EP1707354A1 - Intaglio offset printing machine - Google Patents
Intaglio offset printing machine Download PDFInfo
- Publication number
- EP1707354A1 EP1707354A1 EP05006838A EP05006838A EP1707354A1 EP 1707354 A1 EP1707354 A1 EP 1707354A1 EP 05006838 A EP05006838 A EP 05006838A EP 05006838 A EP05006838 A EP 05006838A EP 1707354 A1 EP1707354 A1 EP 1707354A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- intaglio
- transferring
- offset printing
- printing machine
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/10—Intaglio printing ; Gravure printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F9/00—Rotary intaglio printing presses
- B41F9/01—Rotary intaglio printing presses for indirect printing
Definitions
- the present invention relates to a printing machine.
- the present invention relates to an intaglio offset printing machine.
- Figs. 1 and 1A of the drawings illustrate a conventional intaglio printing machine comprising a metal intaglio plate cylinder 10 and an impression cylinder 20 for carrying out direct printing.
- the plate cylinder 10 includes a plurality of recesses 11 into which ink is filled.
- a gap 12 is defined between the plate cylinder 10 and the impression cylinder 20, allowing passage of a soft, thin object 1 (such as a piece of paper for producing bills) to be printed.
- the impression cylinder 20 impresses the soft, thin object 1, urging the soft, thin object 1 into the recesses 11 of the plate cylinder 10.
- the ink in the recesses 11 is fixed on the surface of the soft, thin object 1. An intaglio printing is thus carried out on the surface of the soft, thin object 1.
- the metal intaglio plate cylinder 10 and the impression cylinder 20 are only suitable for carrying out printing on soft, thin objects, not suitable for printing on a surface of hard materials.
- an intaglio printing machine disclosed in U.S. Patent No. 4,566,384 includes a distributing cylinder 14, a form roller 13, and a plate cylinder 10'.
- a printing plate 100 is provided on the plate cylinder 10' and comprises an ink-repellent outer layer, a photo-sensitive layer laminated beneath the ink-repellent outer layer, and an elastic layer laminated beneath the photo-sensitive layer.
- the printing plate 100 includes a plurality of recesses 101 on a surface thereof. Ink is filled into the recesses 101.
- the plate cylinder 10' directly impresses a hard object 2 to be printed.
- the ink in the recesses 101 of the plate cylinder 10' is fixed on the surface of the hard object 2, thereby completing the intaglio printing.
- the printing plate 100 on the plate cylinder 10' allows printing on a surface of a hard object, the printing result is still limited to poor matching in the deformation of the printing plate 100 and the deformation of the hard object 2.
- the ink is supplied into the recesses 101 of the printing plate 100 by wiping the printing plate 100, resulting in shortening of the life of the printing plate 100, as the printing plate 100 made of elastic material is damaged. After printing, a portion of the residual ink on the printing plate 100 is wiped off from the printing plate 100 while another portion of the residual ink on the printing plate 100 is wiped into recesses 101 of the printing plate 100, further shortening the life of the printing plate 100.
- the elastic coefficient of the printing plate 100 changes as the printing plate 100 is damaged by wiping.
- the image transcribed from the printing plate 100 onto the surface of the hard object 2 is unstable due to variation of the elastic coefficient of the printing plate 100. Namely, different images are generated through the same printing plate 100. The printing result is thus unstable and unsatisfactory.
- An object of the present invention is to provide an intaglio offset printing machine with excellent matching in a surface of a transferring cylinder of the intaglio offset printing machine and a surface of a hard object to be printed, thereby prolonging the life of the intaglio offset printing machine.
- Another object of the present invention is to provide an intaglio offset printing machine that may carry out two different offset printing operations.
- An intaglio offset printing machine in accordance with the present invention comprises a metal intaglio plate cylinder including a plurality of recesses in a circumference thereof and a transferring cylinder. Ink is filled into the recesses.
- the transferring cylinder presses against the metal intaglio plate cylinder, allowing the ink in the recesses of the metal intaglio plate cylinder to be transferred onto the transferring cylinder when the metal intaglio plate cylinder and the transferring cylinder are turned synchronously.
- the transferring cylinder presses against a surface of an object to be printed.
- the ink on the transferring cylinder is transferred onto the surface of the object passing through the transferring cylinder.
- the intaglio offset printing machine in accordance with the present invention may further include an impression cylinder for exerting a pressure to the transferring cylinder.
- a gap is defined between the impression cylinder and the transferring cylinder.
- the object to be printed is moved to pass through the gap for carrying out intaglio offset printing when the impression cylinder and the transferring cylinder are turned synchronously.
- the transferring cylinder comprises an elastic sleeve mounted therearound. A surface of the elastic sleeve deforms when the metal intaglio plate cylinder presses against the transferring cylinder.
- the elastic sleeve is made of rubber.
- the intaglio plate cylinder is an engraved metal plate.
- the object to be printed may be soft and thin or hard.
- an intaglio offset printing machine in accordance with the present invention comprises a metal intaglio plate cylinder 10, an impression cylinder 20, and a transferring cylinder 30.
- the metal plate cylinder 10, the impression cylinder 20, and the transferring cylinder 30 are arranged in parallel.
- the metal intaglio plate cylinder 10 presses against the transferring cylinder 30, which, in turn, presses against the impression cylinder 20.
- the metal intaglio plate cylinder 10 includes an engraved metal plate with a plurality of recesses 11 in a circumference thereof.
- the recesses 11 form a specific image.
- Ink may be filled into the recesses 11 by conventional wiping.
- the metal intaglio plate cylinder 10 is made of metal and thus not damaged by wiping.
- the metal intaglio plate cylinder 10 is driven to turn via an appropriate means. A tight contact is provided between the metal intaglio plate cylinder 10 and the transferring cylinder 30.
- the ink in the recesses 11 of the metal intaglio plate cylinder 10 can be transferred onto the transferring cylinder 30.
- the impression cylinder 20 presses against the transferring cylinder 30 and thus provides a printing pressure to the transferring cylinder 30 suitable for improving the printing quality.
- a gap 31 is formed between the impression cylinder 20 and the transferring cylinder 30.
- an elastic sleeve 300 is mounted around the transferring cylinder 30.
- the metal intaglio plate cylinder 10 presses against the transferring cylinder 30 an appropriate deformation is generated on the surface of the elastic sleeve 300 so as to move into the recesses 11 of the metal intaglio plate cylinder 10.
- the ink 11 in the recesses 11 of the metal intaglio plate cylinder 10 is adhered to the surface of the elastic sleeve 300 of the transferring cylinder 30, forming an ink image 301 to be transferred.
- the elastic sleeve is made of natural rubber, artificial rubber, or other elastic material.
- the elastic sleeve is made of a rubber blanket.
- the intaglio offset printing machine in accordance with the present invention may only include a metal intaglio plate cylinder 10 and a transferring cylinder 30. Namely, the impression cylinder 20 can be omitted if desired.
- the transferring cylinder 30 presses against the surface of the hard object 2 for carrying out intaglio offset printing.
- the metal intaglio plate cylinder 10 and the impression cylinder 20 can only used to carry out printing on a soft, thin object 1, whereas the metal intaglio plate cylinder 10 and the transferring cylinder 30 and/or the impression cylinder 20 can be used to carry out printing on a hard object 2.
- the disadvantages of unstable printing effect and unsatisfactory printing effect of the intaglio printing machine disclosed in U.S. Patent No. 4,566,384 is avoided by the intaglio offset printing machine in accordance with the present invention.
- the intaglio offset printing machine in accordance with the present invention can be used to carry out printing on either soft or hard objects.
- the life of the intaglio offset printing machine in accordance with the present invention is relatively long, as the metal intaglio plate cylinder is almost not damaged by the wiping operation for filling ink for printing purposes or for removing residual ink after printing.
Abstract
An intaglio offset printing machine includes a metal intaglio plate cylinder (10) having a plurality of recesses (11) in a circumference thereof and a transferring cylinder (30). Ink is filled into the recesses (11). The transferring cylinder (30) presses against the metal intaglio plate cylinder (10), allowing the ink in the recesses (11) of the metal intaglio plate cylinder (10) to be transferred onto the transferring cylinder (30) when the metal intaglio plate cylinder (10) and the transferring cylinder (30) are turned synchronously. The transferring cylinder presses against a surface of an object (2) to be printed. Thus, the ink on the transferring cylinder (30) is transferred onto the surface of the object (2) passing through the transferring cylinder (30).
Description
- The present invention relates to a printing machine. In particular, the present invention relates to an intaglio offset printing machine.
- Figs. 1 and 1A of the drawings illustrate a conventional intaglio printing machine comprising a metal
intaglio plate cylinder 10 and animpression cylinder 20 for carrying out direct printing. Theplate cylinder 10 includes a plurality ofrecesses 11 into which ink is filled. Agap 12 is defined between theplate cylinder 10 and theimpression cylinder 20, allowing passage of a soft, thin object 1 (such as a piece of paper for producing bills) to be printed. When the soft,thin object 1 to be printed is passing through thegap 12, theimpression cylinder 20 impresses the soft,thin object 1, urging the soft,thin object 1 into therecesses 11 of theplate cylinder 10. As illustrated in Fig. 1A, the ink in therecesses 11 is fixed on the surface of the soft,thin object 1. An intaglio printing is thus carried out on the surface of the soft,thin object 1. - However, the metal
intaglio plate cylinder 10 and theimpression cylinder 20 are only suitable for carrying out printing on soft, thin objects, not suitable for printing on a surface of hard materials. - As illustrated in Fig. 2 of the drawings, an intaglio printing machine disclosed in
U.S. Patent No. 4,566,384 includes a distributingcylinder 14, aform roller 13, and a plate cylinder 10'. Aprinting plate 100 is provided on the plate cylinder 10' and comprises an ink-repellent outer layer, a photo-sensitive layer laminated beneath the ink-repellent outer layer, and an elastic layer laminated beneath the photo-sensitive layer. Theprinting plate 100 includes a plurality ofrecesses 101 on a surface thereof. Ink is filled into therecesses 101. - In operation, the plate cylinder 10' directly impresses a
hard object 2 to be printed. The ink in therecesses 101 of the plate cylinder 10' is fixed on the surface of thehard object 2, thereby completing the intaglio printing. - Although the
printing plate 100 on the plate cylinder 10' allows printing on a surface of a hard object, the printing result is still limited to poor matching in the deformation of theprinting plate 100 and the deformation of thehard object 2. The ink is supplied into therecesses 101 of theprinting plate 100 by wiping theprinting plate 100, resulting in shortening of the life of theprinting plate 100, as theprinting plate 100 made of elastic material is damaged. After printing, a portion of the residual ink on theprinting plate 100 is wiped off from theprinting plate 100 while another portion of the residual ink on theprinting plate 100 is wiped intorecesses 101 of theprinting plate 100, further shortening the life of theprinting plate 100. The elastic coefficient of theprinting plate 100 changes as theprinting plate 100 is damaged by wiping. As a result, the image transcribed from theprinting plate 100 onto the surface of thehard object 2 is unstable due to variation of the elastic coefficient of theprinting plate 100. Namely, different images are generated through thesame printing plate 100. The printing result is thus unstable and unsatisfactory. - An object of the present invention is to provide an intaglio offset printing machine with excellent matching in a surface of a transferring cylinder of the intaglio offset printing machine and a surface of a hard object to be printed, thereby prolonging the life of the intaglio offset printing machine.
- Another object of the present invention is to provide an intaglio offset printing machine that may carry out two different offset printing operations.
- An intaglio offset printing machine in accordance with the present invention comprises a metal intaglio plate cylinder including a plurality of recesses in a circumference thereof and a transferring cylinder. Ink is filled into the recesses. The transferring cylinder presses against the metal intaglio plate cylinder, allowing the ink in the recesses of the metal intaglio plate cylinder to be transferred onto the transferring cylinder when the metal intaglio plate cylinder and the transferring cylinder are turned synchronously. The transferring cylinder presses against a surface of an object to be printed. Thus, the ink on the transferring cylinder is transferred onto the surface of the object passing through the transferring cylinder.
- The intaglio offset printing machine in accordance with the present invention may further include an impression cylinder for exerting a pressure to the transferring cylinder. A gap is defined between the impression cylinder and the transferring cylinder. The object to be printed is moved to pass through the gap for carrying out intaglio offset printing when the impression cylinder and the transferring cylinder are turned synchronously. Preferably, the transferring cylinder comprises an elastic sleeve mounted therearound. A surface of the elastic sleeve deforms when the metal intaglio plate cylinder presses against the transferring cylinder. Preferably, the elastic sleeve is made of rubber.
- Preferably, the intaglio plate cylinder is an engraved metal plate.
- The object to be printed may be soft and thin or hard.
- Other objects, advantages and novel features of this invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
-
- Fig. 1 is a schematic sectional view of a conventional intaglio printing machine;
- Fig. 1 A is an enlarged view of a portion of the intaglio printing machine in Fig. 1;
- Fig. 2 is a schematic sectional view of another conventional intaglio printing machine; and
- Fig. 3 is a schematic sectional view of an intaglio offset printing machine in accordance with the present invention.
- Referring to Fig. 3, an intaglio offset printing machine in accordance with the present invention comprises a metal
intaglio plate cylinder 10, animpression cylinder 20, and a transferringcylinder 30. Themetal plate cylinder 10, theimpression cylinder 20, and the transferringcylinder 30 are arranged in parallel. The metalintaglio plate cylinder 10 presses against the transferringcylinder 30, which, in turn, presses against theimpression cylinder 20. - Still referring to Fig. 3, the metal
intaglio plate cylinder 10 includes an engraved metal plate with a plurality ofrecesses 11 in a circumference thereof. Therecesses 11 form a specific image. Ink may be filled into therecesses 11 by conventional wiping. The metalintaglio plate cylinder 10 is made of metal and thus not damaged by wiping. The metalintaglio plate cylinder 10 is driven to turn via an appropriate means. A tight contact is provided between the metalintaglio plate cylinder 10 and the transferringcylinder 30. Thus, the ink in therecesses 11 of the metalintaglio plate cylinder 10 can be transferred onto the transferringcylinder 30. - Still referring to Fig. 3, the
impression cylinder 20 presses against the transferringcylinder 30 and thus provides a printing pressure to the transferringcylinder 30 suitable for improving the printing quality. Agap 31 is formed between theimpression cylinder 20 and the transferringcylinder 30. When theimpression cylinder 20 and the transferringcylinder 30 are turned synchronously, ahard object 20 is passed through thegap 31 for carrying out intaglio offset printing. The pressure from theimpression cylinder 20 is directly imparted to thehard object 2. - Still referring to Fig. 3, an
elastic sleeve 300 is mounted around the transferringcylinder 30. When the metalintaglio plate cylinder 10 presses against the transferringcylinder 30, an appropriate deformation is generated on the surface of theelastic sleeve 300 so as to move into therecesses 11 of the metalintaglio plate cylinder 10. Thus, when the metalintaglio plate cylinder 10 and the transferringcylinder 30 are turned synchronously, theink 11 in therecesses 11 of the metalintaglio plate cylinder 10 is adhered to the surface of theelastic sleeve 300 of the transferringcylinder 30, forming anink image 301 to be transferred. Preferably, the elastic sleeve is made of natural rubber, artificial rubber, or other elastic material. Alternatively, the elastic sleeve is made of a rubber blanket. - Still referring to Fig. 3, when the
hard object 2 is passing through thegap 31, since theimpression cylinder 20 presses against the surface of thehard object 2, theink image 301 on theelastic sleeve 300 is transferred onto the surface of thehard object 2, completing the intaglio offset printing of the image on the surface of thehard object 2. - The intaglio offset printing machine in accordance with the present invention may only include a metal
intaglio plate cylinder 10 and a transferringcylinder 30. Namely, theimpression cylinder 20 can be omitted if desired. The transferringcylinder 30 presses against the surface of thehard object 2 for carrying out intaglio offset printing. - Referring to Fig. 1 and 3, the metal
intaglio plate cylinder 10 and theimpression cylinder 20 according to prior art can only used to carry out printing on a soft,thin object 1, whereas the metalintaglio plate cylinder 10 and the transferringcylinder 30 and/or theimpression cylinder 20 can be used to carry out printing on ahard object 2. - Further, the disadvantages of unstable printing effect and unsatisfactory printing effect of the intaglio printing machine disclosed in
U.S. Patent No. 4,566,384 is avoided by the intaglio offset printing machine in accordance with the present invention. Further, the intaglio offset printing machine in accordance with the present invention can be used to carry out printing on either soft or hard objects. Further, the life of the intaglio offset printing machine in accordance with the present invention is relatively long, as the metal intaglio plate cylinder is almost not damaged by the wiping operation for filling ink for printing purposes or for removing residual ink after printing. - While the principles of this invention have been disclosed in connection with a specific embodiment, it should be understood by those skilled in the art that these descriptions are not intended to limit the scope of the invention, and that any modification and variation without departing the spirit of the invention is intended to be covered by the scope of this invention defined only by the appended claims.
Claims (9)
- An intaglio offset printing machine comprising:a metal intaglio plate cylinder including a plurality of recesses in a circumference thereof, with ink being adapted to be filled into the recesses; anda transferring cylinder pressing against the metal intaglio plate cylinder, allowing ink in the recesses of the metal intaglio plate cylinder to be transferred onto the transferring cylinder when the metal intaglio plate cylinder and the transferring cylinder are turned synchronously, the transferring cylinder being adapted to press against a surface of an object to be printed, with the ink on the transferring cylinder being transferred onto the surface of the object passing through the transferring cylinder.
- The intaglio offset printing machine as claimed in claim 1, further comprising an impression cylinder for exerting a pressure to the transferring cylinder, a gap being defined between the impression cylinder and the transferring cylinder, the object to be printed being moved to pass through the gap for carrying out intaglio offset printing when the impression cylinder and the transferring cylinder are turned synchronously.
- The intaglio offset printing machine as claimed in claim 2, wherein the transferring cylinder comprises an elastic sleeve mounted therearound, and wherein a surface of the elastic sleeve deforms when the metal intaglio plate cylinder presses against the transferring cylinder.
- The intaglio offset printing machine as claimed in claim 3, wherein the elastic sleeve is made of rubber.
- The intaglio offset printing machine as claimed in claim 1, wherein the intaglio plate cylinder is an engraved metal plate.
- The intaglio offset printing machine as claimed in claim 1, wherein the machine is suitable for printing on the object made from a soft and thin sheet.
- The intaglio offset printing machine as claimed in claim 1, wherein the machine is suitable for printing on the object made from a soft or hard material.
- The intaglio offset printing machine as claimed in claim 1, wherein the transferring cylinder comprises an elastic sleeve mounted therearound, a surface of the elastic sleeve deforms when the metal intaglio plate cylinder presses against the transferring cylinder.
- The intaglio offset printing machine as claimed in claim 8, wherein the elastic sleeve is made of rubber, or elastic material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05006838A EP1707354A1 (en) | 2005-03-30 | 2005-03-30 | Intaglio offset printing machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05006838A EP1707354A1 (en) | 2005-03-30 | 2005-03-30 | Intaglio offset printing machine |
Publications (1)
Publication Number | Publication Date |
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EP1707354A1 true EP1707354A1 (en) | 2006-10-04 |
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ID=34934567
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05006838A Withdrawn EP1707354A1 (en) | 2005-03-30 | 2005-03-30 | Intaglio offset printing machine |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1410832A (en) * | 1964-10-08 | 1965-09-10 | Printing process, in particular on paper, installation for implementing the present process or similar process, as well as the printed media conforming to those obtained by the present process or similar process | |
US4445432A (en) * | 1980-07-28 | 1984-05-01 | Corning Glass Works | Article decorating |
US4566384A (en) | 1983-01-18 | 1986-01-28 | Dainippon Screen Mfg. Co., Ltd. | Intaglio printing plate and printing method |
US4672893A (en) * | 1985-03-21 | 1987-06-16 | Paramount Packaging | Flexo-gravure printing |
EP0711671A1 (en) * | 1994-11-09 | 1996-05-15 | Nippon Oil Co., Ltd. | Method for transferring ink for printing process |
US5718171A (en) * | 1994-01-18 | 1998-02-17 | Man Roland Druckmaschinen Ag | Process and rotary printing machine for indirect rotogravure printing |
US6006665A (en) * | 1997-10-30 | 1999-12-28 | Didde Web Press Corporation | Pliable anilox roller |
US6640705B1 (en) * | 1999-05-10 | 2003-11-04 | Man Roland Druckmaschinen Ag | Rotary printing machine with a plate cylinder, a transfer cylinder and an impression cylinder |
-
2005
- 2005-03-30 EP EP05006838A patent/EP1707354A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1410832A (en) * | 1964-10-08 | 1965-09-10 | Printing process, in particular on paper, installation for implementing the present process or similar process, as well as the printed media conforming to those obtained by the present process or similar process | |
US4445432A (en) * | 1980-07-28 | 1984-05-01 | Corning Glass Works | Article decorating |
US4566384A (en) | 1983-01-18 | 1986-01-28 | Dainippon Screen Mfg. Co., Ltd. | Intaglio printing plate and printing method |
US4672893A (en) * | 1985-03-21 | 1987-06-16 | Paramount Packaging | Flexo-gravure printing |
US5718171A (en) * | 1994-01-18 | 1998-02-17 | Man Roland Druckmaschinen Ag | Process and rotary printing machine for indirect rotogravure printing |
EP0711671A1 (en) * | 1994-11-09 | 1996-05-15 | Nippon Oil Co., Ltd. | Method for transferring ink for printing process |
US6006665A (en) * | 1997-10-30 | 1999-12-28 | Didde Web Press Corporation | Pliable anilox roller |
US6640705B1 (en) * | 1999-05-10 | 2003-11-04 | Man Roland Druckmaschinen Ag | Rotary printing machine with a plate cylinder, a transfer cylinder and an impression cylinder |
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