DE2047350A1 - Printing offset preventing - using polyethylene wax and starch dusting mixture - Google Patents

Printing offset preventing - using polyethylene wax and starch dusting mixture

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Publication number
DE2047350A1
DE2047350A1 DE19702047350 DE2047350A DE2047350A1 DE 2047350 A1 DE2047350 A1 DE 2047350A1 DE 19702047350 DE19702047350 DE 19702047350 DE 2047350 A DE2047350 A DE 2047350A DE 2047350 A1 DE2047350 A1 DE 2047350A1
Authority
DE
Germany
Prior art keywords
polyethylene wax
powder
starch
offset preventing
printing offset
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
Application number
DE19702047350
Other languages
German (de)
Inventor
Auf Nichtnennung Antrag
Original Assignee
Epple, Dipl Chem Rudolf, 8900 Augs bürg
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.)
Filing date
Publication date
Application filed by Epple, Dipl Chem Rudolf, 8900 Augs bürg filed Critical Epple, Dipl Chem Rudolf, 8900 Augs bürg
Priority to DE19702047350 priority Critical patent/DE2047350A1/en
Publication of DE2047350A1 publication Critical patent/DE2047350A1/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M7/00—After-treatment of prints, e.g. heating, irradiating, setting of the ink, protection of the printed stock
    • B41M7/02—Dusting, e.g. with an anti-offset powder for obtaining raised printing such as by thermogravure ; Varnishing

Abstract

Offset preventing as claimed in DT. 1,932,179 is modified to reduce the frequency of washing of the inking fountain from 3,000 to 5,000 printed perfect sheets by replacing the calcium carbonate powder in the polyethylene wax dusting mixture with starch whose amt. may vary up to 95% by wt.

Description

PATENTANWÄLTE Q Γ» L ·Ί Ο C Π PATENT LAWYERS Q Γ » L · Ί Ο C Π

DR.-PHIL. G. NICKEL- DR.-ING. J. DORNERDR. PHIL. G. NICKEL-DR.-ING. J. DORNER

8 MÖNCHEN 15 LANDWEHRSTR. 35 · POSTFACH 10* 8 MÖNCHEN 15 LANDWEHRSTR. 35 POST BOX 10 *

TEL. (08 11) 55 5719TEL. (08 11) 55 5719

München, den 25. September 1970 Anwaltsaktenz.t 20 - Pat. 3Munich, September 25, 1970 Attorney's file. t 20 - patient 3

Rudolf Epple, 89 Augsburg, Hallstraße 12, Bundesrepublik Deutschland Rudolf Epple, 89 Augsburg, Hallstrasse 12, Federal Republic of Germany

Verfahren zum Verhindern des Abschmierens frischer Drucke und Bestäubungsmittel zur Durchführung dieses Verfahrens (ZusatzMethods for preventing fresh prints from smearing and Pollinants for carrying out this procedure (addendum

zu Patent (Patentanmeldung amtliches Aktenzeichento patent (patent application, official file number

P 19 32 179.0-45))P 19 32 179.0-45))

Das Hauptpatent betrifft ein Verfahren zum Verhindern des Abschmierens frischer Drucke und ein Bestäubungsmittel zur Durchführung dieses Verfahrens. Gemäß einer bevorzugten Form des Bestäubungsmittels nach dem Hauptpatent enthält dieses Bestäubungsmittel natürliches oder synthetisches Wachs in Pulverform und einen Zusatz bis zu 95 Gewichtsprozenten Kalziumkarbonatpulver.The main patent relates to a method of preventing smearing fresh prints and a pollinant to carry out this procedure. According to a preferred form of the pollinant According to the main patent, this pollinant contains natural or synthetic wax in powder form and an addition of up to 95 percent by weight calcium carbonate powder.

Werden Druckträger beidseitig bedruckt und hierfür nach dem ersten Druckvorgang von dem Stapel für den zweiten Druckvorgang umgedreht der Druckmaschine zugeführt, so fällt ein Teil des Kalziumkarbonatpulvers von der nun auf der Unterseite befindlichen Druckträgerfläche ab und gelangt in das Farbwerk der Maschine. Dieses muß folglich von Zeit zu Zeit gewaschen werden, beispielsweise nach einem Druck von Jeweils 2000 bis 3000 Bogen.Are print media printed on both sides and for this after the first Printing process is fed from the stack upside down for the second printing process to the printing machine, so a part of the falls Calcium carbonate powder from the print carrier surface, which is now on the underside, and enters the inking unit of the machine. This consequently has to be washed from time to time, for example after printing 2000 to 3000 sheets at a time.

20981 A/065220981 A / 0652

Die vorliegende Erfindung hat die Aufgabe, diese Schwierigkeit bei Verwendung eines Bestäubungemittels der hier betrachteten Art zu vermeiden.It is an object of the present invention to overcome this difficulty using a pollinant of the type under consideration Kind to avoid.

Die Lösung der Aufgabe wird dadurch erreicht, daß auf die frisch bedruckten Flächen zusätzlich zu dem natürlichen oder synthetischen Wachs in Pulverform Stärkepulver aufgestäubt wird,The solution to the problem is achieved in that on the freshly printed areas in addition to the natural or synthetic wax in powder form is dusted with starch powder,

Als Wachs findet vorzugsweise Polyäthylenwachs in Pulverform in Korngrößen von 30 μ bis 300 μ Verwendung.The wax used is preferably polyethylene wax in powder form in grain sizes from 30 μ to 300 μ .

Der Anteil von Stärkepulver kann bis zu 95 Gewichtsprozent betragen. The proportion of starch powder can be up to 95 percent by weight.

Das erfindungsgemäße Verfahren bzw. das erfindungsgemäße Bestäubungsmittel hat den Vorteil, daß aufgrund einer gewissen Wasserlöslichkeit des Stärkepulvers dieses das Farbwerk durchlaufen kann, ohne daß ein Waschen des Farbwerkes früher als beispielsweise nach jeweils 5000 Bogen erforderlich ist.The method according to the invention or the pollinant according to the invention has the advantage that, due to a certain water solubility of the starch powder, it passes through the inking unit can without washing the inking unit earlier than, for example, after every 5000 sheets is required.

20981 4/065220981 4/0652

Claims (4)

PatentansprücheClaims η.) Verfahren zum Verhindern des Abschmierens frischer Drucke, bei welchem auf die frisch bedruckten Flächen ein natürliches oder synthetisches Wachs in Pulverform aufgestäubt wird nach η.) A method for preventing fresh prints from smearing off, in which a natural or synthetic wax in powder form is dusted onto the freshly printed surfaces Patent (Patentanmeldung amtliches AktenzeichenPatent (patent application, official file number P 19 32 179.0-45), dadurch gekennzeichnet, daß außerdem Stärkepulver auf die frisch bedruckten Flächen aufgestäubt wird,P 19 32 179.0-45), characterized in that also starch powder is dusted onto the freshly printed surfaces, 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß Poly- ' äthylenwachspulver in Korngrößen von 30 μ bis 300 μ und Stärkepulver aufgestäubt werden.2. The method according to claim 1, characterized in that polyethylene wax powder in grain sizes of 30 μ to 300 μ and starch powder are dusted on. 3. Bestäubungsmittel zur Durchführung des Verfahrens nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß es Polyäthylenwachspulver und einen Zusatz von bis zu 95 Gewichtsprozent Stärkepulver enthält.3. Pollinants for carrying out the method according to claim 1 or 2, characterized in that there is polyethylene wax powder and an addition of up to 95 percent by weight Contains starch powder. 4. Bestäubungsmittel nach Anspruch 3, dadurch gekennzeichnet, daß die Korngröße des Polyäthylenwachspulvers 30 ja bis 300 μ beträgt und daß die Korngröße des Stärkepulvers etwa 10 μ bis4. Dusting agent according to claim 3, characterized in that the grain size of the polyethylene wax powder is 30 to 300 μ and that the grain size of the starch powder is about 10 μ to 40 μ beträgt. λ 40 μ is. λ 209814/065 2'209814/065 2 '
DE19702047350 1970-09-25 1970-09-25 Printing offset preventing - using polyethylene wax and starch dusting mixture Pending DE2047350A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702047350 DE2047350A1 (en) 1970-09-25 1970-09-25 Printing offset preventing - using polyethylene wax and starch dusting mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702047350 DE2047350A1 (en) 1970-09-25 1970-09-25 Printing offset preventing - using polyethylene wax and starch dusting mixture

Publications (1)

Publication Number Publication Date
DE2047350A1 true DE2047350A1 (en) 1972-03-30

Family

ID=5783432

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702047350 Pending DE2047350A1 (en) 1970-09-25 1970-09-25 Printing offset preventing - using polyethylene wax and starch dusting mixture

Country Status (1)

Country Link
DE (1) DE2047350A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5797326A (en) * 1994-12-20 1998-08-25 Heidelberger Druckmaschinen Ag Method for applying spacing material to a printed sheet of paper, and a sheet-fed printing press equipped for performing the method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5797326A (en) * 1994-12-20 1998-08-25 Heidelberger Druckmaschinen Ag Method for applying spacing material to a printed sheet of paper, and a sheet-fed printing press equipped for performing the method

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