EP0392625A1 - Vorrichtung für Schön- und Wiederbeschichtung und Verfahren zum Beschichten einer Materialbahn - Google Patents
Vorrichtung für Schön- und Wiederbeschichtung und Verfahren zum Beschichten einer Materialbahn Download PDFInfo
- Publication number
- EP0392625A1 EP0392625A1 EP90200862A EP90200862A EP0392625A1 EP 0392625 A1 EP0392625 A1 EP 0392625A1 EP 90200862 A EP90200862 A EP 90200862A EP 90200862 A EP90200862 A EP 90200862A EP 0392625 A1 EP0392625 A1 EP 0392625A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- medium feed
- coating
- screen printing
- rotary screen
- material web
- 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
Links
Images
Classifications
-
- 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
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
-
- 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
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/10—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the liquid or other fluent material being supplied from inside the roller
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/08—Machines
- B41F15/0831—Machines for printing webs
- B41F15/0836—Machines for printing webs by means of cylindrical screens or screens in the form of endless belts
- B41F15/084—Machines for printing webs by means of cylindrical screens or screens in the form of endless belts simultaneously printing on two sides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F15/00—Screen printers
- B41F15/14—Details
- B41F15/40—Inking units
- B41F15/42—Inking units comprising squeegees or doctors
-
- 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
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
Definitions
- the invention relates to a device for coating a moving material web on both sides, at least comprising a frame and one or more assemblies of rotary screen printing stencils arranged opposite each other on either side of the web, the material web to be coated being in contact with both rotary screen printing stencils, and a medium feed device set up inside each of the rotary screen printing stencils.
- a device for coating a moving material web on both sides at least comprising a frame and one or more assemblies of rotary screen printing stencils arranged opposite each other on either side of the web, the material web to be coated being in contact with both rotary screen printing stencils, and a medium feed device set up inside each of the rotary screen printing stencils.
- the above-mentioned publication describes a device of the above-mentioned type, in which a material is printed on both sides thereof with a pattern using screen printing stencils containing medium feed devices which in this case are in the form of squeegees.
- the substrate is preferably moved in the downward direction and, after leaving the contact line between the two opposite stencils, is guided through a drying device, such as a drying tunnel, which is arranged vertically.
- a drying device In the case of vertical movement of the medium to be printed, a drying device must follow the coating or printing position, in order to dry the coated or printed material, so that thereafter the material can be brought into contact with guide means such as, for example, rollers.
- the object of the present invention is to produce a device of the above-mentioned type which can be accommodated in buildings of normal size, and in particular of normal height.
- a device of the type mentioned in the preamble in that the device is equipped for conveying the material web to be coated essentially horizontally, and in each of the assemblies of rotary screen printing stencils at least one of the medium feed devices is of a closed type which is provided with a slit-shaped outlet aperture for the coating medium which is in contact with the inside wall of the rotary screen printing stencil in question.
- the medium feed device of the closed type will be located in the stencil of the assembly which is below the conveyed material web.
- a medium feed device of the closed type expediently mates with both stencils of an assembly of rotary screen printing stencils.
- the stencils of an assembly will lie below and above the conveyed material web and opposite each other, in such a way that the stencils of an assembly touch each other along an essentially horizontal line and the material web is in contact with the two stencils along said contact line.
- the slit-shaped outlet aperture of the two medium feed devices will be positioned in the same way relative to the earlier mentioned contact line, so that a full cover of the projections of said slit-type aperture on the substrate takes place.
- the medium feed device of the closed type described above is known per se from European Patent Application with publication number 0285217.
- Said medium feed device of the closed type which is known per se, excels through evenness of application, viewed in the widthwise direction of the substrate, and therefore in the lengthwise direction of the medium feed device.
- printing result is understood to mean coating layer thickness, coating density, colour depth, or definition and cover.
- each of the medium feed devices is provided with adjusting means, in order to prevent sagging of the medium feed device.
- the adjusting means comprise one or more pull bars which mate with the medium feed device body, and which through tightening give the medium feed device additional strength, and by means of which any sagging occurring can easily be compensated for when such cases arise.
- the invention also relates to a process for coating a material web in which a coating is first applied to both sides of the material web by means of one or more assemblies of rotary screen printing stencils arranged opposite each other on either side of the material web and the coating is subjected to one or more drying operations.
- the process indicated above is according to the invention characterized in that it is carried out by means of a device in which, prior to and during the drying, or each drying, a material web is conveyed essentially horizontally, and which is constructed in the manner described above according to the invention.
- the process according to the invention it is possible to obtain a substrate which is provided with a coating or printing on two sides, while the qualities of the coating or printing on two sides are of a predetermined relationship which can be adjusted relative to each other.
- the relationship can be such that the printing quality, such as, for example, the density, thickness, colour depth etc. is the same on both sides; it is also possible to make the properties of the coating or the printing on both sides of the substrate differ from each other by a fixed, preset value.
- the medium feed devices have flexible squeegee blades 6, 7, 8 and 9, the single aperture being formed by the medium outlet apertures 10 and 11, which are slit-shaped and rest against the inside of the stencils 2 and 3 which are in contact with the substrate 1 to be printed. Both medium feed devices are made identical in this case, so that for the further description of the medium feed devices a description of medium feed device 4 will suffice.
- the medium outlet slit 10 is the only aperture located in the medium collection space 15 which connects to a cavity 14.
- the medium is fed by means not shown in any further detail into the medium distribution spaces 12, from where said medium flows via the narrow channels 13 to the cavity 14 under the influence of a pressure generation device such as a pump connected to the medium feed device.
- the medium feed device in this case is a fully closed medium feed device which has only a medium outlet aperture 10 which rests against the inside of the stencil 2.
- excellent metering of pressure medium is achieved, said medium flowing via the outlet slit 10 through the holes of the stencil 2 used and coming to rest on the top surface of the horizontally conveyed substrate 1.
- the same operation takes place at the bottom side of the substrate by means of the stencil 3 placed below the substrate.
- the substrate has a conveyance speed which is essentially the same as the peripheral speeds of the stencils 2 and 3 used.
- a shut-off device will, of course, be present to shut off the medium feed device at the ends, and a shut-off device is also present to ensure a lateral boundary of the cavity 14 and the pressure medium collection space 15.
- the medium feed device is fixed in the device, in a manner not shown in any further detail, while the stencils and the drive thereof are also present in the device in a manner not shown in any further detail.
- each assembly of two stencils can expediently be followed by a drying device which ensures such drying that a new coating or pattern part can be printed again in a subsequent assembly.
- the device can also comprise only one assembly of stencils, following which the subsequent drying is directly the final drying.
- the drier used in conjunction with the device according to the invention will in general be a so-called float drier, i.e. a drier of the type in which during the drying operation the material to be dried floats on an arrangement of feed nozzles, through which heating medium such as warm air is fed in, in such quantities that no contact takes place between the still damp coated substrate and the above-mentioned nozzles. Any contact of the substrate with, for example, guide rollers can in this way be avoided until sufficient drying has taken place.
- float drier i.e. a drier of the type in which during the drying operation the material to be dried floats on an arrangement of feed nozzles, through which heating medium such as warm air is fed in, in such quantities that no contact takes place between the still damp coated substrate and the above-mentioned nozzles. Any contact of the substrate with, for example, guide rollers can in this way be avoided until sufficient drying has taken place.
- seamless metal rotary screen printing stencils will in general be used, for example nickel screen printing stencils in finenesses between 25 and 500 mesh (mesh in this case is the number of holes per linear inch) and thicknesses between 100 and 300 micrometres, but it is pointed out that finenesses deviating from these finenesses and greater or smaller thicknesses can also be used.
- the substrate to be printed in the form of a material web, can be in all kinds of forms, such as paper, fabric, plastic film, non-woven fabric etc.
- Fig. 2 indicates schematically that, in order to counteract sagging, a medium feed device can be provided with one or more pull bars 17, 18 and 19. Tightening the pull bars can compensate very accurately for any sagging which occurs, which occurs particularly in the case of long medium feed devices, i.e. in the case of great substrate widths, which means that very good evenness of printing is obtained.
- the squeegee blade 6 is provided at its end with a strip 16 of material with a low coefficient of friction, such as polythene or teflon. Such a strip serves to provide a good seal between the end of the squeegee blade 6 and the inside of the stencil, for the purpose of preventing the passage of printing medium at the end.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating Apparatus (AREA)
- Screen Printers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90200862T ATE96089T1 (de) | 1989-04-12 | 1990-04-09 | Vorrichtung fuer schoen- und wiederbeschichtung und verfahren zum beschichten einer materialbahn. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8900915A NL8900915A (nl) | 1989-04-12 | 1989-04-12 | Inrichting voor tweezijdig bekleden en werkwijze voor het bekleden van een materiaalbaan. |
NL8900915 | 1989-04-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0392625A1 true EP0392625A1 (de) | 1990-10-17 |
EP0392625B1 EP0392625B1 (de) | 1993-10-20 |
Family
ID=19854463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90200862A Expired - Lifetime EP0392625B1 (de) | 1989-04-12 | 1990-04-09 | Vorrichtung für Schön- und Wiederbeschichtung und Verfahren zum Beschichten einer Materialbahn |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0392625B1 (de) |
AT (1) | ATE96089T1 (de) |
DE (1) | DE69003984T2 (de) |
NL (1) | NL8900915A (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998038842A1 (de) * | 1997-02-25 | 1998-09-03 | P.A.C. Circuiti Stampati S.R.L. | Auftragsvorrichtung zum auftragen von lötstopp-lack auf beide seiten einer leiterplatte |
EP1057541A1 (de) * | 1999-06-04 | 2000-12-06 | Solipat Ag | Vorrichtung und Verfahren zum partiellen Auftragen einer Oberflächenbeschichtung und Warenbahn mit einer partiellen Oberflächenbeschichtung |
WO2001054907A1 (de) * | 2000-01-25 | 2001-08-02 | Koenig & Bauer Aktiengesellschaft | Bogendruckmaschine mit siebdruckzylinder |
US6374768B1 (en) * | 1998-10-16 | 2002-04-23 | Huntsman International Llc | Apparatus and process for bottom coating by extrusion |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102392583A (zh) * | 2011-10-20 | 2012-03-28 | 舍尔特中加(天津)钢木结构工程有限公司 | 防风沙防雨水轻型门 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR54838E (fr) * | 1946-10-29 | 1950-08-02 | Nouveau genre de machines à imprimer les tissus et similaires | |
FR1054407A (fr) * | 1952-02-09 | 1954-02-10 | Gillet Thaon Sa | Machine à imprimer les tissus double face |
CH395913A (de) * | 1960-03-04 | 1966-01-14 | Electrostatic Printing Corp | Verfahren zum elektrostatischen Bedrucken von Textilmaterial |
DE1947954A1 (de) * | 1968-09-25 | 1970-04-02 | Billiet Jan Maria Godfried Ren | Verfahren und entsprechende Maschine fuer das Bedrucken bzw. Faerben von Schicht- oder Textilmaterialien |
DE2061014A1 (de) * | 1970-12-11 | 1972-06-15 | Neodon Werke Helmut Sallinger | Verfahren zum Bedrucken von textilen Belaegen und Bahnen,insbesondere Teppichen,dadurch gekennzeichnet,dass durchlaessige Gewebe aus Metall oder geaetzte Metallfolien in Walzenform durch Abrollen Farbstoff auf den zu druckenden Belag auftragen... |
FR2272840A1 (en) * | 1974-05-30 | 1975-12-26 | Alsacienne Constr Meca | Screen printing press scraper holder - has tension rod counteracting bending loads caused by pressure against screen |
DE2638344A1 (de) * | 1976-01-14 | 1977-07-21 | Norton Co Ltd Sir James Farmer | Vertikale rotations-siebdruckmaschine |
EP0285217A1 (de) * | 1987-03-31 | 1988-10-05 | Stork Brabant B.V. | Einrichtung zum Verteilen eines Mediums auf einem Substrat, Verfahren zum Beschichten des Substrats mit dem Medium, mittels dieser Einrichtung beschichtetes Substrat |
-
1989
- 1989-04-12 NL NL8900915A patent/NL8900915A/nl not_active Application Discontinuation
-
1990
- 1990-04-09 EP EP90200862A patent/EP0392625B1/de not_active Expired - Lifetime
- 1990-04-09 AT AT90200862T patent/ATE96089T1/de active
- 1990-04-09 DE DE90200862T patent/DE69003984T2/de not_active Expired - Fee Related
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR54838E (fr) * | 1946-10-29 | 1950-08-02 | Nouveau genre de machines à imprimer les tissus et similaires | |
FR1054407A (fr) * | 1952-02-09 | 1954-02-10 | Gillet Thaon Sa | Machine à imprimer les tissus double face |
CH395913A (de) * | 1960-03-04 | 1966-01-14 | Electrostatic Printing Corp | Verfahren zum elektrostatischen Bedrucken von Textilmaterial |
DE1947954A1 (de) * | 1968-09-25 | 1970-04-02 | Billiet Jan Maria Godfried Ren | Verfahren und entsprechende Maschine fuer das Bedrucken bzw. Faerben von Schicht- oder Textilmaterialien |
DE2061014A1 (de) * | 1970-12-11 | 1972-06-15 | Neodon Werke Helmut Sallinger | Verfahren zum Bedrucken von textilen Belaegen und Bahnen,insbesondere Teppichen,dadurch gekennzeichnet,dass durchlaessige Gewebe aus Metall oder geaetzte Metallfolien in Walzenform durch Abrollen Farbstoff auf den zu druckenden Belag auftragen... |
FR2272840A1 (en) * | 1974-05-30 | 1975-12-26 | Alsacienne Constr Meca | Screen printing press scraper holder - has tension rod counteracting bending loads caused by pressure against screen |
DE2638344A1 (de) * | 1976-01-14 | 1977-07-21 | Norton Co Ltd Sir James Farmer | Vertikale rotations-siebdruckmaschine |
EP0285217A1 (de) * | 1987-03-31 | 1988-10-05 | Stork Brabant B.V. | Einrichtung zum Verteilen eines Mediums auf einem Substrat, Verfahren zum Beschichten des Substrats mit dem Medium, mittels dieser Einrichtung beschichtetes Substrat |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998038842A1 (de) * | 1997-02-25 | 1998-09-03 | P.A.C. Circuiti Stampati S.R.L. | Auftragsvorrichtung zum auftragen von lötstopp-lack auf beide seiten einer leiterplatte |
US6387181B1 (en) | 1997-02-25 | 2002-05-14 | Sandro Bezzetto | Coating device for coating solder resist on both sides of a printed circuit board |
US6374768B1 (en) * | 1998-10-16 | 2002-04-23 | Huntsman International Llc | Apparatus and process for bottom coating by extrusion |
EP1057541A1 (de) * | 1999-06-04 | 2000-12-06 | Solipat Ag | Vorrichtung und Verfahren zum partiellen Auftragen einer Oberflächenbeschichtung und Warenbahn mit einer partiellen Oberflächenbeschichtung |
WO2000074863A1 (de) * | 1999-06-04 | 2000-12-14 | Solipat Ag | Vorrichtung und verfahren zum partiellen auftragen einer oberflächenbeschichtung und atmungsaktive folie mit einer partiellen oberflächenbeschichtung |
EP1160016A3 (de) * | 1999-06-04 | 2002-08-28 | Solipat Ag | Vorrichtung und Verfahren zum partiellen Auftragen einer Oberflächenbeschichtung und atmungsaktive Folie mit einer partiellen Oberflächenbeschichtung |
US7329622B1 (en) * | 1999-06-04 | 2008-02-12 | Solipat Ag | Method and device for partially applying a surface coating and breathable film with such a partial surface coating |
CZ301060B6 (cs) * | 1999-06-04 | 2009-10-29 | Solipat Ag | Zarízení pro nanášení cástecného povrchového povlaku, zpusob nanášení cástecného povrchového povlaku, prodyšná, pro vodu nepropustná fólie a trívrstvá laminovaná plošná soustava |
WO2001054907A1 (de) * | 2000-01-25 | 2001-08-02 | Koenig & Bauer Aktiengesellschaft | Bogendruckmaschine mit siebdruckzylinder |
US6681690B2 (en) | 2000-01-25 | 2004-01-27 | Koenig & Bauer Aktiengesellschaft | Sheet-fed printing press with screen-printing cylinder |
Also Published As
Publication number | Publication date |
---|---|
EP0392625B1 (de) | 1993-10-20 |
ATE96089T1 (de) | 1993-11-15 |
NL8900915A (nl) | 1990-11-01 |
DE69003984T2 (de) | 1994-02-10 |
DE69003984D1 (de) | 1993-11-25 |
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