WO2019235484A1 - Procédé de fabrication de boîte imprimée, et boîte imprimée - Google Patents

Procédé de fabrication de boîte imprimée, et boîte imprimée Download PDF

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Publication number
WO2019235484A1
WO2019235484A1 PCT/JP2019/022200 JP2019022200W WO2019235484A1 WO 2019235484 A1 WO2019235484 A1 WO 2019235484A1 JP 2019022200 W JP2019022200 W JP 2019022200W WO 2019235484 A1 WO2019235484 A1 WO 2019235484A1
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WO
WIPO (PCT)
Prior art keywords
image
printing
inkjet image
region
inkjet
Prior art date
Application number
PCT/JP2019/022200
Other languages
English (en)
Japanese (ja)
Inventor
幸司 山田
宏紀 尾関
友里 竹内
秀彦 西塚
Original Assignee
東洋製罐株式会社
東洋製罐グループホールディングス株式会社
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 東洋製罐株式会社, 東洋製罐グループホールディングス株式会社 filed Critical 東洋製罐株式会社
Publication of WO2019235484A1 publication Critical patent/WO2019235484A1/fr

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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
    • B41J3/40733—Printing on cylindrical or rotationally symmetrical objects, e. g. on bottles
    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • 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
    • B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
    • B41M5/0256—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet the transferable ink pattern being obtained by means of a computer driven printer, e.g. an ink jet or laser printer, or by electrographic means
    • 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
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2002/012—Ink jet with intermediate transfer member

Definitions

  • the present invention relates to a printing can manufacturing method and an ink jet printing can.
  • the can manufacturing process after the can body and the bottom are integrally molded, printing is performed on the can body.
  • printing on the can body by offset printing ink is applied to the plate, the ink image of the plate is transferred to the offset blanket, and the outer surface of the can body is pressed against the top surface of the offset blanket while the can and blanket are By moving, the ink held on the blanket is transferred to the can body.
  • An inkjet image may include an image based on a photograph.
  • expression of light and shade is particularly important.
  • a brightly visible portion (generally referred to as a highlight portion) can be included.
  • characters when characters are included, dakuten, semi-dakuten, punctuation marks, periods, commas, etc., exist as minimal areas.
  • an inkjet image including characters with such highlights and minimal regions is transferred to a can, there is a problem in transferring to the can because the ink area (ink amount) to be transferred is small.
  • the present invention improves transfer defects that may occur when an image is transferred.
  • the inventors of the present invention have studied to solve the above problems.
  • the highlight portion as described above is not a solid image but an independent ink liquid that does not overlap between adjacent ink droplets. It was present as a drop.
  • Ink jet images including characters with a minimal area are not independent of ink droplets, but exist as minimal islands (independent island regions) even if the ink droplets overlap.
  • the ink layer that forms the ink jet image is easily broken during transfer, and it remains on the blanket without being transferred to the can together with the other ink layers. did.
  • a portion that exists as an independent ink droplet that does not overlap between adjacent ink droplets is referred to as a “highlight portion”, and ink such as a cloud point, a semi-turbid point, a punctuation mark, a period, a comma, etc.
  • a portion that exists as a minimum island even if droplets overlap is referred to as a “minimum region”.
  • an ink layer formed on the surface of a transfer material such as a blanket such as a highlight portion or a minimal region, is easily transferred to a can, it is referred to as an “easy break region”.
  • the transfer failure of the easily breakable region is improved by connecting the easily breakable region to another region in the inkjet image by the connecting member.
  • the present invention has been completed.
  • the present invention includes a printing step for forming an inkjet image including an easily breakable region on a revolving image conveying unit, and a transfer step for transferring the inkjet image formed on the image conveying unit to a can which is a substrate to be printed.
  • a method of manufacturing a can In the transfer step, the easily breakable region in the inkjet image includes a manufacturing method in which the region is connected to another region in the inkjet image by a connecting member.
  • the easily breakable region in the inkjet image on the image conveying means has a form connected to another region in the inkjet image by overcoating and / or a form connected to another region in the inkjet image by undercoating.
  • the easily breakable region may include a highlighted portion, and the easily breakable region may include a character.
  • a form having a curing step for semi-curing the outermost surface layer of the transferred material on the image conveying means is preferable.
  • Another embodiment of the present invention is an inkjet printing can on which inkjet image printing has been performed,
  • the inkjet image includes an easily breakable region, and the easily breakable region includes an inkjet printing can that is connected to another region in the inkjet image by a connecting member.
  • FIG. 1 is a schematic diagram illustrating an example of a configuration of a printing system. It is the top view (a) which shows typically the inkjet image containing an easily breakable area
  • One embodiment of the present invention includes a printing step for printing an inkjet image including an easily breakable region on a revolving image conveying means, and a transferring step for transferring the inkjet image printed on the image conveying means to a can which is a substrate to be printed.
  • the manufacturing method of the printing can containing this.
  • the method includes a curing step of semi-curing the outermost layer of the transferred material on the image conveying means.
  • FIG. 1 is a schematic diagram illustrating an example of the configuration of the printing system 100.
  • the printing system 100 includes a printing station 10 that is an image forming unit, a conveying belt 20 that is an image conveying unit, a transfer station 30 that is a transferring unit, a mandrel wheel 40 and a mandrel 42 that are can conveying units, and a cleaning station 50 that is a cleaning unit. And an overcoat station 60 as coating means.
  • the printing system 100 may have a configuration other than these.
  • the printing station 10 includes a printing unit 11, and an inkjet image 14 is formed on a blanket 23 included in the transport belt 20 by an inkjet printer head included in the printing unit 11. Only one printing unit 11 or a plurality of printing units 11 may be provided in the printing station 10. By having a plurality of printing units 11, it is possible to cope with high-speed printing, and it is also possible to cope with printing methods with a large number of passes. Therefore, the quality of the printed image is improved, and a high-definition inkjet image 14 is obtained. It can be formed on the blanket 23.
  • the inkjet printer head included in the printing unit 11 typically has a plurality of nozzle heads 12 that eject ink of each color of white (W), black (K), yellow (Y), magenta (M), and cyan (C). Is included.
  • the order of colors is not particularly limited, and the color of the ink is not limited to these. Therefore, colorless clear ink may be used.
  • the inkjet image formed at the printing station 10 includes an easily breakable region.
  • the “easy break region” refers to a region that is easy to break when transferring an inkjet image to a can as compared to a solid image region, specifically, a place where ink droplets exist independently, A location where the ink layer is thin, a location where the ink layer is not continuous and is in an island shape, and the like. More specifically, "highlight part” that is an independent ink droplet that does not overlap between adjacent ink droplets, ink droplets such as muddy point, semi-turbid point, punctuation mark, period and comma "Minimum area", which is a place that exists as a minimal island even if the two overlap.
  • the characters including the minimal area may include characters used for printing such as hiragana, katakana, kanji, alphabet, and numbers.
  • FIG. 2 is a top view (a) schematically showing an inkjet image including an easily breakable region, and a cross-sectional view (b) schematically showing an inkjet image including an easily breakable region formed on a blanket.
  • an easily breakable region 14b included in the inkjet image is an inkjet image region including a photographic design, and as shown in FIG. 2, a highlight portion in which the ink layer of the inkjet image is an independent ink droplet.
  • the ink layer includes a minimum region in an island shape.
  • the easily breakable region 14b is connected to other regions in the inkjet image by a connecting member.
  • the connecting member is not particularly limited as long as the ink layer in the easily breakable region 14b can be connected to other regions in the inkjet image, and is typically an overcoat or an undercoat, but is not limited thereto.
  • the material of the connecting member is not particularly limited as long as the ink layer in the easily breakable region 14b is connected to other regions in the inkjet image, and typically an adhesive is used.
  • the connecting member is typically a layer, and the thickness thereof is not particularly limited as long as the ink layer in the easily breakable region 14b is connected to another region in the inkjet image.
  • the connecting member is an overcoat layer 24.
  • the overcoat layer 24 may be transparent or colored, but the overcoat layer 24 is transferred to the surface of the can 41 by transferring the inkjet image 14 to the can. Since it becomes a base layer in contact with, it does not necessarily need to be transparent, for example, it may be white.
  • the connecting member is the undercoat layer 25, and the ink layer in the easily breakable region 14 b is connected to another ink layer by being the underlay of the inkjet image 14, and is broken at the time of transfer. Transfer defects can be suppressed because the transfer is complete.
  • the connecting member is the undercoat layer 25, the undercoat layer 25 may be transparent or colored, but the undercoat layer 25 is transferred to the can by transferring the inkjet image 14 to the can. Since the surface of 14 will be covered, it is preferable that it is transparent.
  • the overcoat layer 24 and the undercoat layer 25 are not limited in size and the like as long as the easily breakable region can be connected to another ink layer, and a layer may be provided on the entire surface of the inkjet image, or a part of the inkjet image. A layer may be provided, or a layer may be provided in a wider range than the inkjet image.
  • the formation method of the overcoat layer 24 and the undercoat layer 25 is not particularly limited, and typically a wet method such as a coating method is used.
  • the printing unit 11 may be provided with a nozzle bed for discharging the primer layer (Pr).
  • the ink jet image 14 formed is covered with the primer layer by being positioned downstream of the ink jet printer head. be able to. That is, an overcoat layer that connects easily breakable regions can be formed.
  • region can be formed by positioning the nozzle bed which discharges a primer layer (Pr) upstream from an inkjet printer head.
  • the printing unit 11 may further include a UV irradiation unit 13 as a curing unit.
  • a UV irradiation unit 13 As a curing unit.
  • the ink ejected from the ink jet printer head is UV curable ink
  • the ink remaining that may occur when the ink jet image 14 is transferred to the can 41 at the transfer station can be suppressed by semi-curing by UV irradiation.
  • a drying unit may be provided as a curing unit.
  • the drying means can semi-cure the inkjet image 14 by a method such as spraying warm air on the inkjet image.
  • the curing of the inkjet image by heat may include curing the thermosetting resin contained in the ink by heat, curing the ink by blowing off the solvent contained in the ink with heat, and the like.
  • the inkjet image 14 formed on the blanket and the connecting member (both are also referred to as a transfer product) have an outermost surface that is in a semi-cured state, from the viewpoint of adhesive strength to the can 41.
  • the connecting member is the overcoat layer 24
  • the overcoat layer 24 is preferably semi-cured
  • the connecting member is the undercoat layer 25
  • the inkjet image 14 is preferably semi-cured.
  • the inkjet image 14 may be formed directly on the transport belt 20 without using the blanket 23. In this case, it is preferable to provide a release layer on the surface of the conveyor belt 20 for the purpose of smooth transfer.
  • the conveyor belt 20 has an annular shape via a first roller 21 and a second roller 22, and the inkjet image printed on the blanket 23 of the conveyor belt 20 is transferred to the transfer station 30 by circling in the direction of the arrow in the figure. Transport to.
  • the number of blankets 23 of the conveyor belt 20 can be determined as appropriate according to the circumference of the annular conveyor belt and according to the operating speed of the printing system.
  • the conveyance belt 20 may have flexibility, but if the material is excessively flexible, the belt tension becomes insufficient, and deviation may occur during printing or transfer.
  • the material of the conveyor belt 20 is not particularly limited.
  • one or more auxiliary rollers may be provided for the purpose of guiding the conveyance belt.
  • the blanket 23 on which the inkjet image 14 is formed is conveyed to the transfer station 30 along the outer periphery of the first roller 21.
  • a plurality of cans 41 are conveyed to the transfer station 30 by the mandrel wheel 40.
  • the can 41 starts to rotate when the tip of the blanket 23 comes into contact with the conveyed can 41, or the can 41 starts to rotate immediately before the tip of the blanket 23 contacts the can 41.
  • the blanket Inkjet image 14 formed on 23 is transferred in the circumferential direction of can 41, and an inkjet image is formed on the surface of can 41.
  • the blanket 23 and the can 41 may be properly aligned, and the alignment may be performed by a known method.
  • the rotation of the mandrel wheel 40 itself is stopped, and the can 41 of the mandrel 42 is rotated while the mandrel wheel 40 is stopped.
  • the formed inkjet image 14 may be transferred to the can 41.
  • the present embodiment can also be applied to such intermittent printing.
  • the surface of the blanket 23 may be cleaned at the cleaning station 50.
  • the ink jet image 14 can suppress ink remaining on the blanket 23 due to the presence of the connecting member.
  • a cleaning station 50 may be provided to clean the ink on the blanket 23.
  • the cleaning station 50 typically includes a cleaning agent supply unit 51 that discharges the cleaning agent onto the blanket 23 and a scraper 52 that wipes off residual ink on the blanket 23.
  • the blanket 23 whose surface has been cleaned by the cleaning station 50 is guided by the second roller 22 and conveyed again to the printing station 10, and the inkjet image 14 is formed thereon.
  • the can 41 to which the inkjet image 14 has been transferred is conveyed to the overcoat station 60 by the mandrel wheel 40.
  • the inkjet image 14 transferred onto the surface of the can 41 is coated.
  • Varnish is typically used for coating, but other coatings may be used as long as they can protect the inkjet image and improve durability.
  • FIG. 5 shows another example of the printing system of this embodiment.
  • the image printing system 200 is an example using a transport cylinder 120 as an image transport unit.
  • the transfer cylinder 120 is typically a metallic cylindrical member.
  • a blanket 123 is provided, and an inkjet image 114 is formed thereon at the printing station 110.
  • the inkjet image 114 may be formed directly on the transport cylinder 120 instead of on the blanket 123. In this case, it is preferable to provide a release layer on the surface of the transport cylinder 120 for the purpose of smooth transfer.
  • the transport cylinder 120 may include a curing means (not shown) such as a drying means inside. Further, a drying means may be provided instead of the UV irradiation unit 113. With the drying means, it is possible to evaporate the solvent of the ink jet image and make it semi-cured. In addition, when a thermosetting resin is used as an ink binder for forming an ink jet image, it can be semi-cured by heat, and the ink jet image 114 can be easily transferred to the can 141.
  • a curing means such as a drying means inside.
  • a drying means may be provided instead of the UV irradiation unit 113. With the drying means, it is possible to evaporate the solvent of the ink jet image and make it semi-cured.
  • a thermosetting resin is used as an ink binder for forming an ink jet image, it can be semi-cured by heat, and the ink jet image 114 can be easily transferred to the can 141.
  • the inkjet image printed on the can includes an easily breakable region, and the easily breakable region is connected to another region in the inkjet image by a connecting member.
  • Inkjet printing cans Since the printing can of this embodiment can suppress a transfer defect even when it includes an image based on a photograph or a small character, it can suppress an image defect.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Ink Jet (AREA)
  • Printing Methods (AREA)

Abstract

La présente invention a pour objet d'atténuer des défauts de transfert pouvant survenir lors de l'impression d'une image à jet d'encre comprenant une région facile à détacher sur une boîte à l'aide d'un moyen de transport d'image de type à circulation. Ce procédé de fabrication d'une boîte imprimée comprend : une étape d'impression destinée à l'impression d'une image à jet d'encre comprenant une région facile à détacher sur un moyen de transport d'image de type à circulation ; et une étape de transfert destinée au transfert, sur une boîte à imprimer, de l'image à jet d'encre imprimée sur le moyen de transport d'image. L'objectif ci-dessus est atteint par liaison de la région facile à détacher dans l'image à jet d'encre à une autre région.
PCT/JP2019/022200 2018-06-05 2019-06-04 Procédé de fabrication de boîte imprimée, et boîte imprimée WO2019235484A1 (fr)

Applications Claiming Priority (2)

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JP2018-107896 2018-06-05
JP2018107896A JP7171246B2 (ja) 2018-06-05 2018-06-05 印刷缶の製造方法、及び印刷缶

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3792060A1 (fr) * 2019-09-13 2021-03-17 Tampoprint AG Dispositif et procédé d'impression indirecte de pièces pouvant roulées

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JP2011500363A (ja) * 2007-10-19 2011-01-06 カーハーエス・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 容器外周表面で、瓶又は同様の容器に印刷するための装置
JP2012086870A (ja) * 2010-10-19 2012-05-10 Toyo Seikan Kaisha Ltd 印刷シームレス缶及びその製造方法
JP2014223753A (ja) * 2013-05-16 2014-12-04 キヤノン株式会社 転写型インクジェット記録方法、並びにそれに用いる処理液及びこの処理液とインクとのセット
JP2015120341A (ja) * 2013-12-13 2015-07-02 ゼロックス コーポレイションＸｅｒｏｘ Ｃｏｒｐｏｒａｔｉｏｎ 中間転写体の上の犠牲コーティングを使用する間接的な印刷装置
JP2017213895A (ja) * 2016-05-30 2017-12-07 キヤノン株式会社 印刷物、画像記録方法、及び画像記録装置

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JP2010502489A (ja) * 2006-09-12 2010-01-28 アンピカ 筒状印刷媒体への転写による印刷装置
JP2011500363A (ja) * 2007-10-19 2011-01-06 カーハーエス・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング 容器外周表面で、瓶又は同様の容器に印刷するための装置
JP2009240925A (ja) * 2008-03-31 2009-10-22 Fujifilm Corp 液体塗布装置、液体塗布方法、インクジェット記録装置、及びインクジェット記録方法
JP2012086870A (ja) * 2010-10-19 2012-05-10 Toyo Seikan Kaisha Ltd 印刷シームレス缶及びその製造方法
JP2014223753A (ja) * 2013-05-16 2014-12-04 キヤノン株式会社 転写型インクジェット記録方法、並びにそれに用いる処理液及びこの処理液とインクとのセット
JP2015120341A (ja) * 2013-12-13 2015-07-02 ゼロックス コーポレイションＸｅｒｏｘ Ｃｏｒｐｏｒａｔｉｏｎ 中間転写体の上の犠牲コーティングを使用する間接的な印刷装置
JP2017213895A (ja) * 2016-05-30 2017-12-07 キヤノン株式会社 印刷物、画像記録方法、及び画像記録装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3792060A1 (fr) * 2019-09-13 2021-03-17 Tampoprint AG Dispositif et procédé d'impression indirecte de pièces pouvant roulées

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