WO2001032436A1 - Druckwerk für den druck von wellkarton - Google Patents
Druckwerk für den druck von wellkarton Download PDFInfo
- Publication number
- WO2001032436A1 WO2001032436A1 PCT/EP2000/010752 EP0010752W WO0132436A1 WO 2001032436 A1 WO2001032436 A1 WO 2001032436A1 EP 0010752 W EP0010752 W EP 0010752W WO 0132436 A1 WO0132436 A1 WO 0132436A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- printing
- blanket
- cylinder
- layer
- corrugated cardboard
- Prior art date
Links
Classifications
-
- 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
- B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
- B41N10/02—Blanket structure
-
- 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
- B41N10/00—Blankets or like coverings; Coverings for wipers for intaglio printing
- B41N10/02—Blanket structure
- B41N10/04—Blanket structure multi-layer
-
- 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
- B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
- B41N2210/02—Top layers
-
- 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
- B41N2210/00—Location or type of the layers in multi-layer blankets or like coverings
- B41N2210/14—Location or type of the layers in multi-layer blankets or like coverings characterised by macromolecular organic compounds
Definitions
- the invention relates to a device for printing on uneven substrates.
- the flexographic printing process a printing form with raised printing surfaces is used for this purpose, by means of which the printed image can be applied directly to the printing material.
- BESTATIGUNGSKOPIE In offset printing, an indirect printing process, the print image is transferred from a printing form to a transfer cylinder, which is referred to as a blanket cylinder. The print image is then transferred from this onto the printing substrate.
- a flexible layer is normally applied to the blanket cylinder.
- a so-called printing blanket or rubber blanket is used for this. This blanket is dimensionally stable in its plane of expansion, but is deformable transversely to it. It can also be compressible to a certain extent in the direction of its thickness. For this purpose, it is known that compressible layers are provided within a printing blanket.
- Blankets or the printing blankets used in offset printing are required in the offset printing process for the transfer of the printed image, above all to compensate for unevenness in the surface of the printing substrate. Since the printing forms for offset printing usually consist of thin sheets or foils, they cannot adapt to the substrate surface to a sufficient extent.
- a printing blanket must be pressed from the printing blanket cylinder against the counterpressure cylinder with a relatively high contact pressure in order to adapt it to the printing material surface, which is necessary for adequate printing quality. This can also not be avoided by using so-called co-pressurized printing blankets, since they only have a higher deformability than normal printing blankets, but also require a comparatively high contact pressure.
- co-pressurized printing blankets since they only have a higher deformability than normal printing blankets, but also require a comparatively high contact pressure.
- corrugated cardboard when printing on corrugated cardboard, a special problem arises which is related to the internal structure of a corrugated cardboard. Since a corrugated connecting layer is provided between two outer layers to lighten the weight, corrugated cardboard is not a homogeneous material. The outer layers used on the top and bottom of such corrugated cardboard are only at certain points or lines and are offset on both sides connected to each other by means of a corrugated intermediate layer. When a corrugated cardboard is loaded, there are thus uneven conditions over the surface. In particular, each cover layer in the areas between the connection points with the corrugated intermediate layer is flexible and can therefore dodge in these areas when loaded. When subjected to a load in a printing process, this results in relatively unfavorable conditions for uniform printing.
- compressible printing blankets a procedure which is not comparable with the above-mentioned method of supporting a printing form is used.
- a compressible printing blanket enables deformations by reducing the thickness only under comparatively high pressure.
- the to adapt to the upper Surface structure of the corrugated cardboard necessary deformations in such printing blankets would inevitably lead to the destruction of the corrugated cardboard in the printing process before the printing blanket could deform sufficiently. Therefore, no method is known by means of which a highly uniform pressure distribution is possible in offset printing when processing a corrugated cardboard in a printing process.
- the aim of the invention is to enable the printing of high quality printed images on a corrugated cardboard.
- the object of the invention is therefore to provide a device according to the preamble of patent claim 1, by means of which a high-quality and uniformly generated print images on a corrugated cardboard is possible in the offset printing process, the corrugated cardboard not being mechanically damaged.
- Fig. 2 shows a printing process in a printing zone
- Fig. 3 shows a detailed representation of the pressure zone.
- an offset printing unit is shown.
- the printing unit has an impression cylinder 1, a printing blanket cylinder 2, a forme cylinder 3 and assigned an inking unit 4 and a dampening unit 5.
- the impression cylinder 1 is used to guide a printing material sheet. For this purpose, it is equipped with a gripper system, which is not shown here.
- the printing material sheet is guided on a smooth surface.
- the blanket cylinder 2 is located opposite the impression cylinder 1.
- the blanket cylinder 2 is covered with a blanket.
- the blanket is stable in length and flexible in the transverse direction to its surface area. It can be compressible to a small extent.
- the blanket is firmly clamped on the blanket cylinder 2.
- the blanket cylinder 2 the forme cylinder 3 is assigned.
- a printing form is mounted on the forme cylinder 3, which in offset printing usually consists of a thin metal plate.
- the printing form is supplied with ink by the inking unit 4, the printing areas having previously been distinguished from the non-printing areas by the dampening unit 5 by means of water supply.
- FIG. 2 shows a printing zone corresponding to FIG. 1 between the blanket cylinder 2 and the impression cylinder 1, the indicated diameter ratios between the impression cylinder 1 indicated below and the blanket cylinder 2 indicated above need not correspond to reality.
- a printing material is shown on the impression cylinder 1 indicated below, which is designed here as corrugated cardboard 6.
- the corrugated cardboard 6 consists of a lower cover layer 6A and an upper cover layer 6B.
- the two cover layers are connected to one another by a corrugated connection layer 6C, the lower cover layer 6B being glued to the lower edges of the connection layer 6C and the upper cover layer 6A being glued to the upper edges of the connection layer 6C.
- This connection creates a very stable printing material with regard to its flexural rigidity.
- the printing blanket cylinder 2 is in turn arranged opposite the impression cylinder 1.
- a printing blanket 7 is indicated on the outside of the printing blanket cylinder 2. It is shown here as a homogeneous layer, although normally
- Printing blankets designed as so-called rubber blankets and are composed at least of a non-stretchable base layer and a flexible cover layer. In addition, there may be additional intermediate layers that improve the functionality of the printing blanket 7.
- a blanket pad 8 is further arranged below the blanket 7 directly on the surface of the blanket cylinder 2.
- the printing blanket underlay 8 is composed of an elastic base layer 8A and a flexible cover layer 8B arranged thereon.
- the tensile base layer 8A can be a rigid plastic film.
- the flexible cover layer 8B is preferably a layer of foam of certain qualifications. Due to the stretch-resistant base layer 8A, the blanket 8, with the foam firmly connected to the film, can be placed on the blanket 7 together with the blanket 7
- Tension blanket cylinder 2 The surface of the blanket cylinder 2 is therefore identical to a normal blanket cylinder 2 with blanket 7.
- FIG. 3 shows a detail from FIG. 2 in detail.
- the printing material can be seen on the underside as corrugated cardboard 6.
- the printing blanket 7 is arranged, which here has adapted to the deformed surface of the corrugated cardboard 6.
- the differences in height with respect to the surface of the printing blanket cylinder 2, which is to be understood at the top, are represented by the as Foam layer executed flexible cover layer 8B of the blanket 8 compensated.
- the foam is compressed at the points where the upper side of the corrugated cardboard 6 is firm, ie preferably in the area of the glueing with the connecting layer 6C.
- the blanket 7 can evade by being deformed accordingly by bending.
- the printing blanket 7 can follow the deformable surface of the corrugated cardboard 6, the flexible cover layer 8B taking on this compensating function through the formation as a foam layer.
- Foam layers for the blanket 8 this device can be used for different qualities of substrates with uneven surfaces. With relatively easily compressible substrates such as corrugated board 6 shown in the example, a softer foam is required than with relatively hard substrates such as embossed solid board.
- the thickness of the printing blanket base 8 is important for a good function and a required print quality. Basically, blanket pads 8 with a thickness of 0.5 mm to 3 mm are suitable for the application mentioned. For the application technology of known printing materials, the selection of printing blanket supports 8 with a thickness of 1 mm to 2 mm is preferred.
- the foam is one of many cycles of action prefer reversible compressible foam. An open-cell foam is preferred.
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00977452A EP1227937B1 (de) | 1999-11-02 | 2000-10-31 | Druckwerk und verfahren für den druck von wellkarton |
AT00977452T ATE249937T1 (de) | 1999-11-02 | 2000-10-31 | Druckwerk und verfahren für den druck von wellkarton |
CA002389673A CA2389673C (en) | 1999-11-02 | 2000-10-31 | Printing device for printing on corrugated cardboard |
DE50003760T DE50003760D1 (de) | 1999-11-02 | 2000-10-31 | Druckwerk und verfahren für den druck von wellkarton |
US10/111,929 US6957606B1 (en) | 1999-11-02 | 2000-10-31 | Printer for printing corrugated cardboard |
JP2001534615A JP2003512959A (ja) | 1999-11-02 | 2000-10-31 | 段ボール紙の印刷のための印刷装置 |
AU15166/01A AU1516601A (en) | 1999-11-02 | 2000-10-31 | Printer for printing corrugated cardboard |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19952802.0 | 1999-11-02 | ||
DE19952802A DE19952802A1 (de) | 1999-11-02 | 1999-11-02 | Druckwerk für den Druck von Wellkarton |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001032436A1 true WO2001032436A1 (de) | 2001-05-10 |
Family
ID=7927716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2000/010752 WO2001032436A1 (de) | 1999-11-02 | 2000-10-31 | Druckwerk für den druck von wellkarton |
Country Status (9)
Country | Link |
---|---|
US (1) | US6957606B1 (de) |
EP (1) | EP1227937B1 (de) |
JP (1) | JP2003512959A (de) |
CN (1) | CN1212942C (de) |
AT (1) | ATE249937T1 (de) |
AU (1) | AU1516601A (de) |
CA (1) | CA2389673C (de) |
DE (2) | DE19952802A1 (de) |
WO (1) | WO2001032436A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003013839A1 (de) * | 2001-08-10 | 2003-02-20 | Model Holding Ag | Oberflächenstrukturierter karton, vorrichtung und verfahren zur herstellung desselben |
ITMO20030022A1 (it) * | 2003-02-03 | 2004-08-04 | Comital Spa | Metodo ed apparato per decorare oggetti, e semilavorati |
CN1317136C (zh) * | 2003-10-14 | 2007-05-23 | 上海外贸界龙彩印厂 | 直接胶版印刷微型瓦楞纸板的印刷方法 |
US20050098534A1 (en) * | 2003-11-12 | 2005-05-12 | Molecular Imprints, Inc. | Formation of conductive templates employing indium tin oxide |
US7498274B2 (en) * | 2004-05-14 | 2009-03-03 | Day International, Inc. | Composite packing material for use in offset lithography and method of making |
CN103991298B (zh) * | 2014-04-29 | 2017-06-06 | 广东绿之彩印刷科技股份有限公司 | 一种微细瓦楞纸板的胶印工艺 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2337962A1 (de) * | 1973-07-26 | 1975-04-03 | Phoenix Gummiwerke Ag | Zweiteiliges drucktuch |
US5350623A (en) * | 1992-09-21 | 1994-09-27 | Derrick Steven L | Compressible blanket assembly |
DE4437025A1 (de) * | 1994-10-10 | 1996-04-11 | Joachim Dr Dipl Che Patschorke | Drucktuch-Kombination |
JPH1142869A (ja) * | 1997-07-29 | 1999-02-16 | Sumitomo Rubber Ind Ltd | アンダーブランケット |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3652376A (en) * | 1969-07-11 | 1972-03-28 | Grace W R & Co | Multi-ply press packing for the impression member in a letter press |
JPS5842047A (ja) * | 1981-09-07 | 1983-03-11 | Ricoh Co Ltd | ジアゾ湿式複写機用現像装置 |
JPS61144351A (ja) * | 1984-12-19 | 1986-07-02 | Yoji Iwasaki | 段ボ−ルシ−トの印刷方法 |
US4817527A (en) * | 1986-03-06 | 1989-04-04 | R.R. Donnelley & Sons Company | Printing blanket with carrier plate and method of assembly |
US6374734B1 (en) * | 1989-10-05 | 2002-04-23 | Heidelberger Druckmaschinen Ag | Tubular printing blanket |
USRE38468E1 (en) * | 1996-12-04 | 2004-03-23 | Day International, Inc. | Replaceable sleeve |
FR2770451B1 (fr) * | 1997-11-06 | 1999-12-31 | Rollin Sa | Couche lithographique perfectionnee pour blanchet d'impression et blanchet equipe de cette couche |
JP3357587B2 (ja) * | 1997-11-14 | 2002-12-16 | 住友ゴム工業株式会社 | 印刷用ブランケット |
-
1999
- 1999-11-02 DE DE19952802A patent/DE19952802A1/de not_active Withdrawn
-
2000
- 2000-10-31 CN CNB008180954A patent/CN1212942C/zh not_active Expired - Fee Related
- 2000-10-31 WO PCT/EP2000/010752 patent/WO2001032436A1/de active IP Right Grant
- 2000-10-31 US US10/111,929 patent/US6957606B1/en not_active Expired - Fee Related
- 2000-10-31 EP EP00977452A patent/EP1227937B1/de not_active Expired - Lifetime
- 2000-10-31 AT AT00977452T patent/ATE249937T1/de not_active IP Right Cessation
- 2000-10-31 DE DE50003760T patent/DE50003760D1/de not_active Expired - Lifetime
- 2000-10-31 JP JP2001534615A patent/JP2003512959A/ja active Pending
- 2000-10-31 CA CA002389673A patent/CA2389673C/en not_active Expired - Fee Related
- 2000-10-31 AU AU15166/01A patent/AU1516601A/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2337962A1 (de) * | 1973-07-26 | 1975-04-03 | Phoenix Gummiwerke Ag | Zweiteiliges drucktuch |
US5350623A (en) * | 1992-09-21 | 1994-09-27 | Derrick Steven L | Compressible blanket assembly |
DE4437025A1 (de) * | 1994-10-10 | 1996-04-11 | Joachim Dr Dipl Che Patschorke | Drucktuch-Kombination |
JPH1142869A (ja) * | 1997-07-29 | 1999-02-16 | Sumitomo Rubber Ind Ltd | アンダーブランケット |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 05 31 May 1999 (1999-05-31) * |
Also Published As
Publication number | Publication date |
---|---|
CN1414913A (zh) | 2003-04-30 |
US6957606B1 (en) | 2005-10-25 |
EP1227937A1 (de) | 2002-08-07 |
DE50003760D1 (de) | 2003-10-23 |
JP2003512959A (ja) | 2003-04-08 |
EP1227937B1 (de) | 2003-09-17 |
DE19952802A1 (de) | 2001-05-03 |
CA2389673A1 (en) | 2001-05-10 |
CA2389673C (en) | 2006-07-25 |
CN1212942C (zh) | 2005-08-03 |
AU1516601A (en) | 2001-05-14 |
ATE249937T1 (de) | 2003-10-15 |
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