US3910186A - Ink supply apparatus for intaglio printing press - Google Patents
Ink supply apparatus for intaglio printing press Download PDFInfo
- Publication number
- US3910186A US3910186A US406551A US40655173A US3910186A US 3910186 A US3910186 A US 3910186A US 406551 A US406551 A US 406551A US 40655173 A US40655173 A US 40655173A US 3910186 A US3910186 A US 3910186A
- Authority
- US
- United States
- Prior art keywords
- plate
- ink
- roller
- layer
- inking 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F9/00—Rotary intaglio printing presses
- B41F9/06—Details
- B41F9/061—Inking devices
- B41F9/063—Using inking rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/26—Construction of inking rollers
-
- 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
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
Definitions
- This ink supply apparatus includes a train of ink transfer rollers.
- One of the rollers comprises a hard core and an outer stratum of multiple layers of cheesecloth wound on the core. This cheesecloth roller runs between two steel surfaced rollers and compressively engages them. It produces a smooth coating of ink on the downstream one of the two hard surfaced rollers.
- the roller nearest the plate cylinder is adapted for use with an intaglio press, which commonly has at least one plate on the cylinder with at least one recess between circumferentially spaced plate ends.
- the circumference of the inking roller which engages the plate is made slightly greater than the sum of the circumferential lengths of the plate and the recess, for the purpose of providing a coating of ink on the plate that is slightly heavier along the leading margin of the plate than at other parts of the plate.
- This invention is directed to-a solution of the problem of providing an intaglio printing press which will produce a uniform image density from all parts of the printing plate. Certain features are useful with presses generally, and others areuseful particularly with intaglio presses of the type using flexible plates clamped at their ends in recesses in the plate cylinder.
- One of the features comprises a train of ink supply rollers including an intermediate roller having a hard core covered with a rubber layer and an outer stratum of multiple layers of cloth, preferably cheesecloth.
- Such a roller produces a very smooth and uniform layer of ink on the transfer roller with which it runs in contact. Furthermore, the cheesecloth stratum on the roller is easily replaced when worn, and its working surface can be renewed by simply peeling off one or more layers of cloth.
- a further feature of the invention relates to a method of making such a roller, including the steps of cutting away bands of the'outer stratum when it is desired'to transfer ink to one or more circumferential bands on the plate rather than covering the entire plate with an ink.
- Another feature of the apparatus is concerned with the relationship between the circumference of the inking roller which runs in contact with the plate and the sum of the circumferential length of the plate and the circumferential length of the recess between the ends of the plate.
- the inking roller circumference must be slightly greater than the sum of the circumferential lengths of one plate and one recess to provide for wear compensation, and also to ensure a heavier layer of ink on the leading margin of the plate than at other parts thereof.
- the leading margin of the printing plate encounters fresh wiping material when it meets the wiping web, while the other parts of the plate are wiped by areas of the wiping web which have previously been used and already have some ink absorbed therein.
- the recessed image areas in the leading margin of the plate therefore, have more ink removed from them than the recessed image areas in the other parts of the plate.
- This axial band of ink is distributed to some extent circumfierentially of the plate by theaction of a hard surfaced roller preceding the inking roller in the inking train, which is effective to spread the heavy layer of ink peripherally of the inking roller.
- a heavy band is desirable in order to secure a uniform image density in the printed sheets.
- cheesecloth is especially effective in distributing a smooth layer of ink. on a roller of an inking train. Furthermore, it is relatively inexpensive and easily replaced when worn. It is also easy to cut away parts of the cheesecloth stratum in order to spread the ink on circumferential bands only of the plate.
- FIG. 1 is a perspective, somewhat diagrammatic view of an inking train for an intaglio press embodying the invention.
- FIG. 2 is a plan view of a cheesecloth roller employed in the inking train of FIG. 1.
- FIG. 3 is a sectional view taken on the line 33 of FIG. 2.
- FIG. 4 is a diagrammatic sectional view through the plate cylinder of an intaglio press carrying a single plate.
- FIG. 5 is a diagrammatic sectional view similar to FIG. 4 but showing an intaglio press cylinder carrying two plates.
- FIG. 6 is a fragmentary, somewhat diagrammatic view illustrating part of the inking train for a two plate press, and illustrating the desired dimensional relationship between the circumference of the inking cylinder and the plate cylinder.
- FIG. 1 shows an intaglio press having a plate cylinder 1 carrying two plates 2 and 3. Each end of each plate is held within a recess M by means of suitable clamping mechanism (not shown) which may be the same as that illustrated in the pending application of Ivaldo Gazzola et al., Ser. No. 298,376, filed Oct. 17, 1972, now U.S. Pat. No. 3,828,672, issued Aug. 13, 1974.
- an inking roller 4 having a peripheral layer 4a of yieldable material, e.g., synthetic rubber.
- Ink is supplied to the inking roller 4 from an ink reservoir 5 which may be the same as that shown in our copending application, Ser. No. 410,987, filed Oct. 30, 1973.
- the ink reservoir 5 includes a hard surfaced ink supply roller 6 which cooperates with a roller 7 having an outer stratum 7a of multiple layers of cloth, e.g., cheesecloth or equivalent material wound on a layer 712 of rubber which covers a hard core 70, usually of steel.
- the roller 7 runs in compressive contact with roller 6 and another hard surfaced roller 8 which in turn compressively engages the circumference of the roller 4.
- the compressive engagement is indicated in a drawing by a slight flattening of the outer layer 4a of roller 4 at the points where it engages the roller 8 and the plate cylinder 1.
- the roller 7 comprises a hard core 70 covered by a layer 7b of compressible material.
- a strip 13 of cloth, preferably cheesecloth, is applied to the layer 712 by fastening one end of the strip with a suitable weak adhesive and then winding the strip around the core 71) a multiplicity of times, to form an outer stratum 7a of cheesecloth.
- the cheesecloth quickly becomes thoroughly impregnated with ink and constitutes an extremely flexible reservoir of ink. It is effective to take up surplus ink from any parts of the contacting rollers 6 and 8 which have such a surplus and it also is effective to deposit ink on any parts of those rollers where the ink supply is deficient. The result is that the ink is spread smoothly across the entire surface of the roller 8, or those portions thereof which contact the cheesecloth stratum 7a.
- the cheesecloth stratum 7a may be cut into bands after it is applied to the roller 7 by means of a sharp knife or razor blade, simply by turning the roller while holding the blade in contact with the cheesecloth.
- the portions of the cheesecloth between the bands which it is desired to retain are easily removed by tearing away, leaving the stratum 7a separated into sections according to the positions of the bands of the plates 2 and 3 which are to be inked.
- roller 7 is held in compressive engagement with i train, such as that shown diagrammatically in FIG. 6, so
- the inking roller 4 is driven only by its contacts with cylinder 1 and roller 8.
- FIG. 4 shows a plate cylinder 14 carrying a single plate 15 whose ends are received in a recess 14a.
- FIG. 5 illustrates diagrammatically the structure of the plate cylinder 1 and the plates 2 and 3, showing that there are two recesses la, each of which receives two plate ends.
- FIG. 6 This figure shows diagrammatically the plate cylinder 1 and the plates 2 and 3 mounted thereon and cooperating with the inking cylinder 4 having an outer layer 4a of resilient material.
- the circumferential length of the periphery of layer 4a should be slightly greater than the sum of the circumferential length of one of the plates 2 and 3 and the circumferential length of one of the gaps la.
- the term circumferential length of a plate means that dimension indicated at 21 in FIG. 6, i.e., the circumferential dimension of the part of the plate which engages the inking roller 4.
- circumferential dimension of a recess as used in this specification, means the circumferential dimension between the points near the ends of the plates 2 and 3 where those plates are no longer contacted by the roller 4. This dimension is illustrated at 22 in FIG. 6.
- a wiping apparatus 23 which may be of the paper web type as shown in our copending application Ser. No. 372,087, filed June 21, 1973.
- the wiping apparatus 23 includes a pad 24 and a paper web 25 which is driven over the pad and between the pad and the printing plates 2 and 3.
- the web 25 is advanced intermittently, each time that a gap 1a passes the pad 24. It may be seen that the fresh part of the wiping paper web 25 is engaged by the leading margins of the plates 2 and 3.
- An area on the inking roller 4 which comes opposite a gap 1a retains the ink previously applied by contact with roller 8, and has a second layer deposited on it at its next contact with the roller 8.
- the roller 8 spreads this double layer somewhat backwardly (i.e., clockwise in FIG. 6) along the surface of the inking roller 4.
- each area of roller 4 carrying a double layer is advanced during each revolution so that it encounters and transfers its double layer of ink to the leading margin of one of the plates 2 and 3.
- the function of the wiping web is to remove all ink from the smooth, non-image areas of the plate. Since the web wipes the entire plate, it also removes some of the ink from the recessed image areas of the plate.
- the fresh web material encounters the leading margin of the plate and is more effective in removing ink from that margin, so that the image areas in that margin have less ink remaining in them after passing the wiping web than the image areas in the other parts of the plate.
- the image printed by the image areas in that margin are lighter, i.e., less dense, than the images printed by the other parts of the plate.
- the double layer of ink deposited on the leading margin by the roller 4 compensates for the uneven removal of ink by the fresh web and results in a uniform image density in all parts of the plate.
- the optimum circumference for the inking roller 4 is always slightly greater than the circumferential length of one plate plus the circumferential length of one gap.
- the slightly greater distance is not critical, and may include a small amount to allow for wear of the yieldable outer layer 40. It may be large enough to permit turning down a worn roller to present a new smooth surface to replace a worn one.
- Ink supply apparatus for a printing press includa. an inking roller for transferring ink to a printing surface on the press;
- an ink supply roller for receiving ink from an ink reservoir
- c. means for transferring ink from the supply roller to the inking roller
- Ink supply apparatus for a printing press including:
- an inking roller for transferring ink to a printing surface on the press
- an ink supply roller for receiving ink from an ink reservoir
- An intaglio press including:
- a plate cylinder carrying at least one plate and having at least one recess between circumferentially spaced plate ends;
- b. ink supply apparatus including:
- c. plate wiping apparatus including:
- said roller having a circumference slightly greater than the sum of the circumferential lengths of one plate and one recess, so that the inking roller is effective to apply a heavier layer of ink to the leading margin than to other parts of the plate;
- plate wiping apparatus including:
- An intaglio press including: I I I a. a plate cylinder carrying at least one plate and having at least one recess between circumferentially spaced plate ends;
- b. ink supply apparatus including:
- said inking roller having a circumference slightly greater than the sum of the circumferential lengths of the plate and the recess, so that the inking roller is effective to apply a heavier layer of ink to the leading margin than to other parts of the plate;
- an ink transfer roller comprising a core, a layer of compressible material covering the core, and an outer stratum of multiple layers of cloth wound on the layer of compressible material;
- an inking train including the inking roller, the
- c. plate wiping apparatus including:
Abstract
Description
Claims (28)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US406551A US3910186A (en) | 1973-10-15 | 1973-10-15 | Ink supply apparatus for intaglio printing press |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US406551A US3910186A (en) | 1973-10-15 | 1973-10-15 | Ink supply apparatus for intaglio printing press |
Publications (1)
Publication Number | Publication Date |
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US3910186A true US3910186A (en) | 1975-10-07 |
Family
ID=23608464
Family Applications (1)
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US406551A Expired - Lifetime US3910186A (en) | 1973-10-15 | 1973-10-15 | Ink supply apparatus for intaglio printing press |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0027134A1 (en) * | 1979-04-23 | 1981-04-22 | Western Electric Co | Method for distributing a uniform coating on a surface. |
US4294187A (en) * | 1978-04-27 | 1981-10-13 | Champion International Corporation | Applicator for direct roll coating |
US4349589A (en) * | 1979-04-23 | 1982-09-14 | Western Electric Co., Inc. | Method for distributing liquid over a surface |
US4394431A (en) * | 1978-12-12 | 1983-07-19 | Canon Kabushiki Kaisha | Method for developing an electrostatic latent image with a liquid developer |
US4402267A (en) * | 1981-03-11 | 1983-09-06 | Printing Research Corporation | Method and apparatus for handling printed sheet material |
US4403384A (en) * | 1980-06-05 | 1983-09-13 | Champion International Corporation | Applicator for direct roll coating |
US4682543A (en) * | 1985-12-09 | 1987-07-28 | Am International, Inc. | Ink or moisture roller for duplicating machines |
EP0244702A2 (en) * | 1986-04-30 | 1987-11-11 | Jürgen K. Keck | Varnishing device |
US5009158A (en) * | 1989-07-08 | 1991-04-23 | Man Roland Druckmaschinen Ag | Offset printing machine system |
US5134936A (en) * | 1989-11-18 | 1992-08-04 | Man Roland Druckmaschinen Ag | Set-up method for a printing system, and resulting printing system |
EP0594016A1 (en) * | 1992-10-22 | 1994-04-27 | Felix Böttcher GmbH & Co. | Method for transferring a liquid from a solid to another solid and device for performing such a method |
US5415098A (en) * | 1994-01-18 | 1995-05-16 | Ward; Donald A. | Method and apparatus for handling sheet material using ridged netting |
US5842412A (en) * | 1997-03-07 | 1998-12-01 | Bba Nonwovens Simpsonville, Inc. | Anti-marking covering for printing press transfer cylinder |
US5845574A (en) * | 1996-07-16 | 1998-12-08 | Man Roland Druckmaschinen Ag | Ink transport roller for the inking unit of a web fed rotary printing machine and process for its production |
US20060260486A1 (en) * | 2005-05-19 | 2006-11-23 | Komori Corporation | Ink fountain device |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1498180A (en) * | 1921-07-09 | 1924-06-17 | Ideal Roller & Mfg Co | Roller |
US1576293A (en) * | 1924-04-18 | 1926-03-09 | American Bank Note Co | Rotary web undersurface printing machine |
US2065535A (en) * | 1933-11-06 | 1936-12-29 | Addressograph Multigraph | Planographic printing machine |
US2530388A (en) * | 1947-11-05 | 1950-11-21 | Ditto Inc | Moistening roller for duplicating machines |
US2584724A (en) * | 1949-09-10 | 1952-02-05 | K R Proctor | Paint applicator |
US2988989A (en) * | 1958-08-04 | 1961-06-20 | Earl A Crawford | Intaglio dry offset printing press |
US2991210A (en) * | 1959-07-16 | 1961-07-04 | Smith Corp A O | Method of making a reinforced plastic vessel with an integral head |
US3242554A (en) * | 1963-12-23 | 1966-03-29 | Minnesota Mining & Mfg | Dampening roll cover |
US3376813A (en) * | 1964-11-21 | 1968-04-09 | Telefonbau & Normalzeit Gmbh | Porous printing-ink-containing roller for inking printing plates |
-
1973
- 1973-10-15 US US406551A patent/US3910186A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1498180A (en) * | 1921-07-09 | 1924-06-17 | Ideal Roller & Mfg Co | Roller |
US1576293A (en) * | 1924-04-18 | 1926-03-09 | American Bank Note Co | Rotary web undersurface printing machine |
US2065535A (en) * | 1933-11-06 | 1936-12-29 | Addressograph Multigraph | Planographic printing machine |
US2530388A (en) * | 1947-11-05 | 1950-11-21 | Ditto Inc | Moistening roller for duplicating machines |
US2584724A (en) * | 1949-09-10 | 1952-02-05 | K R Proctor | Paint applicator |
US2988989A (en) * | 1958-08-04 | 1961-06-20 | Earl A Crawford | Intaglio dry offset printing press |
US2991210A (en) * | 1959-07-16 | 1961-07-04 | Smith Corp A O | Method of making a reinforced plastic vessel with an integral head |
US3242554A (en) * | 1963-12-23 | 1966-03-29 | Minnesota Mining & Mfg | Dampening roll cover |
US3376813A (en) * | 1964-11-21 | 1968-04-09 | Telefonbau & Normalzeit Gmbh | Porous printing-ink-containing roller for inking printing plates |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4294187A (en) * | 1978-04-27 | 1981-10-13 | Champion International Corporation | Applicator for direct roll coating |
US4394431A (en) * | 1978-12-12 | 1983-07-19 | Canon Kabushiki Kaisha | Method for developing an electrostatic latent image with a liquid developer |
EP0027134A1 (en) * | 1979-04-23 | 1981-04-22 | Western Electric Co | Method for distributing a uniform coating on a surface. |
US4269138A (en) * | 1979-04-23 | 1981-05-26 | Western Electric Company, Inc. | Apparatus for distributing liquid over a surface |
US4349589A (en) * | 1979-04-23 | 1982-09-14 | Western Electric Co., Inc. | Method for distributing liquid over a surface |
EP0027134B1 (en) * | 1979-04-23 | 1985-01-09 | Western Electric Company, Incorporated | Method for distributing a uniform coating on a surface |
US4403384A (en) * | 1980-06-05 | 1983-09-13 | Champion International Corporation | Applicator for direct roll coating |
US4402267A (en) * | 1981-03-11 | 1983-09-06 | Printing Research Corporation | Method and apparatus for handling printed sheet material |
US4682543A (en) * | 1985-12-09 | 1987-07-28 | Am International, Inc. | Ink or moisture roller for duplicating machines |
EP0244702A3 (en) * | 1986-04-30 | 1989-03-15 | Jurgen K. Keck | Varnishing device for attachment to a printing machine |
EP0244702A2 (en) * | 1986-04-30 | 1987-11-11 | Jürgen K. Keck | Varnishing device |
US5009158A (en) * | 1989-07-08 | 1991-04-23 | Man Roland Druckmaschinen Ag | Offset printing machine system |
US5134936A (en) * | 1989-11-18 | 1992-08-04 | Man Roland Druckmaschinen Ag | Set-up method for a printing system, and resulting printing system |
EP0594016A1 (en) * | 1992-10-22 | 1994-04-27 | Felix Böttcher GmbH & Co. | Method for transferring a liquid from a solid to another solid and device for performing such a method |
US5415098A (en) * | 1994-01-18 | 1995-05-16 | Ward; Donald A. | Method and apparatus for handling sheet material using ridged netting |
US5845574A (en) * | 1996-07-16 | 1998-12-08 | Man Roland Druckmaschinen Ag | Ink transport roller for the inking unit of a web fed rotary printing machine and process for its production |
US5842412A (en) * | 1997-03-07 | 1998-12-01 | Bba Nonwovens Simpsonville, Inc. | Anti-marking covering for printing press transfer cylinder |
US20060260486A1 (en) * | 2005-05-19 | 2006-11-23 | Komori Corporation | Ink fountain device |
JP2006321129A (en) * | 2005-05-19 | 2006-11-30 | Komori Corp | Ink fountain device |
EP1724115A3 (en) * | 2005-05-19 | 2007-03-28 | Komori Corporation | Ink fountain device |
US7395758B2 (en) | 2005-05-19 | 2008-07-08 | Komori Corporation | Ink fountain device with adjustable ink dams and adjustable fountain roller |
CN100457454C (en) * | 2005-05-19 | 2009-02-04 | 小森公司 | Ink fountain device |
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