EP3752370A1 - Farbübertragungsmedium, insbesondere drucktuch, insbesondere drucktuch für den offset-druck, ganz besonders drucktuch für den trockenoffsetdruck - Google Patents
Farbübertragungsmedium, insbesondere drucktuch, insbesondere drucktuch für den offset-druck, ganz besonders drucktuch für den trockenoffsetdruckInfo
- Publication number
- EP3752370A1 EP3752370A1 EP19700453.4A EP19700453A EP3752370A1 EP 3752370 A1 EP3752370 A1 EP 3752370A1 EP 19700453 A EP19700453 A EP 19700453A EP 3752370 A1 EP3752370 A1 EP 3752370A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- blanket
- contact
- layer
- transfer medium
- 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
- 238000007639 printing Methods 0.000 title claims abstract description 58
- 238000012546 transfer Methods 0.000 title claims abstract description 38
- 238000007645 offset printing Methods 0.000 title claims abstract description 22
- 238000004049 embossing Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000013536 elastomeric material Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 58
- 239000000976 ink Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- 239000000758 substrate Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002346 layers by function Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000003082 abrasive agent Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
- B41N10/02—Blanket structure
- B41N10/04—Blanket structure multi-layer
Definitions
- Ink transfer medium in particular blanket, in particular blanket for offset printing, in particular blanket for dry offset printing
- the present invention relates to a color transfer medium, in particular a printing cloth, in particular a blanket for offset printing, especially a blanket for dry offset printing, according to the preamble of patent claim 1.
- offset printing is an indirect planographic printing process, which is the printing technology most widely used in books, newspapers, advertising and packaging printing.
- indirect printing processes the printing plate and the print carrier do not come into contact with each other.
- the ink is first transferred to a blanket cylinder and then to the substrate as the medium to be printed.
- the printing plate is spared and it can be printed on a wide range of substrates such as paper, cardboard, plastic films), glass and ceramic as well as sheets.
- a particular application of offset printing is dry offset printing as an indirect high pressure process. Dry-offset printing can be used to print conical or cylindrical molds such as cups, plastic tubes and pails.
- the blanket or the printing blanket thus denotes an intermediate carrier with which the printing ink is transferred from the printing plate to the medium to be printed, for example onto a printing substrate.
- the blanket is stretched on a blanket cylinder or short rubber cylinder, which is operated between the plate cylinder with the pressure plate and the printing or impression cylinder with the printing material.
- dry offset printing instead the blanket is stretched on a blanket cylinder, which is operated between a plate cylinder with high pressure form and the printing or impression cylinder with the substrate.
- compressible and incompressible rubber blankets There is a distinction between compressible and incompressible rubber blankets. The blanket thus has a great influence on the quality of the printed product, since the transfer of the ink on the substrate from the blanket leads Runaway.
- the thickness of the blanket ie its radial strength, must be set to a predetermined level with a Restaurantstimm th very low tolerance.
- a stratum density a predetermined level
- printing inks with a thickness of 1,950 ⁇ m are used in the printing industry with a tolerance of +/- 20 ⁇ m.
- the thickness of the printing blanket is adjusted by the surface of the cover plate or the cover layer of the vulcanized printing blanket pointing radially outward being ground down to the predetermined level.
- the disadvantage here is that the radially outwardly facing surface of the cover layer as the functional layer of the blanket just represents the side which serves the Farbübertra supply.
- an abrasive structure are formed, which at least for some printing applications may be undesirable because the color transfer can be affected by the abrasive structure and the print result can be degraded.
- a further disadvantage when grinding the pressure side of the cover layer is that, as long as this surface is ground, the pressure side of the cover layer can not be set or shaped in a defined manner by other methods.
- the radially outwardly facing surface of the cover layer can be damaged during grinding by hard foreign bodies which may fall between the blanket and the abrasive material during grinding or are embedded in the cover layer.
- the surface of the cover layer can be sanded less in this area, so that an elevation remains in this area of the uncut surface of the cover layer. This can in each case change the surface facing the surface of the cover layer in such a way that no printing process can be carried out with this blanket. The blanket may then be unusable as a whole and be considered scrap.
- An object of the present invention is to provide a dye transfer medium, in particular a blanket, in particular a blanket for offset printing, especially a blanket for dry offset printing, of the type described above, so that the aforementioned disadvantages can be overcome , In particular, the limitations of the surface design of the pressure side of the cover layer, which can result from the grinding of this page, are reduced or even completely avoided. At least an alternative color transfer medium is to be created.
- the present invention relates to a color transfer medium, in particular a blanket, in particular a blanket for offset printing, especially one Dry offset printing blanket, having a cover layer with a printing side, wherein the cover layer is adapted to transfer a color by means of the printing side, and with a contact layer having a contact side, wherein the contact layer is formed to be arranged on a surface of a planar body, wherein the contact side of the contact layer is disposed away from the pressure side of the cover layer.
- the Far bübertragungsmedium is characterized in that the contact side of the contact layer is formed ground.
- the hitherto known grinding of the ink transfer medium which serves to set a predetermined thickness of the ink transfer medium with the lowest possible tolerance, can be shifted from the printing side to the opposite contact side.
- the contact side of the contact layer is adapted to make contact with a sheet-like body such as e.g. a pressure cylinder or the like, grinding structures and the like on the surface of the contact side of the contact layer can be accepted, as this can be effected neither an effect on the con tact effect nor an influence on the printing result.
- the pressure side can thus remain free of the previously known abrasive structures, which can provide ent speaking advantages, as will be described in more detail below.
- the contact of the contact side of the contact layer to a flat body, such as to a pressure cylinder can preferably be made cohesively. This can enable a secure hold of the ink transfer medium on the flat body via the contact side of the contact layer. Preferably, this can be applied to the contact side of the contact layer, an adhesive layer to contact the contact side of the Contact layer to a flat body such as to achieve a printing cylinder by means of adhesive bonding as simple as possible, reproducible and / or cost.
- the present invention can be applied to any color transfer media that can be used in printing processes.
- the present invention can be applied to color transfer media of offset printing, flexographic printing and digital printing to take advantage of the advantageous properties there.
- the pressure side of the cover layer is formed uncut.
- abrasive structures on the print side of the cover layer can be safely avoided, so that its effects on the printing result un can remain.
- other options for surface design can be created by, as will be described below.
- the Farbübertragungsme medium at least in sections, a predetermined thickness, which was adjusted by grinding the contact side of the contact layer.
- the predetermined thickness of the ink transfer medium can be achieved as previously known by grinding.
- the disadvantages that can result from grinding the printing side of the cover layer can be avoided, as already described above.
- the printing side of the cover layer is at least partially embossed by means of a stamping foil and or or by means of a stamping paper.
- the printing side of the cover layer has a surface embossed with a stamping foil or embossing paper. This can make it possible to improve a color acceptance and / or a color output. This is hitherto prevented by grinding the pressure side of the cover layer, since an embossed Oberflä surface of the pressure side of the cover layer would be destroyed by the subsequent grinding.
- the displacement of the ground surface from the pressure side of the cover layer to the contact side of the contact layer can result in new ones Design options for the print side of the cover layer and thus created for the Druckvor gear to improve this.
- the dye transfer medium has at least one reinforcement layer, which is arranged at least in sections between the cover layer and the contact layer.
- This can enable the transmission of forces and in particular of tensile forces, in particular in the direction of rotation of the Far bübertragungsmediums in the printing process and thus promote the stability and the fidelity of the ink transfer medium.
- textile fabrics such as, for example, Tissue can be used, which allow the imple mentation of the properties described above and at the same time cost, easy to process and or or be light in weight.
- the cover layer and / or the reinforcement layer and / or the contact layer comprises at least one elastomeric material, in particular at least one rubber, and preferably consists of this.
- the corresponding material properties can be used for the implementation of such a color transfer medium.
- Fig. 1 is a schematic sectional view of a color transfer medium according to the invention.
- FIG. 2 shows a perspective schematic representation of a color transfer medium according to the invention.
- Fig. 2 shows a perspective schematic representation of an inventions to the invention ink transfer medium 1.
- the ink transfer medium 1 is formed in this embodiment as a blanket 1 or as a blanket 1 for dry offset printing.
- the blanket 1 has in the radial direction R from outside to inside a cover layer 10 as a functional layer 10 with a pressure side lOa, which is court ended radially outward.
- the printing side 10a is used to receive color in order to transfer it to a printing material.
- a reinforcement 11 joins, which can transmit tensile forces, in particular in the circumferential direction U, by means of an embedded fabric.
- a contact layer 12 now adjoins a contact side 12a, the contact side 12a of the contact layer 12 facing away from the pressure side 10a of the cover layer 10.
- the cover layer 10 and the contact layer 12 are made of an elastomeric material.
- the Festig keitslic für 11 has an elastomeric material in which the fabric is embedded.
- the contact side 12a of the contact layer 12 is instead ground according to the invention in order to achieve the same result, but to leave the printed side 10a of the cover layer 10 unpolished. This can avoid abrasive structures on the printing side 10a of the cover layer 10, which can adversely affect the printing result.
- the printing side 10a of the cover layer 10 can be embossed, at least in sections, by means of an embossing film and / or by means of an embossing paper in order to improve the ink transfer to the printing side 10a of the cover layer 10.
Landscapes
- Printing Plates And Materials Therefor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018202382.4A DE102018202382B4 (de) | 2018-02-16 | 2018-02-16 | Farbübertragungsmedium, insbesondere Drucktuch, insbesondere Drucktuch für den Offset-Druck, ganz besonders Drucktuch für den Trockenoffsetdruck |
PCT/EP2019/050208 WO2019158273A1 (de) | 2018-02-16 | 2019-01-07 | Farbübertragungsmedium, insbesondere drucktuch, insbesondere drucktuch für den offset-druck, ganz besonders drucktuch für den trockenoffsetdruck |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3752370A1 true EP3752370A1 (de) | 2020-12-23 |
Family
ID=65019492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19700453.4A Pending EP3752370A1 (de) | 2018-02-16 | 2019-01-07 | Farbübertragungsmedium, insbesondere drucktuch, insbesondere drucktuch für den offset-druck, ganz besonders drucktuch für den trockenoffsetdruck |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3752370A1 (de) |
DE (1) | DE102018202382B4 (de) |
WO (1) | WO2019158273A1 (de) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5006400A (en) * | 1988-12-09 | 1991-04-09 | Day International | Printing blanket construction having nontextured surface |
JP2004276331A (ja) * | 2003-03-13 | 2004-10-07 | Sumitomo Rubber Ind Ltd | 印刷用ブランケットの製造方法 |
JP2005125666A (ja) * | 2003-10-24 | 2005-05-19 | Kinyosha Co Ltd | 印刷用ブランケットの製造方法及び印刷用ブランケット |
FR2884753B1 (fr) * | 2005-04-22 | 2008-08-08 | Macdermid Graphic Arts Sas Soc | Blanchet d'impression destine a etre monte sur un cylindre de support rotatif d'une machine d'impression. |
DE102013103511A1 (de) * | 2013-04-09 | 2014-10-23 | Contitech Elastomer-Beschichtungen Gmbh | Verfahren zur Herstellung eines Drucktuches |
ITUB20160940A1 (it) * | 2016-02-22 | 2017-08-22 | Trelleborg Coated Systems Italy S P A | Telo gommato per un cilindro di stampa di una macchina per stampa |
ITUA20162250A1 (it) * | 2016-04-01 | 2017-10-01 | Trelleborg Coated Systems Italy S P A | Tessuto gommato per stampa offset |
-
2018
- 2018-02-16 DE DE102018202382.4A patent/DE102018202382B4/de active Active
-
2019
- 2019-01-07 EP EP19700453.4A patent/EP3752370A1/de active Pending
- 2019-01-07 WO PCT/EP2019/050208 patent/WO2019158273A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
WO2019158273A1 (de) | 2019-08-22 |
DE102018202382B4 (de) | 2024-09-26 |
DE102018202382A1 (de) | 2019-08-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69803722T2 (de) | Gummidrucktuch und Verfahren zum Aufziehen desselben auf einen Zylinder | |
EP0844100B1 (de) | Drucktuch für Offsetdruck | |
EP2502753B1 (de) | Polymeres Drucktuch | |
DE60010354T2 (de) | Gummituch mit variabelen Oberflächeneigenschaften für eine Druckmaschine | |
DE102007010204A1 (de) | Prägefolieneinrichtung | |
DE2817522C3 (de) | Drucktuch | |
DE2445152A1 (de) | Rotationstiefdruckeinrichtung | |
WO2019158273A1 (de) | Farbübertragungsmedium, insbesondere drucktuch, insbesondere drucktuch für den offset-druck, ganz besonders drucktuch für den trockenoffsetdruck | |
DE68922479T2 (de) | Bildplattenkonstruktion für Hochdruck. | |
EP1177100B1 (de) | Dehnschicht aus kompressiblem material | |
DE102008047096A1 (de) | Drucktuch für ein Kaltfolientransferverfahren | |
EP3322594B1 (de) | Drucktuch für den flexodruck | |
DE69511454T2 (de) | Hülse zum Montieren auf Trägerzylindern von Flexodruckmaschinen | |
EP3121028A2 (de) | Platte zum herstellen von hologrammen und verfahren zum herstellen der platte | |
DE19750259B4 (de) | Verfahren und Druckmaschine zum mehrfarbigen Bedrucken von nichtsaugendem Material | |
DE102011053748A1 (de) | Mehrschichtiges Flächengebilde zur Verwendung als Drucktuch oder Druckplatte für den Hochdruck, insbesondere den Flexodruck | |
WO2002038367A1 (de) | Stanzvorrichtung | |
EP1227937B1 (de) | Druckwerk und verfahren für den druck von wellkarton | |
EP2033786A2 (de) | Farbkammer | |
EP0306933B1 (de) | Druckplatte, insbesondere für den Zeitungsrotations-Hochdruck | |
DE3717639C2 (de) | Umdruckpresse mit federnden Ausgleichseinrichtungen | |
DE102018217261A1 (de) | Druckverfahren und Bogendruckmaschine | |
EP1184172B1 (de) | Gummituchzylinder in einer Offset-Rotationsdruckmaschine | |
EP4067103B1 (de) | Herstellungsverfahren für ein optisch variables sicherheitselement | |
AT519172B1 (de) | Verfahren zum bedrucken von substraten mit einem druckbild |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
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 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20200916 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20221220 |
|
RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: CONTITECH ELASTOMER-BESCHICHTUNGEN GMBH |