EP0029865A1 - Dispositif et procédé pour le couchage de bandes en mouvement notamment en papier ou en carton - Google Patents

Dispositif et procédé pour le couchage de bandes en mouvement notamment en papier ou en carton Download PDF

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Publication number
EP0029865A1
EP0029865A1 EP79104840A EP79104840A EP0029865A1 EP 0029865 A1 EP0029865 A1 EP 0029865A1 EP 79104840 A EP79104840 A EP 79104840A EP 79104840 A EP79104840 A EP 79104840A EP 0029865 A1 EP0029865 A1 EP 0029865A1
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EP
European Patent Office
Prior art keywords
scraper
support roller
inlet
web
axis
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.)
Granted
Application number
EP79104840A
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German (de)
English (en)
Other versions
EP0029865B1 (fr
Inventor
Rainer Esser
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.)
Zanders Feinpapiere AG
Original Assignee
Zanders Feinpapiere AG
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
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Application filed by Zanders Feinpapiere AG filed Critical Zanders Feinpapiere AG
Priority to AT79104840T priority Critical patent/ATE1769T1/de
Priority to EP79104840A priority patent/EP0029865B1/fr
Publication of EP0029865A1 publication Critical patent/EP0029865A1/fr
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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
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/023—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
    • 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
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/0005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • D21H5/006—Controlling or regulating
    • D21H5/0062—Regulating the amount or the distribution, e.g. smoothing, of essentially fluent material already applied to the paper; Recirculating excess coating material applied to paper

Definitions

  • the invention relates to a method for coating paper or cardboard webs with conventional pigment dispersions, in particular the setting of the wet application weight of the coating material and a device for carrying out the method.
  • the dry application weights are between 5 and 35 g / m 2 .
  • the coatings are usually made from an aqueous dispersion with different dry matter contents, so that the wet application weights are considerably higher. It has proven to be expedient first to apply an excess of coating material to the running material web and then to remove it again from the surface by means of metering devices, the aim being at the same time to smooth the coating surface.
  • the known metering devices include roller applicators in connection with metering rollers, so-called reserve roll coaters, roller scraper metering devices, also known as squeegees, and smoothing scraper devices, better known under the abbreviation Blade.
  • the coated material web is carried by a support device, for example a roller, and is carried by the dosing unit, e.g. Blade or squeegee, a pressure exerted on the web that counteracts the coating compound.
  • a support device for example a roller
  • the dosing unit e.g. Blade or squeegee
  • DE-AS 10 71 039 describes a device for regulating the application weight, in which the web is carried on the uncoated side by a support roller referred to as a coating drum, while a doctor blade arranged on the coated side is provided for adjusting the application weight.
  • This doctor blade is arranged on a rotatably mounted shaft and can be pressed against the running web with a selectable contact pressure.
  • US-PS 2 051 403 discloses a coating device in which the essential is the formation of the scraper.
  • This stripper which is designed in a special shape, has two different radii in the course of its curvature, the end of the inlet flank not being a sharp edge, since such a surface leads to a faulty surface and unsatisfactory results.
  • the application thickness depends on the roller diameter, the hardness of the roller surface and the peripheral speed of the rollers.
  • Blade blades and doctor blades are, by themselves, not sufficiently stable tools and require brackets and guides that give them the required straightness, bending strength and resistance to the back pressure of the coating material. There are particularly high demands on the off guides of such mounts. With today's common web widths of several meters and web speeds of up to 1200 m per minute, the requirements can only be met to a certain extent by appropriate design.
  • the rollers used can be adjusted with the required accuracy even with large widths, but the surface qualities achieved with them often do not meet the requirements, because after passing through the zone with the highest pressure, subsequent contact with the layer surface is still unavoidable. This causes the coating to split with more or less severe loss of surface smoothness. Depending on the doctor blade diameter, this effect also occurs with these metering devices. In contrast, the blade blades have a sharp edge delimiting the coating zone and thus avoid subsequent contact.
  • one or the other of the known metering devices has proven to be more suitable. In practice, roller metering has proven to be better for higher coat weights, while smooth scraper devices are preferred for low coat weights and high web speeds.
  • the currently possible and usual coating systems can have working widths of up to 6000 mm.
  • the working speeds and the application weights are heavily dependent on the types and the desired properties; for LWC paper (LWC is derived from light weight coated), for example, they are up to 1200 m / min. with application weights up to 10 g / m 2 and side; for cardboard, for example, up to 250 m per minute with application weights of about 30 g / m2 per page and for so-called art paper up to 600 m per minute with application weights of about 25 g / m2.
  • the object of the present invention is to provide a device for setting application weights for web coatings and to show a method in which paper webs are coated with conventional pigment dispersions, both low and high wet application weights with very good surface qualities being achieved by different modes of operation.
  • the present invention relates to a process for coating running webs of paper or cardboard with conventional pigment dispersions, in which an excess of coating material is first applied to the web and then the excess is removed with a scraper, or in which the scraper also serves as an application device , wherein the setting of the wet application weight by means of the scraper takes place in that it is sharp presses the angular end of the inlet flank of the stripper against the surface of the coating at the point formed in the plane formed by the central axis of the support roller and the axis of rotation of the stripper.
  • the distinguishing feature is that by increasing the contact pressure, the opposing hydrodynamic pressure of the coating material is overcome and the elastic surface of the support roller is pressed into the pressing zone and either the pressing zone is lengthened by pivoting the stripper about its axis of rotation (D), the sharp-edged end form the inlet flank of the scraper 0.5 - 5.0 mm from the plane, the central axis (B) of the support roller and the axis of rotation (D) of the scraper, to the side facing away from the inlet gap or the angle of the inlet gap between the support roller and the inlet flank of the scraper by swiveling the scraper about its axis of rotation, the sharp-edged end of the inlet flank of the scraper forming 0.5-100 mm out of the plane, the central axis (B) of the support roller and the axis of rotation (D) of the scraper, according to the inlet gap side is removed.
  • the invention further relates to a device for carrying out the method, in particular for adjusting the wet application weight of the coating compositions on material guided in the running web, with a roller supporting the running web on the uncoated side and a scraper which is adjustable in the direction of the roller and with a preselectable one Pressure can be pressed onto the coated side of the material web and pivoted about an axis (D) running parallel to the central axis (B) of the support roller.
  • the characteristic of the device is that the stripper, which is at rest during coating in a manner known per se, is rigid in itself, the inlet side of the stripper has a curved inlet flank with a radius of curvature of 50-200 m, the inlet flank is formed with sharp edges at its end which lies against the material web and forms a press zone and the support roller has an elastic surface in a manner known per se.
  • Embodiments of the device according to the invention are characterized in the subclaims.
  • Figure 1 A material web, for example a paper or cardboard web 1, is fed to the support roller 2 via a deflection roller 3, wraps around it and is removed again via a further deflection roller 3 and reaches subsequent parts of the coating system, for example a dryer, not shown.
  • a customary and known application unit 4 With the aid of a customary and known application unit 4, an excess of coating material is applied to the web and in the press zone, formed by the support roller 2 and the stripper 5, removed from the web 1 and reaches a collecting trough, not shown.
  • the set coating thickness 8 remains on the web 1 behind the stripper 5.
  • the center distance of the parallel axes, the central axis B, the support roller 2 and the rotational or pivoting axis D of the stripper 5 can be set very precisely and reproducibly.
  • the support roller 2, the scraper 5 and the application unit 4, which is only shown schematically and by way of example, are accommodated in a stable frame, which contain the necessary drive devices for the application unit and the support roller 2.
  • the distance between the axes B and D can be adjusted via the bearings of the stripper 5 on both sides in the frame. By reducing this distance, a pressure in the direction of the central axis B of the support roller 2 can be exerted by means of the stripper 5 and a press zone can be formed between the elastic surface of the support roller 2 and the stripper 5.
  • the coated web passes through this press zone, in which the application thickness is set.
  • the stripper 5 is pivotable about its axis D so that both the sharp-edged end of the inlet flank 6 and any points on the curved inlet flank 7 of the stripper 5 can be brought into contact with the surface of the coated web to form the pressing zone.
  • the facilities required for the exact and reproducible setting of the scraper 5 are accommodated in or on the chair.
  • the desired contact pressure on the support roller will be generated mechanically, hydraulically or pneumatically via the ends of the stripper 5 on both sides.
  • pneumatic systems have proven themselves better than mechanical or hydraulic systems, and are therefore preferred for use in the device according to the invention.
  • FIG. 2 In this arrangement, which differs from FIG. 1, the material web is brought to the support roller 2 via a deflection roller 3, wraps around it and is removed via a second support roller 3.
  • the stripper 5 in combination with the trough 9 and the web 1 forms the application station in which the application thickness of the coating material is also regulated by means of the stripper 5. After passing the press zone between the stripper 5 and the support roller 2, only the set application thickness is present on the web.
  • FIG. 3 shows a preferred embodiment of the scraper 5 as a sector of a roller with the axis of rotation D, the curved inlet flank 7 and the sharp-edged end 6.
  • the radius of curvature of the inlet flank 7 can be between 30 and 500 mm. Radii of 50 to 200 mm are preferred. Radii of 75 and 130 mm have proven particularly useful.
  • the sharp-edged end 6 of the inlet flank 7 is formed with the aid of an exchangeable hard metal rail.
  • one side of the rail is ground in accordance with the radius of curvature of the inlet flank in order to avoid discontinuities in the inlet flank.
  • 10 mm thick rails made of stainless steel have proven successful, but other corrosion-resistant materials can also be used if they are sufficiently hard and abrasion-resistant, for example corresponding plastics.
  • FIG. 4 With larger working widths, this embodiment offers the advantage of still further improving the stability of the stripper, which is rigid in itself.
  • the scraper 5 has a cylindrical support surface 10 on the side facing away from the inlet flank 7, the central axis of which is arranged concentrically with the pivot axis D.
  • a support body 11 bears against this support surface 10, which can be of any desired design if it has a support line or a support surface for the support surface 10 and fulfills the support function.
  • the support. body 11 is fixed at its ends in the chair and adjustable so that it improves the stability of the rigid stripper 5 and enables the maintenance of an absolutely uniform contact pressure over the entire working width even in very wide systems.
  • Figure 5 This embodiment, in which several wipers 5 are combined into one unit, offers the advantage that the individual wipers 5 can have not only the same, but also differently curved inlet flanks 7.
  • a plurality of wipers 5 are arranged on a cylindrical body 12, for example a roller body. These wipers are advantageously evenly distributed over the surface of the roller body. Symmetrical arrangements are preferred, but not a requirement.
  • the radius of the roller body is expediently chosen to be so large that it is identical to the largest desired radius of curvature of the inlet flanks 7. As a result, part of the surface of the roller body forms the inlet flank 7 of one or more wipers 5.
  • the sharp-edged ends of the inlet flanks 6 of all wipers 5 arranged on the roller body 12 are equidistant from the axis of rotation D of the roller body. Desired smaller radii of curvature of part of the wipers 5 are produced by correspondingly working out the inlet flanks 7 without the distance between the edges 6 and the center of the roll having to be changed.
  • the required stripper 5 can be brought with its sharp-edged end 6 into the working position opposite the support roller.
  • This embodiment makes it possible to replace the stripper 5 by simply pivoting the roller body about its axis of rotation D without major interruptions in operation.
  • Such a change may be necessary, for example, if the sharp-edged end 6 of the curved inlet flank 7 is defective or dirty.
  • a different radius of curvature of the inlet flank 7 of the scraper may also be required when changing the product to change the application weight.
  • no conversion is necessary in this case, it is sufficient to pivot the roller body in order to bring the required wiper 5 into the working position.
  • the radii of curvature of the inlet flanks used in this embodiment are the same as when the wipers are designed as roller sectors and are between 30 and 500 mm.
  • the radius of the not in Fig. 5, but in Fig. 1st and 2 shown support roller 2 is 150-500 mm, depending on the working width, with larger working widths generally requiring larger radii in order to avoid deflections.
  • the back-up roller has an elastic covering on a hard core. Synthetic rubber types or synthetic polymers with the necessary elasticity are suitable for this.
  • the surface hardness of the backup roller can be determined using various measuring methods.
  • Pusey and Jones plastometers P + J units, measured with the 1/8 "ball) or Shore hardness measuring devices (Shore A, measured with truncated cone) are common.
  • the preferred embodiments of the process according to the invention in which the scraper is pivoted about its axis of rotation, make it possible to set the application weight in a particularly large area.
  • a flat inlet gap and an extension of the press zone between the scraper and backup roller are required.
  • the edge of the scraper is removed on the side facing away from the inlet gap on the plane which forms the central axis B of the support roller and the axis of rotation D of the scraper.
  • the scraper is pivoted in such a way that the edge is removed from the plane on the side facing away from the inlet gap. Only a small distance, up to about 5 mm, is possible without sacrificing the quality of the line surface.
  • the highest wet application weights are achieved with a given radius of curvature of the inlet flank of the scraper.
  • the application weight is also dependent on the contact pressure of the scraper, the properties of the material to be coated, for example the base paper, depending on the properties of the coating material and the machine speed.
  • a steep inlet gap and a short press zone are required for the lowest possible application weight.
  • the scraper is rotated about its axis and the edge, ie the sharp-edged end of the inlet flank, is removed from the plane of the axes of the support roller and scraper on the side facing the inlet nip.
  • the distance of the edge from the plane can be 0.5 - 100 mm. In the normal case, however, for a given radius of curvature and constant contact pressure of the stripper, for example about 50 mm are sufficient to reduce the application weight from 30 g / m 2 and side to 7 g / m 2 and less.
  • the surface hardness of the back-up roller also has an influence. In the case of harder surfaces with a correspondingly low press-in depth of the scraper, a shorter press zone is created, so that the distance from the edge from the plane required for a certain weight reduction is smaller than with softer support roller surfaces.
  • the main effect is achieved by increasing the inlet angle of the metering gap.
  • the angle can be influenced by a corresponding choice of the radius of curvature of the inlet flank of the scraper and also by an arrangement of the support roller and scraper, in which the axes lie on an inclined plane.
  • these possibilities of influence are exhausted during the construction of the plant and are then no longer variable.
  • the preferred embodiment of the invention in which a plurality of wipers are arranged on a cylindrical body, has proven to be particularly advantageous in this regard, since a number of different radii of curvature are available without major retooling.
  • the coating color also contains the necessary proportions of dispersing aid, defoamer and other customary additives.
  • the coating system has the arrangement shown in FIG. 1.
  • the Bahh width is 315 cm. 5 is used as the scraper, 4 scraper having the same radius of curvature (150 mm) being arranged on the roller body.
  • the backup roller has a diameter of 800 mm, the surface hardness is 46 Shore A (140 P + J units).
  • a short press zone is achieved in that the sharp-edged end of the stripper is so strong at the point on the web surface in the plane formed by the central axis of the support roller and the axis of rotation of the stripper is pressed that the backup roller surface is pressed.
  • a shorter or longer press zone is created, with smaller radii shortening the press zone.
  • the press zone can be shortened even further by swiveling the scraper around its axis of rotation, the sharp-edged end of the inlet fl; :: e of the scraper is removed from the plane, the central axis of the support roller and the axis of rotation of the scraper, to the side of the inlet gap.
  • This increases the angle of the inlet gap between the support roller and the inlet flank of the scraper.
  • the enlargement has the same effect as the reduction in the radius of curvature of the inlet flank of the scraper.
  • An extension of the pressing zone with a given radius of curvature of the inlet flank is achieved by pivoting the stripper about its axis of rotation, the sharp-edged end of the inlet flank forming out of the plane, the central axis of the support roller and the axis of rotation of the stripper, after the side facing away from the inlet gap is removed .
  • the higher application weight B) of 25 g / m 2 is an amount for which a blade is less suitable due to the required small angle of attack and the low contact pressure.
  • Other application devices are usually required for this, for example a roller application unit.
  • a longer coating weight is also possible by lengthening the press zone, without unacceptable weight fluctuations occurring across the web.
  • the high quality requirements have narrowed the tolerable range of weight deviations very much.
  • the working widths of the systems have been continuously increased, whereby with the conventional metering devices, weight deviations across the web had to be accepted. This disadvantage is now overcome by the invention.
  • the sharp-edged end of the inlet flank of the scraper is removed approx. 0.5 mm from the plane of the axes of rotation on the side facing away from the inlet gap.
  • This achieves an effect of the scraper that is comparable to a roller applicator.
  • a contact pressure of 3 kg / cm (line pressure) generated at the side ends of the scraper in the frame against the support roller a wet application is achieved in the present case, which in the dried state (6% moisture) is 25 g / m2.
  • the control weight was determined at the same web height on the outer edges and in the middle of the web. Average values from several measurements gave: 25 g / m2 and 24 g / m2 outer web cant , 24 g / m 2 web center .
  • a major advantage of the method according to the invention is that, regardless of the desired application weight, such a contact pressure can always be selected that enables the gap to be formed exactly across the web, even with larger working widths.
  • the prerequisite for this is the correct elasticity of the support roller surface, which must enable the scraper to be pressed so strongly that a stable press zone, which is exactly the same across the web, is formed by deformation of the support roller surface, and the stripper which is rigid in itself.
  • the contact pressure should be as low as possible considering the design effort of the scraper, back-up roller and their bearings in the chair. However, it must be so large that at least that of the usual web speeds of up to 1200 m / min. building hydrodynamic pressure of the coating is compensated.
  • Another advantage of the method according to the invention is that very different application weights with less fluctuations than previously customary are possible with only one device, in particular with large working widths. In this way, the surface and transparency of the coating are achieved in a way that was previously only possible with different metering devices specially adapted to high or low application weights.
  • the advantage of the stripper which is inherently rigid according to the invention, is that it can not only be produced with the required accuracy without major difficulties, but can also be adjusted with great accuracy and reproducibility across the web.
  • the metering gap which forms between the support roller and the scraper during operation is of equal thickness at all points across the web and permits less deviations from the target weight than was possible with the metering devices known hitherto.
  • the device is of course also suitable for dosing coating compositions which do not contain pigment.

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EP79104840A 1979-12-03 1979-12-03 Dispositif et procédé pour le couchage de bandes en mouvement notamment en papier ou en carton Expired EP0029865B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT79104840T ATE1769T1 (de) 1979-12-03 1979-12-03 Vorrichtung und verfahren zum beschichten von laufenden bahnen beispielsweise aus papier oder karton.
EP79104840A EP0029865B1 (fr) 1979-12-03 1979-12-03 Dispositif et procédé pour le couchage de bandes en mouvement notamment en papier ou en carton

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP79104840A EP0029865B1 (fr) 1979-12-03 1979-12-03 Dispositif et procédé pour le couchage de bandes en mouvement notamment en papier ou en carton

Publications (2)

Publication Number Publication Date
EP0029865A1 true EP0029865A1 (fr) 1981-06-10
EP0029865B1 EP0029865B1 (fr) 1982-11-10

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ID=8186250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104840A Expired EP0029865B1 (fr) 1979-12-03 1979-12-03 Dispositif et procédé pour le couchage de bandes en mouvement notamment en papier ou en carton

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EP (1) EP0029865B1 (fr)
AT (1) ATE1769T1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0071149A1 (fr) * 1981-07-24 1983-02-09 Reinhard Esser Dispositif de dosage du poids de couches de revêtement sur une bande en mouvement
DE4230241A1 (de) * 1992-09-10 1994-03-17 Voith Gmbh J M Auftragswerk zur Beschichtung von Bahnen aus Papier oder Karton
WO2010147509A2 (fr) * 2009-06-19 2010-12-23 Lyubomirskiy Andrey Vilenovich Procédé de formation d'un revêtement décoratif sur la surface d'un article allongé (réalisations)
WO2012072196A1 (fr) * 2010-11-30 2012-06-07 Horst Sprenger Gmbh Dispositif pour enduire des bandes de papier ou de carton
EP2314382A3 (fr) * 2009-10-23 2013-09-11 Salzgitter Mannesmann Präzisrohr GmbH Tige de racle pour systèmes de dosage destinée à répartir et racler un support fluide ou visqueux sur une bande de matériau déroulante

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1925092A (en) * 1932-09-26 1933-09-05 John Waldron Corp Smoothing device
US2033379A (en) * 1933-02-18 1936-03-10 Swann Res Inc Doctor or smoothing blade for treating coated sheets
US2344232A (en) * 1940-12-12 1944-03-14 Int Paper Co Apparatus for coating
GB968617A (en) * 1962-01-23 1964-09-02 Smith & Nephew Improvements in and relating to the manufacture of plaster of paris and other porous bandages, and other coated carriers or surfaces
US3453137A (en) * 1965-10-05 1969-07-01 Black Clawson Co Paper machinery

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2534320A (en) * 1946-05-16 1950-12-19 Champion Paper & Fibre Co Apparatus for coating paper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1925092A (en) * 1932-09-26 1933-09-05 John Waldron Corp Smoothing device
US2033379A (en) * 1933-02-18 1936-03-10 Swann Res Inc Doctor or smoothing blade for treating coated sheets
US2344232A (en) * 1940-12-12 1944-03-14 Int Paper Co Apparatus for coating
GB968617A (en) * 1962-01-23 1964-09-02 Smith & Nephew Improvements in and relating to the manufacture of plaster of paris and other porous bandages, and other coated carriers or surfaces
US3453137A (en) * 1965-10-05 1969-07-01 Black Clawson Co Paper machinery

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0071149A1 (fr) * 1981-07-24 1983-02-09 Reinhard Esser Dispositif de dosage du poids de couches de revêtement sur une bande en mouvement
DE4230241A1 (de) * 1992-09-10 1994-03-17 Voith Gmbh J M Auftragswerk zur Beschichtung von Bahnen aus Papier oder Karton
US5439520A (en) * 1992-09-10 1995-08-08 Voith Sulzer Papiermaschinen Gmbh Applicator for coating webs of paper or cardboard
WO2010147509A2 (fr) * 2009-06-19 2010-12-23 Lyubomirskiy Andrey Vilenovich Procédé de formation d'un revêtement décoratif sur la surface d'un article allongé (réalisations)
WO2010147509A3 (fr) * 2009-06-19 2011-03-31 Lyubomirskiy Andrey Vilenovich Procédé de formation d'un revêtement décoratif sur la surface d'un article allongé (réalisations)
EP2314382A3 (fr) * 2009-10-23 2013-09-11 Salzgitter Mannesmann Präzisrohr GmbH Tige de racle pour systèmes de dosage destinée à répartir et racler un support fluide ou visqueux sur une bande de matériau déroulante
WO2012072196A1 (fr) * 2010-11-30 2012-06-07 Horst Sprenger Gmbh Dispositif pour enduire des bandes de papier ou de carton

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Publication number Publication date
EP0029865B1 (fr) 1982-11-10
ATE1769T1 (de) 1982-11-15

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