EP0522435B1 - Fountain concentrate and fountain solution as well as its use in offset-printing - Google Patents
Fountain concentrate and fountain solution as well as its use in offset-printing Download PDFInfo
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- EP0522435B1 EP0522435B1 EP92111145A EP92111145A EP0522435B1 EP 0522435 B1 EP0522435 B1 EP 0522435B1 EP 92111145 A EP92111145 A EP 92111145A EP 92111145 A EP92111145 A EP 92111145A EP 0522435 B1 EP0522435 B1 EP 0522435B1
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- 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 invention relates to a dampening solution concentrate and dampening solution and the use thereof in the offset printing process.
- offset printing aluminum plates which have a hydrophilic surface in the non-printing areas and carry a hydrophobic layer in the printing areas are usually clamped onto a printing cylinder. Hydrophilic and hydrophobic areas lie in one plane, which is why offset printing is also referred to as "flat printing".
- a dampening solution is required in addition to the printing ink, which serves to keep the non-printing areas hydrophilic, so that the printing ink is only accepted by the hydrophobic areas and transferred to the printing substrate via the rubber blanket.
- Various substances are usually added to the dampening solution to stabilize the offset printing process, e.g. should optimize the compatibility with the printing ink, the pH value or the viscosity, or minimize disturbances caused by water of different hardness.
- EPA 0251 621 describes an aqueous dampening solution or a dampening solution concentrate with substitutes for the isopropyl alcohol.
- the dampening solution additive and the alcohol substitute are added separately according to the examples (2-component system).
- the solution or the concentrate contains a hydrotrope to increase the solubility of surface-active agents.
- the precipitation of the very high-dose wetting agent should be prevented.
- the use of the hydrotropic compounds leads to the above-mentioned disturbances in the color / water balance.
- the amount of buffer substances can be 5-15% by weight.
- the compound of the formula C4H9-O [-CH2-CH2-O] n -H butoxyethanol in particular in an amount of 1-12% by weight, and also butyltriglycol, butyltetraglycol, butylpentaglycol alone or as a mixture be used.
- the additive mentioned under b) can consist of one or more of the substances gum arabic, polyethylene glycol and glycerin.
- the concentrate can additionally contain polyhydric alcohols as solubilizers and additional active ingredients as well as dyes.
- Another object of the invention is a dampening solution which comprises one of the aforementioned dampening solution concentrates and in which the components d) to f) of the dampening solution concentrate are coordinated with one another in such a way that the dampening solution adjusts to a surface tension of 30-50 mN / m.
- a dampening solution which is produced in a conventional manner from a dampening solution concentrate according to the invention.
- Buffer substances which can be used are, for example, di- and tri-carboxylic acids, such as citric acid or malic acid, mineral acids, such as phosphoric acid, alkali metal hydroxides, e.g. Sodium hydroxide or phosphates such as sodium dihydrogen phosphate or disodium hydrogen phosphate can be used.
- di- and tri-carboxylic acids such as citric acid or malic acid
- mineral acids such as phosphoric acid
- alkali metal hydroxides e.g. Sodium hydroxide or phosphates such as sodium dihydrogen phosphate or disodium hydrogen phosphate can be used.
- the water-soluble polysaccharides, polyglycols or polyhydric alcohols serve in particular to protect the printing form.
- isothiazolinones benzyl alcohol hemiformal, n-methylolchloroacetamide can be used as preservatives.
- the nonionic, low-foaming surfactants are commercially available, for example, under the following names: Surfynol 104 (tertiary acetylene glycol), Disponil LS2 (fatty alcohol ethoxylates) and marlosol (fatty acid ethoxylates).
- Surfynol 104 tertiary acetylene glycol
- Disponil LS2 fatty alcohol ethoxylates
- marlosol fatty acid ethoxylates
- the dampening solution is poured into the circulation system of a 2-color sheetfed press, type Heidelberg Speedmaster, and heated to about 12 ° C.
- Example 1 1.3kg of this mixture are mixed with 28.7kg of water. This mixture is used as described in Example 1. The materials according to Example 1 were used for the printing tests. With a water flow of 30-50%, the dampening solution led to high-quality printing.
- Example 1 The materials according to Example 1 were used for the printing tests.
- 1.3 parts by weight of citric acid, 0.25 parts by weight of disodium hydrogenphosphate, 0.3 parts by weight of caustic soda, 5 parts by weight of glycerol and 3 parts by weight of a preservative (Parmentol K50®) are dissolved in 66.2 parts by weight of water.
- 6 parts by weight of a mixture of 70% butyltriglycol, 20% butyltetraglycol and 10% butylpentaglycol, 3 parts by weight of 2-ethyl-1,3-hexanediol and 0.05 part by weight of the surfactant mixture according to component d) are added. Then 1.2kg of this mixture are mixed with 28.8kg of water.
- the dampening solution is poured into the circulation system of a 2-color sheetfed press, type Heidelberg Speedmaster, and tempered to about 12 ° C.
- citric acid 0.25 parts by weight of disodium hydrogenphosphate, 0.3 parts by weight of caustic soda, 5 parts by weight of glycerol and 3 parts by weight of a preservative (Parmentol K50®) are dissolved in 38 parts by weight of water. 4 parts by weight of butoxyethanol are added. 1.2kg of this mixture are mixed with 28.8kg of water.
- citric acid 0.25 part by weight of disodium hydrogenphosphate, 0.3 part by weight of caustic soda, 5 parts by weight of glycerol and 3 parts by weight are added to 38 parts by weight of water a preservative (Parmentol K50 ®) dissolved. For this, 3 parts by weight of 2-ethyl-1,3-hexanediol are added.
- citric acid 0.25 part by weight of disodium hydrogenphosphate, 0.3 part by weight of caustic soda, 5 parts by weight of glycerol and 3 parts by weight of a preservative (Parmentol K50®) are dissolved in 38 parts by weight of water.
- a surfactant mixture which contains tertiary acetylene glycols, EO, PO surfactants, fatty acid ethoxylates and fatty alcohol ethoxylates are added.
- the fountain solution did not provide satisfactory print quality. Even at maximum water flow, not only toning was observed, but also an emulsification of the color.
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- Printing Plates And Materials Therefor (AREA)
- Treating Waste Gases (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Abstract
Description
Die Erfindung betrifft ein Feuchtmittelkonzentrat und Feuchtmittel und die Verwendung derselben beim Offset-Druckverfahren.The invention relates to a dampening solution concentrate and dampening solution and the use thereof in the offset printing process.
Beim Offset-Druck werden üblicherweise Aluminiumplatten, die in den nichtdruckenden Bereichen eine hydrophile Oberfläche aufweisen und in den druckenden Bereichen eine hydrophobe Schicht tragen, auf einen Druckzylinder aufgespannt. Hydrophile und hydrophobe Bereiche liegen in einer Ebene, weshalb der Offsetdruck auch als "Flachdruck" bezeichnet wird. Beim Drucken wird zusätzlich zur Druckfarbe ein Feuchtmittel benötigt, das dazu dient, die nichtdruckenden Bereiche hydrophil zu halten, so daß die Druckfarbe nur von den hydrophoben Stellen angenommen und über das Gummituch auf den Bedruckstoff übertragen wird. Dem Feuchtmittel werden üblicherweise zur Stabilisierung des Offset-Druckprozesses verschiedenartige Substanzen beigegeben, die z.B. die Verträglichkeit mit der Druckfarbe, den pH-Wert, oder die Viskosität optimieren sollen, bzw. Störungen, die durch unterschiedlich hartes Wasser hervorgerufen werden, minimieren sollen. Weitere Substanzen in herkömmlichen Feuchtmittelzusätzen dienen dazu den Schutz der Platte zu bewirken, sowie mikrobiellen Befall des Systems zu verhindern. Bei Maschinenkonstruktionen mit sogenannten Alkoholfeuchtwerken wird dem Feuchtmittel neben einem konventionellen Feuchtmittelzusatz Isopropylalkohol zugegeben. Dieser Alkohol hat die Aufgabe, eine optimale Benetzung der Druckform sicherzustellen und somit die erforderliche Druckqualität zu gewährleisten.In offset printing, aluminum plates which have a hydrophilic surface in the non-printing areas and carry a hydrophobic layer in the printing areas are usually clamped onto a printing cylinder. Hydrophilic and hydrophobic areas lie in one plane, which is why offset printing is also referred to as "flat printing". When printing, a dampening solution is required in addition to the printing ink, which serves to keep the non-printing areas hydrophilic, so that the printing ink is only accepted by the hydrophobic areas and transferred to the printing substrate via the rubber blanket. Various substances are usually added to the dampening solution to stabilize the offset printing process, e.g. should optimize the compatibility with the printing ink, the pH value or the viscosity, or minimize disturbances caused by water of different hardness. Other substances in conventional dampening solution additives serve to protect the plate and to prevent microbial contamination of the system. In machine designs with so-called alcohol dampening systems, isopropyl alcohol is added to the dampening solution in addition to a conventional dampening solution additive. This alcohol has the task of ensuring optimal wetting of the printing form and thus ensuring the required print quality.
Aus Gründen des Umweltschutzes, der Arbeitsplatzhygiene und der Kosteneinsparung ist man bestrebt, Feuchtmittelzusammensetzungen zu entwickeln, die ein Drucken ohne Isopropylalkohol ermöglichen.For reasons of environmental protection, workplace hygiene and In order to save costs, efforts are being made to develop fountain solution compositions which enable printing without isopropyl alcohol.
Bei der Auswahl bzw. der Formulierung von Alkoholersatzstoffen ergaben sich jedoch schwerwiegende Probleme bezüglich ihres Einflusses auf das Farb/Wasser-Gleichgewicht bzw. hinsichtlich der Wasseraufnahme der Farbe. Eine Vielzahl von Alkoholersatzstoffen führt zu einer erhöhten Wasseraufnahme der Farbe, woraus erhebliche drucktechnische Probleme, wie beispielsweise Emulgieren und Tonen folgen.When selecting or formulating alcohol substitutes, however, there were serious problems with regard to their influence on the color / water balance or with regard to the water absorption of the color. A large number of alcohol substitutes leads to an increased water absorption of the ink, which results in considerable printing problems, such as emulsification and toning.
Die EPA 0251 621 beschreibt eine wäßrige Feuchtmittellösung bzw. ein Feuchtmittellösungskonzentrat mit Ersatzstoffen für den Isopropylalkohol. Dabei werden der Feuchtmittelzusatz und der Alkoholersatz, gemäß den Beispielen, getrennt zugegeben (2-Komponenten-System). Desweiteren enthält die Lösung bzw. das Konzentrat ein Hydrotrop um die Löslichkeit oberflächenaktiver Mittel zu erhöhen. Dabei soll im fertigen Feuchtmittel die Ausfällung des sehr hoch dosierten Netzmittels verhindert werden. Der Einsatz der hydrotropen Verbindungen führt jedoch zu den oben erwähnten Störungen des Farb/Wasser-Gleichgewichts.EPA 0251 621 describes an aqueous dampening solution or a dampening solution concentrate with substitutes for the isopropyl alcohol. The dampening solution additive and the alcohol substitute are added separately according to the examples (2-component system). Furthermore, the solution or the concentrate contains a hydrotrope to increase the solubility of surface-active agents. In the finished dampening solution, the precipitation of the very high-dose wetting agent should be prevented. However, the use of the hydrotropic compounds leads to the above-mentioned disturbances in the color / water balance.
Desweiteren führen solche 2-Komponenten-Systeme, bei denen das Feuchtmittel aus einem konventionellen Feuchtmittelzusatz und einem getrennt zu dosierenden Alkoholersatzstoff bereitet werden muß, zu Schwierigkeiten. Dies insbesondere deshalb, weil eine solche Vorgehensweise mit den derzeit im Einsatz befindlichen automatischen Dosieranlagen nicht möglich ist. Die Druckereien müßten entsprechend neu ausgerüstet werden.Furthermore, such 2-component systems in which the dampening solution has to be prepared from a conventional dampening solution additive and an alcohol substitute to be metered separately lead to difficulties. This is particularly so because such a procedure is not possible with the automatic dosing systems currently in use. The printers would have to be re-equipped accordingly.
Auch die US-P 4 278 467 beschreibt ein Feuchtmittel mit einem Ersatzstoff für Isopropylalkohol, das jedoch als 2-Komponenten-System vorliegt.US Pat. No. 4,278,467 also describes a dampening solution with a Substitute for isopropyl alcohol, which is however available as a two-component system.
Ein weiteres Problem bei der Rezeptierung isopropylalkoholfreier Feuchtmittel bestand darin, daß die nur begrenzt wasserlöslichen Alkoholersatzstoffe mit den übrigen Rezepturbestandteilen häufig nicht mischbar bzw. verträglich sind. Dies wurde, wie beispielsweise in der EPA 0251 621 beschrieben, durch den Einsatz von Hydrotropen bzw. Emulgatoren zu lösen versucht. Diese Zusatzstoffe führen jedoch zu den oben erwähnten Schwierigkeiten, so daß der Einsatz dieser Stoffe in Feuchtmittelkreisläufen im allgemeinen nicht möglich ist.Another problem with the formulation of isopropyl alcohol-free dampening solutions was that the alcohol substitutes, which were only water-soluble to a limited extent, were frequently not miscible or compatible with the other formulation components. As described for example in EPA 0251 621, this was attempted to be solved by using hydrotropes or emulsifiers. However, these additives lead to the difficulties mentioned above, so that the use of these substances in dampening solution circuits is generally not possible.
Ein weiteres Problem bei der Rezeptierung isopropylalkoholfreier Einkomponenten-Systeme bestand darin, daß Butoxyethanol als Alkoholersatzstoff in höheren Konzentrationen (etwa über 1%, bezogen auf das Gesamtfeuchtmittel) zu einer vorzeitigen Zerstörung der Kopierschicht der Druckplatten führen kann.Another problem with the formulation of isopropyl alcohol-free one-component systems was that butoxyethanol as an alcohol substitute in higher concentrations (about 1%, based on the total dampening solution) can lead to premature destruction of the copying layer of the printing plates.
Schließlich ist bei der Rezeptierung zu berücksichtigen, daß ein Feuchtmittel nur einen speziellen Wertebereich für die dynamische Oberflächenspannung aufweisen darf.Finally, when formulating, it must be taken into account that a dampening solution may only have a specific value range for the dynamic surface tension.
Aufgabe der vorliegenden Erfindung ist es daher insbesondere ein Feuchtmittel als Einkomponenten-System für den Offset-Druck zur Verfügung zu stellen, das isopropylalkoholfrei ist, die genannten Nachteile nicht aufweist und dennoch zu einer mit dem Einsatz von isopropylalkoholhaltigen Feuchtmitteln vergleichbaren Druckqualität führt.It is therefore an object of the present invention to provide, in particular, a dampening solution as a one-component system for offset printing which is isopropyl alcohol-free, does not have the disadvantages mentioned and nevertheless leads to a print quality comparable to the use of dampening solutions containing isopropyl alcohol.
Diese Aufgabe wird erfindungsgemäß durch ein Feuchtmittelkonzentrat gelöst, das im wesentlichen folgende Komponenten enthält:
- a) 1-15 Gew.-% Puffersubstanzen,
- b) 2-20 Gew.-% eines Zusatzes, bestehend aus einer oder mehrerer der Substanzen wasserlösliche Polysaccharide, Polyglykole und mehrwertige Alkohole,
- c) 2-10 Gew.-% Konservierungsmittel,
- d) 0,01-5 Gew.-% nichtionisches, schaumarmes Tensid, bestehend aus einer oder mehrerer der Substanzen Tertiäracetylenglykol, Ethylenoxid-, Propylenoxid-Tensid, Fettalkoholethoxylate, Fettsäureethoxylate und Siloxanalkoxylate,
- e) 1-35 Gew.-% einer Verbindung der Formel
C₄H₉-O[-CH₂-CH₂-O]n-H,
wobei n eine ganze Zahl von 1 bis 10 bedeutet, oder eine Mischung dieser Verbindungen, - f) 0,1-10 Gew.-% 2-Ethyl-1,3-Hexandiol und
- g) 25-90 Gew.-% Wasser.
- a) 1-15% by weight of buffer substances,
- b) 2-20% by weight of an additive consisting of one or more of the substances water-soluble polysaccharides, polyglycols and polyhydric alcohols,
- c) 2-10% by weight of preservative,
- d) 0.01-5% by weight of nonionic, low-foam surfactant, consisting of one or more of the substances tertiary acetylene glycol, ethylene oxide, propylene oxide surfactant, fatty alcohol ethoxylates, fatty acid ethoxylates and siloxane alkoxylates,
- e) 1-35% by weight of a compound of the formula
C₄H₉-O [-CH₂-CH₂-O] n -H,
where n is an integer from 1 to 10, or a mixture of these compounds, - f) 0.1-10% by weight of 2-ethyl-1,3-hexanediol and
- g) 25-90% by weight water.
In einer besonderen Ausführungsform der Erfindung kann die Menge an Puffersubstanzen 5-15 Gew.-% betragen.In a particular embodiment of the invention, the amount of buffer substances can be 5-15% by weight.
In einer weiteren speziellen Ausführungsform kann als Verbindung der Formel C₄H₉-O[-CH₂-CH₂-O]n-H Butoxyethanol, insbesondere in einer Menge von 1-12 Gew.-%, sowie Butyltriglykol, Butyltetraglykol, Butylpentaglykol allein oder als Mischung, eingesetzt werden.In a further special embodiment, the compound of the formula C₄H₉-O [-CH₂-CH₂-O] n -H butoxyethanol, in particular in an amount of 1-12% by weight, and also butyltriglycol, butyltetraglycol, butylpentaglycol alone or as a mixture be used.
Der unter b) genannte Zusatz kann aus einer oder mehrerer der Substanzen Gummiarabikum, Polyethylenglykol und Glycerin bestehen.The additive mentioned under b) can consist of one or more of the substances gum arabic, polyethylene glycol and glycerin.
Das Konzentrat kann zusätzlich mehrwertige Alkohole als Lösungsvermittler und Zusatzwirkstoffe sowie Farbstoffe enthalten.The concentrate can additionally contain polyhydric alcohols as solubilizers and additional active ingredients as well as dyes.
Ein weiterer Gegenstand der Erfindung ist ein Feuchtmittel, das eines der vorgenannten Feuchtmittelkonzentrate umfaßt und bei dem die Komponenten d) bis f) des Feuchtmittelkonzentrates so aufeinander abgestimmt sind, daß das Feuchtmittel sich auf eine Oberflächenspannung von 30-50mN/m einstellt. Dies ist bei einem Feuchtmittel, das aus einem erfindungsgemäßen Feuchtmittelkonzentrat in üblicher Weise hergestellt wird, der Fall.Another object of the invention is a dampening solution which comprises one of the aforementioned dampening solution concentrates and in which the components d) to f) of the dampening solution concentrate are coordinated with one another in such a way that the dampening solution adjusts to a surface tension of 30-50 mN / m. This is the case with a dampening solution which is produced in a conventional manner from a dampening solution concentrate according to the invention.
Wegen der hohen Maschinengeschwindigkeiten ist für die Messung der Oberflächenspannung eine dynamische Methode zu wählen. Oberflächentensiometer sind daher nicht geeignet.Due to the high machine speeds, a dynamic method should be selected for the measurement of the surface tension. Surface tensiometers are therefore not suitable.
Als Puffersubstanzen können beispielsweise Di- und Tri-Carbonsäuren, wie Zitronensäure oder Äpfelsäure, Mineralsäuren, wie Phosphorsäure, Alkalihydroxide, wie z.B. Natriumhydroxid oder Phosphate wie Natriumdihydrogenphosphat oder Dinatriumhydrogenphosphat eingesetzt werden.Buffer substances which can be used are, for example, di- and tri-carboxylic acids, such as citric acid or malic acid, mineral acids, such as phosphoric acid, alkali metal hydroxides, e.g. Sodium hydroxide or phosphates such as sodium dihydrogen phosphate or disodium hydrogen phosphate can be used.
Die wasserlöslichen Polysaccharide, Polyglykole oder mehrwertigen Alkohole dienen insbesondere dem Schutz der Druckform.The water-soluble polysaccharides, polyglycols or polyhydric alcohols serve in particular to protect the printing form.
Als Konservierungsmittel können beispielsweise Isothiazolinone, Benzylalkoholhemiformal, n-Methylolchloracetamid verwendet werden.For example, isothiazolinones, benzyl alcohol hemiformal, n-methylolchloroacetamide can be used as preservatives.
Die nichtionischen, schaumarmen Tenside sind beispielsweise unter folgenden Namen im Handel: Surfynol 104 (Tertiäracetylenglykol), Disponil LS2 (Fettalkoholethoxylate) und Marlosol (Fettsäureethoxylate). Die besonders vorteilhaften Wirkungen des Feuchtmittelkonzentrates werden durch nachfolgende Beispiele näher erläutert, wobei die Vergleichsbeispiele belegen, daß erst durch das gezielte Zusammenwirken der Einzelkomponenten, entsprechend dem erfindungsgemäßen Feuchtmittelkonzentrat, die vorteilhaften Wirkungen des Erfindungsgegenstandes erzielt werden können.The nonionic, low-foaming surfactants are commercially available, for example, under the following names: Surfynol 104 (tertiary acetylene glycol), Disponil LS2 (fatty alcohol ethoxylates) and marlosol (fatty acid ethoxylates). The particularly advantageous effects of the dampening solution concentrate are explained in more detail by the following examples, the comparative examples proving that only through the targeted interaction of the individual components the dampening solution concentrate according to the invention, the advantageous effects of the subject matter of the invention can be achieved.
In 66,2 Gewichtsteilen Wasser werden 1,3 Gewichtsteile Zitronensäure, 0,25 Gewichtsteile Dinatriumhydrogenphosphat, 0,3 Gewichtsteile Ätznatron, 5 Gewichtsteile Glycerin und 3 Gewichtsteile eines Konservierungsmittels (Parmentol K50 ®) gelöst. Hierzu werden 4 Gewichtsteile Butoxyethanol, 3 Gewichtsteile 2-Ethyl-1,3-Hexandiol und 0,05 Gewichtsteile der Tensidmischung gemäß Komponente d) gegeben.
Anschließend werden 1,2kg dieser Mischung mit 28,8kg Wasser gemischt.1.3 parts by weight of citric acid, 0.25 parts by weight of disodium hydrogenphosphate, 0.3 parts by weight of caustic soda, 5 parts by weight of glycerol and 3 parts by weight of a preservative (Parmentol K50®) are dissolved in 66.2 parts by weight of water. 4 parts by weight of butoxyethanol, 3 parts by weight of 2-ethyl-1,3-hexanediol and 0.05 part by weight of the surfactant mixture according to component d) are added.
Then 1.2kg of this mixture are mixed with 28.8kg of water.
Das Feuchtmittel wird in das Umlaufsystem einer 2-Farben-Bogenmaschine, Typ Heidelberger Speedmaster, eingefüllt und auf etwa 12°C temperiert.The dampening solution is poured into the circulation system of a 2-color sheetfed press, type Heidelberg Speedmaster, and heated to about 12 ° C.
Die Druckversuche wurden mit folgenden Materialien durchgeführt:
- Farbe:
- Universa 6000 ® R, Hersteller Hostmann-Steinberg
- Druckplatte:
- Basis eloxiertes Aluminium, Typ T 7, Hersteller Eggen
- Papier:
- CRS (beidseitig gestrichenes Papier, Hersteller MD)
- Colour:
- Universa 6000 ® R, manufacturer Hostmann-Steinberg
- Printing plate:
- Base anodized aluminum, type T 7, manufacturer Eggen
- Paper:
- CRS (coated paper on both sides, manufacturer MD)
In 66,2 Gewichtsteilen Wasser werden 1,5 Gewichtsteile Zitronensäure, 0,4 Gewichtsteile Dinatriumhydrogenphosphat, 6 Gewichtsteile Glycerin und 3 Gewichtsteile eines Konservierungsmittels (Parmentol K50 ®) gelöst. Hierzu werden 8 Gewichtsteile 2-Ethyl-1,3-Hexandiol, 2 Gewichtsteile Butoxyethanol, 0,01 Gewichtsteile der genannten Tensidmischung gegeben.1.5 parts by weight of citric acid, 0.4 parts by weight of disodium hydrogenphosphate, 6 parts by weight of glycerol and 3 parts by weight of a preservative (Parmentol K50®) are dissolved in 66.2 parts by weight of water. 8 parts by weight of 2-ethyl-1,3-hexanediol, 2 parts by weight of butoxyethanol and 0.01 part by weight of the surfactant mixture mentioned are added.
1,3kg dieser Mischung werden mit 28,7kg Wasser gemischt.
Diese Mischung wird, wie in Beispiel 1 beschrieben, eingesetzt. Für die Druckversuche wurden die Materialien entsprechend Beispiel 1 eingesetzt.
Das Feuchtmittel führte bei einer Wasserführung von 30-50% zu einem qualitativ hochwertigen Druck.1.3kg of this mixture are mixed with 28.7kg of water.
This mixture is used as described in Example 1. The materials according to Example 1 were used for the printing tests.
With a water flow of 30-50%, the dampening solution led to high-quality printing.
In 63,8 Gewichtsteilen Wasser werden 1,1 Gewichtsteile Zitronensäure, 0,2 Gewichtsteile Dinatriumhydrogenphosphat, 0,1 Gewichtsteile Ätznatron, 7 Gewichtsteile Glycerin und 4 Gewichtsteile eines Konservierungsmittels (Parmentol K50 ®) gelöst. Hierzu werden 6 Gewichtsteile Butoxyethanol, 4 Gewichtsteile 2-Ethyl-1,3-Hexandiol und 0,02 Gewichtsteile der genannten Tensidmischung gegeben.
Anschließend werden 1,9kg dieser Mischung mit 28,1kg Wasser gemischt.
Diese Mischung wird, wie in Beispiel 1 beschrieben, eingesetzt. Für die Druckversuche wurden die Materialien entsprechend Beispiel 1 eingesetzt.
Das Feuchtmittel führte bei einer Wasserführung von 30-50% zu einem qualitativ hochwertigen Druck.In 63.8 parts by weight of water, 1.1 parts by weight of citric acid, 0.2 part by weight of disodium hydrogenphosphate, 0.1 part by weight of caustic soda, 7 parts by weight of glycerol and 4 parts by weight of a preservative (Parmentol K50®) are dissolved. 6 parts by weight of butoxyethanol, 4 parts by weight of 2-ethyl-1,3-hexanediol and 0.02 part by weight of the surfactant mixture mentioned are added.
Then 1.9 kg of this mixture are mixed with 28.1 kg of water.
This mixture is used as described in Example 1. The materials according to Example 1 were used for the printing tests.
With a water flow of 30-50%, the dampening solution led to high-quality printing.
In 66 Gewichtsteilen Wasser werden 1,8 Gewichtsteile Äpfelsäure, 0,35 Gewichtsteile Dinatriumhydrogenphosphat, 2 Gewichtsteile Gummiarabikum, 3 Gewichtsteile eines Konservierungsmittels (Parmentol K50 ®) gelöst. Hierzu werden 3 Gewichtsteile Butoxyethanol, 2 Gewichtsteile 2-Ethyl-1,3-Hexandiol und 0,03 Gewichtsteile der genannten Tensidmischung gegeben.
Anschließend werden 2kg dieser Mischung mit 28kg Wasser gemischt.
Das Feuchtmittel wird in das Umlaufsystem einer 2-Farben-Bogenmaschine, Typ Roland Rekord eingefüllt und auf etwa 13°C temperiert.1.8 parts by weight of malic acid, 0.35 parts by weight of disodium hydrogenphosphate, 2 parts by weight of gum arabic, 3 parts by weight of a preservative (Parmentol K50®) are dissolved in 66 parts by weight of water. 3 parts by weight of butoxyethanol, 2 parts by weight of 2-ethyl-1,3-hexanediol and 0.03 part by weight of the surfactant mixture mentioned are added.
Then 2kg of this mixture are mixed with 28kg of water.
The dampening solution is filled into the circulation system of a 2-color sheetfed press, type Roland Rekord, and tempered to about 13 ° C.
Für die Druckversuche wurden die Materialien entsprechend Beispiel 1 eingesetzt.The materials according to Example 1 were used for the printing tests.
Das Feuchtmittel führte bei einer Wasserführung von 30-50% zu einem qualitativ hochwertigen Druck.With a water flow of 30-50%, the dampening solution led to high-quality printing.
In 66,2 Gewichtsteilen Wasser werden 1,3 Gewichtsteile Zitronensäure, 0,25 Gewichtsteile Dinatriumhydrogenphosphat, 0,3 Gewichtsteile Ätznatron, 5 Gewichtsteile Glycerin und 3 Gewichtsteile eines Konservierungsmittels (Parmentol K50 ®) gelöst. Hierzu werden 4 Gewichtsteile Butyltriglykol, 3 Gewichtsteile 2-Ethyl-1,3-Hexandiol und 0,05 der Gewichtsteile der Tensidmischung gemäß Komponente d) gegeben.
Anschließend werden 1,2kg dieser Mischung mit 28,8kg Wasser gemischt.
Das Feuchtmittel wird in das Umlaufsystem einer 2-Farben-Bogenmaschine, Typ Heidelberger Speedmaster eingefüllt und auf etwa 12°C temperiert.1.3 parts by weight of citric acid, 0.25 parts by weight of disodium hydrogenphosphate, 0.3 parts by weight of caustic soda, 5 parts by weight of glycerol and 3 parts by weight of a preservative (Parmentol K50®) are dissolved in 66.2 parts by weight of water. 4 parts by weight of butyl triglycol, 3 parts by weight of 2-ethyl-1,3-hexanediol and 0.05 part by weight of the surfactant mixture according to component d) are added.
Then 1.2kg of this mixture are mixed with 28.8kg of water.
The dampening solution is filled into the circulation system of a 2-color sheet press, type Heidelberg Speedmaster, and approximately Tempered at 12 ° C.
Die Druckversuche wurden mit folgenden Materialien durchgeführt:
- Farbe:
- ALPHA 4300
- Druckplatte:
- Basis eloxiertes Aluminium, Typ T 7, Hersteller Eggen
- Papier:
- Ratio 100 g/m² Kunstdruckpapier
- Colour:
- ALPHA 4300
- Printing plate:
- Base anodized aluminum, type T 7, manufacturer Eggen
- Paper:
- Ratio 100 g / m² art paper
In 66,2 Gewichtsteilen Wasser werden 1,3 Gewichtsteile Zitronensäure, 0,25 Gewichtsteile Dinatriumhydrogenphosphat, 0,3 Gewichtsteile Ätznatron, 5 Gewichtsteile Glycerin und 3 Gewichtsteile eines Konservierungsmittels (Parmentol K50 ®) gelöst. Hierzu werden 6 Gewichtsteile einer Mischung aus 70% Butyltriglykol, 20% Butyltetraglykol und 10% Butylpentaglykol, 3 Gewichtsteile 2-Ethyl-1,3-Hexandiol und 0,05 der Gewichtsteile der Tensidmischung gemäß Komponente d) gegeben.
Anschließend werden 1,2kg dieser Mischung mit 28,8kg Wasser gemischt.
Das Feuchtmittel wird in das Umlaufsystem einer 2-Farben-Bogenmaschine, Typ Heidelberger Speedmaster eingefüllt und auf etwa 12°C temperiert.1.3 parts by weight of citric acid, 0.25 parts by weight of disodium hydrogenphosphate, 0.3 parts by weight of caustic soda, 5 parts by weight of glycerol and 3 parts by weight of a preservative (Parmentol K50®) are dissolved in 66.2 parts by weight of water. 6 parts by weight of a mixture of 70% butyltriglycol, 20% butyltetraglycol and 10% butylpentaglycol, 3 parts by weight of 2-ethyl-1,3-hexanediol and 0.05 part by weight of the surfactant mixture according to component d) are added.
Then 1.2kg of this mixture are mixed with 28.8kg of water.
The dampening solution is poured into the circulation system of a 2-color sheetfed press, type Heidelberg Speedmaster, and tempered to about 12 ° C.
Die Druckversuche wurden mit folgenden Materialien durchgeführt:
- Farbe:
- REFLECTA FW 8000
- Druckplatte:
- Basis eloxiertes Aluminium, Typ T 7, Hersteller Eggen
- Papier:
- Phoenogrand 135g/m²
- Colour:
- REFLECTA FW 8000
- Printing plate:
- Base anodized aluminum, type T 7, Manufacturer Harrows
- Paper:
- Phoenogrand 135g / m²
In 38 Gewichtsteilen Wasser werden 1,3 Gewichtsteile Zitronensäure, 0,25 Gewichtsteile Dinatriumhydrogenphosphat, 0,3 Gewichtsteile Ätznatron, 5 Gewichtsteile Glycerin und 3 Gewichtsteile eines Konservierungsmittels (Parmentol K50 ®) gelöst. Hierzu werden 4 Gewichtsteile Butoxyethanol gegeben.
1,2kg dieser Mischung werden mit 28,8kg Wasser versetzt.1.3 parts by weight of citric acid, 0.25 parts by weight of disodium hydrogenphosphate, 0.3 parts by weight of caustic soda, 5 parts by weight of glycerol and 3 parts by weight of a preservative (Parmentol K50®) are dissolved in 38 parts by weight of water. 4 parts by weight of butoxyethanol are added.
1.2kg of this mixture are mixed with 28.8kg of water.
Anschließend wird wie in Beispiel 1 verfahren.The procedure is then as in Example 1.
Die so erhaltenen Drucke liefern keine zufriedenstellende Druckqualität. Selbst bei maximaler Wasserführung entsprechend 100% (Standard mit Isopropylalkohol ca. 30%) treten drucktechnische Probleme, nämlich Tonen auf.The prints thus obtained do not provide satisfactory print quality. Even with maximum water flow corresponding to 100% (standard with isopropyl alcohol approx. 30%), there are printing problems, namely toning.
In 38 Gewichtsteilen Wasser werden 1,3 Gewichtsteile Zitronensäure, 0,25 Gewichtsteile Dinatriumhydrogenphosphat, 0,3 Gewichtsteile Ätznatron, 5 Gewichtsteile Glycerin und 3 Gewichtsteile eines Konservierungsmittels (Parmentol K50 ®) gelöst. Hierzu werden 3 Gewichtsteile 2-Ethyl-1,3-Hexandiol gegeben.1.3 parts by weight of citric acid, 0.25 part by weight of disodium hydrogenphosphate, 0.3 part by weight of caustic soda, 5 parts by weight of glycerol and 3 parts by weight are added to 38 parts by weight of water a preservative (Parmentol K50 ®) dissolved. For this, 3 parts by weight of 2-ethyl-1,3-hexanediol are added.
1,2kg dieser Mischung werden mit 28,8kg Wasser versetzt.1.2kg of this mixture are mixed with 28.8kg of water.
Anschließend wird wie in Beispiel 1 verfahren.The procedure is then as in Example 1.
Die Drucke führten zu keiner befriedigenden Druckqualität. Selbst bei maximaler Wasserführung führte das Feuchtmittel nur zum Tonen.The prints did not lead to a satisfactory print quality. Even with maximum water flow, the dampening solution only led to toning.
In 38 Gewichtsteilen Wasser werden 1,3 Gewichtsteile Zitronensäure, 0,25 Gewichtsteile Dinatriumhydrogenphosphat, 0,3 Gewichtsteile Ätznatron, 5 Gewichtsteile Glycerin und 3 Gewichtsteile eines Konservierungsmittels (Parmentol K50 ®) gelöst. Hierzu werden 0,25 Gewichtsteile einer Tensidmischung, die Tertiäracetylenglykole, EO-, PO-Tenside, Fettsäureethoxylate und Fettalkoholethoxylate enthält, zugegeben.1.3 parts by weight of citric acid, 0.25 part by weight of disodium hydrogenphosphate, 0.3 part by weight of caustic soda, 5 parts by weight of glycerol and 3 parts by weight of a preservative (Parmentol K50®) are dissolved in 38 parts by weight of water. For this purpose, 0.25 parts by weight of a surfactant mixture which contains tertiary acetylene glycols, EO, PO surfactants, fatty acid ethoxylates and fatty alcohol ethoxylates are added.
1,2kg dieser Mischung werden mit 28,8kg Wasser gemischt.1.2kg of this mixture are mixed with 28.8kg of water.
Anschließend wird wie in Beispiel 1 verfahren.The procedure is then as in Example 1.
Das Feuchtmittel lieferte keine zufriedenstellende Druckqualität. Selbst bei maximaler Wasserführung wurde nicht nur Tonen beobachtet, sondern zusätzlich ein Emulgieren der Farbe.The fountain solution did not provide satisfactory print quality. Even at maximum water flow, not only toning was observed, but also an emulsification of the color.
Claims (8)
- Fountain concentrate, characterized in that it essentially containsa) 1-15 % by weight of buffer substances,b) 2-20 % by weight of an additive consisting of one or more of the substances water-soluble polysaccharides, polyglycols and polyhydric alcohols,c) 2-10 % by weight of preservative,d) 0.01-5 % by weight of a nonionic low-foaming surfactant, consisting of one or more of the substances tertiary acetylene glycol, ethylene oxide surfactant, propylene oxide surfactant, fatty alcohol ethoxylates, fatty acid ethoxylates and siloxane alkoxylates,e) 1-35 % by weight of a compound of the formula
C₄H₉-O[-CH₂-CH₂-O]n-H,
n being an integer from 1 to 10, or a mixture of these compounds,f) 0.1-10 % by weight of 2-ethyl-1,3-hexanediol andg) 25-90 % by weight of water. - Fountain concentrate according to Claim 1, characterized in that the buffer substances are present in a quantity of 5-15 % by weight.
- Fountain concentrate according to Claim 1 or 2, characterized in that it contains butoxyethanol as the compound of the formula
C₄H₉-O[-CH₂-CH₂-O]n-H.
- Fountain concentrate according to Claim 3, characterized in that it contains butoxyethanol in a quantity of 1-12 % by weight.
- Fountain concentrate according to one of Claims 1 to 4, characterized in that the additive consists of one or more of the substances gum arabic, polyethylene glycol and glycerol.
- Fountain concentrate according to one of Claims 1 to 5, characterized in that it additionally contains polyhydric alcohols.
- Fountain solution, comprising the fountain concentrate according to one of Claims 1 to 6, characterized in that the components d) to f) of the fountain concentrate are mutually matched in such a way that the fountain solution is adjusted to a surface tension of 30-50 mN/m.
- Use of a concentrate according to one of Claims 1 to 6 or of a fountain solution according to Claim 7 in offset printing.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4122233 | 1991-07-04 | ||
| DE4122233 | 1991-07-04 | ||
| DE4220550A DE4220550A1 (en) | 1991-07-04 | 1992-06-24 | FUMENT LIQUID CONCENTRATE AND FUMENT LIQUID AND THEIR USE IN THE OFFSET PRINTING PROCESS |
| DE4220550 | 1992-06-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0522435A1 EP0522435A1 (en) | 1993-01-13 |
| EP0522435B1 true EP0522435B1 (en) | 1995-03-22 |
Family
ID=25905231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92111145A Expired - Lifetime EP0522435B1 (en) | 1991-07-04 | 1992-07-01 | Fountain concentrate and fountain solution as well as its use in offset-printing |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5282892A (en) |
| EP (1) | EP0522435B1 (en) |
| AT (1) | ATE120133T1 (en) |
| AU (1) | AU651703B2 (en) |
| DE (2) | DE4220550A1 (en) |
| DK (1) | DK0522435T3 (en) |
| ES (1) | ES2072056T3 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5695550A (en) * | 1996-08-12 | 1997-12-09 | Ink, Inc. | Fountain solution composition |
| US5897693A (en) * | 1997-06-10 | 1999-04-27 | Fuji Hunt Photographic Chemicals, Inc. | Free-flowable powder lithographic fountain solution concentrate and method of use |
| JP2003170673A (en) * | 2001-09-28 | 2003-06-17 | Fuji Photo Film Co Ltd | Dampening water composition for lithographic printing plate and method of lithographic printing |
| US20030190557A1 (en) * | 2002-04-08 | 2003-10-09 | Lee Christian John | Self-dampening ink compositions and method for lithographic printing using the same |
| CN104139628A (en) * | 2014-07-03 | 2014-11-12 | 合肥环照高分子材料厂 | Offset printing fountain solution and preparation method thereof |
| CN104085216B (en) * | 2014-07-05 | 2016-06-22 | 安徽索亚装饰材料有限公司 | A kind of low foam fountain solution and preparation method thereof |
| CN104070874A (en) * | 2014-07-05 | 2014-10-01 | 安徽索亚装饰材料有限公司 | Efficient environment-friendly fountain solution and preparation method for same |
| CN104085220A (en) * | 2014-07-05 | 2014-10-08 | 安徽索亚装饰材料有限公司 | Corrosion and scale inhibition fountain solution and preparation method thereof |
| CN104070873B (en) * | 2014-07-05 | 2016-06-08 | 安徽索亚装饰材料有限公司 | A kind of protection against corrosion fountain solution and its preparation method |
| CN104908475A (en) * | 2015-07-11 | 2015-09-16 | 倪娉娉 | Environmental friendly nonionic surfactant fountain solution |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4278467A (en) * | 1978-09-11 | 1981-07-14 | Graphic Arts Technical Foundation | Substitutive additives for isopropyl alcohol in fountain solution for lithographic offset printing |
| CA1228204A (en) * | 1982-03-29 | 1987-10-20 | Richard J. Burns | Fountain solution |
| US4641579A (en) * | 1982-05-13 | 1987-02-10 | R. R. Donnelley & Sons Company | Printing fountain solution |
| DE3536485A1 (en) * | 1985-10-12 | 1987-04-16 | Merck Patent Gmbh | DAMPENER FOR OFFSET PRINTING |
| EP0249751A3 (en) * | 1986-06-16 | 1988-03-23 | Hoechst Celanese Corporation | Feuchtmittel mit einem darin enthaltenen polyolgemisch |
| CA1305296C (en) * | 1986-07-02 | 1992-07-21 | Robert Bassemir | Fountain solutions |
| US4854969A (en) * | 1986-07-02 | 1989-08-08 | Sun Chemical Corporation | Lithographic fountain solutions |
| DE4014960A1 (en) * | 1990-05-10 | 1991-11-14 | Hoechst Ag | DAMPENER FOR OFFSET PRINTING |
-
1992
- 1992-06-24 DE DE4220550A patent/DE4220550A1/en not_active Ceased
- 1992-07-01 DE DE59201712T patent/DE59201712D1/en not_active Expired - Fee Related
- 1992-07-01 EP EP92111145A patent/EP0522435B1/en not_active Expired - Lifetime
- 1992-07-01 AT AT92111145T patent/ATE120133T1/en not_active IP Right Cessation
- 1992-07-01 ES ES92111145T patent/ES2072056T3/en not_active Expired - Lifetime
- 1992-07-01 DK DK92111145.6T patent/DK0522435T3/en active
- 1992-07-03 AU AU19447/92A patent/AU651703B2/en not_active Ceased
- 1992-07-06 US US07/908,471 patent/US5282892A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US5282892A (en) | 1994-02-01 |
| ATE120133T1 (en) | 1995-04-15 |
| DE4220550A1 (en) | 1993-01-14 |
| ES2072056T3 (en) | 1995-07-01 |
| DK0522435T3 (en) | 1995-07-24 |
| DE59201712D1 (en) | 1995-04-27 |
| EP0522435A1 (en) | 1993-01-13 |
| AU651703B2 (en) | 1994-07-28 |
| AU1944792A (en) | 1993-03-11 |
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