EP3960480A1 - Diminution de l'encadrement dans un procédé d'impression offset par ajout d'au moins un additif inorganique à l'agent hydratant - Google Patents

Diminution de l'encadrement dans un procédé d'impression offset par ajout d'au moins un additif inorganique à l'agent hydratant Download PDF

Info

Publication number: EP3960480A1
Authority: EP; European Patent Office
Prior art keywords: inorganic additive; hydrates; dampening; offset printing; solution
Prior art date: 2020-09-01
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP20193821.4A

Other languages

German (de)

English (en)

Inventor

Giuseppe Lanza

Christian Höke

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.)

Heidelberger Druckmaschinen AG

Original Assignee

Heidelberger Druckmaschinen 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.)

2020-09-01

Filing date

2020-09-01

Publication date

2022-03-02

2020-09-01 Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG

2020-09-01 Priority to EP20193821.4A priority Critical patent/EP3960480A1/fr

2022-03-02 Publication of EP3960480A1 publication Critical patent/EP3960480A1/fr

Status Withdrawn legal-status Critical Current

Links

239000000654 additive Substances 0.000 title claims abstract description 25
230000000996 additive effect Effects 0.000 title claims abstract description 24
238000007645 offset printing Methods 0.000 title claims abstract description 24
238000009432 framing Methods 0.000 title claims abstract description 12
239000003795 chemical substances by application Substances 0.000 title description 6
238000013016 damping Methods 0.000 title 1
CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 40
UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims abstract description 26
238000000034 method Methods 0.000 claims abstract description 26
229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 20
235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 20
150000004677 hydrates Chemical class 0.000 claims abstract description 19
235000017557 sodium bicarbonate Nutrition 0.000 claims abstract description 13
229910000030 sodium bicarbonate Inorganic materials 0.000 claims abstract description 13
239000000243 solution Substances 0.000 claims description 45
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 12
150000001340 alkali metals Chemical class 0.000 claims description 12
229910052783 alkali metal Inorganic materials 0.000 claims description 10
229910052784 alkaline earth metal Inorganic materials 0.000 claims description 10
-1 alkaline earth metal sulfates Chemical class 0.000 claims description 10
NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 claims description 10
239000000203 mixture Substances 0.000 claims description 8
235000002639 sodium chloride Nutrition 0.000 claims description 8
239000011780 sodium chloride Substances 0.000 claims description 6
239000000126 substance Substances 0.000 claims description 6
239000007864 aqueous solution Substances 0.000 claims description 5
235000003270 potassium fluoride Nutrition 0.000 claims description 5
239000011698 potassium fluoride Substances 0.000 claims description 5
235000006666 potassium iodate Nutrition 0.000 claims description 5
JLKDVMWYMMLWTI-UHFFFAOYSA-M potassium iodate Chemical compound [K+].[O-]I(=O)=O JLKDVMWYMMLWTI-UHFFFAOYSA-M 0.000 claims description 5
239000001230 potassium iodate Substances 0.000 claims description 5
229940093930 potassium iodate Drugs 0.000 claims description 5
UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 3
229910001508 alkali metal halide Inorganic materials 0.000 claims description 2
229910001615 alkaline earth metal halide Inorganic materials 0.000 claims description 2
238000007639 printing Methods 0.000 abstract description 35
239000000976 ink Substances 0.000 description 11
KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
FXBYOMANNHFNQV-UHFFFAOYSA-L magnesium;hydrogen sulfate Chemical compound [Mg+2].OS([O-])(=O)=O.OS([O-])(=O)=O FXBYOMANNHFNQV-UHFFFAOYSA-L 0.000 description 3
239000000463 material Substances 0.000 description 3
239000000123 paper Substances 0.000 description 3
WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
239000012141 concentrate Substances 0.000 description 2
150000003839 salts Chemical class 0.000 description 2
PUZPDOWCWNUUKD-UHFFFAOYSA-M sodium fluoride Chemical compound [F-].[Na+] PUZPDOWCWNUUKD-UHFFFAOYSA-M 0.000 description 2
238000005406 washing Methods 0.000 description 2
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
239000011111 cardboard Substances 0.000 description 1
230000000052 comparative effect Effects 0.000 description 1
239000003599 detergent Substances 0.000 description 1
239000010408 film Substances 0.000 description 1
QWDJLDTYWNBUKE-UHFFFAOYSA-L magnesium bicarbonate Chemical compound [Mg+2].OC([O-])=O.OC([O-])=O QWDJLDTYWNBUKE-UHFFFAOYSA-L 0.000 description 1
239000002370 magnesium bicarbonate Substances 0.000 description 1
229910000022 magnesium bicarbonate Inorganic materials 0.000 description 1
235000014824 magnesium bicarbonate Nutrition 0.000 description 1
ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
239000001095 magnesium carbonate Substances 0.000 description 1
229910000021 magnesium carbonate Inorganic materials 0.000 description 1
235000014380 magnesium carbonate Nutrition 0.000 description 1
ORUIBWPALBXDOA-UHFFFAOYSA-L magnesium fluoride Chemical compound [F-].[F-].[Mg+2] ORUIBWPALBXDOA-UHFFFAOYSA-L 0.000 description 1
229910001635 magnesium fluoride Inorganic materials 0.000 description 1
UYNRPXVNKVAGAN-UHFFFAOYSA-L magnesium;diiodate Chemical compound [Mg+2].[O-]I(=O)=O.[O-]I(=O)=O UYNRPXVNKVAGAN-UHFFFAOYSA-L 0.000 description 1
NALMPLUMOWIVJC-UHFFFAOYSA-N n,n,4-trimethylbenzeneamine oxide Chemical compound CC1=CC=C([N+](C)(C)[O-])C=C1 NALMPLUMOWIVJC-UHFFFAOYSA-N 0.000 description 1
239000006259 organic additive Substances 0.000 description 1
239000011087 paperboard Substances 0.000 description 1
235000011164 potassium chloride Nutrition 0.000 description 1
239000001103 potassium chloride Substances 0.000 description 1
WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 1
229910000342 sodium bisulfate Inorganic materials 0.000 description 1
229910000029 sodium carbonate Inorganic materials 0.000 description 1
235000017550 sodium carbonate Nutrition 0.000 description 1
235000013024 sodium fluoride Nutrition 0.000 description 1
239000011775 sodium fluoride Substances 0.000 description 1
239000011697 sodium iodate Substances 0.000 description 1
235000015281 sodium iodate Nutrition 0.000 description 1
229940032753 sodium iodate Drugs 0.000 description 1
229910052938 sodium sulfate Inorganic materials 0.000 description 1
235000011152 sodium sulphate Nutrition 0.000 description 1
239000007787 solid Substances 0.000 description 1
239000010409 thin film Substances 0.000 description 1
239000002966 varnish Substances 0.000 description 1
239000002699 waste material 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
- B41N3/00—Preparing for use and conserving printing surfaces
- B41N3/08—Damping; Neutralising or similar differentiation treatments for lithographic printing formes; Gumming or finishing solutions, fountain solutions, correction or deletion fluids, or on-press development

Definitions

the offset printing process is a printing process that has been in use in the printing industry for a long time.
the offset printing presses equipped for this usually include at least one inking unit, printing unit and dampening unit.
ink is transferred from a printing plate, which is also referred to as a printing form, to the printing material such as paper or cardboard in the form of a thin layer.
the inking unit always supplies the printing areas with fresh ink.
the dampening system has the task of providing the non-printing elements of the printing plate with a thin film of dampening solution.
dampening units are known, for example siphon dampening units, film dampening units and brush dampening units.
the dampening solution is used to separate the printing and non-printing areas on the printing form, i.e. to avoid ink transfer to ink- or image-free areas of the printing plate.
fountain solutions are usually used, which consist mainly of water.
the DE10238874A1 describes a method with which it should be possible to extend the service life of a dampening solution.
the EP 1 080 943 A1 describes dampening solution that should enable good printing results without the addition of isopropanol to the dampening solution.
the EP 2 233 311 A1 describes organic additives to fountain solutions for lithographic printing processes, which are intended to reduce deposits during the printing process.
an inorganic additive preferably being selected from magnesium sulfate and its hydrates, sodium bicarbonate and its mixtures.
the invention has several advantages. Even after several thousand printing processes, there is hardly any picture framing. The printing process becomes more efficient because fewer or no washing cycles are required. Detergent and descaler are saved.
the present invention therefore relates to the use of at least one inorganic additive as an addition to a dampening solution to reduce deposits in an offset printing process.
the deposits are preferably picture framing.
dampening agents customarily used in offset printing processes can be considered as dampening agents for the subject of the present invention.
dampening solutions preferably consist predominantly of water and are produced from a dampening solution concentrate.
Suitable fountain solutions can be alcohol-free or have an alcohol content, for example up to 10% by weight or 20% by weight alcohol.
the alcohol content is preferably isopropanol.
Dampening solutions suitable for the present invention are, for example, those marketed by Heidelberger Druckmaschinen AG, Heidelberg, Germany, under the brand name Saphira® or dampening solution that is produced in the printer from dampening solution concentrates available under this brand name.
the picture framing is essentially due to the printing media used in the printing units of the offset printing process, such as printing inks and varnishes.
the subject according to the invention makes it possible to reduce picture framing in all print media that are customarily used in offset printing.
the print media can be, for example, conventional offset printing inks, UV printing inks or hybrid printing inks.
the at least one inorganic additive comprises at least one of the substances from the group of alkali metal and alkaline earth metal sulfates, alkali metal and alkaline earth metal hydrogen sulfates, alkali metal and alkaline earth metal carbonates, alkali metal and alkaline earth metal hydrogen carbonates, alkali metal and alkaline earth metal halides, alkali metal and alkaline earth metal iodates and their hydrates .
the at least one inorganic additive comprises at least one of the substances sodium sulfate, magnesium sulfate, sodium hydrogen sulfate, magnesium hydrogen sulfate, sodium carbonate, magnesium carbonate, sodium hydrogen carbonate, magnesium hydrogen carbonate, sodium chloride, potassium chloride, sodium fluoride, potassium fluoride, magnesium fluoride, sodium iodate, potassium iodate, magnesium iodate and hydrates thereof.
the at least one inorganic additive comprises at least one of the substances magnesium sulfate, magnesium hydrogen sulfate, sodium hydrogen carbonate, sodium chloride, potassium fluoride, potassium iodate and their hydrates.
the at least one inorganic additive is selected from magnesium sulfate and its hydrates, magnesium hydrogen sulfate, sodium hydrogen carbonate and mixtures thereof.
the at least one inorganic additive is selected from magnesium sulfate and its hydrates and sodium bicarbonate, in particular from magnesium sulfate and its hydrates.
Magnesium sulfate and its hydrates are also known as the Epsom salt.
Sodium bicarbonate is also known as baking soda.
this can also be present in the form of a mixture with other salts as vacuum salt.
the present invention relates to a method for reducing deposits in an offset printing process, in which at least one fountain solution is used, in which at least one fountain solution is provided and at least one inorganic additive is added to the at least one fountain solution, which is selected from Magnesium sulfate and its hydrates, sodium hydrogen carbonate, sodium chloride, potassium fluoride, potassium iodate and mixtures thereof, preferably among magnesium sulfate and its hydrates, sodium hydrogen carbonate and mixtures thereof.
the at least one dampening solution is provided in at least one dampening unit of an offset printing machine and the at least one inorganic additive, preferably those mentioned above as preferred, is added to the at least one dampening solution in the at least one dampening unit.
the addition of the at least one inorganic additive can take place according to methods which are known in principle, for example by addition in the form of a solid or in the form of a solution, in particular an aqueous solution.
the at least one inorganic additive preferably those mentioned above as preferred, is added to the at least one fountain solution in the form of an aqueous solution.
the aqueous solution can be added to the dampening solution, for example, by automatically opening a valve that is connected to a reservoir containing the aqueous solution via a supply line.
the present invention relates to a dampening solution for an offset printing process which contains at least one of the substances magnesium sulfate and its hydrates and sodium bicarbonate in an amount of at least 0.5 g per 100 L dampening solution, preferably at least 5 g per 100 L dampening solution, particularly preferably at least 10 g per 100 L dampening solution and very particularly preferably at least 30 g per 100 L dampening solution.
Epsom salt 50 g were added to 100 l of a fountain solution which had been produced using Saphira® Fount 210 AR from Heidelberger Druckmaschinen AG, Heidelberg, Germany.
the fountain solution obtained was used in the dampening unit of a Speedmaster® offset printing press from Heidelberger Druckmaschinen AG, Heidelberg, Germany, during a print job of 6000 sheets of paper. After the print job was completed, the naked eye could only see small amounts of ink deposits in the printing unit on the blanket cylinder and impression cylinder. The print quality of the paper sheets was perfect.
Example 2 The same print job as in Example 1 was carried out, with the difference that no Epsom salt was added to the dampening solution. After the print job was completed, the naked eye could clearly see ink deposits in the printing unit on the blanket cylinder and impression cylinder. The print quality of the paper sheets was perfect.

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Printing Plates And Materials Therefor (AREA)

EP20193821.4A 2020-09-01 2020-09-01 Diminution de l'encadrement dans un procédé d'impression offset par ajout d'au moins un additif inorganique à l'agent hydratant Withdrawn EP3960480A1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
EP20193821.4A EP3960480A1 (fr)	2020-09-01	2020-09-01	Diminution de l'encadrement dans un procédé d'impression offset par ajout d'au moins un additif inorganique à l'agent hydratant

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP20193821.4A EP3960480A1 (fr)	2020-09-01	2020-09-01	Diminution de l'encadrement dans un procédé d'impression offset par ajout d'au moins un additif inorganique à l'agent hydratant

Publications (1)

Publication Number	Publication Date
EP3960480A1 true EP3960480A1 (fr)	2022-03-02

Family

ID=72322344

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP20193821.4A Withdrawn EP3960480A1 (fr)	2020-09-01	2020-09-01	Diminution de l'encadrement dans un procédé d'impression offset par ajout d'au moins un additif inorganique à l'agent hydratant

Country Status (1)

Country	Link
EP (1)	EP3960480A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4374036A (en) *	1980-04-16	1983-02-15	Michael A. Canale	Composition and concentrate useful for making a fountain solution for lithographic printing operations
EP0219719A1 (fr) *	1985-10-12	1987-04-29	DS-Druckerei Service	Composition de mouillage pour l'impression lithographique
EP0251621A2 (fr) *	1986-07-02	1988-01-07	Sun Chemical Corporation	Solution de mouillage et procédé d'impression l'utilisant
JPH05104877A (ja) *	1991-10-15	1993-04-27	Sakata Corp	平版印刷用湿し水組成物およびその使用方法
US5279648A (en) *	1992-11-24	1994-01-18	Press Color, Inc.	Fountain solution
EP1080943A1 (fr)	1999-09-06	2001-03-07	Fuji Photo Film Co., Ltd.	Composition de solution de mouillage pour plaque d'impression lithographique
DE10238874A1 (de)	2002-08-24	2004-03-04	Koenig & Bauer Ag	Verfahren und Vorrichtung zur Befeuchtung des Plattenzylinders, insbesondere bei alkoholarmen oder alkoholfreiem Druck
EP2233311A1 (fr)	2009-03-25	2010-09-29	Fujifilm Corporation	Composition de solution de fontaine pour impression lithographique et dispositif d'impression rotative à décalage thermofixé
WO2012061370A2 (fr)	2010-11-01	2012-05-10	Sun Chemical Corporation	Solutions de mouillage pour encres d'impression lithographique offset
CN111114165A (zh) *	2019-12-09	2020-05-08	宁波燕翔教育投资管理有限公司	一种保水成膜润版液

2020
- 2020-09-01 EP EP20193821.4A patent/EP3960480A1/fr not_active Withdrawn

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4374036A (en) *	1980-04-16	1983-02-15	Michael A. Canale	Composition and concentrate useful for making a fountain solution for lithographic printing operations
EP0219719A1 (fr) *	1985-10-12	1987-04-29	DS-Druckerei Service	Composition de mouillage pour l'impression lithographique
EP0251621A2 (fr) *	1986-07-02	1988-01-07	Sun Chemical Corporation	Solution de mouillage et procédé d'impression l'utilisant
JPH05104877A (ja) *	1991-10-15	1993-04-27	Sakata Corp	平版印刷用湿し水組成物およびその使用方法
US5279648A (en) *	1992-11-24	1994-01-18	Press Color, Inc.	Fountain solution
EP1080943A1 (fr)	1999-09-06	2001-03-07	Fuji Photo Film Co., Ltd.	Composition de solution de mouillage pour plaque d'impression lithographique
DE10238874A1 (de)	2002-08-24	2004-03-04	Koenig & Bauer Ag	Verfahren und Vorrichtung zur Befeuchtung des Plattenzylinders, insbesondere bei alkoholarmen oder alkoholfreiem Druck
EP2233311A1 (fr)	2009-03-25	2010-09-29	Fujifilm Corporation	Composition de solution de fontaine pour impression lithographique et dispositif d'impression rotative à décalage thermofixé
WO2012061370A2 (fr)	2010-11-01	2012-05-10	Sun Chemical Corporation	Solutions de mouillage pour encres d'impression lithographique offset
CN111114165A (zh) *	2019-12-09	2020-05-08	宁波燕翔教育投资管理有限公司	一种保水成膜润版液

Legal Events

Date	Code	Title	Description
2022-01-28	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
2022-01-28	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED
2022-03-02	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
2023-01-27	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
2023-03-01	18D	Application deemed to be withdrawn	Effective date: 20220903

Publication	Publication Date	Title
US4854969A (en)	1989-08-08	Lithographic fountain solutions
EP0249752B1 (fr)	1990-12-12	Solution de mouillage pour lithographie contenant un mélange de colloides
KR20130143695A (ko)	2013-12-31	급습액 및 급습액 농축물
DE2848927A1 (de)	1979-05-17	Behandlungsfluessigkeit fuer die oberflaechenbehandlung von lithographie- druckplatten
DE69122626T2 (de)	1997-04-24	Isopropylalkoholfreies katalytisches befeuchtungskonzentrat und verfahren zum einbringen eines katalytischen mittels in eine lithographische druckfarbe
DE60209172T2 (de)	2006-07-20	Feuchtmittelzusammensetzung für Flachdruckplatte und Flachdruckverfahren
EP3960480A1 (fr)	2022-03-02	Diminution de l'encadrement dans un procédé d'impression offset par ajout d'au moins un additif inorganique à l'agent hydratant
EP0522435B1 (fr)	1995-03-22	Concentré et solution de mouillage ainsi que leur utilisation dans l'impression offset
US5338344A (en)	1994-08-16	Decreasing alcohol content of fountain solutions for planographic printing
EP3325413A1 (fr)	2018-05-30	Procédé pour éviter la formation de taches de séchage et installation de lavage de véhicules
DE102005062373A1 (de)	2007-06-28	Verfahren zum Steuern einer Verarbeitungsmaschine für Bogenmaterial
JP2022084485A (ja)	2022-06-07	オフセット印刷用中性湿し水組成物、及び濃縮湿し水組成物
DE102005040011B4 (de)	2016-02-11	Verfahren zum Betreiben einer Druckmaschine
US5387279A (en)	1995-02-07	Lithographic dampening solution
EP0111136B1 (fr)	1989-07-12	Additif pour solution de mouillage pour l'impression lithographique
DE4424891C2 (de)	1997-04-17	Verfahren und Vorrichtung zur Durchführung dieses Verfahrens zum Einfärben einer "wasserlosen" Flachdruckplatte
DE1807647A1 (de)	1969-06-12	Verfahren zur Verbesserung der Druckeigenschaften von Flachdruckformen
DE69202895T3 (de)	1999-04-01	Feuchtmittelzusatz und Anwendung desselben.
DE102008003239A1 (de)	2008-08-07	Verfahren zum Betreiben eines Feuchtwerks einer Druckmaschine
DE102010048953A1 (de)	2012-04-19	Feuchtmittelzusatz für Offset-Druckmaschinen
EP0249751A2 (fr)	1987-12-23	Solution de mouillage pour lithographie contenant un mélange de polyols
DE557523C (de)	1932-08-24	Druckverfahren
DE10245219A1 (de)	2003-04-24	Befeuchtungszusammensetzung für den lithographischen Druck
JP3089065B2 (ja)	2000-09-18	湿し水の防黴、防藻及びバクテリアの発生防止方法
CH281459A (de)	1952-03-15	Verfahren zur Zufuhr von farbabstossendem Werkstoff zum Druckzylinder einer Flachdruckmaschine und zur Ausübung dieses Verfahrens geeignete Druckmaschine.