CA1049324A - Intaglio printing plates - Google Patents
Intaglio printing platesInfo
- Publication number
- CA1049324A CA1049324A CA216,792A CA216792A CA1049324A CA 1049324 A CA1049324 A CA 1049324A CA 216792 A CA216792 A CA 216792A CA 1049324 A CA1049324 A CA 1049324A
- Authority
- CA
- Canada
- Prior art keywords
- plate
- printed
- engraved
- image
- thickness
- 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.)
- Expired
Links
- 238000007639 printing Methods 0.000 title claims abstract description 23
- 239000012858 resilient material Substances 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 16
- 239000000565 sealant Substances 0.000 abstract description 2
- 239000003973 paint Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000012812 sealant material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/14—Sealings between relatively-stationary surfaces by means of granular or plastic material, or fluid
-
- 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
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
-
- 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
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/12—Printing plates or foils; Materials therefor non-metallic other than stone, e.g. printing plates or foils comprising inorganic materials in an organic matrix
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Or Reproduction Of Printing Formes (AREA)
- Printing Plates And Materials Therefor (AREA)
- Secondary Cells (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
This relates to an intaglio printing plate of the type in which the image to be printed is engraved into one surface of the plate and the ink, sealant or other material to be printed is fed into the engraved image through the thickness of the plate by means of holes passing through the plate. A unique feature of the plate is that at least a part of the engraved printing surface is formed of a thin facing layer of resilient material. This resilient facing layer can take up irregularities in the surface being printed.
This relates to an intaglio printing plate of the type in which the image to be printed is engraved into one surface of the plate and the ink, sealant or other material to be printed is fed into the engraved image through the thickness of the plate by means of holes passing through the plate. A unique feature of the plate is that at least a part of the engraved printing surface is formed of a thin facing layer of resilient material. This resilient facing layer can take up irregularities in the surface being printed.
Description
~493Z4 This invention relates to intaglio printing plates of the type in which the image to be printed is engraved into one surface of the plate and the ink, sealant or other material to be printed is fed into the engraved image through the thickness of the plate by means of communicating holes.
In the type of apparatus with which such plates may be used and which forms, for example, the subject of our applications Nos.
injector units are located between the engraved die plate and one of two cooperating press platens so that when the press platens are moved towards each other they effect the deposition of the material to be printed by contracting the injector units to pump the material into the recesses in the plate.
It has been found that when the material to be printed is of a hard, ungiving nature or there exist deviations from a plain mean surface within the area to be printed it is difficult to con-tain the substance being printed within the required bounds with a resultant lack of definition of the print.
For example if the plate is being used to print sealant material and/or adhesive onto a gasket the surface of the gasket may ~e irregular especially in the area surrounding a bore which may be faced with a metal ferrule which protrudes above the surface of the gasket. A method of accommodating both the surface irregularities and the variations in compressibility is therefore re~uired.
A further problem arises in printing incompressible metal surfaces having a degree of roughness. If the die is also incom-pressible it is difficult to get clean edges to the printed material.
These problems are substantially overcome by an intaglio printing plate of the type described in accordance with this inven-tion which has at least a portion of its engraved printing surface formed of a thin layer of resilient material. This surface can then take up the irregularities in the surface being printed : . .
The printing surface may be coated with for example rubber, plastic or any other material which has immunity to attack by the material to be printed and which is sufficiently resilient to con-tain the material to be printed within a sharp outline on the printed base. According to a feature of the invention the resilient material is present as an insert or inserts only at selected parts of the die surface.
Preferably the whole surface of, for example, a "Tufnol"*
or similar material base plate, is coated with a thin layer of resilient material which is vulcanised and then engraved with the desired image. Preferably the image is engra~ed only into the thickness of the resilient coating but it may also cut through into the base plate.
It has been found that a layer of synthetic rubber having a minimum thickness of 20/1000" is preferred but the thickness may be up to 40/1000", the thickness depending on the state of the surface to be printed.
It will be appreciated that the area of the engraved image will be reduced when pressure is applied to print due to the resilience of the surface coating. Thus the engraved image must be slightly larger in area than the desired print.
The in~ention will now be further described by way of example with reference to the accompanying drawings in which~
Fig. 1 is a schematic view of intaglio printing apparatus, Fig. 2 is a section through one part of an example of a die plate in accordance with the invention, and Fig. 3 is a view similar to Fig. 2 but showing a modified form of die plate.
Referring to Fig. 1, an intaglio plate or die 10 for print-ing a pattern is supported from an upper support plate 11mounted on an upper press platen 12. The press platen 12 co-operates with a lower press platen 14' onto which the sheet to be * Trademark 104~324 printed is placed. In the specification, the material to be printed will be described as a sheet of paper with the under-standing that the invention is applicable to any material to be printed with a design whether or not in sheet form or of paper.
For example it may be a gasket to be printed with a sealing compound.
In the apparatus of Figure 1, paint, sealing compound, or other printing fluid being printed, is injected through the printing plate 10 by a plurality of injector ~nits 15, three such lD units ~eing illustrated in the drawings for printing three different colours. The injector unit illustrated is particularly `
suitable for printing paint patches on a colour-card used to indicate the respective colours of specific paints. Each injector unit supplies printing fluid to one intaglio recess in the face of the plate.
~ he injector units 14 are each supplied from a corresponding printing fluid reservoir 15. Each injector unit 14 is connected to a corresponding one of the reservoirs 15 by a flexible conduit 16 which conducts printing fluid from the reservoir to the inlet of the injector. While the reservoirs 15 may be under pressure, preferably the feed from the reservoirs 15 is a gravity feed The injector units may comprise a piston which works as a pump so that when the platens 12 and 14' are moved together printing material in the injector is forced against and through the die plate 10.
Referring to ~igure 1, the printing plate 10 which is of a synthetic resin bonded board 17 is coated with a thin layer 18 of resilient material (the layer being shown much thicker relatively to the plate than it is in practice). An image shown at 20 is engraved into the resilient material and communicates with holes 22 which pass through the thickness of the plate and which in use 104~t324 are fed with the material to be pr nt~-d from the injector units 15. The image 20 is cut only into t~ resilient layer 18 and does not cut through the layer into the board.
When the plate is used to print uneven surfaces, the sur-face irregularities or ~ariations in compressibility of the material which is being printed, is compensated for by the resilience of the layer 18.
The plate illustrated in Fig. 3 differs from that of Fig.2 in that the engraved image or recess 20 is cut through the resilient layer 18 into the board 17.
It will be appreciated that two channels 22 are shown communicating with the recess. Either more or less channels (and injectors) may be used depending on the size and design of the recessed image. Equally if the plate has more than one recessed image then the other recesses are fed by additional injectors and these can be used to print different printing material through each recess if so desired.
In the type of apparatus with which such plates may be used and which forms, for example, the subject of our applications Nos.
injector units are located between the engraved die plate and one of two cooperating press platens so that when the press platens are moved towards each other they effect the deposition of the material to be printed by contracting the injector units to pump the material into the recesses in the plate.
It has been found that when the material to be printed is of a hard, ungiving nature or there exist deviations from a plain mean surface within the area to be printed it is difficult to con-tain the substance being printed within the required bounds with a resultant lack of definition of the print.
For example if the plate is being used to print sealant material and/or adhesive onto a gasket the surface of the gasket may ~e irregular especially in the area surrounding a bore which may be faced with a metal ferrule which protrudes above the surface of the gasket. A method of accommodating both the surface irregularities and the variations in compressibility is therefore re~uired.
A further problem arises in printing incompressible metal surfaces having a degree of roughness. If the die is also incom-pressible it is difficult to get clean edges to the printed material.
These problems are substantially overcome by an intaglio printing plate of the type described in accordance with this inven-tion which has at least a portion of its engraved printing surface formed of a thin layer of resilient material. This surface can then take up the irregularities in the surface being printed : . .
The printing surface may be coated with for example rubber, plastic or any other material which has immunity to attack by the material to be printed and which is sufficiently resilient to con-tain the material to be printed within a sharp outline on the printed base. According to a feature of the invention the resilient material is present as an insert or inserts only at selected parts of the die surface.
Preferably the whole surface of, for example, a "Tufnol"*
or similar material base plate, is coated with a thin layer of resilient material which is vulcanised and then engraved with the desired image. Preferably the image is engra~ed only into the thickness of the resilient coating but it may also cut through into the base plate.
It has been found that a layer of synthetic rubber having a minimum thickness of 20/1000" is preferred but the thickness may be up to 40/1000", the thickness depending on the state of the surface to be printed.
It will be appreciated that the area of the engraved image will be reduced when pressure is applied to print due to the resilience of the surface coating. Thus the engraved image must be slightly larger in area than the desired print.
The in~ention will now be further described by way of example with reference to the accompanying drawings in which~
Fig. 1 is a schematic view of intaglio printing apparatus, Fig. 2 is a section through one part of an example of a die plate in accordance with the invention, and Fig. 3 is a view similar to Fig. 2 but showing a modified form of die plate.
Referring to Fig. 1, an intaglio plate or die 10 for print-ing a pattern is supported from an upper support plate 11mounted on an upper press platen 12. The press platen 12 co-operates with a lower press platen 14' onto which the sheet to be * Trademark 104~324 printed is placed. In the specification, the material to be printed will be described as a sheet of paper with the under-standing that the invention is applicable to any material to be printed with a design whether or not in sheet form or of paper.
For example it may be a gasket to be printed with a sealing compound.
In the apparatus of Figure 1, paint, sealing compound, or other printing fluid being printed, is injected through the printing plate 10 by a plurality of injector ~nits 15, three such lD units ~eing illustrated in the drawings for printing three different colours. The injector unit illustrated is particularly `
suitable for printing paint patches on a colour-card used to indicate the respective colours of specific paints. Each injector unit supplies printing fluid to one intaglio recess in the face of the plate.
~ he injector units 14 are each supplied from a corresponding printing fluid reservoir 15. Each injector unit 14 is connected to a corresponding one of the reservoirs 15 by a flexible conduit 16 which conducts printing fluid from the reservoir to the inlet of the injector. While the reservoirs 15 may be under pressure, preferably the feed from the reservoirs 15 is a gravity feed The injector units may comprise a piston which works as a pump so that when the platens 12 and 14' are moved together printing material in the injector is forced against and through the die plate 10.
Referring to ~igure 1, the printing plate 10 which is of a synthetic resin bonded board 17 is coated with a thin layer 18 of resilient material (the layer being shown much thicker relatively to the plate than it is in practice). An image shown at 20 is engraved into the resilient material and communicates with holes 22 which pass through the thickness of the plate and which in use 104~t324 are fed with the material to be pr nt~-d from the injector units 15. The image 20 is cut only into t~ resilient layer 18 and does not cut through the layer into the board.
When the plate is used to print uneven surfaces, the sur-face irregularities or ~ariations in compressibility of the material which is being printed, is compensated for by the resilience of the layer 18.
The plate illustrated in Fig. 3 differs from that of Fig.2 in that the engraved image or recess 20 is cut through the resilient layer 18 into the board 17.
It will be appreciated that two channels 22 are shown communicating with the recess. Either more or less channels (and injectors) may be used depending on the size and design of the recessed image. Equally if the plate has more than one recessed image then the other recesses are fed by additional injectors and these can be used to print different printing material through each recess if so desired.
Claims (4)
1. An intaglio printing plate of the type in which the image to be printed is engraved into one surface of the plate and a fluid medium to be printed is fed into the engraved image through the thickness of the plate by means of holes passing through the plate characterized in that at least a part of the engraved printing surface is formed of a thin facing layer of resilient material, and in which the resilient layer is present as an insert or inserts, at selected parts of the engraved printing surface.
2. A plate as claimed in claim 1 in which the image to be printed is engraved only into the thickness of the resilient layer.
3. A plate as claimed in claim 1 in which the layer of resilient material has a thickness of between 20/1000" and 40/1000".
4. A plate as claimed in claim 1 in which the layer of resilient material has a thickness of between 20/1000" and 40/1000", the image to be printed being engraved only into the thickness of the resilient layer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1137/74A GB1488668A (en) | 1974-01-09 | 1974-01-09 | Intaglio printing plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1049324A true CA1049324A (en) | 1979-02-27 |
Family
ID=9716822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA216,792A Expired CA1049324A (en) | 1974-01-09 | 1974-12-24 | Intaglio printing plates |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5851839B2 (en) |
| BR (1) | BR7500095A (en) |
| CA (1) | CA1049324A (en) |
| CH (1) | CH587728A5 (en) |
| DE (1) | DE2500612A1 (en) |
| ES (1) | ES433672A1 (en) |
| FR (1) | FR2256839B1 (en) |
| GB (1) | GB1488668A (en) |
| NL (1) | NL7500049A (en) |
| NO (1) | NO137683C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5422208A (en) * | 1977-07-19 | 1979-02-20 | Toppan Printing Co Ltd | Method of photogravuring |
| US4566384A (en) * | 1983-01-18 | 1986-01-28 | Dainippon Screen Mfg. Co., Ltd. | Intaglio printing plate and printing method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE83168C (en) * | ||||
| DE1071722B (en) * | 1959-12-24 | |||
| GB527374A (en) * | 1939-04-06 | 1940-10-08 | Mccorquodale And Company Ltd | Applying pigments to sheet material |
| US2714267A (en) * | 1952-11-08 | 1955-08-02 | Innerfield Barry Gartner | Machine for applying liquid material |
| GB1031822A (en) * | 1962-05-10 | 1966-06-02 | Ici Ltd | Improvements in or relating to embossing surfaces |
-
1974
- 1974-01-09 GB GB1137/74A patent/GB1488668A/en not_active Expired
- 1974-12-24 CA CA216,792A patent/CA1049324A/en not_active Expired
- 1974-12-27 NO NO744707A patent/NO137683C/en unknown
-
1975
- 1975-01-03 NL NL7500049A patent/NL7500049A/en not_active Application Discontinuation
- 1975-01-07 CH CH9775A patent/CH587728A5/xx not_active IP Right Cessation
- 1975-01-07 BR BR95/75A patent/BR7500095A/en unknown
- 1975-01-07 FR FR7500295A patent/FR2256839B1/fr not_active Expired
- 1975-01-09 ES ES433672A patent/ES433672A1/en not_active Expired
- 1975-01-09 DE DE19752500612 patent/DE2500612A1/en not_active Withdrawn
- 1975-01-09 JP JP50005254A patent/JPS5851839B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NO137683B (en) | 1977-12-27 |
| JPS50101102A (en) | 1975-08-11 |
| FR2256839A1 (en) | 1975-08-01 |
| GB1488668A (en) | 1977-10-12 |
| ES433672A1 (en) | 1976-11-16 |
| JPS5851839B2 (en) | 1983-11-18 |
| NO137683C (en) | 1978-04-05 |
| FR2256839B1 (en) | 1978-02-24 |
| NO744707L (en) | 1975-08-04 |
| BR7500095A (en) | 1975-11-04 |
| DE2500612A1 (en) | 1975-07-10 |
| CH587728A5 (en) | 1977-05-13 |
| AU7697574A (en) | 1976-07-01 |
| NL7500049A (en) | 1975-07-11 |
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