| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Kebatsukihishokufuno seizoho | JP8782675 | 1975-07-17 | JPS5132875A | 1976-03-19 | BERUNAADO UIRIAMU KONUEI; JEEMUSU MORAN |
| 22 | Methods for increasing sheet solids after wet pressing operations | EP92304095.0 | 1992-05-07 | EP0512819A1 | 1992-11-11 | Pounder, Joseph R. |
A method is provided for minimizing the rewetting of a sheet after wet pressing of the same with a water receiver, the method comprising: forming before or during the pressing together of the sheet and the water receiver, a surfactant laden or foam-filled region at an interface between the sheet and the water receiver; and separating the water receiver from the sheet after the pressing of the two together. The method allows for the formation of sheets having higher solids after wet pressing. |
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| 23 | Methods for manufacture of paper products | EP86309483.5 | 1986-12-05 | EP0226408B1 | 1991-07-24 | Penniman, John G.; Reichlin, Maria S. |
| 24 | Maufacture of wet laid nonwoven webs | EP88302889.6 | 1988-03-30 | EP0286318A3 | 1990-10-31 | Tse, Stephen H.; Hollenberg, David H.; Martin, Richard L.; Manning, James H. |
A method for forming a non-woven fabric web by wet-laying fibers on paper-making equipment, the web comprising staple length natural or synthetic fibers and wood cellulose paper-making fibers wherein a water furnish of the fibers is made up with a nonionic associative thickener in the absence of a conventional surfactant. A preferred associative thickener for use with hydrophobic fibers is a nonionic urethane block copolymer having a polyethylene glycol backbone, the associative thickener acting as both surfactant and thickener. With predominately cellulosic fibers, i.e. conventional wood cellulose fibers, or a mixture of conventional and contorted wood fibers, and synthetic cellulosic fibers, such as rayon, a nonionic hydroxyethyl cellulose having a long alkyl side chain is preferred. Excellent consistency of the water fiber dispersion is obtained at relatively low viscosity with rapid drainage of water from the wire and uniform formation of the non-woven fabric. |
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| 25 | Methods for manufacture of paper products | EP86309483 | 1986-12-05 | EP0226408A3 | 1988-05-04 | Penniman, John G.; Reichlin, Maria S. |
Novel pulp, paper and paperboard manufacturing methods utilizing water-insoluble solvents. These solvents can be introduced into the pressing operation of the pulp, paper or paperboard making machine or can be substituted for water at any point after the formation stage. The result is a significant saving in dryer energy which can be translated to greater productivity in dryer-limited processes, accompanied by an improvement in tensile strength and other physical properties. |
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| 26 | JPS6135317B2 - | JP3894377 | 1977-04-05 | JPS6135317B2 | 1986-08-12 | BAANAADO UIRIAMU KONUEI |
| 27 | JPS6037209B2 - | JP8782675 | 1975-07-17 | JPS6037209B2 | 1985-08-24 | BERUNAADO UIRIAMU KONUEI; JEEMUSU MORAN |
| 28 | Manufacture of unwoven fabric | JP1782376 | 1976-02-20 | JPS51133580A | 1976-11-19 | RARUFU II BURANDON; CHIYAARUSU JIEI DEEBISU; MIKAERU RINGU; ROI ESU SUUENSON |
| 29 | JPS5113788B1 - | JP2620272 | 1972-03-16 | JPS5113788B1 | 1976-05-04 | |
| 30 | JPS49118961A - | JP2987374 | 1974-03-15 | JPS49118961A | 1974-11-13 | |
| 1450831 Tufted water-laid non-woven fabric DEXTER CORP 14 March 1974 [15 March 1973] 11395/74 Heading D2B A tufted water-laid non-woven fabric has a planar body portion and a plurality of spaced fibre tufts integral therewith and extending therefrom in the form of weft-like fibre bundles, the tufts being composed of individual fibres secured to the body portion at only one end thereof. The fibres may be man made or synthetic polymeric fibres e.g. of nylon, polyester, or vinyl polymers or copolymers, rayon; optionally in combination with natural fibres such as kraft, manila, hemp or jute fibres. Inorganic fibres such as glass, quartz, ceramic, mineral wool, or asbestos fibres may also be used. The fibres may have a denier of from 1 to 15 d.p.f. and a length ranging from 1/16 inch to several inches. The fabric may be formed from a suspension of the fibres in a medium preferably having a viscosity greater than 3 centipoises. The desired viscosity may be obtained by the use of viscosity regulants such as water-soluble acrylamides, polyethylene oxide, carboxymethyl cellulose, water-soluble polymeric electrolytes of methacrylic acid and copolymers thereof, degradable enzymes, mixtures of natural and synthetic gums and inorganic salts. The fabric may be formed with a non-woven or woven scrim or gauze embedded within it, the scrim or gauze acting both as the forming element and as a reinforcing element. The fabric may be used for making wash cloths, wiping cloths, towels, wipes, sanitary napkins, blankets, dish cloths, bandages, dressings, wall coverings, insulating materials or filters inter alia. | ||||||
| 31 | Wetlaid nonwovens on high speed machines | US825136 | 1992-01-24 | US5238534A | 1993-08-24 | James H. Manning; Irwin M. Hutten |
| A method for the production of a fibrous web having textile length fibers wherein a fiber furnish is formed by dispersion of the fibers in an unfoamed carrier medium of water and an associative thickener of ethylene oxide base urethane block copolymers or hydroxyethylcellulose ethers having a C.sub.10 to C.sub.24 alkyl side chain in an amount within the range of from about 1 to about 150 pounds of thickener per ton of dry fiber and including an anionic viscosity modifier in the range of 10 to 500 ppm. The furnish having a consistency in the range of 0.05 to 0.2 weight percent fibers is supplied to a high speed papermaking machine for forming a fibrous web. The textile length fibers may be polyester fibers being 1.5 denier and 3/4 inches. The high speed papermaking machine may be a twin-wire papermaking machine or a suction breast roll papermaking machine or a crescent former papermaking machine. | ||||||
| 32 | Methods for manufacturing paper products | US224225 | 1988-09-09 | US5114539A | 1992-05-19 | John G. Penniman; Maria S. Reichlin |
| Novel pulp, paper and paperboard manufacturing methods utilizing water-insoluble organic hydrocarbons. These hydrocarbons can be introduced into the pressing operation of the pulp, paper, or paperboard making machine or can be substituted for water at any point prior to the end of the press section. The result is a significant saving in dryer energy which can be translated to greater productivity in dryer-limited processes. The result is a significant saving in dryer energy which can be translated to greater productivity in dryer limited systems. Functional chemical additives may be dissolved, dispersed or emulsified in the hydrocarbon and thereby introduced into the web. Much less functional chemical additive is required than with wet end addition. | ||||||
| 33 | Manufacture of wetlaid nonwoven webs | US334604 | 1989-04-06 | US4925528A | 1990-05-15 | Stephen H. Tse; David H. Hollenberg; Richard L. Martin; James H. Manning |
| A method for forming a fabric web by wet-laying fibers on paper-making equipment, the web comprising staple length natural or synthetic fibers and optionally wood cellulose papermaking fibers and an adsorbed polymeric surface active agent. The method comprises making up an aqueous fiber furnish with a polymeric surfactant having a plurality of both hydrophilic and hydrophobic groupings per molecule. The polymeric surfactant is adsorbed by the fibers and may be added to the fibers or it may be included in the aqueous carrier medium. In either case, the finished web contains and is improved by the inclusion of the polymeric surfactant. | ||||||
| 34 | Wet-laid, non-woven fabrics | US618325 | 1984-06-08 | US4512849A | 1985-04-23 | Ralph E. Brandon; Charles J. Davis; Michael Ring; Roy S. Swenson |
| An improved process for forming a non-woven fabric by wet-laying, on paper making equipment, staple length, synthetic fibers having a length to diameter ratio of about 400 to 3000, and an improved, non-woven fabric produced by the process. The process involves forming a stable, viscous, uniform, air-fiber-water dispersion by: adding the fibers to a high-shear agitated mixture of water and a dispersant to separate the fibers and to completely and uniformly distribute the individual fibers throughout the resulting, high-shear agitated, air, water and fiber mixture; and then, slowly adding a thixotropic thickener to the high-shear agitated mixture to form the viscous, air-fiber-water dispersion, having a nascent viscosity of about 10 to 125 cps., when measured at a shear rate of 30.5 sec..sup.-1, and in which the individual fibers are restrained from becoming entangled and from forming knits, bundles, and strings. | ||||||
| 35 | Method for preparing fibrous mats from a fibrous suspension | US337923 | 1982-01-08 | US4395306A | 1983-07-26 | George R. Killat |
| Nonwoven mats or sheets having improved tensile strengths are prepared from a fibrous suspension of synthetic fibers thickened with a synthetic, addition polymer bearing pendant carboxamide groups and a cross-linking agent for the polymeric thickener. For example, a fibrous suspension comprising glass fibers, a polymer of acrylamide and a water-soluble hypohalite can be employed to prepare strong, glass fiber mats useful as effective reinforcement for roofing shingles. | ||||||
| 36 | Viscous dispersion for forming wet-laid, non-woven fabrics | US786590 | 1977-04-11 | US4200488A | 1980-04-29 | Ralph E. Brandon; Charles J. Davis; Michael Ring; Roy S. Swenson |
| An improved process for forming a non-woven fabric by wet-laying, on paper making equipment, staple length, synthetic fibers having a length to diameter ratio of about 400 to 3000, and an improved, non-woven fabric produced by the process. The process involves forming a stable, viscous, uniform, air-fiber-water dispersion by: adding the fibers to a high-shear agitated mixture of water and a dispersant to separate the fibers and to completely and uniformly distribute the individual fibers throughout the resulting, high-shear agitated, air, water and fiber mixture; and then, slowly adding a thixotropic thickener to the high-shear agitated mixture to form the viscous, air-fiber-water dispersion, having a nascent viscosity of about 10 to 125 cps., when measured at a shear rate of 30.5 sec..sup.-1, and in which the individual fibers are restrained from becoming entangled and from forming knits, bundles, and strings. | ||||||
| 37 | Improved pulp sheet formation | US868519 | 1978-01-11 | US4198267A | 1980-04-15 | Edwin H. Flaherty |
| The drainage of pulp sheet is improved by treatment of the pulp prior to entry to the sheet making machine with a composition comprising a suspension of finely-divided hydrophobic lubricating particles in a suitable carrier liquid. The invention has particular applicability to paper making wherein the smoothness and printability of the paper is improved and to pulp drying. | ||||||
| 38 | Continuous papermaking process | US674152 | 1976-04-06 | US4081319A | 1978-03-28 | Bernard W. Conway |
| A continuous, essentially closed recirculating papermaking process is provided by using a dispersing medium of adjustable viscosity. The process permits the continuous reuse of the medium under preferred operating conditions. It includes the steps of forming a dispersion of fibers within the adjustable medium containing a pH sensitive viscosity producing agent, reducing the fiber consistency and the viscosity within the dispersion while maintaining the concentration of the agent substantially unchanged, subsequently forming a fibrous web material on a papermaking screen from said dispersion of reduced fiber consistency while separating the dispersing media from the fibers forming the web and continuously collecting the separated media and recirculating it within the system to effect a subsequent fiber dispersion as well as a fiber consistency reduction and viscosity reduction without substantially changing the concentration of the viscosity producing agent. The separated and recirculated dispersing media is capable of forming a high viscosity dispersing media for the fibers at the time of forming the subsequent fiber dispersion without the addition of more viscosity producing agent. | ||||||
| 39 | N-sulfohydrocarbon-substituted acrylamide polymers as formation aids for non-woven stock | US3772142D | 1971-03-23 | US3772142A | 1973-11-13 | DOGGETT R; TSCHIRCH R |
| Polymers of N-sulfohydrocarbon-substituted acrylamides, especially the alkali metal salts of 2-acrylamido-2methylpropanesulfonic acid, are useful as fiber dispersants in the preparation of paper and similar stock.
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| 40 | Suspensions of synthetic polymer fibrous products containing acrylamide polymer and method of making a paper web therefrom | US46986965 | 1965-07-06 | US3391057A | 1968-07-02 | SPENCE THOMAS C; MALCOLM EARL W |
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