DE1696247A1 - Apparatus for the production of paper coated on both sides - Google Patents
Apparatus for the production of paper coated on both sidesInfo
- Publication number
- DE1696247A1 DE1696247A1 DE19671696247 DE1696247A DE1696247A1 DE 1696247 A1 DE1696247 A1 DE 1696247A1 DE 19671696247 DE19671696247 DE 19671696247 DE 1696247 A DE1696247 A DE 1696247A DE 1696247 A1 DE1696247 A1 DE 1696247A1
- Authority
- DE
- Germany
- Prior art keywords
- roller
- rollers
- additional
- contact point
- additional roller
- 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.)
- Pending
Links
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
- D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
- D21H23/42—Paper being at least partly surrounded by the material on both sides
-
- 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
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
-
- 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
Landscapes
- Paper (AREA)
Description
Patentanwälte
DR.M. SCHNEIDERPatent attorneys
DR.M. CUTTER
DR. A. EITEL Nürnberg, den 18. Dezember 1967DR. A. EITEL Nuremberg, December 18, 1967
KCZOWALLA .KCZOWALLA.
NuriiDerg, Köüigstr. 1 -NuriiDerg, Köüigstr. 1 -
Papirindustriens Forskningsinstitutt Oslo, Norwegen.Papirindustriens Forskningsinstitutt Oslo, Norway.
Erfinden E. BöhmerInvent E. Böhmer
T. AarefjördT. Aarefjörd
Apparatur zur Herstellung von doppelseitig bestrichenem PapierApparatus for the production of double-sided coated paper
Die Erfindung umfasst ein mechanisches System zur Herstellung von doppelseitig bestrichenem Papier» Mehrere unterschiedliche Systeme sind bereits vorgeschlagen und in Fabrikationsmasstab verwendet worden, und eine der einfacheren Vorrichtungen ist die Leimpresse, die auch in der Figur F gezeigt ist. Die Papierbahn wird hier durch einen Klemmpunkt zwischen zweier Walzen gefordert, wobei die eine oft aus Stahl hergestellt und die andere mit Hartgummi belegt ist. Die untere Walze kann in einem Behalter mit Bestreichungsmasse rotieren, wobei die Masse durch die Drehung der Walze auf die Unterseite des Papieres übertragen wird, oder die Beatreichungsmasse kann, wie bei der Oberseite des Papieres entweder auf die Walzenoberflache, oder direkt auf die Papierbahn gespritzt werden. Die Walzen der Leimpresse können auch- in unter-The invention comprises a mechanical system for the production of paper coated on both sides » Several different systems have been proposed and has been used on a factory scale, and one of the simpler devices is the size press, which is also shown in FIG. The paper web will Required here by a pinch point between two rollers, one often made of steel and the one other is covered with hard rubber. The lower roller can rotate in a container with coating material, whereby the mass by rotating the roller on the underside of the paper is transferred, or the ventilation mass can, as with the upper side of the paper, either be sprayed onto the roller surface or directly onto the paper web will. The rollers of the size press can also be used in different
109847/U06109847 / U06
BAD ORIGINALBATH ORIGINAL
ea? j?ea? j?
schiedlichen Winkeln zwischen O und $(P vorgesehen sein, wo 90° eine lotrechte Forderung der Papierbahn bedeutet.Different angles between O and $ (P should be provided, where 90 ° means a perpendicular requirement of the paper web.
Erfahrungsgemäss kann eine Leimpresse bei niedriger Geschwindigkeit oder bei geringer aufgetragener Menge eine befriedigende Bestreichungsechicht ergeben. Falls die Geschwindigkeit oder die Viskosität dar Masse erhöht wird, tritt jedoch oft ein "orange peel" genanntes Muster auf, welches sehr ungunstig ist, da es schlechte Druckergebnisse mit sich führt. Diese Musterung ist auf Kavitations- und Visko-elastische Phänomene zurückzuführen, die an der Auslaufsei te des Walzenkontaktpunktes auftreten, und die Musterung nimmt mit zunehmender Viskosität und demzufolge höherer Kohasion der Bestreichungsmasse zu. Auch die Geometrie des Kontaktpunktes ist von Bedeutung, und es ist bekannt, dass der Walzendurchmesser und Abnahmewxnkel eine Rolle für das Ergebnis spielt. .Experience has shown that a size press can with result in a satisfactory coating layer at low speed or with a small amount applied. If the speed or viscosity represents Mass is increased, but often an "orange peel" occurs called pattern, which is very unfavorable because it leads to poor print results. This pattern is due to cavitation and visco-elastic phenomena, which occur at the outlet side of the roller contact point, and the pattern increases with increasing viscosity and consequently higher cohesion of the Coating mass to. The geometry of the contact point is also important and it is known that the Roll diameter and take-off angle play a role in the result. .
Zweck der Erfindung ist die erwähnte Musterung zu eliminieren. Dies wird derart erzielt, dass die erwähnten Leimpresswalzen ausser eingriff mit einander vorgesehen werden und dass eine zusätzliche Walze mit wesentlich geringerem Durchmesser als die beiden Hauptwalzen, vorteilhaft mit einem Durchmesser von l/j bis I/5 derselben, zwischen denselben vorgesehen wird, wobei iie Papierbahn zwischen einer der Hauptwalzen und der zusätzliohen Walze durch den Kontaktpunkt der beiden Walzen gefordert wird. Derart wird erzielt, dass die PapierbahnThe purpose of the invention is to eliminate the pattern mentioned. This is achieved in such a way that the mentioned size press rolls out of engagement with each other be provided and that an additional roller with significantly smaller diameter than the two main rollers, advantageously with a diameter of 1 / j to 1/5 the same, is provided between the same, iie Paper web between one of the main rollers and the additional one Roller is required by the contact point of the two rollers. In this way it is achieved that the paper web
10984 7/UO610984 7 / UO6
MT*MT *
.bei niedrigem Krümmungsradius sowohl an der der Haupt«· walze zugewendeten als auch an der der kleineren Zwischenwalze zugewendeten Seite τοη dem Kontaktpunkt weggefordert werden kann. Die Papierbahn soll vorzugsweise der kleineren Zwischenwalze folgen, obwohl die Erfindung auch andere Auslaufmethoden betrifft, wie in der Figur"mit gestrichelten Linien angedeutet, Sowohl die Walze Ä als auch die Walze B kann eine herkömmliche Leimpresswalze sein, was den Werkstoff und die Abmessungen betrifft. Es können z.B. zwei Walzen mit Durohmessern von 50 cm verwendet werden, wobei die eine aus Stahl besteht, während die andere eine mit Hartgummi belegte Stahlwalze ist. Auch andere geeignete Werkstoffe können verwendet werden. Die obere Walze A kann entweder mit glatter oder gerillter Oberflache gestaltet sein..with a small radius of curvature both at the main «· roller facing as well as on that of the smaller one Intermediate roll facing side τοη the contact point can be demanded away. The paper web should preferably follow the smaller intermediate roll, although the Invention also relates to other discontinuation methods, as in of the figure "indicated with dashed lines, both the roller Ä as well as the roller B may be a conventional one Size press roller, what the material and the dimensions regards. For example, two rollers with durometer knives can be used of 50 cm can be used, one of which is made of steel while the other covered one with hard rubber Steel roller is. Other suitable materials can also be used. The upper roller A can either with be designed smooth or grooved surface.
Die Mittelwalze C der Konstruktion in Fig. kann aus Hartgummi, Stahl oder einem anderen zweckmassigen Werkstoff bestehen. Die Walzenabmessungen können von R 15 bis E 3 variieren, haben aber vorzugsweise einen Durchmesser von 2-6··. Der Abstand d von der Mitte der Walze C zur Mittellinie zwischen den Walzen A und B soll der folgenden Forderung entsprechen! 0 ^ d = 0,8 ^2Rr + x2'The center roller C of the construction in Fig. Can be made of hard rubber, steel or another suitable material. The roller dimensions can vary from R 15 to E 3, but preferably have a diameter of 2-6 ··. The distance d from the center of roller C to the center line between rollers A and B should meet the following requirement! 0 ^ d = 0.8 ^ 2Rr + x 2 '
Die Mittelwalze kann auch an der Einlaufsei te zum Kontaktpunkt vorgesehen werden, und der obenerwähnteThe middle roller can also te on the inlet side to be provided to the contact point, and the above-mentioned
109847/1406109847/1406
Abstand soll in diesem Falle folgender Forderung entsprechen: In this case, the distance should correspond to the following requirement:
0 - d ^ 0,6 \ 2Rr + r2 0 - d ^ 0.6 \ 2Rr + r 2
Die Mittelwalze soll waagerecht in unterschiedliche Positionen versetzbar sein, in Abhängigkeit von der Geschwindigkeit, Bahnführung und Zusammensetzung der Bestreiohungsmasseo Wie aus Fig. 2 hervorgeht, sollen die Walzen A und B in der gleichen Richtung rotieren, ft die von der Maschinenaufstellung bestimmt ist, wahrend die Walze C in entgegengesetzter Richtung rotiert.The central roller should be horizontally displaceable in different positions, depending on on the speed, web routing and composition of the distribution mass o As can be seen from Fig. 2, should the rollers A and B rotate in the same direction as determined by the machine installation the roller C rotates in the opposite direction.
Die Erfindung umfasst auch die alternative Gestaltung, die in Fig. 2 gezeigt ist. Diese Gestaltung kann in den Fallen zur Verwendung kommen, wo man den Abstand zwischen den Walzen A und B nicht erhohen kann. Als S Stützwalze fur die kleinere Walze C ist daher eine grossere Stützwalze mit Abmessungen derselben Grossenordnung wie diejenigen von A und B vorgesehen. w Die Bedingungen für die Walzengrosse gelten auch hier· Die Lokalisierung der kleineren Walze soll entlang des Umkreises der Walze A von 0 bis 120° von dem Kontaktpunkt zwischen A und B variiert werden können»The invention also includes the alternative design shown in FIG. This design can be used in cases where the distance between rollers A and B cannot be increased. A larger back-up roll with dimensions of the same order of magnitude as those of A and B is therefore provided as the back-up roll for the smaller roll C. w The conditions for the roller size also apply here · The location of the smaller roller should be able to be varied along the circumference of roller A from 0 to 120 ° from the contact point between A and B »
109847/1406109847/1406
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO166094A NO115645B (en) | 1966-12-21 | 1966-12-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1696247A1 true DE1696247A1 (en) | 1971-11-18 |
Family
ID=19909860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19671696247 Pending DE1696247A1 (en) | 1966-12-21 | 1967-12-20 | Apparatus for the production of paper coated on both sides |
Country Status (3)
Country | Link |
---|---|
US (1) | US3499419A (en) |
DE (1) | DE1696247A1 (en) |
NO (1) | NO115645B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE35830T1 (en) * | 1983-10-07 | 1988-08-15 | Triatex International | DEVICE AND METHOD FOR APPLYING CONTROLLED QUANTITIES OF LIQUID TO AN ABSORBABLE WEB OF MATERIAL. |
US6183079B1 (en) | 1998-06-11 | 2001-02-06 | Lexmark International, Inc. | Coating apparatus for use in an ink jet printer |
US6706118B2 (en) * | 2002-02-26 | 2004-03-16 | Lexmark International, Inc. | Apparatus and method of using motion control to improve coatweight uniformity in intermittent coaters in an inkjet printer |
US7111916B2 (en) * | 2002-02-27 | 2006-09-26 | Lexmark International, Inc. | System and method of fluid level regulating for a media coating system |
US6955721B2 (en) * | 2002-02-28 | 2005-10-18 | Lexmark International, Inc. | System and method of coating print media in an inkjet printer |
DE102012207920A1 (en) * | 2012-05-11 | 2013-11-14 | Trützschler Nonwovens Gmbh | Foulard for applying a binder to a pile |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2041419A (en) * | 1929-08-01 | 1936-05-19 | Patent & Licensing Corp | Apparatus for making roofing |
US1989036A (en) * | 1932-07-18 | 1935-01-22 | Champion Coated Paper Company | Paper coating |
US2406057A (en) * | 1944-11-30 | 1946-08-20 | Minnesota & Ontario Paper Co | Coating apparatus |
US2593149A (en) * | 1946-10-17 | 1952-04-15 | Champion Paper & Fibre Co | Apparatus for embossing paper |
US2676537A (en) * | 1950-10-20 | 1954-04-27 | Kanitz Georges | Intaglio printing machine |
US2977247A (en) * | 1958-04-08 | 1961-03-28 | Packaging Corp America | Adhesive applicator means particularly adapted for corrugating machines |
FR1208995A (en) * | 1958-12-11 | 1960-02-26 | Halley & Sons Ltd James | Improvements in methods and apparatus for applying wax to the surface of a continuously moving material |
US3017828A (en) * | 1959-03-12 | 1962-01-23 | Miehle Goss Dexter Inc | Doctor blade mechanism |
-
1966
- 1966-12-21 NO NO166094A patent/NO115645B/no unknown
-
1967
- 1967-12-20 DE DE19671696247 patent/DE1696247A1/en active Pending
- 1967-12-20 US US692208A patent/US3499419A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3499419A (en) | 1970-03-10 |
NO115645B (en) | 1968-11-04 |
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