EP0695636A2 - Méthode et dispositif pour l'encrage d'une plaque lithographique "non-aqueuse" - Google Patents

Méthode et dispositif pour l'encrage d'une plaque lithographique "non-aqueuse" Download PDF

Info

Publication number: EP0695636A2
Authority: EP; European Patent Office
Prior art keywords: release agent; roller; printing plate; inking; unit
Prior art date: 1994-07-14
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

Application number

EP95110528A

Other languages

German (de)

English (en)

Other versions

EP0695636A3 (fr

EP0695636B1 (fr

Inventor

Karl Robert Schäfer

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Koenig and Bauer AG

Original Assignee

Koenig and Bauer Albert AG

Priority date (The priority date 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 date listed.)

1994-07-14

Filing date

1995-07-06

Publication date

1996-02-07

1995-07-06 Application filed by Koenig and Bauer Albert AG filed Critical Koenig and Bauer Albert AG

1996-02-07 Publication of EP0695636A2 publication Critical patent/EP0695636A2/fr

1997-09-24 Publication of EP0695636A3 publication Critical patent/EP0695636A3/fr

1999-10-13 Application granted granted Critical

1999-10-13 Publication of EP0695636B1 publication Critical patent/EP0695636B1/fr

2015-07-06 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000007639 printing Methods 0.000 title claims abstract description 67
238000000034 method Methods 0.000 title claims description 6
229920002545 silicone oil Polymers 0.000 claims abstract description 4
239000003795 chemical substances by application Substances 0.000 claims description 65
238000000576 coating method Methods 0.000 claims description 13
238000007774 anilox coating Methods 0.000 claims description 10
239000011248 coating agent Substances 0.000 claims description 10
238000009826 distribution Methods 0.000 claims description 8
239000007921 spray Substances 0.000 claims description 6
238000007645 offset printing Methods 0.000 claims description 5
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
229920005560 fluorosilicone rubber Polymers 0.000 claims description 4
229910052814 silicon oxide Inorganic materials 0.000 claims description 4
229920002379 silicone rubber Polymers 0.000 claims description 4
239000004945 silicone rubber Substances 0.000 claims description 3
239000012754 barrier agent Substances 0.000 abstract 5
239000000976 ink Substances 0.000 description 32
229920001971 elastomer Polymers 0.000 description 6
239000005871 repellent Substances 0.000 description 3
239000004959 Rilsan Substances 0.000 description 1
238000004040 coloring Methods 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
239000003973 paint Substances 0.000 description 1
238000005507 spraying Methods 0.000 description 1

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/06—Lithographic printing
- B41M1/08—Dry printing
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices

Definitions

the invention relates to a method and a device for inking a "waterless" planographic printing plate according to the preamble of claim 1.
a printing plate from Toray Industries, INC discloses a printing plate which is suitable for a "waterless” planographic printing process.
the invention has for its object to provide a method for inking a so-called “waterless” planographic printing plate, in which conventional, ie not adapted to the "waterless” planographic printing Printing inks can be used.
the advantages that can be achieved with the invention are, in particular, that conventional printing inks can be used and therefore ink transfer difficulties due to release agents in the ink feed roller train are avoided. It is particularly advantageous that an amount of release agent can be metered in and thus adapted to different operating states of a rotary offset printing press during production. With this release agent, the affinity of the ink-repellent, non-printing areas of the planographic printing plate for the printing ink is reduced. The constant supply of release agent in the finest dosage protects the color-repellent, non-printing areas of the planographic printing plate, which are slightly above the level of the printing areas, thus reducing wear. In addition, the used release agent is transported back and thus cleaned the planographic printing plate.
a known offset printing unit 2 consisting of a rubber cylinder 3, a second Rubber cylinder 4, which acts as an impression cylinder and a plate cylinder 6.
a paper web 7 is printed between the rubber cylinders 3, 4.
On the plate cylinder 6 a known, prepared for "waterless” planographic printing plate 8 is attached.
This planographic printing plate 8 has ink-accepting, printing areas 9 and ink-repellent, non-printing areas 11, which are slightly above the level of the printing areas 9.
an inking unit 12 interacts with an ink-guiding roller train 13 and a release agent applicator 14 with a release agent-carrying roller train 16.
a short inking unit 19 consisting of a soft application roller 21, an anilox roller 22 and a doctor blade device 23, preferably a chamber doctor blade, is used as the inking unit 12. Coatings 24, 26 of the soft application roller 21 and the anilox roller 22 are color-friendly.
the release agent application unit 14 is in the first Exemplary embodiment as a short application unit 27 with a soft release agent application roller 28, an anilox roller 29 and a doctor blade device 31, preferably a doctor blade, of the release agent source, (FIG. 1).
the release agent application roller 28 is provided with a soft, release agent-friendly coating 32, for example silicone rubber or fluorosilicone rubber.
the anilox roller 29 is also equipped with a release agent-friendly coating 33, for example silicone rubber or fluorosilicone rubber and / or silicon oxide.
Printing ink 17 or release agent 18, for example silicone oil is applied to the anilox rollers 22, 29 by means of the doctor devices 23, 31.
the printing ink 17 or the release agent 18 is transferred directly from the anilox rollers 22, 29 to the planographic printing plate 8 via the application rollers 21, 28.
the non-printing areas 11 of the planographic printing plate 8 are wetted with release agent 18 and the printing areas 9 of the planographic printing plate 8 with printing ink 17.
conventional inking units 34 can also be used.
a conventional inking unit 34 consists of two inking rollers 36, 37 abutting the plate cylinder 6, which are connected to an inking cylinder 38.
All rollers 36 to 44 are provided with color-friendly coatings (e.g. rubber, Rilsan).
the release agent application unit 14 can be designed as a spray application unit 47 (FIG. 2).
the release agent application roller 48 is connected to a release agent distribution cylinder 49. Release agent 18 is applied to this release agent distribution cylinder 49 by means of a spray mechanism 51, the release agent source, which is not described in detail.
FIGS 58 The elements of the film applicator 53 are release agent applicator roller 59, release agent distribution cylinder 61 and release agent ductor 62.
FIG. 5 shows an example corresponding to FIG. 1 for a indirect supply of the release agent 18 to the "waterless" planographic printing plate 8.
a release agent application roller 63 of a short application unit 64 lies against the soft ink application roller 21 of the short inking unit 12 and transfers release agent 18 to this ink application roller 21. From this ink application roller 21, which now carries ink and release agent, the printing ink 17 and the release agent 18 come together the "waterless" planographic printing plate 8 transferred.
the planographic printing plate 8 is fed indirectly from the release agent application roller 63 release agent 18.
the release agent application roller 63 is provided with a hard, release agent-friendly coating 66, for example silicon oxide, and is designed as an anilox roller which interacts with the doctor device 31.
All coatings of the rolls of the applicator 14 described are release agent-friendly and can be soft z.
the number of individual rollers of the release agent applicator 14 can of course be variable.
the release agent application unit 14 can, of course, be designed so that it can be switched off and thus none Release agent 18 applied.
the "waterless" planographic printing plate 8 can now be supplied by means of the inking unit 12 printing ink which is adapted to the "waterless” planographic printing plate 8.

Landscapes

Printing Methods (AREA)
Inking, Control Or Cleaning Of Printing Machines (AREA)

EP95110528A 1994-07-14 1995-07-06 Méthode et dispositif pour l'encrage d'une plaque lithographique "non-aqueuse" Expired - Lifetime EP0695636B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE4424891		1994-07-14
DE4424891A DE4424891C2 (de)	1994-07-14	1994-07-14	Verfahren und Vorrichtung zur Durchführung dieses Verfahrens zum Einfärben einer "wasserlosen" Flachdruckplatte

Publications (3)

Publication Number	Publication Date
EP0695636A2 true EP0695636A2 (fr)	1996-02-07
EP0695636A3 EP0695636A3 (fr)	1997-09-24
EP0695636B1 EP0695636B1 (fr)	1999-10-13

Family

ID=6523162

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP95110528A Expired - Lifetime EP0695636B1 (fr)	1994-07-14	1995-07-06	Méthode et dispositif pour l'encrage d'une plaque lithographique "non-aqueuse"

Country Status (4)

Country	Link
US (1)	US5676053A (fr)
EP (1)	EP0695636B1 (fr)
JP (1)	JP3090249B2 (fr)
DE (1)	DE4424891C2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4438246C1 (de) *	1994-10-26	1995-12-07	Metronic Geraetebau	Druckeinrichtung zum Bedrucken von Compact-Discs (CD)
DE19732497B4 (de)	1997-07-29	2005-08-11	Man Roland Druckmaschinen Ag	Kurzfarbwerk in einem Druckwerk einer Rotationsdruckmaschine
DE19933438B4 (de) *	1999-07-16	2004-07-08	Man Roland Druckmaschinen Ag	Druckmaschine mit nicht am Druck-/Lackierprozess beteiligten Druck-/Lackwerken
DE10039279A1 (de) *	1999-09-09	2001-03-15	Heidelberger Druckmasch Ag	Walze für Druckmaschinen
US6881533B2 (en) *	2003-02-18	2005-04-19	Kodak Polychrome Graphics Llc	Flexographic printing plate with ink-repellent non-image areas
DE102008061735A1 (de) *	2008-12-11	2010-06-17	Weros Technology Gmbh	Druckverfahren, insbesondere Offset-Druckverfahren, und Trennmittel für dieses

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4724764B1 (en) *	1983-05-11	1994-09-20	Baldwin Technology Corp	Dampening system
JPH0789207A (ja) *	1993-09-24	1995-04-04	Dainippon Ink & Chem Inc	水無しオフセット輪転印刷方法

1994
- 1994-07-14 DE DE4424891A patent/DE4424891C2/de not_active Expired - Fee Related
1995
- 1995-07-06 EP EP95110528A patent/EP0695636B1/fr not_active Expired - Lifetime
- 1995-07-13 JP JP07177498A patent/JP3090249B2/ja not_active Expired - Fee Related
- 1995-07-14 US US08/502,775 patent/US5676053A/en not_active Expired - Fee Related

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number	Publication date
DE4424891C2 (de)	1997-04-17
JPH08174986A (ja)	1996-07-09
US5676053A (en)	1997-10-14
EP0695636A3 (fr)	1997-09-24
EP0695636B1 (fr)	1999-10-13
JP3090249B2 (ja)	2000-09-18
DE4424891A1 (de)	1996-01-18

Legal Events

Date	Code	Title	Description
1996-01-08	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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1998-05-20	17P	Request for examination filed	Effective date: 19980319
1998-12-09	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: KOENIG & BAUER AKTIENGESELLSCHAFT
1998-12-10	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1999-01-13	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1999-01-13	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1999-01-27	17Q	First examination report despatched	Effective date: 19981215
1999-05-04	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1999-08-27	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1999-10-08	ITF	It: translation for a ep patent filed
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2000-01-28	ET	Fr: translation filed
2000-08-11	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
2000-08-11	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
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2003-07-16	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 20030716 Year of fee payment: 9
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Publication	Publication Date	Title
DE2446188C3 (de)	1983-11-24	Bogenführende Mantelfläche von Gegendruckzylindern oder Bogenüberführungszylindern in Rotationsoffsetdruckmaschinen
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