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公开(公告)号：US5200035A
公开(公告)日：1993-04-06
申请号：US825121
申请日：1992-01-24
IPC分类号： D21F11/00
CPC分类号： D21F11/002 , Y10S162/11
摘要： A method of foam forming of paper includes the steps of metering a controlled feed of fiber dispersed in an aqueous liquid into a dewatering device, wherein the consistency of the fiber dispersed in the aqueous liquid input to the dewatering device is between about 0.5 and about 7% by weight. A uniform continuous strand of semi-moist pulp is obtained wherein the consistency of the semi-moist pulp leaving the dewatering device is between about 8 and 30% by weight. A stream of a foamed aqueous admixture is obtained and introduced into a dispersing mixer having shearing action extending substantially throughout a zone substantially athwart the flow path of the uniform continuous strand and the foamed aqueous stream and forming a stream of dispersed fiber bearing aqueous foam. The dispersed fiber bearing aqueous stream is conducted to the inlet of a positive displacement pump. Thereafter the dispersed fiber bearing stream is conducted through a headbox and the fibers dispersed in the stream are deposited on a moving foraminous support.
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公开(公告)号：US4498956A
公开(公告)日：1985-02-12
申请号：US540566
申请日：1983-10-11
申请人： James O. Cheshire , Douglas L. Lindgren , Robert J. Marinack , Bruce W. Janda , Robert S. Thut , John T. Larkey , Ray E. Jostad
发明人： James O. Cheshire , Douglas L. Lindgren , Robert J. Marinack , Bruce W. Janda , Robert S. Thut , John T. Larkey , Ray E. Jostad
CPC分类号： D21F9/003 , D21F11/002
摘要： Apparatus and method for the manufacture of a non-woven fibrous web such as paper from a dispersion of fibers in a foamed liquid. In a preferred embodiment, a solution of surfactant in water is initially discharged from a headbox into the nip of a twin forming wire prior to its passage over a curvilinear path defined by a forming roll. The water-surfactant solution is caused repeatedly to pass through the outer one of the twin forming wires until there is created, and stored in a silo, a foamed liquid containing about 65% air in the form of bubbles of from about 20 to about 200 microns in diameter. The foamed liquid is directed from the silo into a mix tank wherein a slurry containing fibers at 20% to 55% solids is added and mixed. The mixture is pumped to the headbox and into the nip of the forming wires. The outer wire retains the fibers while passing and again foaming the liquid for return to the silo and the mix tank for addition of fibers and return to the headbox. The process is continued in formation of a fibrous web.In an alternative embodiment, the curvilinear path is defined by an arcuate surface that is fluid pervious so that the solution to be foamed may pass through both the inner and outer wires.A further alternative embodiment utilizes a single forming wire for receiving the solution prior to passage over a suction breast roll which receives the solution then centrifuges it outwardly in formation of foamed liquid.
摘要翻译： 用于从发泡液体中的纤维分散体制造非织造纤维网如纸的设备和方法。 在一个优选的实施方案中，表面活性剂在水中的溶液最初在从成型辊通过由成形辊限定的曲线路径之前从流浆箱排出到双成形丝的辊隙中。 反复引起水表面活性剂溶液通过双成型丝线的外部，直到产生并存储在筒仓内，包含约20至约200个气泡形式的约65％空气的泡沫液体 直径微米。 泡沫液体从筒仓引导到混合罐中，其中加入含有20％至55％固体的纤维的浆料并混合。 将混合物泵送到流浆箱并进入成形丝的辊隙中。 外线保持纤维，同时通过并再次发泡液体以返回料仓和混合罐以加入纤维并返回流浆箱。 纤维网的形成继续进行。 在替代实施例中，曲线路径由可渗透流体的弓形表面限定，使得待发泡的溶液可以穿过内部和外部线。 另一个替代实施例使用单个成形线在通过吸收乳房辊之前接收溶液，接收溶液然后将其离心离心以形成发泡液体。
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公开(公告)号：US5958187A
公开(公告)日：1999-09-28
申请号：US893455
申请日：1997-07-11
IPC分类号： D21F11/14 , D21H17/07 , D21H17/29 , D21H21/14 , D21H21/20 , D21H23/76 , D21H27/00 , D21H27/30 , D21H27/40 , D21H23/00
摘要： A paper product and a method of making a paper product with a glabrous surface and adapted for use either dry or use in a manually pre-moistened condition. The paper product has temporary wet strength exhibiting an initial normalized CD wet tensile strength of at least about 25 g/1" strip, preferably 35 g/1" strip as measured by the Finch Cup Test 5 seconds after immersion and a subsequent CD wet tensile strength of less than about 2/3 the initial value as measured 30 minutes after immersion. A temporary wet strength agent comprising aldehydic units in the range of from about 2 pounds per ton to about 30 pounds per ton is added to the furnish. A cationic nitrogenous softener/debonder is preferably added to the furnish, in an amount of from about 1 pound per ton to about 6 pounds per ton. The CD dry tensile strength of the paper product is from at least about 133 g/1" up to about 267 g/1", and the tensile modulus is from about 10 to about 32 g/% strain while the GM MMD friction is from about 0.26 to about 0.10. Preferably, the wet strength of the product decays with sufficient speed that the CD wet tensile strength drops to about 15 g/1" strip within 10 hours after immersion. When rubbed against a skin-like surface in a moistened condition, the paper product remains substantially free of pilling.
摘要翻译： 纸制品和制造具有无光泽表面的纸制品的方法，其适用于干燥或用于手动预润湿状态。 纸产品具有临时湿强度，其表现出在浸渍后5秒通过Finch Cup测试测量的至少约25g / l“条，优选35g / l”条的初始标准化CD湿拉伸强度和随后的CD 湿拉伸强度小于约+ E，fra 2/3 + EE浸渍后30分钟测得的初始值。 将含有约2磅/吨至约30磅/吨范围的醛单元的临时湿强剂加入到配料中。 阳离子含氮软化剂/脱粘剂优选以约1磅/吨至约6磅/吨的量加入到配料中。 纸制品的CD干拉伸强度为至少约133g / l“至约267g / l”，拉伸模量为约10至约32g /％应变，而GM MMD摩擦 为约0.26至约0.10。 优选地，产物的湿强度以足够的速度衰变，使得CD浸湿后10小时内CD湿拉伸强度降至约15g / l“。 当在潮湿状态下与皮肤状的表面摩擦时，造纸产品基本上不起球。
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公开(公告)号：US4443299A
公开(公告)日：1984-04-17
申请号：US380026
申请日：1982-05-19
申请人： James O. Cheshire , Douglas L. Lindgren , Robert J. Marinack , Bruce W. Janda , Robert S. Thut , John T. Larkey , Ray E. Jostad
发明人： James O. Cheshire , Douglas L. Lindgren , Robert J. Marinack , Bruce W. Janda , Robert S. Thut , John T. Larkey , Ray E. Jostad
CPC分类号： D21F9/003 , D21F11/002
摘要： Apparatus and method for the manufacture of a non-woven fibrous web, such as paper, from a dispersion of fibers in a foamed liquid. In a preferred embodiment, a solution of surfactant in water is initially discharged from a headbox into the nip of a twin forming wire prior to its passage over a curvilinear path defined by a forming roll. The water-surfactant solution is caused repeatedly to pass through the outer one of the twin forming wires until there is created, and stored in a silo, a foamed liquid containing about 65% air in the form of bubbles of from about 20 to about 200 microns in diameter. The foamed liquid is directed from the silo into a mix tank wherein a slurry containing fibers at 20% to 55% solids is added and mixed. The mixture is pumped to the headbox and into the nip of the forming wires. The outer wire retains the fibers while passing and again foaming the liquid for return to the silo and the mix tank for addition of fibers and return to the headbox. The process is continued in formation of a fibrous web.In an alternative embodiment, the curvilinear path is defined by an arcuate surface that is fluid pervious so that the solution to be foamed may pass through both the inner and outer wires.A further alternative embodiment utilizes a single forming wire for receiving the solution prior to passage over a suction breast roll which receives the solution then centrifuges it outwardly in formation of foamed liquid.
摘要翻译： 用于从发泡液体中的纤维分散体制造非织造纤维网如纸的设备和方法。 在一个优选的实施方案中，表面活性剂在水中的溶液最初在从成型辊通过由成形辊限定的曲线路径之前从流浆箱排出到双成形丝的辊隙中。 反复引起水表面活性剂溶液通过双成型丝线的外部，直到产生并存储在筒仓内，包含约20至约200个气泡形式的约65％空气的泡沫液体 直径微米。 泡沫液体从筒仓引导到混合罐中，其中加入含有20％至55％固体的纤维的浆料并混合。 将混合物泵送到流浆箱并进入成形丝的辊隙中。 外线保持纤维，同时通过并再次发泡液体以返回料仓和混合罐以加入纤维并返回流浆箱。 纤维网的形成继续进行。 在替代实施例中，曲线路径由可渗透流体的弓形表面限定，使得待发泡的溶液可以穿过内部和外部线。 另一个替代实施例使用单个成形线在通过吸收乳房辊之前接收溶液，接收溶液然后将其离心离心以形成发泡液体。
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公开(公告)号：US6059928A
公开(公告)日：2000-05-09
申请号：US530489
申请日：1995-09-18
摘要： A paper product and a method of making a paper product with a glabrous surface and adapted for use either dry or for use in a manually pre-moistened condition. The paper product having temporary wet strength exhibiting an initial normalized CD wet tensile strength of at least about 75 g/3 inch strip, preferably 105 g/3 inch strip as measured by the Finch Cup Test 5 seconds after immersion and a subsequent CD wet strength of less than 1/2 as measured 10 minutes after immersion. A temporary wet strength agent comprising uncharged chemical moieties such as aldehydes, and aldehydes containing polymers, polyols and cyclic ureas or mixtures thereof in the range of from about 2 pounds per ton to about 30 pounds per ton is added to the web. Optionally starch and a cationic nitrogenous softener/debonder is added. The starch and softener/debonder are added to assist in tailor making the desired paper product having temporary wet strength. The dry CD tensile strength of the paper product is from at least about 399 g/3 inches up to about 801 g/3 inches, and the tensile modulus is from about 10 to about 32 g/% strain while the GM MMD friction is from about 0.26 to about 0.10. When rubbed against a skin-like surface in a moistened condition, the paper product remains substantially free of pilling.
摘要翻译： 纸制品和制造具有无毛表面的纸制品的方法，适于干燥或用于手工预润湿状态。 具有临时湿强度的纸制品表现出至少约75g / 3英寸的条带，优选105g / 3英寸的条带的初始归一化CD湿拉伸强度，浸渍后5秒通过Finch Cup Test测量，随后的CD湿强度 小于+ E，fra 1/2 + EE，浸渍后10分钟测量。 将包含不带电荷的化学部分例如醛和含醛聚合物，多元醇和环脲或其混合物的临时湿强剂在约2磅/吨至约30磅/吨的范围内加入到该网中。 任选地加入淀粉和阳离子含氮软化剂/脱粘剂。 添加淀粉和软化剂/脱粘剂以帮助定制制备具有临时湿强度的所需纸制品。 纸制品的干CD拉伸强度为至少约399g / 3英寸至约801g / 3英寸，拉伸模量为约10至约32g /％应变，而GM MMD摩擦来自 约0.26至约0.10。 当在潮湿状态下与皮肤状的表面摩擦时，造纸产品基本上不起球。
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公开(公告)号：US4443297A
公开(公告)日：1984-04-17
申请号：US305738
申请日：1981-09-25
申请人： James O. Cheshire , Douglas L. Lindgren , Robert J. Marinack , Bruce W. Janda , Robert S. Thut , John T. Larkey , Ray E. Jostad
发明人： James O. Cheshire , Douglas L. Lindgren , Robert J. Marinack , Bruce W. Janda , Robert S. Thut , John T. Larkey , Ray E. Jostad
CPC分类号： D21F9/003 , D21F11/002
摘要： Apparatus and method for the manufacture of a non-woven fibrous web, such as paper, from a dispersion of fibers in a foamed liquid. In a preferred embodiment, a solution of surfactant in water is initially discharged from a headbox into the nip of a twin forming wire prior to its passage over a curvilinear path defined by a forming roll. The water-surfactant solution is caused repeatedly to pass through the outer one of the twin forming wires until there is created, and stored in a silo, a foamed liquid containing about 65% air in the form of bubbles of from about 20 to about 200 microns in diameter. The foamed liquid is directed from the silo into a mix tank wherein a slurry containing fibers at 20% to 55% solids is added and mixed. The mixture is pumped to the headbox and into the nip of the forming wires. The outer wire retains the fibers while passing and again foaming the liquid for return to the silo and the mix tank for addition of fibers and return to the headbox. The process is continued in formation of a fibrous web.In an alternative embodiment, the curvilinear path is defined by an arcuate surface that is fluid pervious so that the solution to be foamed may pass through both the inner and outer wires.A further alternative embodiment utilizes a single forming wire for receiving the solution prior to passage over a suction breast roll which receives the solution then centrifuges it outwardly in formation of foamed liquid.
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公开(公告)号：US4543156A
公开(公告)日：1985-09-24
申请号：US574287
申请日：1984-01-26
申请人： James O. Cheshire , Douglas L. Lindgren , Robert J. Marinack , Bruce W. Janda , Robert S. Thut , John T. Larkey , Ray E. Jostad
发明人： James O. Cheshire , Douglas L. Lindgren , Robert J. Marinack , Bruce W. Janda , Robert S. Thut , John T. Larkey , Ray E. Jostad
CPC分类号： D21F9/003 , D21F11/002
摘要： Apparatus and method for the manufacture of a non-woven fibrous web such as paper from a dispersion of fibers in a foamed liquid in which fiber furnished in a foamed liquid comprising a solution of surfactant in water is discharged from a headbox into the nip of a twin forming wire prior to its passage over a forming roll. The water-surfactant solution is drained from the web and recycled as a foamed liquid containing about 65% air in the form of bubbles of from about 20 to about 200 microns in diameter. The foamed liquid is directed into a mix tank wherein a slurry containing fiber at 20% to 55% solids is added and mixed. The mixture is pumped to the headbox and into the nip of the forming wires.
摘要翻译： 用于从发泡液体中的纤维分散体制造非织造纤维网如纸的装置和方法，其中在包含水中的表面活性剂溶液的泡沫液体中提供的纤维从流浆箱排出到 双成形丝在其通过成形辊之前。 将水表面活性剂溶液从纸幅中排出并作为发泡液体再循环，该泡沫液体含有直径为约20至约200微米气泡形式的约65％的空气。 将发泡的液体引入混合槽中，其中加入含有20％至55％固体的纤维的浆料并混合。 将混合物泵送到流浆箱并进入成形丝的辊隙中。
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公开(公告)号：US07300552B2
公开(公告)日：2007-11-27
申请号：US10376319
申请日：2003-03-03
CPC分类号： D21F3/0218 , D21F3/0227 , D21F3/0281 , D21F3/029 , D21F11/14 , D21F11/145 , D21H25/14
摘要： The present invention is a method for maximizing water removal from an absorbent web in a press nip. The present invention uses a pressing unit having a blanket with a void volume and with a pressure profile that maximizes water removal in the press section or on the Yankee dryer of a paper machine. The pressure profile of the pressing unit according to the present invention has a very steep pressure drop at and/or following the exit of a pressure distribution curve in order to maximize water removal by minimizing rewet of the web. The improved pressure profile according to the present invention results in increased water removal and/or improved line speed. The void volume further increases water removal and/or improves line speed.
摘要翻译： 本发明是一种在压榨压区中从吸收性纤维网中最大限度地除水的方法。 本发明使用具有空隙体积的毯子的挤压单元，并且具有最大限度地提高造纸机的压榨部分或扬克烘缸中的除水量的压力分布。 根据本发明的按压单元的压力分布在压力分布曲线的出口处和/或之后具有非常陡峭的压降，以便通过最小化纤维网的再润湿来最大限度地减少水分。 根据本发明的改进的压力分布导致增加的除水和/或改善的线速度。 空隙体积进一步增加除水量和/或提高线速度。
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9.发明授权Wet crepe throughdry process for making absorbent sheet and novel fibrous product 有权用于制造吸收性片材和新型纤维制品的湿绉纱干燥工艺公开(公告)号：US06752907B2
公开(公告)日：2004-06-22
申请号：US10042513
申请日：2002-01-09
申请人： 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
发明人： 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
IPC分类号： D21F518
CPC分类号： D21F11/14 , D21F3/0218 , D21F5/181 , D21F5/182 , D21F11/145 , D21G3/04 , D21G9/0063 , D21H25/005 , Y10T428/24455
摘要： 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.
摘要翻译： 从纤维配料制造片材的改进方法包括：将配料沉积在多孔载体上; 紧密地脱水配料以形成新生网; 在加热的圆筒上干燥网; 从其起皱并通过将幅材干燥成成品。 控制幅材的微观结构以促进干燥。 当通过薄片的气流的特征在于小于约1的雷诺数时，该产品具有4至10的特征通过干燥系数。本发明的新产品的特征在于湿回弹比，水力直径和内部粘合强度 参数。
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公开(公告)号：US06540879B2
公开(公告)日：2003-04-01
申请号：US10099998
申请日：2002-03-19
IPC分类号： B31F112
CPC分类号： B31F1/126 , B31F1/145 , D21F11/14 , D21F11/145 , D21G3/005 , D21H25/005 , D21H27/40
摘要： A creping blade for creping a cellulosic web from a rotatable cylinder in a creping process includes first and second side faces. The first side face is at least substantially opposite to the second side file. The blade also includes an upper surface adjacent to the first and second side faces. A plurality of notches is provided along the upper surface. Each of the notches has a bottom portion and an open end defined by at least a portion of the upper surface. The notches are configured to increase the caliper of the cellulosic web when the creping blade crepes the cellulosic web from an outer surface of the rotatable cylinder. Creped paper and improved methods of manufacturing paper are also provided.
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