EP0236105A2 - Rouleaux d'encrage pour l'impression polychrone - Google Patents
Rouleaux d'encrage pour l'impression polychrone Download PDFInfo
- Publication number
- EP0236105A2 EP0236105A2 EP87301789A EP87301789A EP0236105A2 EP 0236105 A2 EP0236105 A2 EP 0236105A2 EP 87301789 A EP87301789 A EP 87301789A EP 87301789 A EP87301789 A EP 87301789A EP 0236105 A2 EP0236105 A2 EP 0236105A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- ink
- reservoir
- ink transfer
- segment
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/18—Inking arrangements or devices for inking selected parts of printing formes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/10—Applications of feed or duct rollers
Definitions
- This invention relates to a method and apparatus for the printing of discrete areas of colour on a printing medium, for example, a paper sheet.
- the invention can be applied in any situation where the printing of discrete areas of different colours is required.
- the invention is particularly, but not exclusively, applicable to the colour printing of paint colour charts incorporating a plurality of spaced areas, usually rectangular, each of a different colour or shape and which can be used for the purpose of selecting a desired colour scheme.
- Such discrete areas on a paint colour chart are commonly referred to as "colour chips”.
- An object of the present invention is to produce paint colour charts incorporating colour chips by lithographic means.
- a common lithographic colour printing process involves the provision of a reservoir or duct which is adapted to contain coloured ink.
- ink as used hereinafter and in the claims is used to include any coloured pigment suitable for printing purposes.
- the ink is transmitted from the reservoir to an elongated cylindrical ink transfer roller or rollers which transfer ink of the colour contained in the reservoir to a printing station e.g. a plate having a predetermined image.
- the image is then transferred from the plate to a rubber-coated printing blanket, frequently in the form of a cylinder.
- the image is transferred from the rubber blanket roller to a paper sheet. If more than one colour is required on the finished image then more than one pass of the paper sheet is required. In this way multi-coloured images can be built up.
- colour printing apparatus comprising a reservoir for printing or the like and at least one ink transfer roller for taking up ink from the reservoir for subsequent passage to a printing station at which the printing ink is applied to a medium in a predetermined pattern characterised in that said reservoir is adapted to contain a plurality of colours or shades of printing ink, and means is provided for making axial positional adjustment to a surface of said ink transfer roller whereby ink of a selected colour or shade can be taken up by said ink transfer roller.
- each segment is in the form of a metallic roller having an outer rubber covering thereon.
- an ink transfer roller having an ink transfer surface for receiving ink from an ink supply, characterised in that said ink transfer surface is adapted to be positionally adjustable in an axial direction whereby ink from more than one source can be selectively transferred by said roller.
- a method of printing discrete areas of differing colour or shade on a printing medium comprising transferring printing ink or the like from an ink reservoir to a printing station through the intermediary of an ink transfer roller or rollers characterised in that the method comprises providing an ink reservoir with means for containing a plurality of colours or shades of printing ink; locating an ink transfer roller adjacent said reservoir with an axially positionable surface of said ink transfer roller in ink take-up relationship with said reservoir whereby ink of a selected colour or shade can be taken up by said ink transfer roller; applying ink from said surface to a first area of the medium to be printed; and subsequently repositioning said ink transfer surface of said roller at a different axial location and applying ink therefrom to a second area of said medium and spaced from said first area.
- a known form of colour printing apparatus comprising a main paper-receiving cylinder 10 which is mounted in operative relationship with a pair of rubber blanket cylinders 11.
- the blanket roller cylinders 11 are arranged to co-operate with plate printing cylinders 12.
- the plate cylinders 12 receive ink from ink reservoirs or ducts 13 through a plurality of ink treatment cylinders indicated generally by the reference numeral 14.
- Each batch of ink treatment rollers 14 is made up of a series of (a) ink transfer rollers, (b) oscillating rollers for contacting the ink on the ink transfer rollers and breaking down the pigment of ink carried thereby, and (c) rider or back-up rollers serving to space the various ink transfer rollers from each other.
- the ink transfer rollers, oscillating rollers and back-up rollers all have a continuous surface extending across the full width of the machine.
- Fig. 2 shows a colour printing apparatus comprising a multi-colour ink reservoir 15 from which ink can be drawn by a primary ink transfer roller 16 and transferred via further ink transfer rollers 17,18,19,20,21,22,23,24,25 and 26 to a plate cylinder 27.
- Oscillating rollers 28,29,30 and 31 are arranged parallel to and in operative relationship with ink transfer rollers 17 and 18; 21 and 22; 22,25 and 26; and 19,23 and 24 respectively.
- Each oscillating roller oscillates in a horizontal axial direction and each oscillating roller has a continuous surface extending over the width thereof formed by a covering of synthetic plastics material.
- Back-up rollers 32,33 and 34 are fixed and are in operative contact with ink transfer rollers 19,20 and 21, 22, and 18 and 19 respectively.
- Each back-up roller also has a continuous surface extending across the full width of the machine and is covered with a synthetic plastics cover.
- the primary ink transfer roller 16 is mounted in conventional transverse relationship relative to elongated ink reservoir 15 extending continuously across substantially the full width of the machine.
- the ink reservoir 15 is provided also in conventional manner with a scraper blade 37 which operates in co-operation with the surface of ink transfer roller 16 to control the amount of ink applied to the roller.
- each ink transfer roller comprises a mandrel 38 having a pair of bosses 39,40 at each end for rotatably mounting the mandrel in the printing machine.
- the mandrel 38 is of enlarged diameter as at 41 and is provided with an axially extended slot or keyway 42.
- the mandrel 38 has intermediate stepped portions 43,44 of reducing diameter between the central portion 41 and the end bosses 39,40.
- a plurality of roller segments can be mounted on the enlarged central portion 41 of the mandrel 38 as indicated in Fig. 2.
- Each roller segment 45 is as shown in Figs. 4 and 5 and comprises a rigid annular metallic cylinder or core 46 provided with an ink transfer surface on an outer steel roller or covering 47.
- the core 46 extends axially beyond the ends of the outer covering 47 and the core extensions are provided with tapped screw-threaded holes 49.
- the roller segments 45 can be slid over the enlarged centre portion 41 of the mandrel 38 and locked in position by means of grub screws (not shown) passing through the holes 49 and extending into the axial slot 42 in the central portion 41 of the mandrel 38.
- grub screws not shown
- a separator or separators comprising a pair of parallel plates 50,51 extending transversely across the top of the reservoir and spaced from each other by a distance slightly greater than the length of a roller segment 45 as shown in Fig. 2 so that the plate 50,51 are positioned on either side of its associated roller segment 45.
- the plates 50,51 of each separator are mounted through a bracket 52 on slide 53 which is slidable transversely of the apparatus within a slideway 54 mounted on the rear face of reservoir 15.
- the slides 53 can be positioned along the length of the slideway 54 and releasably secured in any desired position.
- each separator extend downwardly to engage the inner surface of reservoir 15 so as to provide a separate ink-receiving compartment from which ink of a predetermined colour or shade can be supplied to an associated roller segment 45 on primary ink transfer roller 16. It will be understood that any desired number of separators can be positioned along the length of reservoir 15 in order to provide a plurality of separate compartments spaced and sealed from each other so that different colours or shades of ink can be transferred simultaneously to the correspondingly spaced roller segments on primary ink transfer roller 16.
- Each of the ink transfer rollers 16 to 26 of the apparatus of Fig. 2 is fitted with roller segments 45 positioned on each roller at the same transverse location so that the segments of the various ink transfer rollers form an ink transfer path extending longitudinally of the apparatus to the plate cylinder 27.
- the primary ink transfer roller 16 has mounted thereon a number of roller segments 45 corresponding to the number of colours which are to be applied in a single pass.
- the rollers 45 are then spaced along the length of the roller 16 so that their location corresponds to the location of appropriate colour compartments of the ink reservoir 15 as defined by reservoir separator plates 50,51 said separators being correspondingly positioned along the length of the reservoir on their slideway 54.
- the segments 45 are positioned on the other ink transfer rollers 17 to 26 to correspond with the position of those segments on the primary ink transfer roller 16.
- a selected colour of ink is supplied to each separator compartment and the apparatus is then operated in order to effect a first pass in which the selected colours are applied to the plate cylinder 27.
- the segments on the primary ink transfer roller 16 and their associated separators are changed axially as to their positions.
- the positions of the segments 45 on the other ink transfer rollers are modified to correspond thereto.
- a further pass of the machine is then effected to apply these further colours to the plate cylinder 27 at locations spaced from the areas to which colours were applied in the first pass.
- the apparatus has been found to be particularly useful for the printing of rectangular areas or colour batches of a plurality of specified colours at a predetermined location on a sheet which will ultimately form a print colour chart.
- the paint colour chart will be made up of a range of different rectangular discreet batches each of differing colour or shade. If, for example, four spaced roller segments 45 are provided on the primary roller 16, four colours corresponding to the positions of those colour segments will be supplied to the plate cylinder 27 in a single pass and because of the spaced locations of the roller segments 45 there is no opportunity for any of the colours to merge one into the other.
- the position of the segmented rollers 45 is altered so that they now correspond to the location of a further set of four colours contained in ink separators provided within the ink reservoir 15. This further set of colour batches is then applied as before to the plate cylinder 27. Further passes are then made as required according to the number of colour batches required on the finished paint colour chart.
- lithographic apparatus can be employed for the colour printing of paint charts. This enables the printing of such charts to be effected more speedily and more cost effectively as compared with those previously produced by prior machines.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Impression-Transfer Materials And Handling Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB868605338A GB8605338D0 (en) | 1986-03-04 | 1986-03-04 | Colour printing |
GB8605338 | 1986-03-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0236105A2 true EP0236105A2 (fr) | 1987-09-09 |
EP0236105A3 EP0236105A3 (fr) | 1989-10-25 |
Family
ID=10594025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87301789A Withdrawn EP0236105A3 (fr) | 1986-03-04 | 1987-03-02 | Rouleaux d'encrage pour l'impression polychrone |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0236105A3 (fr) |
GB (1) | GB8605338D0 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4300683A1 (de) * | 1993-01-13 | 1994-07-14 | Koenig & Bauer Ag | Farbwerk für eine Rotationsdruckmaschine |
EP0945269A1 (fr) * | 1998-03-23 | 1999-09-29 | Komori Corporation | Dispositif d'encrage |
WO2024040855A1 (fr) * | 2022-08-22 | 2024-02-29 | 江门市恒业彩印有限公司 | Nouvelle plaque de gravure à réservoirs d'encre multiples d'impression |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE67850C (de) * | Firma MASCHINENFABRIK HEIDELBERG, MOLITOR & CIE in Heidelberg und R. F. JÄNICKE in Düsseldorf | Einrichtung für Schnellpressen zur Herstellung von Zweifarbendruck | ||
DE163297C (fr) * | ||||
DE145993C (fr) * | ||||
GB101718A (en) * | 1915-10-04 | 1917-04-26 | Weller Rollin Crandall | Improvements in and relating to Ink Fountains for Printing Presses. |
US1568161A (en) * | 1922-11-25 | 1926-01-05 | Mid States Gummed Paper Compan | Printing press |
CH321898A (de) * | 1953-05-06 | 1957-05-31 | Maschf Augsburg Nuernberg Ag | Mehrteilige Heberwalze für Farbwerke von Druckmaschinen |
FR1258917A (fr) * | 1960-03-08 | 1961-04-21 | Perfectionnement aux machines à imprimer les tissus | |
CH407175A (de) * | 1961-12-04 | 1966-02-15 | Gericke Erich | Druckmaschine, insbesondere Offsetdruckmaschine |
GB1230020A (fr) * | 1967-06-30 | 1971-04-28 |
-
1986
- 1986-03-04 GB GB868605338A patent/GB8605338D0/en active Pending
-
1987
- 1987-03-02 EP EP87301789A patent/EP0236105A3/fr not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE67850C (de) * | Firma MASCHINENFABRIK HEIDELBERG, MOLITOR & CIE in Heidelberg und R. F. JÄNICKE in Düsseldorf | Einrichtung für Schnellpressen zur Herstellung von Zweifarbendruck | ||
DE163297C (fr) * | ||||
DE145993C (fr) * | ||||
GB101718A (en) * | 1915-10-04 | 1917-04-26 | Weller Rollin Crandall | Improvements in and relating to Ink Fountains for Printing Presses. |
US1568161A (en) * | 1922-11-25 | 1926-01-05 | Mid States Gummed Paper Compan | Printing press |
CH321898A (de) * | 1953-05-06 | 1957-05-31 | Maschf Augsburg Nuernberg Ag | Mehrteilige Heberwalze für Farbwerke von Druckmaschinen |
FR1258917A (fr) * | 1960-03-08 | 1961-04-21 | Perfectionnement aux machines à imprimer les tissus | |
CH407175A (de) * | 1961-12-04 | 1966-02-15 | Gericke Erich | Druckmaschine, insbesondere Offsetdruckmaschine |
GB1230020A (fr) * | 1967-06-30 | 1971-04-28 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4300683A1 (de) * | 1993-01-13 | 1994-07-14 | Koenig & Bauer Ag | Farbwerk für eine Rotationsdruckmaschine |
US5406886A (en) * | 1993-01-13 | 1995-04-18 | Koenig & Bauer Aktiengesellschaft | Inking system for a rotary press |
DE4300683C2 (de) * | 1993-01-13 | 1998-08-13 | Koenig & Bauer Albert Ag | Farbwerk für eine Rotationsdruckmaschine |
EP0945269A1 (fr) * | 1998-03-23 | 1999-09-29 | Komori Corporation | Dispositif d'encrage |
US6109178A (en) * | 1998-03-23 | 2000-08-29 | Komori Corporation | Combined ink fountain and blade mounted to move along length of fountain roll |
WO2024040855A1 (fr) * | 2022-08-22 | 2024-02-29 | 江门市恒业彩印有限公司 | Nouvelle plaque de gravure à réservoirs d'encre multiples d'impression |
Also Published As
Publication number | Publication date |
---|---|
GB8605338D0 (en) | 1986-04-09 |
EP0236105A3 (fr) | 1989-10-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 19900410 |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: MCCORQUODALE COLOUR DISPLAY LIMITED |
|
17Q | First examination report despatched |
Effective date: 19910902 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 19920313 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: STIRLING, STANLEY JOHN JAMES |