Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
  • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
  • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
  • B41J3/28—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers
  • B41J3/286—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing downwardly on flat surfaces, e.g. of books, drawings, boxes, envelopes, e.g. flat-bed ink-jet printers on boxes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
  • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
  • B41J3/407—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for marking on special material
  • B41J3/4073—Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects
  • B41J3/40733—Printing on cylindrical or rotationally symmetrical objects, e. g. on bottles
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
  • B41M5/0082—Digital printing on bodies of particular shapes
  • B41M5/0088—Digital printing on bodies of particular shapes by ink-jet printing

Definitions

• the invention relates to a method for the peripheral printing of containers, in particular for all-round printing of bottles, after which the respective container and / or a print head is rotated and in this case equipped with a printed image in accordance with a print template.
• Such a method has become known from DE 35 26 769 A1. This is about decorating containers made of metal or plastic.
• the print original or the print image is produced by the so-called ink-jet method by means of, for example, ink or paint jets by programmed application of individual color dots along parallel circumferential lines on the wall as a raster image.
• the known procedure has proved successful, but then comes up against limits, if one and the same artwork is to be applied to differently shaped container or these containers vary in their scope design respectively their diameter.
• the invention is based on the technical problem of further developing such a method for the peripheral printing of containers so that the costs are reduced and a full-surface circumferential design of the containers succeeds if necessary.
• a generic method is characterized in that the print original is flanked with respect to their extent in the circumferential direction and / or high axis direction with associated angle markers for controlling the relative rotational movement between the container and printhead when printing the artwork on the container.
• the printing original which is usually present in digital form as a flat matrix of dots of color, is applied to the container to be printed by the ink-jet method.
• the at least one printhead is an inkjet printhead.
• the invention basically also includes other printing methods which work with dots of color which are applied along circumferential lines and / or high-axis lines to the container to be printed.
• the perimeters are printed line by line and stacked, or the printhead is constructed to accommodate all of the perimeter lines in one go during a rotary motion of the container, and thus the single copy swivel onto the container in question is applied.
• the container can be rotated while the print head remains stationary, but also a variant is covered, after which the print head is rotated around the container.
• the print head is rotated around the container.
• combinations are also conceivable.
• the ability to work with multiple printheads for example, for different colors, which are arranged one above the other in the vertical axis direction and thus ensure the complete transfer of the artwork on the circumference of the container in a single revolution.
• the artwork is usually composed of arranged on a certain surface color dots or pixels, which are transmitted as ink or paint dots on the container in question with the help of the print head and there generate the desired print image.
• the transfer of the print original is now carried out in such a way that, as a rule, one does not work with circumferential lines of constant length, ie. H. the individual pixels do not have the same distance from one another along these circumferential lines from container to container. Rather, these peripheral lines or the artwork are flanked altogether with angle marks, so that the individual pixels are always printed at the same angular position in each container.
• the respective circumferential line is of length with a range of 0 ° to 360 ° in the example case equated.
• an all-around pressure of 360 ° in four or even eight sections in the example case can be subdivided, whose respective starting and ending points imperatively occupy the angular position predetermined by the angle marking.
• an overlapping-free all-round pressure of the containers is already provided. Because depending on the diameter of the bottle or container to be printed, the peripheral lines are compressed or stretched, for which the angle markings acting as fixed points provide as it were.
• the master is designed as a matrix-like surface, but now the Hochachsenlinien on which the individual color dots are arranged in the vertical axis direction, do not have a constant length as in the prior art, but rather depending on the predetermined (other) angle mark can also be compressed or stretched.
• the original is flanked with the angle marks only in terms of their circumferential extent.
• the artwork is applied in the circumferential direction only angle-dependent on the container.
• any number of angle markings can be set.
• the number of angle marks may correspond at most to the number of color dots along the desired circumference.
• the artwork is divided in the circumferential direction as it were in individual circle segments between two angle marks.
• the subdivision or the design as a whole is preferably made such that the distances between the individual color points within the respective circle segment are constant, although of course also a varying spacing is conceivable and encompassed by the inventive idea.
• the angular and non-length-dependent application of the master in the circumferential direction ensures that different container trapping and consequently varying diameters are taken into account by compressing the associated peripheral line at a previously smaller diameter and stretching it at a larger diameter , This of course applies to all perimeter lines of the artwork.
• the inventive method is of course not limited to the Rundumbedigen of containers, but hereby just as successful only a sectioned printing that always leads to the same appearance and the same proportions by adapting to different containers, taking into account diameter tolerances.
• this control unit is already mandatory because it is used to control a rotatable pad for the container and / or the rotational movement of the print head.
• the artwork is applied circumferentially on the container with the help of the print head, wherein the print head has a fixed, predetermined distance from the container or its circumference. In this case, the distance of the print head to the container can be adjusted regulated so as not to cause distorsions of the printed image on the container by variations in distance between the print head and the container or its circumference.
• the artwork can not be applied to the container in a non-restrictive, overlapping-free manner and, of course, takes into account the extent of the artwork perpendicular to the circumferential direction in the vertical axis direction.
• the subject of the invention is also a device for the peripheral printing of containers, which is particularly suitable for carrying out the described method.
• 1 is a printing template schematically, which is transferred to a container and generates a printed image here,
• Fig. 3 simplified an apparatus for printing on peripherals of containers
• a device for the peripheral printing of containers 1 is shown schematically. In fact, it is present and not restrictive to the Rundumbedigen cylindrical bottles 1. These bottles 1 may be bottles of beverage on which instead of a label, a wrap around is applied, which provides the necessary information about the content, the brand, decor designs, etc. includes. This wrap-around print is available as print image 2, which - as will be explained in more detail below - has been applied without overlap on the container or the bottle 1.
• the invention first of all makes use of a printing original 3, which is transferred peripherally on the container 1 with the aid of one or more print heads 4 and generates the printed image 2 there.
• the printing original 3 is present in digital form as a planar matrix of color dots or pixels, as indicated in FIG. 1.
• the printing original 3 is designed two-dimensionally and extends in the circumferential direction U and Hochachsecardi H of the container or the bottle 1 over each certain lengths.
• a rotatable base 5 is provided in the exemplary embodiment, which accommodates the container or the bottle 1.
• the print head 4 is fixedly mounted and can be moved back and forth on the carriage 6 as part of the illustration, so that a distance A of the print head 4 to the container or the bottle 1 can be varied.
• Both the carriage 6 and the rotatable base 5 and the turntable 5 are connected to a control unit 7. This also applies to a sensor 8 to be described later, which measures the described distance A between the print head 4 and the container 1 or its circumference and transmits its measured values to the control unit 7.
• the present example as a file of digital data print template 3 is processed in the control unit 7.
• the printing original 3 is equipped with respect to its longitudinal extent in the circumferential direction U with associated angle markings 9, which correspond in the context of the illustration of FIG. 1 each to a 90 ° -Dreh hung the rotatable base 5 and consequently of the container 1.
• the angle marks 9 are used to control or control the rotational movement of the bottle 1 during printing.
• the entire length of the printing system 3 in the circumferential direction U is equated with an angular range of 0 ° to 360 ° at an all-round pressure.
• the printing original 3 is transferred to the control unit 7 in a specific and predetermined format, ie their perimeter lines 3a have as well as their Hochachsenlinien 3b over a certain length.
• both the length of the vertical axis lines 3b and, in particular, the length of the peripheral lines 3a can be varied in order to take into account possibly changing bottle topologies.
• only the circumferential lines 3a are compressed or stretched, depending on whether the diameter of the container to be printed 1 is reduced or increased in comparison to a previously treated container 1. To make this adjustment, the angle marks 9 are provided.
• the individual color dots or pixels 10 by a I nk jet process as paint or ink particles of the desired color on the circumference of Container 1 applied by means of the print head 4.
• the print head 4 is received in an adjustable holder or a carriage 6, so that its distance A from the container 1 can be varied.
• the sensor 8 ensures the measurement of the distance A of the print head 4 from the container 1.
• the measured values of the sensor 8 are used as a control input variable in the control unit 7 processed and serve to regulate the adjustable bracket or the carriage 6 in the sense of a constant distance A. This ensures that the printing original 3 is applied to the container 1 without distortion and generates there the printed image shown in FIG.
• the distance c of the color dots 10 in the vertical axis direction H along the Hochachsenlinien 3b can be varied. This is only hinted at.
• the invention carries differently shaped containers 1 and in particular diameter tolerances of these containers 1 bill.
• the printing original 3 according to FIG. 4 can be applied to the container 1 without overlapping, because in the core the printing original 3 is subdivided into 360 ° angle segments or in four 90 ° circle segments in the example case corresponding to FIG associated angle marks 9 are flanked.
• Each angle marking 9 ensures in the control unit 7 that the container 1 sweeps over the specified rotation angle and exactly at this position the color points 10 belonging to the respective angle marking 9 are applied. From angle markings 9 to angle mark 9, the color dots 10 will be distributed in the circumferential direction U at the same or varying distance b.

Landscapes

• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Details Of Rigid Or Semi-Rigid Containers (AREA)
• Ink Jet (AREA)
• Printing Methods (AREA)
• Containers Having Bodies Formed In One Piece (AREA)
• Auxiliary Devices For And Details Of Packaging Control (AREA)
• Coating Apparatus (AREA)
• Making Paper Articles (AREA)
• Container Filling Or Packaging Operations (AREA)
• Application Of Or Painting With Fluid Materials (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=38769875

Family Applications (1)

Country Status (9)

Families Citing this family (7)

Family Cites Families (18)

• 2006
  • 2006-08-16 DE DE102006038247A patent/DE102006038247A1/de not_active Withdrawn
• 2007
  • 2007-08-15 EP EP07818024.7A patent/EP2054232B2/fr active Active
  • 2007-08-15 CN CN2007800294802A patent/CN101547794B/zh not_active Expired - Fee Related
  • 2007-08-15 JP JP2009524115A patent/JP2010500250A/ja active Pending
  • 2007-08-15 MX MX2009001300A patent/MX2009001300A/es active IP Right Grant
  • 2007-08-15 AT AT07818024T patent/ATE505335T1/de active
  • 2007-08-15 DE DE502007006952T patent/DE502007006952D1/de active Active
  • 2007-08-15 WO PCT/EP2007/007189 patent/WO2008019829A1/fr active Application Filing
  • 2007-08-15 BR BRPI0714488A patent/BRPI0714488B1/pt not_active IP Right Cessation
  • 2007-08-15 RU RU2009109256/12A patent/RU2388611C1/ru not_active IP Right Cessation

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events