141 |
THREE-DIMENSIONAL PAPERMAKING BELT |
US16094629 |
2017-07-25 |
US20190106841A1 |
2019-04-11 |
Mark Alan Burazin; Geoffrey Fenn Carlow; Lynda Ellen Collins |
The present invention relates to papermaking belts useful in the manufacture of paper products, such as tissue paper. Particularly this invention relates to a papermaking belt used in a through-air drying process for making tissue products, and more particularly to a belt having a particular pattern thereon which imparts properties to tissue products manufactured therewith. In some embodiments, the belt can be seamless. The belt can include a first web contacting area defining a first plane and a second web contacting area defining a second plane. The second plane can be above the first plane. The first web contacting area and the second web contacting area comprise a plurality of channels that extend from the web contacting side to the machine contacting side of the seamless papermaking belt. |
142 |
CNF CELLULAR SOLID MATERIAL WITH ANIONIC SURFACTANTS |
US15522980 |
2015-10-29 |
US20170313838A1 |
2017-11-02 |
Erik Johansson; Nicholas Tchang Cervin; Lars-Erik Wagberg |
The present invention relates to cellular solid materials comprising cellulose nanofibers (CNF) and an anionic surfactant, a method for preparation of such materials, as well as their use. |
143 |
SEALING STRIP SYSTEMS FOR SUCTION ROLLS |
US15511012 |
2015-09-14 |
US20170254019A1 |
2017-09-07 |
Rudiger Keinberger; Peter Eckerstorfer; Markus Ecker; Anton Luger |
The invention relates to sealing systems and methods for the operation of sealing systems of suction rolls, comprising inside at least one suction box (4) which is sealed laterally by one sealing strip system (1, 2) respectively from the roll shell (3) and each sealing strip system (1, 2) comprises one sealing strip (1.1, 2.1). |
144 |
Count-based monitoring machine wires and felts |
US14735892 |
2015-06-10 |
US09696226B2 |
2017-07-04 |
Kerry D. Figiel |
Collecting data includes generating a sensor signal from each of a plurality of sensors located on a sensing roll, wherein each signal is generated when each sensor enters a region of a nip between the sensing roll and mating roll during each rotation of the sensing roll; wherein a web of material travels through the nip and a continuous band contacts a region of the web of material upstream from or at the nip. A periodically occurring starting reference is generated associated with each rotation of the continuous band and the signal generated by each sensor is received so that the one of the plurality of sensors which generated this signal is determined and one of a plurality of tracking segments associated with the continuous band is identified. The signal is stored to associate the respective sensor signal with the identified one tracking segment. |
145 |
METHODS AND APPARATUS FOR FORMING FLUFF PULP SHEETS |
US15367520 |
2016-12-02 |
US20170081802A1 |
2017-03-23 |
JYRKI T. JAAKKOLA; JAMES E. SEALEY |
An improved processes for making fluff pulp sheets mechanically eliminates many of the unwanted fiber-to-fiber bonding (fiber bundles) which may be contained in the sheet to produce consistent and uniform quality fluff pulp. Pulp slurry is deposited on a moving bottom forming wire to form a stock web. Pulp slurry is brought into contact with a moving top forming wire. The stock web is subjected to up and down dewatering creating separately formed layers to reduce fiber-to-fiber bonding. The stock web can be subjected to strong pulsating shear forces as it is being advanced along the bottom forming wire to break a majority of fiber bundles contained in the web. The pulp slurry can be deposited on the bottom forming wire utilizing a headbox with dilution control to selectively adjust the concentration of the pulp slurry. A shoe press can be used to dewater the web after it is subjected to the pulsating shear forces. The web can be dried utilizing conventional drying equipment, such as cylindrical driers. |
146 |
Methods and apparatus for forming fluff pulp sheets |
US14504487 |
2014-10-02 |
US09347182B2 |
2016-05-24 |
Jyrki T. Jaakkola; James E. Sealey |
An improved processes for making fluff pulp sheets mechanically eliminates many of the unwanted fiber-to-fiber bonding (fiber bundles) which may be contained in the sheet to produce consistent and uniform quality fluff pulp. Pulp slurry is deposited on a moving bottom forming wire to form a stock web. Pulp slurry is brought into contact with a moving top forming wire. The stock web is subjected to up and down dewatering creating separately formed layers to reduce fiber-to-fiber bonding. The stock web can be subjected to strong pulsating shear forces as it is being advanced along the bottom forming wire to break a majority of fiber bundles contained in the web. The pulp slurry can be deposited on the bottom forming wire utilizing a headbox with dilution control to selectively adjust the concentration of the pulp slurry. A shoe press can be used to dewater the web after it is subjected to the pulsating shear forces. The web can be dried utilizing conventional drying equipment, such as cylindrical driers. |
147 |
Press jacket for press roller |
US14650361 |
2013-11-28 |
US20150308044A1 |
2015-10-29 |
DELPHINE DELMAS; UWE MATUSCHCZYK; HERMANN REICHERT; MICHAEL WOKUREK |
A press jacket for a press roller, in particular for a press roller of a shoe press for dewatering a fibrous material web, in particular a paper, cardboard, tissue or pulp web, or a transport band, in particular for a machine for producing or treating a fibrous material web, in particular a paper, cardboard or tissue machine, includes at least one layer containing polyurethane which contains a polyurethane matrix with a mixture of at least two prepolymers. Each prepolymer is a reaction product of two different polyols with a polyisocyanate. |
148 |
Methods and Apparatus for Forming Fluff Pulp Sheets |
US14504487 |
2014-10-02 |
US20150013926A1 |
2015-01-15 |
JYRKI T. JAAKKOLA; JAMES E. SEALEY |
An improved processes for making fluff pulp sheets mechanically eliminates many of the unwanted fiber-to-fiber bonding (fiber bundles) which may be contained in the sheet to produce consistent and uniform quality fluff pulp. Pulp slurry is deposited on a moving bottom forming wire to form a stock web. Pulp slurry is brought into contact with a moving top forming wire. The stock web is subjected to up and down dewatering creating separately formed layers to reduce fiber-to-fiber bonding. The stock web can be subjected to strong pulsating shear forces as it is being advanced along the bottom forming wire to break a majority of fiber bundles contained in the web. The pulp slurry can be deposited on the bottom forming wire utilizing a headbox with dilution control to selectively adjust the concentration of the pulp slurry. A shoe press can be used to dewater the web after it is subjected to the pulsating shear forces. The web can be dried utilizing conventional drying equipment, such as cylindrical driers. |
149 |
DEVICE AND METHOD FOR PRODUCING A MATERIAL WEB |
US14056619 |
2013-10-17 |
US20140041822A1 |
2014-02-13 |
Joao V. Boechat; Thomas Scherb; Luiz C. Silva; Rogerio Berardi; Daniela Reis |
A method to dewater a fibrous web includes directing the fibrous web through a first press zone defined between a revolving permeable belt and a revolving permeable support belt and having a first press zone length. The fibrous web is arranged lying between the revolving permeable belt and the revolving permeable support belt. A fluid is caused to flow through the permeable belt, the fibrous web and the support belt at least over a section of the first press zone length. The fibrous web is dewatered in a second press zone following the first press zone and defined between the revolving permeable belt and the revolving permeable support belt, the second press zone having a second press zone length. The fibrous web is led through the second press zone between the permeable belt and the support belt, the permeable belt and the support belt each having a different compressibility. |
150 |
Papermaking Additives for Roll Release Improvement |
US13214472 |
2011-08-22 |
US20120045587A1 |
2012-02-23 |
Davit E. Sharoyan; Tien-Feng Ling; Scott T. Schnelle |
Compositions and methods for reduction in adhesion between wet paper web and roll surfaces in papermaking process are disclosed. The method is particularly useful for improvements in press section roll release. |
151 |
Through air dried papermaking machine employing an impermeable transfer belt |
US12434878 |
2009-05-04 |
US08110072B2 |
2012-02-07 |
Robert Stanley Ampulski |
A papermaking machine for making uncreped through air dried paper having a forming section, a press section, and a drying section is disclosed. The paper web is pressed between two press members while enclosed between a press felt and a transfer belt having non-uniformly distributed microscopic depressions in its surface. The web follows the transfer belt from the press to a transfer point at which the web is transferred via a suction transfer device onto a structuring fabric. The web is then dried with a through air dryer. |
152 |
System and method to control press section dewatering on paper and pulp drying machines using chemical dewatering agents |
US12059425 |
2008-03-31 |
US07964064B2 |
2011-06-21 |
David Ira Weinstein; Michael Robert St. John; Rodney H. Banks; James L. Thomas |
The present invention provides an automatic control system, method and paper manufacturing machine using such control system for automatically controlling the amount of press section dewatering via the metered application of chemical dewatering agents applied to a paper web in a paper manufacturing process. The control system includes a feedback controller for controlling the amount of chemical dewatering agent applied to a paper web, and a monitoring device for obtaining a measurement of the moisture of the paper web exiting the press section. |
153 |
Method For the Production of a Paper Web, Especially Rotogravure Paper |
US11914718 |
2006-06-20 |
US20080236776A1 |
2008-10-02 |
Ulrich Begemann |
The invention relates to a method for producing a paper web or another fibrous web. According to said method, the fibrous web is impinged upon by pressure in the penultimate press nip and then in a last press nip of a press section. One face of the fibrous web is in contact with a smooth surface when penetrating the penultimate press nip while the other face of the fibrous web is in contact with a smooth surface the when penetrating the last press nip. |
154 |
Dewatering fabrics |
US11330461 |
2006-01-11 |
US20060258246A1 |
2006-11-16 |
John Bomberger; Glen Simmonds; Karsten Keller; Benjamin Fuchs |
The present invention relates to fabrics that can be used in the manufacture of paper. The fabrics preferably have at least three regions of fabric with specified distributions of pore sizes. The fabrics disclosed herein are an effective alternative to conventional dewatering fabrics for removing water from the incipient paper, which can provide energy cost savings in subsequent elevated temperature drying steps. |
155 |
System and method to control press section dewatering on paper and pulp drying machines using chemical dewatering agents |
US11043700 |
2005-01-26 |
US20060162887A1 |
2006-07-27 |
David Weinstein; Michael St. John; Rodney Banks; James Thomas |
The present invention provides an automatic control system, method and paper manufacturing machine using such control system for automatically controlling the amount of press section dewatering via the metered application of chemical dewatering agents applied to a paper web in a paper manufacturing process. The control system includes a feedback controller for controlling the amount of chemical dewatering agent applied to a paper web, and a monitoring device for obtaining a measurement of the moisture of the paper web exiting the press section. |
156 |
Suspension arrangement for a roll |
US09962278 |
2001-09-24 |
US06764578B2 |
2004-07-20 |
Tord Gustavsson |
A vibration-minimizing suspension mechanism for a press roll is provided. The press roll and an opposing roll each having a rotational axis and cooperate to form a press nip adapted to impart a linear load on a fiber web passing therethrough. The linear load is oriented through the rotational axes of the press roll and the opposing roll. As such, the suspension mechanism comprises a suspension arm having opposed ends and a medially-disposed pivot, wherein the press roll is rotatably engaged at the rotational axis thereof with one of the opposed ends of the suspension arm. The suspension arm is further pivotably and adjustably mounted at the pivot so as to allow the pivot to be adjusted in substantially parallel relation to the linear load. The adjustability of the pivot thereby allowing a mounting line along the suspension arm, the mounting line being defined by the pivot and the rotational axis of the press roll, to be maintained in substantially perpendicular orientation to the linear load to thereby minimize vibration in the press roll. |
157 |
Water draining device |
US09758243 |
2001-01-12 |
US06716315B2 |
2004-04-06 |
Karl Steiner; Robert Wolf; Hans Prinzing |
Water draining device for a paper machine or the like, in particular for a felted press of such a paper machine, including a receiving tank extending at least essentially over the machine width. The receiving tank includes a first chamber that receives arriving water and is under ambient pressure, and a second chamber that is connected to the first chamber and is under vacuum, into which the water collecting in the first chamber is aspirated and from which the water is eventually drained. A water receiving device of improved efficiency is also provided by forming a water receiving device by at least one suction channel projecting into the wedge-shaped area between the upper press roll and the dewatering belt, and extending transverse to the pulp web, which suction channel is connected to a source of reduced pressure. |
158 |
Pressing arrangement |
US09800475 |
2001-03-08 |
US06666954B2 |
2003-12-23 |
Gerhard Kotitschke; Wolfgang Mayer; Roland Mayer |
Pressing arrangement having two press rolls forming at least one press nip for dewatering a web, and two dewatering belts arranged to be guided through the at least one press nip with the web. The dewatering belts positioned on opposite sides of the web to absorb water. A common guidance path, formed by the dewatering belts guiding the web, is located after the at least one press nip. A separating roll and a lower one of the dewatering belts is arranged to wrap the separating roll along with the web at an end of the common guidance path. An upper one of the dewatering belts is arranged to be guided away from the web in a separation path in a region of the separating roll. Lower dewatering belt and web wrap the separating roll subsequent to the separation path at a wrapping angle of at least about 30°. |
159 |
Press arrangement and press roll for such a press arrangement |
US09528155 |
2000-03-17 |
US06589393B1 |
2003-07-08 |
Andreas Meschenmoser |
A press arrangement for treating a fibrous web, especially a paper or board web, comprises at least two press rolls to form at least one press nip. At least one press roll is mounted on at least one roll end by means of a floating bearing, whose bearing rings, arranged inside the bearing housing, can be displaced relative to each other in the direction of the roll axis. |
160 |
Paper machine using metal screen for press section and dryer cylinders |
US09976075 |
2001-10-15 |
US06497792B2 |
2002-12-24 |
Tri Chau Huu; Markus Oechsle; Robert Wolf; Wolfgang Mayer; Karlheinz Straub |
Described is a machine for manufacturing a continuous web, in particular a paper or cardboard web, the machine having a number of rolls that may include press rolls, drying cylinders, suction rolls, or the like. At least one transport belt is guided with the web around the rolls and is characterized by the fact that a metallic screen is guided between the web and the respective roll surface. The metallic screen may be formed of metal, formed as a metallized drying screen, or formed from metal and synthetic threads. |