphyton bed, harvesting the algae/plant matter to produce a wet algal biomass, and mixing the wet biomass with a shredded fibrous material to produce a pulp. The pulp can be molded into a biodegradable package that can be utilized as a delivery vehicle to a site having nutrient-enrichable soil, where the package can be used as a soil amendment after being used as a delivery vehicle. The pulp can also be made into a paper product that is biodegradable and has the characteristic of enhancing soil quality.Type: GrantFiled: April 8, 2005Date of Patent: September 11, 2007Assignee: Science Applications International CorporationInventors: Kyle R. Jensen, R. Glenn Brosch, Roxanne M. Jensen
-
Patent number: 7250382Abstract: Disclosed is a water disintegratable sheet including bast/leaf fibers and at least one kind of primary fibers. The bast/leaf fibers have a Canadian Standard freeness value of at most 600 milliliter and occupy 2 to 75% by weight of a total fiber weight of the sheet.Type: GrantFiled: October 8, 2002Date of Patent: July 31, 2007Assignee: Uni-Charm CorporationInventors: Hisashi Takai, Kazuya Okada, Takayoshi Konishi
-
Patent number: 7241711Abstract: Disclosed is a water disintegratable sheet of which fibers are hydroentangled about each other. The water disintegratable sheet includes: at least one kind of primary fibers having a fiber length of at most 10 millimeter; and bast/leaf fibers having a Canadian Standard freeness value of at most 600 milliliter and a fiber length of at most 10 millimeter.Type: GrantFiled: October 8, 2002Date of Patent: July 10, 2007Assignee: Uni Charm CorporationInventors: Hisashi Takai, Kazuya Okada, Takayoshi Konishi
-
Patent number: 7160418Abstract: An improved process for making sheet from a fibrous furnish includes: depositing the furnish on a foraminous support; compactively dewatering the furnish to form a nascent web; drying the web on a heated cylinder; creping the web therefrom and throughdrying the web to a finished product. The microstructure of the web is controlled so as to facilitate throughdrying. The product exhibits a characteristic throughdrying coefficient of from 4 to 10 when the airflow through the sheet is characterized by a Reynolds Number of less than about 1. The novel products of the invention are characterized by wet springback ratio, hydraulic diameter and an internal bond strength parameter.Type: GrantFiled: March 23, 2004Date of Patent: January 9, 2007Assignee: Georgia-Pacific CorporationInventors: Steven L. Edwards, Greg A. Wendt, Robert J. Marinack, Michael J. Vander Wielen, Stephen J. McCullough, Jeffrey C. McDowell, Guy H. Super, Gary L. Worry
-
Patent number: 7122098Abstract: The present invention provides a paper quality improver for papermaking, for improving bulk value, brightness, and opacity of the pulp sheet. Further, the present invention provides a dry efficiency improver. A compound is used as the paper quality improver for papermaking, wherein the compound has less than 4% of lyotropic degree measured by a specific method and the compound satisfies at least two selected from (i) standard improved bulky value of not less than 0.02 g/cm3, (ii) standard improved brightness of not less than 0.5 point and (iii) standard improved opacity of not less than 0.5 point. The compound is added internally into pulp slurry before or in papermaking step.Type: GrantFiled: December 28, 1999Date of Patent: October 17, 2006Assignee: Kao CorporationInventors: Takaaki Tadokoro, Yasushi Ikeda, Toshiyuki Nishimori, Hiromichi Takahashi
-
Patent number: 7040054Abstract: A multi-purpose paper, a manufacturing method thereof, and an application thereof are provided. The method of manufacturing the multi-purpose paper comprises steps of (a) providing a papermaking material and obtaining a clean paper pulp by treating the papermaking material, (b) adding at least one functional additive into the clean paper pulp to form the multi-purpose paper, and (c) processing the multi-purpose paper to form thereon an uneven surface structure. The cultivating paper has the combined functions of weed control, pest control, supplying the required nutrients to plants to help develop the root system, maintaining moisture and breath for the root system. The multi-purpose paper can be carriers of agricultural antagonistic microorganisms and serve as the basic functional substrate for weed control, pest control, sowing, growing seedlings, fertilization, fertilizer saving, manpower saving and organic cultivating.Type: GrantFiled: March 28, 2003Date of Patent: May 9, 2006Assignee: Yuen Foong Yu Paper MFG Co., LTDInventor: Ching-Chung Huang
-
Patent number: 6893536Abstract: The invention relates to a process for producing a coated paper web, According to the process, a paper web is formed from a fibrous raw material in a paper machine, the paper web is coated with a pigment-containing coating mix, and the coated paper web is calendered. According to the invention, the paper web is coated with a coating composition that contains as the mineral pigment mainly a mixture of gypsum and calcium carbonate, the amount of gypsum being at minimum 10% by weight of the total amount of gypsum and calcium carbonate. With mixtures of calcium carbonate and gypsum, such as mixtures of PCC and gypsum and mixtures of PCC, ground carbonate and gypsum, there are obtained simultaneously a sufficient gloss and smoothness as well as a brightness and opacity better than with PCC-kaolin pastes.Type: GrantFiled: January 29, 2001Date of Patent: May 17, 2005Assignee: M-Real OyjInventors: Teuvo Ilmonen, Soili Hietanen, Markku Leskelä
-
Patent number: 6890405Abstract: To reduce the problem of tackiness caused by contaminants in recycled paper, effective amounts of talc and a terpene such as D-limonene are added to paper stock in conjunction with chemical fixing agents and retention aids. The terpene increases the affinity of the contaminants for the talc, thus increasing detackification of the contaminants and improving the productivity of the papermaking process.Type: GrantFiled: November 12, 2003Date of Patent: May 10, 2005Assignee: Manistique Papers, Inc.Inventor: Thomas C. C. Mah
-
Patent number: 6835282Abstract: Disclosed is a process for preparing a paper web. The paper web is prepared from a low-grade furnish, which contains low-grade pulps, such as recycled pulp and/or groundwood pulp, and which, in one preferred embodiment, is a newsprint furnish. In accordance with the disclosed process, a pre-flocculated filler is added to the furnish prior to forming the paper web from the furnish. Filler will be retained in the web, and retention of undesired components of the furnish in the web will be reduced as compared with newsprint in which a filler is incorporated via conventional processes. Another embodiment contemplates the incorporation of a pre-flocculated coated broke slurry into a paper furnish prior to paper formation. The paper web formed via the process of the invention will have improved properties as a result of the incorporation of the pre-flocculated filler or treated broke into the web.Type: GrantFiled: January 4, 2002Date of Patent: December 28, 2004Assignee: Grain Processing CorporationInventors: Richard D. Harvey, Stuart W. Mabee, James M. Crandall
-
Publication number: 20040226672Abstract: The invention relates to the use of certain lipolytic enzymes such as cutinases and lipases in the manufacture of paper and paper products from recycled paper. Examples of such enzymes are derived from strains of Humicola, Candida, Fusarium and Pseudomonas. By use of these enzymes, the problems relating to the so-called “stickies” derived from waste paper are reduced.Type: ApplicationFiled: May 14, 2004Publication date: November 18, 2004Applicant: Novozymes A/SInventors: Kim Borch, Henrik Lund, Masaki Sharyo, Hiromichi Sakaguchi, Hanne Host Pedersen, James William Fitzhenry
-
Publication number: 20040226673Abstract: An improved process for making sheet from a fibrous furnish includes: depositing the furnish on a foraminous support; compactively dewatering the furnish to form a nascent web; drying the web on a heated cylinder; creping the web therefrom and throughdrying the web to a finished product. The microstructure of the web is controlled so as to facilitate throughdrying. The product exhibits a characteristic throughdrying coefficient of from 4 to 10 when the airflow through the sheet is characterized by a Reynolds Number of less than about 1. The novel products of the invention are characterized by wet springback ratio, hydraulic diameter and an internal bond strength parameter.Type: ApplicationFiled: March 23, 2004Publication date: November 18, 2004Inventors: Steven L. Edwards, Greg A. Wendt, Robert J. Marinack, Michael J. Vander Wielen, Stephen J. McCullough, Jeffrey C. McDowell, Guy H. Super, Gary L. Worry
-
Publication number: 20040226676Abstract: The present invention relates to a method for controlling pitch and stickies deposit in a pulp and papermaking process using crosslinked cationic polymers made by controlled addition of a water soluble radical initiator at reaction temperature with agitation for chain extension and crosslinking.Type: ApplicationFiled: April 20, 2004Publication date: November 18, 2004Inventors: Zhiqiang Song, Philip Anson Ford
-
Patent number: 6815022Abstract: One or more sheet material layers in a multi-layer laminated structure is reinforced by adhesive bridges that extend through openings in the layer and tie together the layers on either side of the reinforced layer. A plurality of openings are provided in the layer or layers to be reinforced. The openings are spaced apart and distributed over the surface of the layer. Accordingly, when the layer is incorporated into a multi-layer structure, the adhesive applied to the layer, or to the layers on either side thereof, is forced through the openings so that a continuous adhesive connection is formed between the layers on opposite sides of the reinforced layer via the adhesive bridges that extend through the openings.Type: GrantFiled: June 18, 2002Date of Patent: November 9, 2004Assignee: Sonoco Development, Inc.Inventors: Lawrence E. Renck, Stéphane Demare
-
Patent number: 6811653Abstract: A multi-purpose paper, a manufacturing method thereof, and an application thereof are provided. The method of manufacturing the multi-purpose paper comprises steps of (a) providing a papermaking material and obtaining a clean paper pulp by treating the papermaking material, (b) adding at least one functional additive into the clean paper pulp to form the multi-purpose paper, and (c) processing the multi-purpose paper to form thereon an uneven surface structure. The cultivating paper has the combined functions of weed control, pest control, supplying the required nutrients to plants to help develop the root system, maintaining moisture and breath for the root system. The multi-purpose paper can be carriers of agricultural antagonistic microorganisms and serve as the basic functional substrate for weed control, pest control, sowing, growing seedlings, fertilization, fertilizer saving, manpower saving and organic cultivating.Type: GrantFiled: October 26, 2001Date of Patent: November 2, 2004Assignee: Yuen Foong Yu Paper MFG Co., Ltd.Inventor: Ching-Chung Huang
-
Publication number: 20040177938Abstract: An object of the present invention is to provide a newsprint paper having a friction coefficient in an appropriate range, a sufficient sizing quality, a low “neppari” strength and excellent printability.Type: ApplicationFiled: February 19, 2004Publication date: September 16, 2004Inventors: Hiroshi Ono, Satoshi Ishioka, Fuminari Nonomura, Yasunori Nanri
-
Publication number: 20040168781Abstract: Disclosed herein is paper pulp and a method of making paper pulp. The paper pulp includes at least one of cellulose fibre and mechanical pulp fibre, filler, and noil produced from refined cellulose fibre in a range of 0.1 to 15% by weight of the paper pulp. The noil includes noil fibrils having a size distribution corresponding to a Bauer-McNett wire screen fraction size P50. The paper pulp is adapted for use in manufacturing at least one of printing paper and graphic cardboard paper. The method includes refining cellulose fibre to produce noil including noil fibrils having a size distribution corresponding to a Bauer-McNett wire screen fraction size P50. The method also includes mixing filler and the noil with at least one of cellulose fibre and mechanical pulp fibre, such that the noil comprises between 0.1 and 15% by weight of the paper pulp.Type: ApplicationFiled: January 8, 2004Publication date: September 2, 2004Inventor: Petri Silenius
-
Patent number: 6740372Abstract: A pillar or board is formed of a casing, filling materials, and at least one plug. The casing is made of the discarded recyclable paper and is provided with at least one opening. The filling materials are sawdust and the discarded wood blocks, which are encased by the casing. The plug is made of the discarded recyclable paper and is used to stop up the opening of the casing.Type: GrantFiled: June 19, 2002Date of Patent: May 25, 2004Inventor: Hsiu-Sheng Shih
-
Publication number: 20040089433Abstract: Additives for paper making are disclosed herein. Specifically, the additives are wax-free alternatives to conventional coatings, including ASA, AKD and optionally an acrylic containing composition. Other additives may be included in the coating, such as cationic particles or compositions. The coatings may be used at a variety of points during the paper making process, including on the calender stack and in the wet end.Type: ApplicationFiled: October 24, 2003Publication date: May 13, 2004Inventors: Charles W. Propst, James C. Jones
-
Publication number: 20040079497Abstract: A method of processing papermaking fiber includes characterizing the initial color of the pulp and the color of the pulp after treatment with a phloroglucinol stain. The color response of the pulp to the stain has been found to be a better indicator of processing needs for secondary pulps in particular and in any event is selective for untreated groundwood as opposed to conventional groundwood identification methods. The color difference is used to target a suitable product for the pulp, to aid in bleaching/deinking strategy or to enable optimization of fiber blending for particular products. In a preferred embodiment the process includes determining changes in CIE L*, a*, b* and brightness values before and after staining of the pulp.Type: ApplicationFiled: April 29, 2003Publication date: April 29, 2004Inventors: Henry Chou, Hazen C. Thomas, Andrew C. Palm, Terry P. Witkowski, Robert J. Clausing, Stephanie Keen, David J. DiPietro
-
Publication number: 20040060677Abstract: A method of manufacturing a multi-purpose functional agricultural mulching paper is disclosed. The method comprises steps of (a) providing a papermaking material, (b) treating the papermaking material to form a cleaned paper pulp, and (c) adding at least one functional additive into the cleaned paper pulp and treating the cleaned paper pulp to form the multi-purpose functional agricultural mulching paper. The multi-purpose functional agricultural mulching paper of the present invention can be applied in week control, pest control, bacterial control, plant disease control, growing seedling, fertilizer supply and seed sowing to increase the economic benefits.Type: ApplicationFiled: September 27, 2002Publication date: April 1, 2004Inventor: Ching-Chung Huang
-
Patent number: 6709550Abstract: A multi-layered paper web that has increased strength for minimizing slough and lint is provided. In one embodiment, the paper web contains an outer layer formed from unrefined hardwood fibers and an inner layer formed from refined hardwood, softwood, and machine broke fibers. During formation within a headbox, the outer and inner fibrous layers are allowed to partially blend. By partially blending the layers, the fibers within each layer can form bonds in the −z direction to provide sufficient strength to minimize lint and slough.Type: GrantFiled: August 22, 2002Date of Patent: March 23, 2004Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Jeffrey D. Holz, Thomas G. Neal, Jr., Robert E. Donnelly, Michelle Nault, Devany H. Martin
-
Publication number: 20040040680Abstract: A papermaking process, and a paper product made from the process, wherein a biodegradable plastic is used with papermaking material. The biodegradeable plastic may be provided as a substrate, with the papermaking material being applied to the substrate. The papermaking material may include recycled paper fibers and/or agricultural crop material. Recycled wood fibers may be applied in a fibrous state or agricultural plant material may be powdered and applied to the substrate. The surface material is affixed to the substrate by the application of heat and pressure or by the use of vegetable slime juice as an adhesive.Type: ApplicationFiled: September 2, 2003Publication date: March 4, 2004Inventor: Sachiko Iwasaki
-
Patent number: 6692615Abstract: An organic substrate is manufactured from recycled waste paper, cotton fiber and cotton gin waste, and gypsum. The recycled waste products are combined to form a slurry mixture for processing by conventional paper making machinery into a substrate that may be used in sheet form or comminuted pieces.Type: GrantFiled: April 16, 2002Date of Patent: February 17, 2004Inventor: Timothy D. Cathey
-
Publication number: 20040000383Abstract: This invention relates to a rapid process for determining groundwood pulp derived from waste paper. The process comprises (a) preparing a pulp from recycle furnish to form secondary papermaking fiber; and (b) preparing an absorbent sheet from said secondary papermaking fiber, characterizing the initial color of the absorbent sheet and staining the absorbent sheet with a phloroglucinol stain, characterizing the color of the absorbent sheet and comparing the color of the stained sheet with the initial color and selecting a target paper product based on the comparison.Type: ApplicationFiled: April 29, 2003Publication date: January 1, 2004Inventors: Henry Chou, Hazen C. Thomas, Andrew C. Palm, Terry P. Witkowski, Robert J. Clausing, Stephanie Keen, David J. DiPietro
-
Patent number: 6641749Abstract: A method for manufacturing a tire retardant cellulose insulation with reduced density and reduced settling. The method consists of adding a material, the fibers of which have a positive electrostatic charge, onto a shredded newspaper base either before or after the addition of a pre-coat, consisting of a mixture of limestone and an antistat. A fire retardant agent is then added and the materials are ground in a finish mill. The newspaper fibers become positioned at an angle to the paper pieces, increasing the distance between the paper pieces, thereby lowering the density of the cellulose. Fibers such as ground cardboard, wood mulch, sawdust, and fiberglass fibers are examples of materials with electrostatically positively charged fibers.Type: GrantFiled: April 29, 2002Date of Patent: November 4, 2003Inventor: Leonard D. Rood
-
Patent number: 6641750Abstract: An improved fire retardant cellulose insulation with reduced density and reduced settling. A method consists of adding a material, the fibers of which have a positive electrostatic charge, is added onto a shredded newspaper base either before or after the addition of a pre-coat, consisting of a mixture of an inorganic, non-hygroscopic powder and an antistat. A fire retardant agent is then added and the materials are ground in a finish mill. The newspaper fibers become positioned at an angle to the paper pieces, increasing the distance between the paper pieces, thereby lowering the density of the cellulose. Increasing the amount of antistat will decrease settling at the expense of increasing density. Adding water to the insulation system will neutralize static electricity and minimize settling. Fibers such as ground cardboard, wood mulch, sawdust, and fiberglass fibers are examples of materials with electrostatically positively charged fibers.Type: GrantFiled: January 10, 2003Date of Patent: November 4, 2003Inventor: Leonard D. Rood
-
Publication number: 20030196772Abstract: An absorbent sheet of cellulosic fiber typically includes at least about 15% by weight of high coarseness, generally tubular and lignin-rich cellulosic fiber based on the combined weight of cellulosic fiber in the sheet. Lignin-rich high coarseness, generally tubular fiber employed may be characterized by a coarseness of at least about 20 mg/100 m and an average length of 2 mm. The sheet is prepared by way of a process including applying a dewatered web to a heated rotating cylinder and creping the web from the heated cylinder with an undulatory creping blade. Preferred lignin-rich, high coarseness, generally tubular fibers include thermo and chemi mechanical pulps. A particularly preferred embodiment is a sheet including at least about 15% BCTMP.Type: ApplicationFiled: April 2, 2003Publication date: October 23, 2003Inventors: Anthony O. Awofeso, Kang C. Yeh, Ronald R. Reeb, Henry Chou, Bruce W. Janda
-
Publication number: 20030168191Abstract: This invention, in one aspect, relates to a multi-ply paperboard having at least three inner plies and, in some aspects, a top liner and a back liner, wherein the multi-ply paperboard is derived from fiber sources comprising at least about 80% by weight recycled fiber. The multi-ply paperboard of the present invention exhibits strength characteristics comparable those of paperboard prepared from virgin board. In further aspects, the invention relates to methods of making the multi-ply paperboard of the present invention.Type: ApplicationFiled: March 26, 2002Publication date: September 11, 2003Inventors: James K. Hansen, Richard L. Munson, Roberto Balaguer, Jeffrey M. Leitinger, Thomas F. Barton
-
Patent number: 6602389Abstract: Disclosed is a process for preparing a paper web. The paper web is prepared from a low-grade furnish, which contains low-grade pulps, such as recycled pulp and/or groundwood pulp, and which, in one preferred embodiment, is a newsprint furnish. In accordance with the disclosed process, a pre-flocculated filler is added to the furnish prior to forming the paper web from the furnish. Filler will be retained in the web, and retention of undesired components of the furnish in the web will be reduced as compared with newsprint in which a filler is incorporated via conventional processes. Another embodiment contemplates the incorporation of a pre-flocculated coated broke slurry into a paper furnish prior to paper formation. The paper web formed via the process of the invention will have improved properties as a result of the incorporation of the pre-flocculated filler or treated broke into the web.Type: GrantFiled: January 4, 2002Date of Patent: August 5, 2003Assignee: Grain Processing CorporationInventors: Richard D. Harvey, Stuart W. Mabee, James M. Crandall
-
Publication number: 20030079848Abstract: The invention relates to a method for the production of paper or board, wherein retention aids are added to the stream of stock. Improved retention and more effective dewatering are achieved by adding to the stream of stock a cationic polymer solution and a suspension-form microparticle mixture composed of a swellable clay of the smectite group and a colloidal synthetic metal silicate in which the prevalent cation is magnesium.Type: ApplicationFiled: May 31, 2002Publication date: May 1, 2003Inventors: Jonni Ahlgren, Kimmo Strengell
-
Patent number: 6554960Abstract: An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suitable plant matter in an attached periphyton bed, harvesting the algae/plant matter to produce a wet algal biomass, and mixing the wet biomass with a shredded fibrous material to produce a pulp. The pulp can be molded into a biodegradable package that can be utilized as a delivery vehicle to a site having nutrient-enrichable soil, where the package can be used as a soil amendment after being used as a delivery vehicle. The pulp can also be made into a paper product that is biodegradable and has the characteristic of enhancing soil quality.Type: GrantFiled: September 16, 2002Date of Patent: April 29, 2003Assignee: Science Applications International CorporationInventors: Kyle R. Jensen, R. Glenn Brosch, Roxanne M. Jensen
-
Publication number: 20030051837Abstract: The invention relates to a noil for use in paper manufacture, to be mixed in mixed in the paper pulp. The noil has been produced from cellulose fibre by refining and consists of noil fibrils that, in respect of size distribution, mainly correspond to wire screen fraction P50, and the noil constitutes 0.1-15 w-% of the paper pulp.Type: ApplicationFiled: August 5, 2002Publication date: March 20, 2003Inventor: Petri Silenius
-
Publication number: 20030041987Abstract: An acoustical panel has a fiberboard which includes a fibrous filler and a base binder, and a nodulated overlay disposed on the fiberboard, wherein the overlay includes nodulated wool and an overlay binder and has a substantially smooth surface. In one embodiment of the present invention, the fibrous filler is mineral wool and the base binder is granular starch. In an another embodiment of the present invention, the nodulated wool is nodulated mineral wool and the overlay binder is cooked pearl cornstarch.Type: ApplicationFiled: July 23, 2002Publication date: March 6, 2003Applicant: Armstrong World Industries, Inc.Inventors: Robert E. Foster, Larry R. Parks, James R. Lokey, John J. Janczura, Robert G. Ganse, Barry Buhay, Walter W. Chamberlain, John Felegi
-
Patent number: 6517673Abstract: The present invention relates to a soft, thick, single-ply, printed, absorbent paper product having a Yankee side and an air side wherein the absorbent paper is printed on before or after embossing on the Yankee side, air side, or both sides, said absorbent paper exhibiting a serpentine configuration. This inventions also relates to a process for the manufacture of such absorbent paper product having a basis weight of at least about 12.5 lbs. per 3000 square foot ream and having low sidedness, said tissue exhibiting: a specific total tensile strength of between 40 and 200 grams per 3 inches per pound per 3000 square foot ream, a cross direction specific wet tensile strength of between 2.75 and 20.0 grams per 3 inches per pound per 3000 square foot ream, the ratio of MD tensile to CD tensile of between 1.25 and 2.75, a specific geometric mean tensile stiffness of between 0.5 and 3.2 grams per inch per percent strain per pound per 3000 square foot ream, a friction deviation of less than 0.Type: GrantFiled: May 10, 2000Date of Patent: February 11, 2003Assignee: Fort James CorporationInventors: Michael S. Heath, T. Philips Oriaran, Mark S. Siegel, Frank D. Harper, John H. Dwiggins
-
Patent number: 6511579Abstract: The present invention is a method of making a near-premium quality paper product having good strength and absorbency characteristics and a product made by that method. The invention is also a method for retaining a high ash content within a paper web formed by conventional wet pressing. The present invention is also a method for retaining a high percentage of softening agent within a paper web that includes such an agent. Further, the present invention is a soft absorbent paper product having a high void volume. Finally, the invention is also a method for producing a soft, absorbent, and near premium paper product having a high void volume using an undulatory crepe blade having a multiplicity of serrulations in its rake surface which presents differentiated creping angles and/or rake angles as to the paper being creped.Type: GrantFiled: June 11, 1999Date of Patent: January 28, 2003Assignee: Fort James CorporationInventors: Steven L. Edwards, David W. White, Frank D. Harper, John H. Dwiggins
-
Publication number: 20020195215Abstract: A multi-layered paper web that has increased strength for minimizing slough and lint is provided. In one embodiment, the paper web contains an outer layer formed from unrefined hardwood fibers and an inner layer formed from refined hardwood, softwood, and machine broke fibers. During formation within a headbox, the outer and inner fibrous layers are allowed to partially blend. By partially blending the layers, the fibers within each layer can form bonds in the −z direction to provide sufficient strength to minimize lint and slough.Type: ApplicationFiled: August 22, 2002Publication date: December 26, 2002Inventors: Jeffrey D. Holz, Thomas G. Neal, Robert E. Donnelly, Michelle Nault, Devany H. Martin
-
Publication number: 20020162635Abstract: A product and process of making an absorbent paper article such as paper products, towels, napkins and the like is disclosed. In the invention, one may supply a single furnish, or slurry, of cellulose fibers. Then, it is possible to separate or fractionate the slurry into at least two portions based upon fiber length in the slurry. Fines are employed in the process of manufacturing the products, and fines are specifically incorporated into an inner layer of the final paper products. Fines, short fibers, and/or fibrils are used in the process so they may contribute in a positive manner to the final paper product, rather than acting in a negative manner as a chemical “sponge” or waste material. This use of fines in the inner layers of the product reduces the manufacturing cost and waste produced in the process. A soft paper product with good strength characteristics results from the process.Type: ApplicationFiled: May 10, 2002Publication date: November 7, 2002Inventors: Jay C. Hsu, Nauman N. Lakhani
-
Publication number: 20020148581Abstract: Processes for manufacturing a paper product from cellulose pulp, part of which comes from a broke and part of which comes from a fresh pulp are provided. The processes involve first redissolving in a broke pulper, with stirring and in an alkaline medium, cellulose fibers contained in said broke to form a broke pulp. Next, the broke pulp is brought to a concentration and a pH close to that characteristic of the fresh pulp by (1) diluting said broke pulp with a white water and (2) acidifying said broke pulp by injecting carbon dioxide into said broke pulp after the broke pulp has left the broke pulper and before admixing said broke pulp with said fresh pulp. Then the broke pulp is admixed with the fresh pulp to form a pulp mixture and the pulp mixture is dewatered to form a paper product and a white water.Type: ApplicationFiled: June 17, 2002Publication date: October 17, 2002Inventors: Jean-Mathieu De Rigaud, Alain Sauvage
-
Publication number: 20020088577Abstract: A process for making absorbent sheet includes: (a) depositing an aqueous furnish of cellulosic fiber on a forming fabric; (b) dewatering the wet web to a consistency of from about 15 to about 40 percent; (c) transferring the dewatered web from the forming fabric to another fabric traveling at a speed of from about 10 to about 80 percent slower than the forming fabric; (d) wet-shaping the web on an impression fabric whereby the web is macroscopically rearranged to conform to the surface of the impression fabric; and (e) impingement air drying the web. The process is particularly suitable for making high bulk products form difficult to process furnishes such as recycle furnishes and for making high basis weight products without compressive dewatering with a papermaking felt.Type: ApplicationFiled: April 18, 2001Publication date: July 11, 2002Inventors: Gary M. Watson, Steven L. Edwards
-
Publication number: 20020074100Abstract: The present invention is a through-air-drying process for producing a fibrous web that possesses not only softness and absorbency but also strength. The method of the present invention monitors and controls the overall charge in the headbox.Type: ApplicationFiled: December 20, 2001Publication date: June 20, 2002Applicant: James River CorporationInventors: Kang Chang Yeh, Gary L. Worry, Thomas N. Kershaw, Henry S. Ostrowski
-
Patent number: 6406592Abstract: The present invention concerns a method for producing a base paper for fine papers, the base paper being produced from a mixture of a mechanical pulp and a chemical pulp. The chemical pulp used comprises a chemical softwood pulp having a elastic modulus close to that of the mechanical pulp and a great bonding strength. It is preferred to use a chemical softwood pulp which produces a sheet having a elastic modulus of less than 6000 N/mm2 when the bonding strength is 400 J/m2. A pulp of this kind has a good ScottBond strength at the same light scattering. The base paper produced by the method can therefore be used in double-coated fine papers which require a large bonding strength of the base paper.Type: GrantFiled: September 16, 1998Date of Patent: June 18, 2002Assignee: M-real OyjInventors: Markku Leskelä, Kaarlo Johannes Niskanen, Stina Nygård, Maija Pitkänen
-
Patent number: 6391154Abstract: The invention concerns a method for producing a paper web. According to the method a stock is produced from the fibrous raw material and the stock is formed to a web which is dried on a paper machine. According to the invention the stock is formed from a mechanical pulp prepared from wood material of the Populus family and from bleached chemical spruce pulp, whereby the amount of the mechanical pulp is 20 to 70 weight-% and the amount of the bleached chemical softwood pulp is 80 to 30 weight-% of the dry matter of the stock. It is preferred to use an aspen pulp, over 70% of the fiber fractions of which comprise fiber fractions +100, +200 and −200, and the proportion of the −200 fraction is 45% or less. A coated fine paper can be produced from the paper web whose properties are better than those of a traditional fine paper having the corresponding bulk and grammage, on the same capacity level the paper produced by the invention will give a yield gain of up to more than 20%.Type: GrantFiled: September 16, 1998Date of Patent: May 21, 2002Assignee: M-real OyjInventors: Stina Nygård, Markku Leskelä, Maija Pitkänen
-
Patent number: 6350350Abstract: An integrated system and method for removing excess nutrients from water, for removing the nutrients from the removal site, for enhancing soil, and for producing pulp and paper products includes bioremediating water to be treated with cultured algae or another suitable plant matter in an attached periphyton bed, harvesting the algae/plant matter to produce a wet algal biomass, and mixing the wet biomass with a shredded fibrous material to produce a pulp. The pulp can be molded into a biodegradable package that can be utilized as a delivery vehicle to a site having nutrient-enrichable soil, where the package can be used as a soil amendment after being used as a delivery vehicle. The pulp can also be made into a paper product that is biodegradable and has the characteristic of enhancing soil quality.Type: GrantFiled: August 23, 1999Date of Patent: February 26, 2002Assignee: Science Applications International Corp.Inventors: Kyle R. Jensen, R. Glenn Brosch, Roxanne M. Jensen
-
Patent number: 6332953Abstract: A paper product suitable for use in making envelopes and the like and having enhanced printability. The enhancement in printability is attained through the use of shoe nip calendering. The final product has the following material properties: (1) a basis weight in the range 16-32 lb./1,300 ft2; (2) a density equal to or less than 0.75 g/cc; (3) a smoothness as measured by the Hagerty/Sheffield test (TAPPI Test Method T 538 om-88) greater than 200 Sheffield units; and (4) a Parker Print Surf roughness as measured by the Parker test (TAPPI Test Method T 555 om-94) less than 5.0 microns (measured using a pressure of 10 kgf/cm2 with a soft backing).Type: GrantFiled: January 7, 2000Date of Patent: December 25, 2001Assignee: International Paper CompanyInventors: Kapil Mohan Singh, Alexander A. Koukoulas, Dennis W. Anderson, Phillip Norrdahl, Douglas L. Hamilton
-
Patent number: 6322667Abstract: The present invention relates to an improved method of treating paper products in order to enhance various properties thereof, and more specifically, including the step of treating the paper with superheated steam. In a method of treating paper during a papermaking process from wood pulp, the step of drying the paper in superheated steam in order to improve certain physical characteristics.Type: GrantFiled: July 12, 1996Date of Patent: November 27, 2001Assignee: McGill UniversityInventors: James M. McCall, W. J. Murray Douglas
-
Patent number: 6309510Abstract: Provided by the present invention is a process for making wet-layed metal fiber nonwoven sheet. The process comprises dispersing a mixture of metal fibers, wood pulp and a fibrillated material into an aqueous dispensing fluid. The amount of metal fibers dispersed generally ranges from 60 to 80 weight percent, based on the weight of solids, with the amount of wood pulp ranging from 15 to 30 weight percent and the amount of fibrillated material ranging from about 5 to 10 weight percent. The dispersed mixture in the aqueous dispensing fluid is then applied to a screen, with the aqueous dispensing fluid being removed to thereby form a metal fiber sheet.Type: GrantFiled: August 2, 1999Date of Patent: October 30, 2001Assignee: FiberMark, Inc.Inventor: Homan B. Kinsley, Jr.
-
Patent number: 6299728Abstract: A multi-ply paper includes a fiber material base layer, which is unbleached or made of wastepaper, and a top layer. Instead of a conventional “white” fiber material top layer, the top layer is in the form of a white or colored top coating.Type: GrantFiled: January 29, 1998Date of Patent: October 9, 2001Assignee: Voith Sulzer Papiermaschinen GmbHInventors: Rüdiger Kurtz, Kurt Hack