EP1099025B1 - Verfahren und vorrichtung zur behandlung der oberfläche eines bandes - Google Patents

Verfahren und vorrichtung zur behandlung der oberfläche eines bandes Download PDF

Info

Publication number
EP1099025B1
EP1099025B1 EP99931318A EP99931318A EP1099025B1 EP 1099025 B1 EP1099025 B1 EP 1099025B1 EP 99931318 A EP99931318 A EP 99931318A EP 99931318 A EP99931318 A EP 99931318A EP 1099025 B1 EP1099025 B1 EP 1099025B1
Authority
EP
European Patent Office
Prior art keywords
web
treatment
wetting
energy
paper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99931318A
Other languages
English (en)
French (fr)
Other versions
EP1099025A1 (de
Inventor
Antti Heikkinen
Mikko Tani
Pekka Linnonmaa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Metso Paper Oy
Original Assignee
Metso Paper Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Metso Paper Oy filed Critical Metso Paper Oy
Publication of EP1099025A1 publication Critical patent/EP1099025A1/de
Application granted granted Critical
Publication of EP1099025B1 publication Critical patent/EP1099025B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/30—Pretreatment of the paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/24—Addition to the formed paper during paper manufacture
    • D21H23/26—Addition to the formed paper during paper manufacture by selecting point of addition or moisture content of the paper

Definitions

  • the invention relates to a method for treating the surface of a web, in which method liquid is added on the surface of a paper or paperboard web, possibly with other constituents.
  • the invention also relates to an apparatus for implementing the aforementioned method.
  • the invention relates to the manufacture and finishing of paper, the end product of which is a finished paper.
  • the invention relates to the manufacture of printing papers, intented to be printed at a separate stage after their surface has been finished and the web has been reeled.
  • the surface structure of the web is made suitable by means of a mechanical treatment, calendering.
  • calendering There are several calendering methods, but it is common to all of them that the web is passed through one or several nips which are formed between two surfaces, typically between rotating roll surfaces.
  • the purpose of the calendering is to improve the paper quality by pressing the paper into a fixed final thickness, and especially by smoothing its surface.
  • the mouldability of the fibres contained in the paper or paperboard, the "plasticization" of the web in connection with the calendering can be improved by increasing the temperature and/or moisture.
  • the problem is that it is difficult to increase the water content to attain the desired moisture gradient in the thickness direction of the web.
  • water can condensate poorly on the surface of the web, especially when its surface temperature is high.
  • the most common problem is the hydrophobicity of the web, i.e. when the web is wetted by means of a known method, the adhesion of the liquid to the surface is poor.
  • To attain a sufficient wetting on the surface of the web it is thus necessary to use such a dosage which results in an undesirable increase in the moisture also in the inner parts of the web.
  • the aim is, however, to attain a steep moisture gradient between the surface and the inner part of the web.
  • Hydrophobicity may result from the raw materials used in the pulp, but there is also an apparent hydrophobicity which results from the air film carried by the rapidly moving web, and the air brought along by the wetting liquid, which is perceivable especially in spray wetting.
  • a method and an apparatus for treating the surface of an already formed and at least partly dried paper or paper board web comprising the features summarized in the preambles of claims 1 and 10, respectively, are known from document US-A-4 653 395 .
  • Document DE 3 115 958 A1 discloses a method and an apparatus, in which a paper web is subjected to an energy treatment by means of a corona treatment device before a liquid id added to the surface of the web by means of a wetting device.
  • the corona treatment device issues energy to the web, increases the hydrophilicity, and increases the absorbency of the web. After the wetting device, the web can be reeled up.
  • Document DE 4 324 337 A1 discloses a method and an apparatus for rewetting a printed paper web.
  • the printed paper web is subjected to an energy treatment by means of a corona treatment device before a liquid is added to the surface of the web by means of a wetting device.
  • the corona treatment By means of the corona treatment, the hydrophilicity and the absorbency of the web is increased.
  • the rewetted printed web travels to a folding and cutting device.
  • Document EP 464775 A2 discloses a method and an apparatus for subjecting a web to an energy treatment by means of a corona treatment device before a coating liquid is added to the web by means of a coating device.
  • the corona treatment is effected for electrically charging the web, and the web is electrically charged for improving the adhesion between the web and the coating liquid.
  • Papers and paperboards are materials with heterogeneous surface energy. It has been discovered that the increase in the proportion of mechanical pulp and/or the act of adding a hydrophobic chemical increases the amount of fluctuation in the surface energy.
  • the surface energy of the paper affects the absorbtion of liquids, the wettability of the surface and the adhesion properties of the surface. The more uniform the structure in view of its surface energy is, the more uniform are the effects of said processes. By means of the method of the invention it is possible to reduce and equalize the surface energy.
  • the surface energy unequivocally determines the amount of water attached on the surface of the paper.
  • the fluctuations in the surface energy appear in an irregular, small-scale fluctuation in the "adhesion" and moisture profile. This can cause an uneven calendering result, which causes e.g. mottling in printing.
  • An uneven wetting of the surface results in that the sections which have a lower surface energy become wet and absorb water faster than sections with a higher surface energy. In practice, this can, in addition to the aforementioned reasons, result from irregularities in the moisture profile of the paper before wetting.
  • the energy effecting the aforementioned chemical changes can be produced by means of a corona treatment, a flame treatment, an ozone treatment or a combination of these.
  • Fig. 1 illustrates the treatment stages of a paper or paperboard web W according to the invention.
  • the web in question travels in a paper or paperboard machine or in a finishing machine for paper or paperboard, and its surface is subjected to finishing whereafter it is reeled to form a reel.
  • Hydrophobicity is reduced at a stage A by means of a treatment effected on the surface of the web on the same side from which liquid is added at a stage B.
  • It is also possible to reduce the hydrophobicity additionally at a stage C by means of a treatment effected from the opposite side of the web W on the surface of the web on which liquid is added.
  • This treatment stage C can take place simultaneously with the stage B or slightly thereafter.
  • the web W is passed to a finishing stage D of the surface which can follow immediately after the stages A and B or after the stages B and C.
  • the need to reduce the hydrophobicity arises after a press at that stage when a completely formed web is at least partly dry, and it is absorbent for re-wetting.
  • the dry matter content is approximately 60 to 65%.
  • the liquid to be added denotes liquid as such or liquid in a formulation in which other substances are mixed therein, for example substances used in surface sizing and pigmenting, wherein the liquid functions as a carrier for these substances.
  • the liquid is issued in the form of a surface sizing solution, a surface sizing paste, or a coating colour.
  • the liquid is any liquid whose adhesion to the web can be improved by reducing the hydrophobicity on the surface of the web, especially water.
  • the above-described stage B can thus be wetting, surface sizing or pigmenting.
  • the treatment is effected on the web W which moves at a high speed past the treatment sections.
  • the finishing effected on the web at the stage D can be immediately succeeding calendering, if the stage B is wetting, or it can be drying and calendering, if the preceding stage B is surface sizing or pigmenting.
  • Fig. 2 schematically shows the paper or paperboard web issued from a drying section in a paper or paperboard machine, which web W is passed to a calender K.
  • a device 1 for applying energy by means of which device 1 energy is issued into the layer of air bordered by the surface of the web travelling past the device, the energy also affecting the surface of the web in such a way that more hydrophilic groups are produced.
  • the device is succeeded by a wetting apparatus 2 by means of which the surface whose hydrophilicity was increased at the previous stage, is wetted.
  • the web W is passed to the calender K, which in the drawing is illustrated by two rolls 3 and 4 between which there is a calender nip N through which the web is passed.
  • the nip in question can be the only nip in the calender, or there may be several successive calender nips in the travel direction of the web, wherein the drawing shows the first one of them.
  • the calender is not restricted to any type, and it can be a machine calender, a soft calender, a long-nip calender or a multiple-roll calender.
  • the device 1 applying energy on the web can be a corona treatment device, which is provided with an electrode or a series of electrodes, located at a distance of a small air gap from the surface of the web W, and on the opposite side of the web with a counter-electrode, e.g. a roll.
  • the corona treatment is based on the fact that the air gap between the electrode and the paper or paperboard web has a lower dielectric discharge voltage than the web itself. When a high frequency high voltage is produced between the electrode and the counter electrode, the air between the electrode and the web is ionized, and generates a gaseous conductor which can be seen as a blue corona.
  • the corona burst generated with the electrode produces the following oxidants: ozone, atomic oxygen, free oxygen radicals and high-speed electrons, whose energy in the corona burst often reaches the amount of several keV, e.g. the value of approximately 10 keV.
  • the energy is sufficient for breaking the bonds present on the surfaces of the fibres and between the fibres.
  • very reactive free radicals are produced on the surface of the web, which free radicals react with the oxidants produced in the corona treatment.
  • the surface of the web becomes oxidized, and new polar groups are produced in the polymer material of the fibres on the surface, the polar groups being primarily carbonyl, amide, hydroxyl and nitro groups. These groups provide new adsorption sites for water, thus increasing the hydrophilicity of the surface.
  • the corona treatment also has an electrical effect which improves adhesion, because the corona burst charges the surface of the web.
  • the device 1 directing energy can be a flame treatment device.
  • the act of subjecting the surface of a paper or paperboard web W to an oxidizing flame with high thermal energy produces reactions similar to those described above on the surface of the paper or paperboard web, as well as an increase in the hydrophilicity via these oxidizing reactions.
  • a further advantage of the flame treatment is that it improves the coatability of the web by removing so-called "standing" fibres from the surface of the web.
  • ozone In the corona burst ozone is also produced, which has an effect on the surface of the web.
  • the surface of the web can also be subjected to an oxidizing effect by means of a special ozone treatment, ozonization, in which a suitable amount of ozone is directed as such to the web from an ozone generator.
  • the device 1 can thus be an ozonizer, by means of which energy is issued on the surface of the web in the form of chemical energy contained in gas. In this context it is also possible to use the term energy treatment device.
  • the aforementioned treatment is effected on the surface of the web on which the fibres are exposed. It is also possible, that the web W has already been surface sized before it is passed to the aforementioned energy treatment and wetting. Thus, the treatment has the same effects as on the bare surface of the web.
  • modified starch other natural polymers or their derivatives or in corresponding substances, such as synthetic polymers; used in the surface sizing, polar groups are produced analogously with the phenomena occurring in the cellulose, hemicellulose or lignin.
  • the alternatives which entail a combination of two different types of treatments on the same side can also contain a treatment of a third type on the same side.
  • the wetting is effected on that side of the web W which has been subjected to a treatment of adding hydrophilic groups in any of the aforementioned ways. If the treatment has been conducted on both sides of the web W, the wetting by means of the wetting device 2 is effected on both sides of the web.
  • the wetting device can function on any of the following principles:
  • corona, flame and ozonization treatments are the advantageous alternatives for treating the surface of the web, because they are efficient enough for producing changes in the structure of the surface of the web.
  • the pretreatment according to the invention is helpful especially in spray wetting underneath the web, in which the surface energy is the determining factor in the adhesion of the liquid on the paper.
  • the treatment is conducted at least underneath the web for a bottom-side spray wetting.
  • the treatment also makes it possible to increase the amount of water that can be added e.g. by means of steaming in the web.
  • the web In the wetting the web obtains the desired surface moisture, and it is passed in this moisture into the calender nip N of the calender K.
  • the wetting can also be replaced by adding liquid as a carrier material contained in the composition to be applied on the surface of the paper web, such as the surface sizing of the paper web or the pigmenting of the surface. Thanks to the pretreatment, the aqueous compositions added at these working stages adhere better on the web.
  • the pretreatment is especially well suited for coating methods in which the composition is brought in contact with the web at a low pressure: spray coating, jet coating as well as spreading roll application.
  • Fig. 3 shows water sorption as a function of the contact time for fully sized fine paper with different powers in the corona treatment, and for unsized and soft sized fine paper.
  • the size used in the surface sizing is AKD glue.
  • the fully sized sample whose comparative test effected without a treatment is also shown, was subjected to the corona treatment using three different powers.
  • the reference samples were an unsized fine paper and a fine paper soft surface sized with AKD, which were not subjected to the treatment.
  • Fig. 3 shows that the corona treatment clearly increases the water sorption of the surface sized paper, and the sorption is proportional to the power used.
  • the calender K When a web which has been surface wetted in any of the above-described manners is calendered, it is possible to use many known solutions as the calender K.
  • the calender nip N shown in the drawings can be a hard nip, a soft nip, or a long nip which has been produced with a belt or a shoe.
  • the aforementioned nip variations can be implemented by means of two hard rolls, two soft rolls, a soft and a hard roll, a roll and a belt, and a roll and a shoe.
  • the calender can also be provided with several successive nips, of which two or more successive nips can be of the same type or of a different type.
  • the calender is a multiple-roll calender in which successive nips are formed between the rolls in a stack of rolls.
  • the calendering advantageously entails the heating of the surface of the web by means of a heated, smooth calender surface in the calender nip N. It is also possible that heating and smoothing is effected in the calender only on the upper side of the web, only on the lower side of the web or on both sides of the web. Naturally, the aforementioned treatment is effected at least on that side whose hydrophilicity has been initially increased in a way described above, and which has been wetted thereafter.
  • the wetting can be profiled by adjusting the pretreatment reducing the hydrophobicity in the cross machine direction.
  • the effect of the device producing the corona treatment and/or flame treatment and/or ozonization treatment is thus adjustable in different points in the cross machine direction, or there may be separate devices adjustable independently of each other in the cross machine direction.
  • certain portions of the web can be rendered sensitive to absorb more water than others.
  • the wetting need not necessarily be profiled separately, i.e. the wetting device can be "evenly" spreading.
  • the aforementioned profiling possibilities naturally exist in the wetting effected before calendering.
  • the profiling is advantageous especially in spray wetting, especially in sparay wetting underneath the web, and in the wetting effected by means of steaming.
  • the method and the device can be used in connection with an on-line calender functioning as a direct extension to the process of making paper or paperboard, or in a separate working stage when temporarily stored paper or paperboard is calendered, the surface of such paper or paperboard being already initially dry for re-wetting.

Landscapes

  • Paper (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coating Apparatus (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Claims (18)

  1. Verfahren zum Behandeln der Oberfläche einer bereits ausgebildeten und zumindest teilweise getrockneten Papier- oder Kartonbahn (W), mit den folgenden Schritten:
    Hinzufügen einer Flüssigkeit auf die zumindest teilweise getrocknete Oberfläche der Bahn (W) zum Befeuchten der Bahn (W) und
    anschließendes Kalandrieren der Bahn (W),
    dadurch gekennzeichnet, dass
    vor dem Hinzufügen der Flüssigkeit zu der Oberfläche der Bahn (W) das Absorptionsvermögen der zumindest teilweise getrockneten Oberfläche der Bahn (W) erhöht wird, indem diese einer Energiebehandlung ausgesetzt wird, bei der neue Polargruppen auf dem Material erzeugt werden, das die Oberfläche der Bahn (W) bildet.
  2. Verfahren gemäß Anspruch 1,
    dadurch gekennzeichnet, dass
    die Energiebehandlung eine Coronabehandlung ist.
  3. Verfahren gemäß Anspruch 1,
    dadurch gekennzeichnet, dass
    die Energiebehandlung eine Flammenbehandlung ist.
  4. Verfahren gemäß Anspruch 1,
    dadurch gekennzeichnet, dass
    die Energiebehandlung eine Ozonisierung ist.
  5. Verfahren gemäß Anspruch 1,
    dadurch gekennzeichnet, dass
    die Oberfläche der Bahn (W) zumindest zweier unterschiedlicher Arten an Energiebehandlung ausgesetzt wird, die aus der Gruppe gewählt werden, die aus der Coronabehandlung, der Flammenbehandlung und der Ozonisierung besteht.
  6. Verfahren gemäß einem der Ansprüche 1 bis 5,
    dadurch gekennzeichnet, dass
    das Absorptionsvermögen der Oberfläche in einer profilierten Weise in der Querrichtung der Bahn (W) erhöht wird, indem der Effekt der Energiebehandlung oder der Energiebehandlungen profiliert wird.
  7. Verfahren gemäß einem der Ansprüche 1 bis 6,
    dadurch gekennzeichnet, dass
    die Flüssigkeit auf die Oberfläche der Bahn (W) zusammen mit anderen Bestandteilen hinzugefügt wird, die als eine Beschichtung der Bahn (W) gedacht sind.
  8. Verfahren gemäß Anspruch 7,
    dadurch gekennzeichnet, dass
    die Flüssigkeit zusammen mit anderen Bestandteilen auf die Oberfläche der Bahn (W) durch ein Sprühbeschichten, Strahlbeschichten oder eine Breitstreckwalzenanwendung hinzugefügt wird.
  9. Verfahren gemäß einem der Ansprüche 1 bis 8,
    dadurch gekennzeichnet, dass
    das Kalandrieren online als eine direkte Verlängerung eines Prozesses zum Herstellen von Papier oder Karton ausgeführt wird.
  10. Vorrichtung zum Behandeln der Oberfläche einer bereits ausgebildeten und zumindest teilweise getrockneten Papier- oder Kartonbahn (W), die entlang einer Laufbahn läuft, mit:
    einer Befeuchtungsvorrichtung (2) zum Hinzugeben von Flüssigkeit auf die Oberfläche der Bahn (W), wobei die Befeuchtungsvorrichtung (2) an der Laufbahn der Bahn (W) angeordnet ist, und
    einem Kalander (K) zum Kalandrieren der Bahn (W), wobei der Kalander (K) an der Laufbahn der Bahn (W) nach der Befeuchtungsvorrichtung (2) in der Laufrichtung der Bahn (W) angeordnet ist,
    gekennzeichnet durch
    eine Energiebehandlungsvorrichtung (1), die an der Laufbahn der Bahn (W) vor der Befeuchtungsvorrichtung (2) in der Laufrichtung der Bahn (W) angeordnet ist, wobei die Befeuchtungsvorrichtung (1) so eingerichtet ist, dass sie Energie zumindest zu der unmittelbaren Nähe der zumindest teilweise getrockneten Oberfläche der Bahn (W) ausgibt, um neue Polargruppen auf der Oberfläche der Bahn (W) zu erzeugen, und um das Absorptionsvermögen der Oberfläche der Bahn zu erhöhen.
  11. Vorrichtung gemäß Anspruch 10,
    dadurch gekennzeichnet, dass
    die Energiebehandlungsvorrichtung (1) eine Coronabehandlungsvorrichtung ist.
  12. Vorrichtung gemäß Anspruch 10,
    dadurch gekennzeichnet, dass
    die Energiebehandlungsvorrichtung (1) eine Flammenbehandlungsvorrichtung ist.
  13. Vorrichtung gemäß Anspruch 10,
    dadurch gekennzeichnet, dass
    die Energiebehandlungsvorrichtung (1) eine Ozonisierungsvorrichtung ist.
  14. Vorrichtung gemäß Anspruch 10,
    dadurch gekennzeichnet, dass
    die Energiebehandlungsvorrichtung (1) zumindest zwei verschiedene Arten an Vorrichtungen aufweist, die aus der Gruppe gewählt sind, die aus einer Coronabehandlungsvorrichtung, einer Flammenbehandlungsvorrichtung und einer Ozonisierungsbehandlungsvorrichtung besteht.
  15. Vorrichtung gemäß einem der Ansprüche 10 bis 14,
    dadurch gekennzeichnet, dass
    die Befeuchtungsvorrichtung (2) eine Sprühbefeuchtungsvorrichtung, eine Filmübertragungsbefeuchtungsvorrichtung, eine Befeuchtungsvorrichtung auf der Grundlage der Einstellung der relativen Luftfeuchtigkeit oder eine Bedampfungsvorrichtung ist.
  16. Vorrichtung gemäß einem der Ansprüche 1 bis 14,
    dadurch gekennzeichnet, dass
    die Befeuchtungsvorrichtung (2) eine Beschichtungsvorrichtung ist, die angeordnet ist, um die Flüssigkeit auf die Oberfläche der Bahn (W) zusammen mit anderen Bestandteilen hinzuzugeben, die als eine Beschichtung der Bahn (W) gedacht sind.
  17. Vorrichtung gemäß Anspruch 16,
    dadurch gekennzeichnet, dass
    die Beschichtungsvorrichtung eine Sprühbeschichtungsvorrichtung, eine Strahlbeschichtungsvorrichtung oder eine Breitstreckwalze ist.
  18. Vorrichtung gemäß einem der Ansprüche 10 bis 17,
    dadurch gekennzeichnet, dass
    der Kalander (K) ein Onlinekalander ist, der als eine direkte Verlängerung einer Papiermaschine oder Kartonmaschine fungiert.
EP99931318A 1998-06-22 1999-06-22 Verfahren und vorrichtung zur behandlung der oberfläche eines bandes Expired - Lifetime EP1099025B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI981429A FI113791B (fi) 1998-06-22 1998-06-22 Menetelmä ja laitteisto rainan pinnan käsittelemiseksi
FI981429 1998-06-22
PCT/FI1999/000546 WO1999067466A1 (en) 1998-06-22 1999-06-22 Method and apparatus for treating the surface of a web

Publications (2)

Publication Number Publication Date
EP1099025A1 EP1099025A1 (de) 2001-05-16
EP1099025B1 true EP1099025B1 (de) 2010-01-20

Family

ID=8552040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99931318A Expired - Lifetime EP1099025B1 (de) 1998-06-22 1999-06-22 Verfahren und vorrichtung zur behandlung der oberfläche eines bandes

Country Status (8)

Country Link
US (1) US20050098284A1 (de)
EP (1) EP1099025B1 (de)
AT (1) ATE455903T1 (de)
AU (1) AU4786999A (de)
CA (1) CA2335631C (de)
DE (1) DE69941955D1 (de)
FI (1) FI113791B (de)
WO (1) WO1999067466A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPQ544900A0 (en) * 2000-02-04 2000-02-24 Commonwealth Scientific And Industrial Research Organisation Treatment of cellulosic material
FI115732B (fi) 2003-06-05 2005-06-30 Metso Paper Inc Menetelmä ja laitteisto paperi- tai kartonkirainan pintaliimauksessa
DE10342313A1 (de) * 2003-09-12 2005-04-07 Voith Paper Patent Gmbh Auftragsvorrichtung
DE102004003921A1 (de) * 2004-01-27 2005-11-24 Voith Paper Patent Gmbh Verfahren und Anordnung zur Herstellung einer holzfrei gestrichenen, matten oder halbmatten Papierbahn
WO2005115063A1 (en) * 2004-05-20 2005-12-01 Universidade Do Minho Continuous and semi-continuous treatment of textile materials integrating corona discharge
JP4699519B2 (ja) * 2005-06-16 2011-06-15 シーメンス アクチエンゲゼルシヤフト 紙を製造するためのふるい装置及び不織繊維原料の処理方法
JP5269486B2 (ja) * 2008-05-30 2013-08-21 ユニ・チャーム株式会社 凹凸模様を有する嵩高紙及びその製造方法
JP5269485B2 (ja) * 2008-05-30 2013-08-21 ユニ・チャーム株式会社 凹凸模様を有する嵩高紙及びその製造方法
FI123582B (fi) * 2010-04-29 2013-07-31 Metso Paper Inc Menetelmä ja laitteisto kuiturainan käsittelemiseksi
US9481777B2 (en) 2012-03-30 2016-11-01 The Procter & Gamble Company Method of dewatering in a continuous high internal phase emulsion foam forming process
CN112030602B (zh) * 2020-09-08 2022-03-22 杭州众材科技股份有限公司 一种施胶纸张的脱酸方法
CN115075053A (zh) * 2022-07-07 2022-09-20 安庆盛华纸质包装有限公司 一种抗菌耐高温淋膜纸加工用电晕装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4653395A (en) * 1984-12-31 1987-03-31 Valmet Oy Method and apparatus in the calendering of a web

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1933963A (en) * 1931-12-18 1933-11-07 Champion Coated Paper Company Process for coating paper
US4455328A (en) * 1976-07-13 1984-06-19 Metal Box Limited Coating of articles
DE3115958C2 (de) 1981-04-22 1983-12-29 Hahne, Ernst August, 4123 Allschwill "Verfahren zum Anfeuchten eines flexiblen bahnförmigen und mit einer durch Trocknung verfestigten Beschichtung versehenen Trägermaterials
US4687549A (en) * 1986-01-08 1987-08-18 M/K Systems, Inc. Hydrofoil blade
EP0463213A1 (de) * 1990-06-27 1992-01-02 Jean Hiedemann GmbH & Co.KG Verfahren zum flächigen Behandeln von bewegten Papierbahnen und Vorrichtung zur Durchführung des Verfahrens
JPH0465088A (ja) 1990-07-03 1992-03-02 Fuji Photo Film Co Ltd ウエブ帯電用装置
US5102738A (en) * 1990-11-01 1992-04-07 Kimberly-Clark Corporation High hydrohead fibrous porous web with improved retentive absorption and acquision rate
DE4324337C2 (de) 1993-07-20 1998-08-13 Thomas E Fausel Wiederbefeuchtungseinrichtung für eine bedruckte Papierbahn
DE4431252B4 (de) * 1994-09-02 2004-01-29 V.I.B. Systems Gmbh Verfahren und Vorrichtung zum Bedrucken einer Materialbahn
US5766277A (en) * 1996-09-20 1998-06-16 Minnesota Mining And Manufacturing Company Coated abrasive article and method of making same
US5990377A (en) * 1997-03-21 1999-11-23 Kimberly-Clark Worldwide, Inc. Dual-zoned absorbent webs
JPH11200298A (ja) * 1997-10-24 1999-07-27 Voith Sulzer Papiertechnik Patent Gmbh 紙ウェブ又は板紙ウェブに液状又はペースト状塗工剤を供給する方法と装置
US6261679B1 (en) * 1998-05-22 2001-07-17 Kimberly-Clark Worldwide, Inc. Fibrous absorbent material and methods of making the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4653395A (en) * 1984-12-31 1987-03-31 Valmet Oy Method and apparatus in the calendering of a web

Also Published As

Publication number Publication date
ATE455903T1 (de) 2010-02-15
AU4786999A (en) 2000-01-10
WO1999067466A1 (en) 1999-12-29
EP1099025A1 (de) 2001-05-16
CA2335631A1 (en) 1999-12-29
CA2335631C (en) 2006-09-19
FI981429A0 (fi) 1998-06-22
FI113791B (fi) 2004-06-15
DE69941955D1 (de) 2010-03-11
FI981429A (fi) 1999-12-23
US20050098284A1 (en) 2005-05-12

Similar Documents

Publication Publication Date Title
EP1099025B1 (de) Verfahren und vorrichtung zur behandlung der oberfläche eines bandes
US4596633A (en) Surface treatment of paper and paperboard
US6680086B1 (en) Method for making paper, assembly for implementing the method and paper product produced by the method
US5753078A (en) Method of making surface coated or impregnated paper or paperboard
CA2365989C (en) Method and apparatus for handling a paper or board web
US6490813B1 (en) Drying and smoothing unit for webs of fibrous material
FI110443B (fi) Liimakäsitellyn paperin tai kartongin valmistamiseen tarkoitettu menetelmä ja sovitelma
FI62563C (fi) Ytlimnings- och/eller belaeggningsanordning foer pappersbana eller liknande
CA2412441C (en) Precalendering method, finishing method and apparatus for implementing the methods
US6537616B2 (en) Stam-assisted paper impregnation
US6537615B2 (en) Steam-assisted paper impregnation
JPS5844797B2 (ja) 脱水プレス
JP2004519323A (ja) 紙若しくは板紙ウェブ塗工方法及び塗工紙グレード
WO1998037275A1 (en) Method for treatment of cardboard or paper, an apparatus for carrying out the method and a product by the method and means for producing the product
EP1274900B1 (de) Verfahren und vorrichtung zur herstellung von beschichteten und satinierten papieren
WO2005028751A1 (en) Method for producing surface sized paper or cardboard web
DE10358218A1 (de) Auftragsverfahren

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20010104

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: METSO PAPER, INC.

17Q First examination report despatched

Effective date: 20080213

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69941955

Country of ref document: DE

Date of ref document: 20100311

Kind code of ref document: P

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20100120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100520

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100120

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100120

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100421

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100120

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100120

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20101021

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100120

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100622

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20110228

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20100120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100622

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100622

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100622

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20140611

Year of fee payment: 16

Ref country code: DE

Payment date: 20140619

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69941955

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 455903

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150622

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150622