DE102008004975A1 - Printing unit of a machine of the tobacco processing industry - Google Patents

Abstract

The invention relates to a method for applying print marks on a strip of material (21) of the tobacco processing industry, in particular wrapping strips, by means of a printing device (23, 23.1, 23.2, 23.3) operating according to the gravure printing method, wherein the strip of material (21) along with a conveying direction a predetermined speed between a counter-pressure member (48) and a printing forme roller (45) is conveyed, wherein the print marks on the material strip (21) are applied by means of the printing form roller (45), the ink receiving and dispensing recesses or wells. The method is further developed in that during a printing operation when a print mark is applied to the material strip (21), the counterpressure member (48) interacts with the printing form roller (45) in such a way that a predetermined pressing pressure is exerted on the material strip (21) during the printing operation, and between two, in particular successive, printing operations of the pressing pressure on the strip of material (21) is reduced or is. Moreover, the invention relates to a printing unit (23) of a machine of the tobacco processing industry for applying print marks from a strip of material (21) of the tobacco processing industry, in particular wrapping strips, wherein the printing unit (23) works or is formed according to the gravure printing method. Furthermore, the invention relates to a machine of the tobacco processing industry, ...

Description

The The invention relates to a method for applying print marks on a material strip of the tobacco processing industry, in particular wrapping strips, by means of a working according to the gravure printing method Printing device, wherein the strip of material along a conveying direction at a predetermined speed between a counterpressure member and a printing form roller is conveyed, wherein the print marks by means of the printing form roller, the ink receiving and dispensing Wells or wells, on the strip of material be applied.

Furthermore The invention relates to a printing unit of a machine of tobacco processing Industry for applying print marks to a strip of material the tobacco processing industry, in particular wrapping strips, wherein the printing unit according to the gravure printing method works or trains, the material strip along a conveying direction at a predetermined speed between a counterpressure member and a printing form roller is conveyed or conveyed is, the printing form roller ink receiving and dispensing depressions or wells, in contact between the wells or cup and the strip of material printing ink on the Material strip is delivered. Furthermore, the invention relates a machine of the tobacco processing industry, preferably cigarette rod making machine, as well a use of a printing unit in a machine of tobacco processing Industry.

In The tobacco processing industry will use extrusion machines for manufacturing of continuous, wrapped strands, e.g. B. tobacco strands, used. Under a covered strand becomes predominantly particular an endless filter strand or tobacco rod formed from tobacco understood that with a wrapping strip or strip of material made of paper, foil or the like. Is provided.

On the wrapping strip or strip of tobacco material manufacturing industry, eg As cigarette paper strips are in the continuous strand machines, in which rod-shaped articles like cigarettes, cigarillos, cigars or filter rods or are produced in the strand process, print marks or Printed images applied, for example, the cigarette brands themselves, but can also be manufacturer's name or other indications.

The Extrusion machines of the tobacco processing industry contain this Printing units in which at least one driven stamp pressure roller in contact with a counterpressure roller, wherein between the rollers the material to be printed web is performed. At the time of printing are the stamp of the Stempelruckwalwal zen with the continuously moving or conveyed material webs in synchronism to a Marking, lettering or brand logo on the material strip applied. Such imprints or stamps are obvious Quality features of such articles and require particular attention to its production required components and production conditions such as type and Condition of the ink used and its supply, transfer and distribution through several rollers until applied to the wrapping strip.

Printing units of machines of the tobacco processing industry are for example in EP-A-1 125 737 or EP-A-1 415 805 disclosed. In addition, describes DE-A-10 2005 035 701 also a printing unit of a machine of the tobacco processing industry.

In addition, in EP-A-1 637 325 a method for printing a wrapping strip of a smoking article described, wherein for printing the wrapping strip, a printing unit is used, which operates according to the gravure printing method.

outgoing from this prior art, the object of the present Invention therein, the printing of wrapping strips of Tobacco processing industry according to the gravure printing process to improve, with the design effort as possible should be kept low.

Solved This object is achieved by a method for applying print marks on a material strip of the tobacco processing industry, in particular Wrapping strips, by means of a according to the Gravure printing working printing device, wherein the material strip along a conveying direction at a predetermined speed between promoted a counter-pressure member and a pressure forming roller is, wherein the print marks by means of the printing form roller, the ink having receiving and dispensing pits or cups, be applied to the strip of material, which thereby developed will that during application during application a print mark on the strip of material with the counter-pressure member the printing form roller cooperates such that during the Printing a predetermined pressing pressure on the strip of material and between two, in particular consecutive, Printing processes the pressing pressure on the material strip is reduced or is.

The printing according to the gravure printing method based on the fact that the pressure of a print mark on the strip of material from a printing form or ei ner printing form roller takes place, the printing parts are deepened. Such printing parts are ink-receiving depressions or wells in the outer shell of the printing form roller. It is printed between the hard printing form roller with their wells as a color memory and a counter-pressure roller having an outer shell made of rubber or the like, the paper to be printed or the material strip and promoted at the same time. The material strip is in this case pressed by means of the counter-pressure roller with a high pressure on the printing form roller. Both the printing form roller and the counter-pressure roller are round in cross-section, being constantly in paper engagement.

At the Installation of a gravure printing unit in a machine of tobacco processing Industry has been found by the printing unit, consisting from a cross-sectionally circular counter-pressure roller and the im Cross-section circular printing form roller, another Zugwalzenpaar present in the paper path of a cigarette paper strip to be printed is because the two rollers are always pressed against each other become. Through each additional pair of draw rollers of the printing unit is an increased regulatory burden for the situation the print marks on the strip of material in particular the position of Print marks required for multiple colors to an exact location to achieve or ensure the print marks.

The inventive idea is based on the regulatory burden for a precise adherence to the position of the print marks simplify that the counter-pressure member for the Printing form roller temporarily out of engagement with the to be conveyed or to be printed material strips, wherein during application a print mark (printing phase) on the material strip of this the counter-pressure member is pressed as a pressure roller against the printing form roller. Subsequently, after the application of the print mark and after the Removal of printing ink from the cups of the printing form roller reduces the pressure on the material strip (delivery phase), allowing the strip of material for a predetermined period of time not pulled or promoted by the counter-pressure member and the printing form roller becomes. This means that between two printing operations the to be printed material strip in the field of printing form roller or the counter-pressure element is preferably conveyed freely, resulting in a simple position control due to the disengagement between the counter-pressure member and the pressure roller in the delivery phase and before or after the printing images on the roller, while she is not engaged results.

To is further advantageously provided that the pressing pressure the material strip, in particular oscillating, is varied.

Especially It is advantageous if no pressure between two printing operations Pressing pressure on the material strip in the area of the printing unit or the counter-pressure member and the pressure forming roller is applied. As a result, the function of printing the material strip, from the function of (pressure-free) paper conveying completely separated. In that during the time of not printing the Material strip conveyed pressure-free in the area of the printing form roller is and thus the counter-pressure member and the pressure forming roller not are in engagement with each other, a simple position control is achieved since during the non-printing phase no tensile force on the material strip is exercised. In particular, between the successive Printing processes the touch of the material strip interrupted with the intaglio roll, whereby, for example an influence on the taste of the material strip by a color film is lowered on the printing form roller.

Especially is provided in an advantageous development that the counter-pressure member at least has a pressing surface which preferably synchronizes with the printing form roller or the printing areas of the printing form roller is rotated.

About that In addition, it is advantageous if, during the printing process, d. H. when applying a print mark on the strip of material, the at least one pressing surface of the counter-pressure member and the ink dispensing pits or cups of the Compressor mold cooperate, so that ink from the wells or wells are dispensed on the strip of material.

moreover a development of the method is characterized in that between two printing operations, the contact between the strip of material and the printing form roller is interrupted, whereby the touch the strip of material with the gravure roll or the printing form roll is also interrupted.

moreover It is advantageous if between two printing operations of Contact between the strip of material and the counter-pressure member interrupted is or will, so the strip of material during the Phases of non-printing by the counter-pressure member neither promoted still pulled or pressed.

Furthermore, the object is achieved by a printing unit of a machine of the tobacco-processing industry for applying print marks on a strip of material in the tobacco processing industry, in particular wrapping strips, wherein the printing unit works or is formed according to the gravure printing method, wherein the strip of material along a conveying direction with a predetermined Ge Speed is promoted or conveyed between a counter-pressure member and a pressure forming roller, the pressure forming roller ink receiving and dispensing recesses or cups has, is discharged at contact between the wells or wells and the material strip ink on the strip of material, which is further developed in that the counter-pressure member so is formed, that during a printing operation when applying a print mark on the strip of material by means of the counter-pressure member in cooperation with the pressure forming roller, a predetermined pressing pressure is exerted and between two, in particular successive, printing operations of the pressing pressure is reduced to the strip of material or is.

For this it is advantageous if caused by the counter-pressure member Pressing pressure on the strip of material, in particular oscillating, is varied or variable, so that during a Printing process of the material strip with an increased pressing pressure pressed by the counter-pressure member on the surface of the printing form roller and then during the non-printing phase the pressing pressure is reduced or is. For the subsequent Printing phase is the pressing pressure on the strip of material accordingly raised again.

Especially becomes no pressing pressure during the non-printing phase exercised on the strip of material. Preferably For this purpose, the counter-pressure member as in cross section unround or not formed circular body of revolution. For this it should be noted that under a non-circular body of revolution a rotating body is understood that in the (vertical) Cross section to the rotation axis out of round, d. H. not rotationally symmetric, is trained.

To is further provided that the rotational body elliptical and / or formed with flats and / or with recesses is, thereby creating a non-circular in cross-section body of revolution. In addition, the rotational body has over one, in particular circular or curved, outer Pressing surface during printing in the Engagement with the material strip to be printed is such that during the printing phase of the strip of material is pressed onto the printing form roller.

According to one Further development of the printing unit is also provided that the counter-pressure element on the strip of material touching Outer surface, preferably circular arc or curved, rubberized or elastic is.

Around at predetermined intervals on the strip of material imprints or apply print marks, it is also advantageous when the counter-pressure element and the pressure-forming roller are driven synchronized be or are.

About that In addition, the problem is solved by a machine of Tobacco processing industry, preferably cigarette rod making machine, formed with a printing unit according to the invention is.

A Another solution to the problem is a use a printing unit described above in a machine of Tobacco processing industry. To avoid repetition is expressly to the above statements directed.

The Invention will hereinafter be understood without limitation of the general Erfindungsgedankenens with reference to embodiments below Referring to the drawings, wherein respect all not explained in detail in the text invention Details specifically referred to the drawings becomes. Show it:

1 a cigarette extruder machine type "PROTOS" of the patent applicant in a schematic view;

2 schematically a view of an inventive printing unit of the cigarette rod machine;

3a . 3b schematically an inventive printing unit in a printing position and in a non-printing position and

4a to 4e various embodiments of a counter-pressure element, wherein in 4a a counter-pressure member in the form of a counter-pressure roller is shown as prior art.

In The following figures are each the same or similar elements or corresponding parts provided with the same reference numerals, so that a corresponding renewed idea is ignored.

At the in 1 schematically shown cigarette rod PROTOS the patent applicant is a lock 1 a pre-distributor 2 Portioned in portions with tobacco. A removal roller 3 of the pre-distributor 2 added controlled a reservoir 4 with tobacco, from which a steep conveyor 5 Takes out tobacco and a stowage 6 controlled feeds.

Out of the stowage 6 takes a pin roller 7 a uniform stream of tobacco from ei ner rip roll 8th from the pins of the pin roller 7 knocked out and on a circulating at a constant speed stray cloth 9 is thrown. One on the jar 9 formed tobacco fleece is in a viewing device 11 Thrown, which consists essentially of an air curtain, the larger or heavier tobacco particles happen, while all other tobacco particles from the air into one of a pin roller 12 and a wall 13 formed funnel 14 be steered.

From the pin roller 12 The tobacco is in a tobacco channel 16 against a rope conveyor 17 hurled at which the tobacco by means of a vacuum chamber 18 kept sucked air and a tobacco rod is aufauert.

A leveling agent 19 removes excess tobacco from the tobacco rod, which then on a run in synchronized cigarette paper strip 21 is placed. The cigarette paper strip 21 is from a reel 22 deducted, by a printing unit 23 guided and on a driven format tape 24 placed. The format tape 24 transports the tobacco rod and cigarette paper strip 21 through a format 26 in which the cigarette paper strip 21 is folded around the tobacco rod, so that even an edge protrudes, which is glued by a Glimapparat, not shown in a known manner. Then the bond seam is closed and from a Tandemnahtplatte 27 dried.

A so formed as a strand of material, wrapped tobacco rod 28 goes through a strand density meter 29 that the equalizer 19 controls, and is from a knife apparatus 31 cut into double-length cigarettes. The double-length cigarettes are controlled by one arms 33 having transfer device 34 a takeover drum 36 a filter attachment machine 37 pass on their cutting drum 38 they are divided into single cigarettes with a circular knife.

conveyor belts 39 . 41 Promote excess tobacco in one of the reservoir 4 arranged container 42 from which the recycled tobacco from the steep conveyor 5 is removed again.

2 schematically shows a view of a printing unit according to the invention 23 a cigarette rod machine omitting erfindungsunwesentlicher details. From the bobbin 22 becomes the cigarette paper strip 21 as a material strip of the tobacco-processing industry, for example by means of a pair of withdrawal rollers, deducted and various pulleys for printing unit according to the invention 23 promoted. This is the cigarette paper strip 21 at a constant speed through the printing unit 23 conveyed linearly or horizontally, so that after passage of the cigarette paper strip 21 through the printing unit 23 at equidistant intervals print marks on the cigarette paper strip 21 are applied.

Input side of the printing unit 23 becomes the cigarette paper strip 21 via a pulley 43 to the printing units 23.1 . 23.2 and 23.3 of the printing unit 23 promoted. Due to the fact that several printing units 23.1 to 23.3 in the printing unit 23 It is possible to have a multi-colored imprint on the cigarette paper strip 21 apply, with each of the printing units 23.1 . 23.2 . 23.3 imprints a predetermined color on the strip.

The printing units 23.1 to 23.3 are functionally the same, so that in this case only the printing unit 23.1 is described in detail. The following remarks on the printing unit 23.1 apply analogously to the other printing units 23.2 respectively. 23.3 ,

The printing unit 23.1 has a color supply 44 with printing ink, from the printing ink by means of a printing form roller 45 is removed. The ink can be from the color supply 44 directly from the printing form roller 45 be included as in 2 represented, or indirectly, ie with the interposition of ink-carrying rollers or cylinders (not shown here) between the ink supply 44 and the printing form roller 45 be removed.

The printing form roller 45 itself has wells or depressions on its hardened surface, in which the printing ink from the ink supply 44 is included. The in the wells or wells of the printing form roller 45 adhering ink is further promoted, so that the surface of the printing form roller 45 engaged with a squeegee 46 passes, causing excess ink from the surface of the printing form roller 45 is doctored off. As a result, the printed image vacancies between the wells by means of the doctor blade 46 cleaned by scraping excess Druckfar be.

Subsequently, the ink receiving cups are on the printing form roller 45 in the area of contact with the cigarette paper strip 23 or further promoted in the printing area, so that the ink from the wells to the underside of the simultaneously funded cigarette paper strip 21 is applied and thereby an imprint on the cigarette paper strip 21 produced by delivery of the ink.

During the printing phase, the simultaneously conveyed and to be printed cigarette paper strip section in the region of the printing area of a rotary back pressure body 48 on the surface of the printing form roller 45 pressed. The pressure shape roller 45 and the rotary back pressure body 48 are driven in opposite directions to each other rotating.

The rotary back pressure body 48 is synchronized to the printing form roller 45 rotating around your axis of rotation 47 is driven, or the ink receiving or donating wells of the printing form roller 45 around its axis of rotation 49 rotates. The rotary back pressure body 48 is in this case non-circular in cross-section, so that for or during the printing phase of the cigarette paper strip to be printed in the region of the printing area with a predetermined pressing pressure on the wells of the printing form roller 45 be pressed so that ink from the wells to the cigarette paper strip 21 is delivered.

The printing unit 23 is a printing unit, which operates according to the gravure printing method, according to the invention instead of the known in the art, in cross-section round counter-pressure roller as impressioners in cross-section non-circular rotary counter pressure as a counter-pressure member for the printing form roller 45 is used. In the sense of the invention, the rotational back pressure body is used for the time of the printing phase 48 as a pressure roller exerted a predetermined pressing pressure on the strip of material, while in the non-printing phase of the cigarette paper strip 21 less or not at all from the rotary back pressure body 48 for a predetermined period of time against the surface of the printing form roller 45 is pressed.

In particular, in the time between two printing operations no ink from the printing form roller 45 on the cigarette paper strip 21 delivered, preferably in this case smooth surface areas of the printing form roller 45 be promoted without wells through the pressure range. Preferably, the surface of the printing form roller 45 formed such that the print image or print marks giving areas with wells at regular intervals on the surface of the printing form roller 45 are arranged, while the print image forming areas between the surface of the printing form roller 45 is smooth.

According to the in 2 illustrated embodiment of the printing unit 23 with the gravure printing units 23.1 to 23.3 is it possible that the color supplies 44 the printing units 23.1 to 23.3 have different colors, so that a multi-colored print or a multi-colored print mark on the cigarette paper strip 21 is applied. After applying the print marks the cigarette paper strip 21 further promoted, so that a formed tobacco rod is enveloped by the printed cigarette paper strip.

In the 3a and 3b are schematic views of another printing unit 23 represented, in which in 3a shown position of the printing unit 23 a print mark on the cigarette paper strip 21 is printed while according to the in 3b position shown no imprint of a print mark on the cigarette paper strip 21 done and the cigarette paper strip 21 without pressing pressure in the pressure area between the rotary back pressure body 48 and the printing form roller 45 is encouraged.

The rotary back pressure body 48 is in this embodiment elliptical or oblong or flattened or in the manner of an ellipse, ie elliptical formed. Since the diameter of the rotary back pressure body 48 is not constant, it is provided by a non-circular cross-section impression roller, so that during the printing phase (see. 3a ) of cigarette paper strips 21 against the ink receiving cups of the printing form roller 45 is then pressed during the non-printing phase with further rotation of the rotary back pressure body 58 to lower the pressing pressure (down to zero), so that with further promotion of the cigarette paper strip 21 in an advantageous embodiment of the cigarette paper strip 21 no touching contact with the surface of the printing form roller 45 owns (cf. 3b ). Preferably, between two printing operations, a cup-free zone below the cigarette paper strip 21 rotated through, so that subsequently with further rotation of the printing form roller 45 and the rotary back pressure body 48 synchronizes the ink receiving cups of the printing form roller 45 together with the pressing surface 51 in the area of the vertices 52 the strip of material against the surface of the printing form roller 45 or their cup presses.

In 4a is a counterpressure roller 55 represented in cross-section according to the prior art. The counterpressure roller 55 is formed in a circular or circular cross-section, wherein the counter-pressure roller 55 on the outside or outside surface 56 having an elastic sheath made of rubber or the like.

In the 4b to 4e are exemplary embodiments of inventive rotary back pressure body 48 instead of a counterpressure roller 55 (see. 4a ) are used in a gravure printing unit according to the invention in a machine of the tobacco-processing industry.

The rotary back pressure body 48 in 4b points to its outer lateral surface or outer surface 56 a recess 54 on, so that the rotary back pressure body 48 is formed out of round in cross-section. Through the recess 54 is reduced under rotation of the counter-pressure body in a printing unit according to the invention, the contact pressure of the cigarette paper strip to be printed against the circular lateral surface, so that upon rotation of the recess 54 is conveyed through the printing area of the cigarette paper strips with less contact pressure or no pressure at all through the printing area.

4c shows the embodiment of a rotary counter pressure body according to the invention, the flattened in cross-section on two sides 53 having.

The in 4d illustrated rotary back pressure body is formed in the manner of a rotating in the middle of the sleeve or rods, wherein the outer surfaces 56 are formed spherically in the manner of a circular arc, during the printing process with the printing form roller 45 interact.

4e shows a one-armed rotary back pressure body 48 which is also round in cross-section, the outside 56 has a rubberized surface, which comes in contact with the cigarette paper strip when applying a print mark.

1

lock

2

preliminary distributor

3

out roller

4

reservoir

5

vertical conveyor

6

accumulating shaft

7

pin roll

8th

picker roller

9

stray cloth

11

OverviewAmenitiesPicture

13

tape

14

funnel

16

tobacco channel

17

line conveyor

18

Vacuum chamber

19

Egalisator

21

Cigarette paper strip

22

reel

23

printing unit

23.1

printing unit

23.2

printing unit

23.3

printing unit

24

format tape

26

format

27

Tandemnahtplätte

28

sheathed tobacco rod

29

Strand density meter

31

knife apparatus

33

poor

34

Transfer device

36

transfer drum

37

filter attachment

38

cutting drum

39

conveyor belt

41

conveyor belt

42

container

43

idler pulley

44

color stock

45

Master drum

46

doctor

47

axis of rotation

48

Pilot head

49

axis of rotation

51

Press area

52

vertex

53

flattening

54

recess

55

Backing roll

56

outer surface

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - EP 1125737 A [0006]
• - EP 1415805 A [0006]
• - DE 102005035701 A [0006]
• - EP 1637325 A [0007]

Claims (15)

Method for applying print marks to a strip of material ( 21 ) of the tobacco-processing industry, in particular wrapping strips, by means of a printing device operating according to the gravure printing method ( 23 . 23.1 . 23.2 . 23.3 ), whereby the strip of material ( 21 ) along a conveying direction at a predetermined speed between a counter-pressure member ( 48 ) and a printing form roller ( 45 ) is conveyed, wherein the print marks by means of the printing form roller ( 45 ), the ink receiving and dispensing depressions or wells, on the strip of material ( 21 ) are applied, characterized in that during a printing operation when applying a print mark on the strip of material ( 21 ) the counterpressure member ( 48 ) with the printing form roller ( 45 ) cooperates such that during the printing process, a predetermined pressing pressure on the strip of material ( 21 ) is applied, and between two, in particular successive, printing operations, the pressing pressure on the strip of material ( 21 ) is reduced or is. A method according to claim 1, characterized in that the pressing pressure on the strip of material ( 21 ), in particular oscillating, is varied. A method according to claim 1 or 2, characterized in that between two printing operations no pressing pressure on the strip of material ( 21 ) is exercised. Method according to one of claims 1 to 3, characterized in that the counter-pressure member ( 48 ) at least one pressing surface ( 52 ), which is preferably synchronized with the printing form roller ( 45 ) is rotated. A method according to claim 4, characterized in that during the printing process, the at least one pressing surface ( 51 ) of the counter-pressure element ( 48 ) and the ink-emitting depressions or wells of the printing form roller ( 45 ), so that ink from the wells or wells on the strip of material ( 21 ) is delivered. Method according to one of claims 1 to 5, characterized in that between two printing operations, the contact between the strip of material ( 21 ) and the printing form roller ( 45 ) is interrupted. Method according to one of claims 1 to 6, characterized in that between two printing operations, the contact between the strip of material ( 21 ) and the counterpressure member ( 48 ) is or will be interrupted. Printing unit ( 23 ) a machine of the tobacco processing industry for the application of print marks on a strip of material ( 21 ) of the tobacco-processing industry, in particular wrapping strips, the printing unit ( 23 ) works or is formed according to the gravure printing method, wherein the strip of material ( 21 ) along a conveying direction at a predetermined speed between a counter-pressure member ( 48 ) and a printing form roller ( 45 ), the printing form roller ( 45 ) Ink-receiving and giving depressions or wells, in contact between the wells or wells and the strip of material ( 21 ) Printing ink on the material strip ( 21 ) is discharged, characterized in that the counter-pressure member ( 48 ) is formed such that during a printing operation when applying a print mark on the strip of material ( 21 ) by means of the counter-pressure element ( 48 ) in cooperation with the printing form roller ( 45 ) a predetermined pressing pressure is exerted or is and between two, in particular successive, printing operations, the pressing pressure on the strip of material ( 21 ) is or will be reduced. Printing unit ( 23 ) according to claim 8, characterized in that by the counter-pressure member ( 48 ) caused pressing pressure on the strip of material ( 21 ), in particular oscillating, is varied or variable. Printing unit ( 23 ) according to claim 8 or 9, characterized in that the counter-pressure member ( 48 ) as a non-circular body of revolution ( 48 ) is trained. Printing unit ( 23 ) according to claim 10, characterized in that the rotational body ( 48 ) is formed ellipsoidal and / or with flats and / or with recesses. Printing unit ( 23 ) according to one of claims 8 to 11, characterized in that the counterpressure member ( 48 ) on its the strip of material ( 21 ) touching outer surface ( 56 ) is formed rubberized. Printing unit ( 23 ) according to one of claims 8 to 12, characterized in that the counter-pressure element ( 48 ) and the printing form roller ( 45 ) are driven synchronously or are. Machine of the tobacco processing industry, preferably cigarette rod machine, with a printing unit ( 23 ) according to any one of claims 8 to 13. Use of a printing unit ( 23 ) in a machine of the tobacco processing industry, whereby the printing unit ( 23 ) according to one of claims 8 to 13 is formed.