EP0193075B1 - Verfahren zum Endlosmachen eines mehrlagigen Entwässerungsbandes, insbesondere eines Papiermachernassfilzes - Google Patents

Verfahren zum Endlosmachen eines mehrlagigen Entwässerungsbandes, insbesondere eines Papiermachernassfilzes Download PDF

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Publication number
EP0193075B1
EP0193075B1 EP86102036A EP86102036A EP0193075B1 EP 0193075 B1 EP0193075 B1 EP 0193075B1 EP 86102036 A EP86102036 A EP 86102036A EP 86102036 A EP86102036 A EP 86102036A EP 0193075 B1 EP0193075 B1 EP 0193075B1
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EP
European Patent Office
Prior art keywords
layers
batt
layer
canvas
zone
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
Application number
EP86102036A
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English (en)
French (fr)
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EP0193075A1 (de
Inventor
Marcel Dufour
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.)
COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
Original Assignee
COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
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.)
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Publication date
Application filed by COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA filed Critical COFPA Compagnie des Feutres pour Papeteries et des Tissus Industriels SA
Priority to AT86102036T priority Critical patent/ATE44989T1/de
Publication of EP0193075A1 publication Critical patent/EP0193075A1/de
Application granted granted Critical
Publication of EP0193075B1 publication Critical patent/EP0193075B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/10—Seams thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S162/00—Paper making and fiber liberation
    • Y10S162/904—Paper making and fiber liberation with specified seam structure of papermaking belt
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/19—Sheets or webs edge spliced or joined

Definitions

  • the present invention relates to the connection of two sections of a composite wiping strip, and in particular of a wet-end felt for stationery.
  • Such a strip comprises on the one hand a canvas of woven, stiff and mechanically resistant threads, to withstand the tensioning forces of the strip and maintain intervals of passages for a liquid to be expelled, and on the other hand a sheet made up of fibers. fine and flexible intertwined to form a soft surface allowing to apply pressure to a deformable sheet to wring it without marking it.
  • this strip is installed on the rollers in open form but must then be looped over itself before its continuous use, or if sections of separate strips must succeed one another, the problem arises the connection of two sections. It can be resolved in a known manner with respect to the canvas. And it is also known to stop the plies of flexible fibers, at the two ends to be connected, so as to show, after the connection of the scrim, neither gap between these two plies nor overlap.
  • the composite wiping strip two sections of which must be connected
  • a stationery felt which is advantageously manufactured and installed in the form of a strip having two ends, and which is then used, after connection of these ends, in the form of a tight band circulating in a closed loop.
  • a felt thus connected can be called "junction felt”.
  • the sheet is then transported, still on a felt circulating around rollers, in a drying zone where water is evacuated by evaporation under the action of heat, part of the steam passing through the felt.
  • the second section to be connected are cut, over the entire thickness of the sheets and over the entire width of the felt, so that, when the connection of the canvas has been made and when the flap is lowered to cover the connection line of the canvas , the edge of the flap coincides with the edge of the second ply to be connected, that is to say that of the second section of the felt, along a ply connecting line. This avoids any excess or any defect in the ply material in the vicinity of the connection.
  • connection line of the plies is disposed behind that of connection of the scrims, with respect to the direction of circulation of the felt in service. It indeed appears desirable that, when the felt passes between two pressure rollers, the force component applied provisionally rearward by these rollers does not risk displacing the free end of the flap towards its attachment to the rest of the first ply , which would form a fold that would mark the sheet of paper. Still for the same purpose, it is indicated that after connecting the canvas and putting the flap in its final position, needling is carried out to fix the flap to the canvas on either side of the connecting line of the canvas. It is also indicated, as an alternative, that the flap can be glued to the canvas.
  • the figures in the document above show that the plane of cut and connection of the two layers is inclined relative to the vertical, that is to say that the line of connection of the layers appears more in rear at the upper part of the sheets than at their lower part, and that there is in fact a sheet connection zone whose longitudinal extension appears to be of the order of half the thickness of the sheets.
  • the present invention more particularly aims to avoid the damaging effects that may have in service the irregularities of a composite wiping strip, in particular of a stationery felt, in a connection zone between two successive sections of this strip. .
  • this strip comprising on the one hand a woven scrim (40) made up of strong and relatively large and stiff threads to withstand the forces applied to the strip parallel to its surface and to maintain intervals for easy circulation of a liquid even in the presence of a spin pressure perpendicular to this surface,
  • This strip further comprising a ply (42) made of relatively fine and flexible fibers to form a soft and permeable support surface even in the presence of said spin pressure, the cohesion of this ply and its attachment to the canvas being obtained by needling, the surface density of the ply being the same for these two sections,
  • each of said first and second (50) layers is first cut so that the edges of these two layers can come into coincidence if each said flap was lowered (52, 78, 80), then each of the ends of the sheet thus formed is combed by teeth driven into the thickness of the sheet and moving longitudinally towards the free end of this sheet, this combing being started on an extreme section of the ply of length at least equal to the thickness of this section and continued to lengthen the ply by at least this thickness, so as to create or lengthen said ply connection zone and to locally remove at least partially the entanglement of the fibers of these sections, to allow said final needling to exert its action under conditions similar to those of the formation and fixing of said first and second plies, and thus to confer more homogeneous compressibility on said continuous ply resulting from this final needling.
  • each of said first and second plies is constituted by the superposition of several layers (70, 72, 74, 76) occupying a succession of levels and fixed the to each other by needling, this process being characterized by the fact that during the said step of preparing the plies, these layers are cut according to the connecting lines of the layers distributed longitudinally over the said zone for connecting the plies, the needling of these layers the one on the other having been previously omitted in the connection area.
  • Figure 1 shows the wet end of a stationery making newsprint, the direction of view being parallel to the axes of the spin rollers.
  • Figures 2, 3, 4 and 5 show side views of the connection area of a wet-end felt used in the stationery of Figure 1, in successive stages of the first embodiment of the method according to the invention , to connect two end sections of this felt previously engaged on the rollers of Figure 1, to form a felt closed loop of this figure.
  • Figures 6 and 7 show side and partial top views, respectively, of a needling apparatus for effecting the final sharpening of the method according to the invention.
  • Figures 8, 9 and 10 show views similar to those of Figures 2, 3, 4 and 5, but according to the second previously mentioned embodiment of the invention.
  • a stationery producing newspaper paper has the following provisions:
  • a permeable fabric 2 circulates on rollers such as 4 and 6 after having taken liquid paper pulp from which the water has flowed. It thus forms an inconsistent sheet 8 whose dry matter content is of the order of 20% and which arrives according to arrow 10.
  • a felt of wet part 12 It is taken from this canvas by a felt of wet part 12, by means of a roller 14.
  • a first pair of pressure rollers 16, 18 ensures a first spin.
  • a second wet-end felt 20 separates this sheet from the roller 18.
  • a second pair of rollers 22, 24 provides a second spin.
  • the sheet is driven by the roller 24, of polished granite, to a third pressing zone formed by this roller and a roller 26 on which a third felt 28 circulates.
  • rollers 30, 32, 34 direct the sheet 8, along an arrow 36, to a drying zone, not shown.
  • the speed of circulation can go up to 2000 meters per minute.
  • the pressures ensuring the spin can go up to 1100 kN per centimeter of width of the felt between rollers whose diameter can be between 0.4 and 2 m approximately. They cannot be reduced under penalty of reducing the efficiency of the spin and increasing the energy consumption in the drying zone which follows it. Under these conditions, any appreciable variation in thickness of the felt causes an indelible mark on the sheet 8.
  • This felt is delivered to the stationery and installed around the rollers in the form of an open strip of the desired length. This length is not limited by the dimensions of the weaving looms that make the canvas. These two felt end sections are then connected to form a closed loop which is subsequently tensioned.
  • a first of these sections of felt comprises a first canvas 44 and a first ply 46, the second section of felt comprising a second canvas 48, and a second ply 50.
  • a flap 52 is formed at the end of the first ply, omitting the needling of the ply on the canvas over the corresponding length.
  • each of the two scrims was formed with loops such as 54 distributed along the width of the felt with their centers arranged along a scaffold connection line.
  • the flap 52 is raised, their two connecting lines are brought into coincidence, the loops of one section passing between those of the other, and a connecting rod 56 is introduced into all these loops according to the common connection line.
  • This rod will generally be stiffer than the wide threads of the canvas. Its diameter is for example 1 mm.
  • the weaving of the canvas and this rod are chosen so that the thickness of the canvas is little changed in the connection area.
  • Other known connection methods can be used, for example in the case where the canvas consists of propellers whose axes are arranged along its width, which follow one another for a long time.
  • the connecting rod can be identical to these stiff wires.
  • the flap 52 and the end of the second ply 50 are cut, for example with a razor blade, possibly going slightly forwards while going down, according to two cutting planes parallel to the width of the felt and such that, if the flap is lowered, the two cutting planes, and therefore the two edges of the two plies in these planes, come into coincidence.
  • the flap is lowered and pressed on the combed end of the second sheet.
  • FIGS. 5, 6 and 7. The above-mentioned final needling operation is shown in FIGS. 5, 6 and 7. It is carried out using a portable jigsaw 62 on the market. In place of the saw blade of this apparatus, a board 64 of 1.5 x 2.5 cm has been mounted in which two rows of three vertical needles such as 66 projecting down have been fixed. The vertical reciprocating movement has, for example, an amplitude of 3 cm and the needles in the high position have their tips about 1 cm above the continuous ply being formed. These needles are of the type usually used for needling, for example with a triangular section and edges deformed locally to form barbs which entrain the fibers in their vertical movement to entangle them.
  • This needling is carried out over the entire connection zone until a thickness and compressibility of the ply are approximately equal to those of the ply on either side over the whole of this zone. This thickness and compressibility vary together and can be properly appreciated by passing your fingers over and next to this area.
  • the guide plate 68 of the device 62 ensures the verticality of the needling.
  • the final needling with three distinct functions one is the fixing of the flap to the canvas, the other is the restoration of the mechanical continuity of the web with respect to horizontal forces, and the third is the standardization of the vertical compressibility of the sheet.
  • the ply overlap zone is shown in ZR, the longitudinal extension of this overlap zone being at least twice the thickness of the ply.
  • the sheet comprises several layers, each of which is formed from several needled webs one on the other. These layers are laid on the canvas previously described. The number of these layers is typically two as shown, but may be three. There are more precisely two first layers of first and second level 70 and 72 respectively, above the first canvas 44, and two second layers of first and second level 74 and 76 respectively, above the second canvas 48.
  • the needling of the first two layers 70 and 72 has been omitted in an area which should form with these two layers two first and second level flaps 78 and 80, which allow access to the scrim connection line.
  • the needling of the second second level layer 76 has also been omitted to allow this layer to be raised to cut it without cutting the second first level layer.
  • connection of the two sections of canvas 44 and 48 is carried out as in the first embodiment described above.
  • the layers are cut at each level (Fig. 9) so that after lowering the flaps the apparent continuity of each layer is ensured, that is to say so that at each level the edge of the first layer comes coincidence with that of the second layer.
  • the two cutting lines that is to say the connecting lines of layers of the two levels are chosen at the ends of the envisaged connection zone, (or in the vicinity if the preferred arrangement is adopted below).
  • the connecting line of the intermediate level would be made in the middle of this area.
  • combing is carried out at each level as previously indicated in the first embodiment of the invention, which lengthens the connection area.
  • the present invention is particularly advantageous in the case of the production of cartons.
  • a type of stationery felt used in this case is said to be "long taker” (in English “long bottom felt” or “long top felt”).
  • the formation of the flap by razor cutting for example, is difficult to carry out and compromises the service life or even the quality of service of the felt, this because this flap has a fiber density too low to hold (for keep its shape and dimensions).
  • the invention makes it possible to use a junction felt.
  • the invention also appears particularly useful in the case of the manufacture of cotton wool (very light sheet: 15 to 30 g / m 2 ) because in this case the discontinuity, even moderate, brought about by a cut in the snap of a Junction felt can create a relatively large variation in the consistency of the sheet produced.
  • the present invention allows in this case the use of a junction felt as a "lifter, boarder and frictionneur".

Landscapes

  • Paper (AREA)
  • Nonwoven Fabrics (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Basic Packing Technique (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Replacement Of Web Rolls (AREA)

Claims (3)

1. Verfahren zum Verbinden zweier Abschnitte eines mehrlagigen Entwässerungsbandes, insbesondere eines Papiermaschinennaßteilfilzes, und damit zum Verbinden eines ersten und eines zweiten Abschnitts eines Bandes, von denen jeder aufweist:
- ein erstes (44) oder zweites gewebtes Basisband (48), bestehend aus widerstandsfähigen, relativ groben und steifen Fäden, um den auf das Band parallel zu seiner Oberfläche ausgeübten Kräften standzuhalten und um Lücken für den leichten Durchtritt einer Flüssigkeit freizulassen, auch bei Vorhandensein eines senkrecht zu dieser Oberfläche wirkenden Entwässerungsdrucks,
- und eine erste (46) oder zweite Filzschicht (50) aus relativ feinen und biegsamen, auf das entsprechende Basisgewebeband genadelten Fasern zur Bildung einer weichen und durchlässigen Tragoberfläche auch bei Vorhandensein des Entwässerungsdruckes, wobei die beiden Filzschichten gleiche Dicke und Lagenoberflächendichte aufweisen,
- wobei das Verfahren die folgenden Stufen aufweist:
- Herstellung der Verbindungsmittel (54) an den Enden des ersten (44) und zweiten Basisgewebebands (48), um ihre gegenseitige Verbindung entlang einer Verbindungslinie zu ermöglichen,
- Bildung mindestens eines Lappens (52) an einem Längs-Endabschnitt mindestens der ersten Filzschicht, wobei dieser Abschnitt von dem entsprechenden Basisgewebe gelöst ist, um zur Freilegung dieser Verbindungslinie angehoben werden zu können,
- Verbinden der beiden Basisgewebebänder (44, 48) entlang der Verbindungslinie, wobei die beiden Lappen (52) angehoben sind,
- Herunterlassen der beiden Lappen zur Abdeckung der Verbindungslinie,
- wobei die Enden der beiden Filzschichten in einer früheren Vorbereitungsphase so vorbereitet wurden, daß sie sich nach dem Herunterlassen in einer Überlappungszone der Filzschichten überdecken, die eine Längsausdehnung besitzt, und die Oberflächendichte der die Filzschichten in dieser Überlappungszone bildenden Masse konstant und gleich der Oberflächendichte der Filzschicht ist,
- und Endnadelung eines Lappens auf dem daruntediegenden Basisgewebe, zur Befestigung daran,
- wobei dieses Verfahren dadurch gekennzeichnet ist, daß die Längsausdehnung der Überlappungszone der Filzschichten (ZR) mindestens dem Doppelten der Dicke der Filzschicht entspricht, und der Vorgang der Endnadelung des Lappens ebenfalls in dieser Zone erfolgt, so daß eine kontinuierliche Schicht (42) ohne örtliche Variation des Kompressionsverhaltens entsteht.
2. Verfahren nach Anspruch 1, bei dem jede der ersten und zweiten Filzschichten aus der Überlagerung mehrerer Einzelschichten (70, 72, 74, 76) gebildet ist, die verschiedene Niveaus einnehmen und miteinander durch Nadelung verbunden sind, dadurch gekennzeichnet, daß während der Vorbereitungsphase der Filzschichten diese Einzeischichten entlang von Schichtverbindungslinien durchschnitten werden, die in Längsrichtung über die Überlappungszone der Schichten verteilt sind, wobei vorher die Nadelung der Einzelschichten miteinander in dieser Zone unterlassen wurde.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß während der Vorbereitungsphase der Filzschichten jede der ersten und zweiten Filzschichten (50) oder jede der Einzelschichten (70, 72, 74, 76) zunächst so abgeschnitten wird, daß die Endkanten der beiden Schichten oder der beiden Einzelschichten gerade aneinanderstoßen würden, wenn jeder der Lappen (52, 78, 80) heruntergelassen würde, daß anschließend jedes so gebildete Ende der Schicht durch Zähne gekämmt wird, die sich in die Dicke der Schicht oder der Einzelschicht einsenken und sich in Längsrichtung zum freien Ende der Einzelschicht bewegen, wobei das Kämmen am Endabschnitt der Schicht oder der Einzelschicht von mindestens gleicher Länge wie die Dicke dieses Abschnitts beginnt, so daß eine Verlängerung der Schicht um mindestens diese Dicke erreicht wird, derart, daß die Überlappungszone der Filzschichten gebildet und verlängert wird und daß örtlich mindestens teilweise die Verfilzung der Fasern dieser Abschnitte zum Verschwinden gebracht wird, so daß die Endnadelung ihre Wirkung unter analogen Bedingungen wie bei der Bildung und Fixierung der ersten und zweiten Filzschicht vollziehen kann, und daß auf diese Weise der kontinuierlichen Filzschicht als Folge der Endnadelung ein homogeneres Kompressionsverhalten verliehen wird.
EP86102036A 1985-02-19 1986-02-18 Verfahren zum Endlosmachen eines mehrlagigen Entwässerungsbandes, insbesondere eines Papiermachernassfilzes Expired EP0193075B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86102036T ATE44989T1 (de) 1985-02-19 1986-02-18 Verfahren zum endlosmachen eines mehrlagigen entwaesserungsbandes, insbesondere eines papiermachernassfilzes.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8502349A FR2577581B1 (fr) 1985-02-19 1985-02-19 Procede de raccordement de deux troncons de bande d'essorage composite, notamment de feutre de partie humide de papeterie.
FR8502349 1985-02-19

Publications (2)

Publication Number Publication Date
EP0193075A1 EP0193075A1 (de) 1986-09-03
EP0193075B1 true EP0193075B1 (de) 1989-07-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102036A Expired EP0193075B1 (de) 1985-02-19 1986-02-18 Verfahren zum Endlosmachen eines mehrlagigen Entwässerungsbandes, insbesondere eines Papiermachernassfilzes

Country Status (10)

Country Link
US (2) US4683624A (de)
EP (1) EP0193075B1 (de)
JP (1) JPS61245395A (de)
AT (1) ATE44989T1 (de)
DE (1) DE3664650D1 (de)
ES (1) ES8704571A1 (de)
FI (1) FI83248C (de)
FR (1) FR2577581B1 (de)
NO (1) NO171735C (de)
ZA (1) ZA861240B (de)

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JPS61252391A (ja) * 1985-04-25 1986-11-10 市川毛織株式会社 抄紙用フエルトの製造方法
FR2611764B1 (fr) * 1987-03-02 1989-05-05 Cofpa Procede de fabrication d'un feutre avec bavette
JPS63167199U (de) * 1987-04-20 1988-10-31
US4940630A (en) * 1987-10-14 1990-07-10 Asten Group, Inc. Base fabric structures for seamed wet press felts
US4824525A (en) * 1987-10-14 1989-04-25 Asten Group, Inc. Papermaking apparatus having a seamed wet press felt
US4892781A (en) * 1987-10-14 1990-01-09 Asten Group, Inc. Base fabric structures for seamed wet press felts
US4902383A (en) * 1988-04-05 1990-02-20 Asten Group, Inc. Method of making a papermaker's felt with no flap seam
US4883096A (en) * 1988-05-04 1989-11-28 Asten Group, Inc. Seam design for seamed felts
US4846231A (en) * 1988-05-04 1989-07-11 Asten Group, Inc. Seam design for seamed felts
US5053109A (en) * 1988-05-04 1991-10-01 Asten Group, Inc. Single layer seamed papermakers fabric
US4991630A (en) * 1989-04-10 1991-02-12 Asten Group, Inc. Single layer pin seam fabric having perpendicular seaming loops and method
GB8826008D0 (en) * 1988-11-07 1988-12-14 Albany Research Uk Modified seam felt
US5361466A (en) * 1993-10-18 1994-11-08 Schuller International, Inc. Method of forming a blanket of uniform thickness
EP0709508A1 (de) * 1994-10-25 1996-05-01 Schuller International, Inc. Verfahren zur Herstellung einer Decke mit gleicher Dicke
US5657797A (en) * 1996-02-02 1997-08-19 Asten, Inc. Press felt resistant to nip rejection
FI101047B (fi) * 1996-09-09 1998-04-15 Tamfelt Oy Ab Menetelmä suodatinpussin valmistamiseksi ja suodatinpussi
FI101090B (fi) * 1996-09-09 1998-04-15 Tamfelt Oy Ab Menetelmä viirakudoksen sauman valmistamiseksi ja viirakudos
US5904187A (en) * 1997-10-22 1999-05-18 Albany International Corp. Seam integrity in multiple layer/multiple seam press fabrics
US6213164B1 (en) * 1999-03-11 2001-04-10 Geschmay Corporation Pintle seamed press felt
US20080092980A1 (en) * 2005-08-26 2008-04-24 Bryan Wilson Seam for papermachine clothing
US7789998B2 (en) * 2007-02-09 2010-09-07 Voith Patent Gmbh Press fabric seam area
FI7901U1 (fi) * 2007-03-20 2008-06-25 Tamfelt Pmc Oy Kuivatusviira ja kuivatusviiran sauma-alue
CN108697190B (zh) 2016-01-19 2021-12-24 耐克创新有限合伙公司 具有材料间的刺绣过渡部的鞋类
CN110177478B (zh) * 2016-01-19 2022-06-17 耐克创新有限合伙公司 具有材料间的毡合过渡部的鞋类

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SE429982C (sv) * 1982-11-02 1985-08-23 Nordiskafilt Ab Filt med oglesom for presspartiet i en pappersmaskin samt forfarande for dess framstellning
DE3404544A1 (de) * 1984-02-09 1985-08-14 Fa. Carl Veit, 7320 Göppingen Spiralsieb fuer papiermaschinen
US4958673A (en) * 1985-02-19 1990-09-25 Asten Group, Inc. Papermaking machine and a seamed papermaker's fabric

Also Published As

Publication number Publication date
FR2577581B1 (fr) 1987-03-06
ZA861240B (en) 1986-10-29
NO171735B (no) 1993-01-18
FR2577581A1 (fr) 1986-08-22
EP0193075A1 (de) 1986-09-03
US5082532A (en) 1992-01-21
US4683624A (en) 1987-08-04
FI83248B (fi) 1991-02-28
ES8704571A1 (es) 1987-04-01
FI860710A0 (fi) 1986-02-17
NO171735C (no) 1993-04-28
JPS61245395A (ja) 1986-10-31
NO860600L (no) 1986-08-20
DE3664650D1 (en) 1989-08-31
ATE44989T1 (de) 1989-08-15
FI83248C (fi) 1991-06-10
ES552177A0 (es) 1987-04-01
FI860710A (fi) 1986-08-20

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