EP0377589A1 - Herstellungsverfahren für vorsensibilisierte lithographische druckplatten - Google Patents
Herstellungsverfahren für vorsensibilisierte lithographische druckplattenInfo
- Publication number
- EP0377589A1 EP0377589A1 EP88906853A EP88906853A EP0377589A1 EP 0377589 A1 EP0377589 A1 EP 0377589A1 EP 88906853 A EP88906853 A EP 88906853A EP 88906853 A EP88906853 A EP 88906853A EP 0377589 A1 EP0377589 A1 EP 0377589A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- photo
- lithographic printing
- printing plate
- range
- coating
- 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- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 239000000758 substrate Substances 0.000 claims abstract description 22
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 238000000576 coating method Methods 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 13
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 10
- 238000007743 anodising Methods 0.000 claims abstract description 10
- 229920000642 polymer Polymers 0.000 claims abstract description 8
- 125000000524 functional group Chemical group 0.000 claims abstract description 5
- 235000011007 phosphoric acid Nutrition 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 10
- 235000011149 sulphuric acid Nutrition 0.000 claims description 10
- 239000001117 sulphuric acid Substances 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 5
- 239000007800 oxidant agent Substances 0.000 claims description 5
- 231100000489 sensitizer Toxicity 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- 239000000975 dye Substances 0.000 claims description 4
- 125000005395 methacrylic acid group Chemical group 0.000 claims description 4
- 239000008199 coating composition Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- ZTWMBHJPUJJJME-UHFFFAOYSA-N 3,4-dimethylpyrrole-2,5-dione Chemical compound CC1=C(C)C(=O)NC1=O ZTWMBHJPUJJJME-UHFFFAOYSA-N 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000002947 alkylene group Chemical group 0.000 claims description 2
- 150000004770 chalcogenides Chemical group 0.000 claims description 2
- 125000005702 oxyalkylene group Chemical group 0.000 claims description 2
- 150000003016 phosphoric acids Chemical class 0.000 claims description 2
- 229920000058 polyacrylate Polymers 0.000 claims description 2
- 150000003918 triazines Chemical class 0.000 claims description 2
- 230000035945 sensitivity Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 206010034960 Photophobia Diseases 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 208000013469 light sensitivity Diseases 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 2
- CDSULTPOCMWJCM-UHFFFAOYSA-N 4h-chromene-2,3-dione Chemical compound C1=CC=C2OC(=O)C(=O)CC2=C1 CDSULTPOCMWJCM-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 238000010306 acid treatment Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- -1 dimethylmaleimidyl groups Chemical group 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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
- B41N3/00—Preparing for use and conserving printing surfaces
- B41N3/03—Chemical or electrical pretreatment
- B41N3/034—Chemical or electrical pretreatment characterised by the electrochemical treatment of the aluminum support, e.g. anodisation, electro-graining; Sealing of the anodised layer; Treatment of the anodic layer with inorganic compounds; Colouring of the anodic layer
Definitions
- This invention relates to the production of a pre- sensitized lithographic printing plate.
- the present invention has-been developed primarily, though not exclusively, with a view to providing an improved coating composition, and an improved anodising treatment of the web, so as to achieve production of a pre- sensitized lithographic printing plate having improved performance.
- aluminium substrate is intended to include aluminium and aluminium alloy substrates of the type suitable for use in the production of lithographic printing plates.
- the present invention provides a method for producing a lithographic printing plate which comprises a light sensitive coating applied to an aluminium substrate, in which the method includes an anodising step in which the aluminium substrate is anodised using phosphoric acid present in a range from 100% to 30% by and sulphuric acid present in a range from 0% to 70% by volume of the same normality, and a coating step in which the anodised aluminium substrate is coated with a resin which comprises a photo crosslinkable polymer having a maleimidic functional group plus a sensitiser.
- the mixed acid medium comprises a mixture of sulphuric and phosphoric acids in a total acid concentration from IN to 20N.
- the ratio of sulphuric acid to phosphoric acid is in the range from 30/70 V/V to 50/50 V/V and more preferably is about 40/60 V/V respectively.
- the preferred total acid concentration is in the range from 3N to 9N.
- the photo crosslinkable polymer is an acrylic polymer.
- the crosslinkable groups are dimethylmaleimidyl groups.
- R may be, for instance, alkylene or oxyalkylene.
- R examples of R are ( CH2 ) 2> ( CH2 ) 2 ⁇ 0- ( CH2 ) 2 anc * (CH2)g. the latter being particularly preferred-.
- a photo-oxidiser which may be used in connection with the present invention is a triazine derivative, for instance, one containing a chalcogenide substituent.
- Examples of such ' photo-oxidisers are described in pending British patent application No 8627059. They have the general formula wherein R is an alkyl group or an aryl group, X is S, Se or Te, n and m are 0, or each is an integer of from 1 to 3, the total sum of n + m not being greater than 3 and p and q are 0, or each is an integer of from 1 to 3, the total sum of p + q not being greater than 3.
- results were assessed using a stouffer grey scale to determine sensitivity, and in which S apparently represents the highest fully cured step on the wedge, and C apparently represents the lowest totally uncured step on the wedge.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Materials For Photolithography (AREA)
- Printing Plates And Materials Therefor (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB878720424A GB8720424D0 (en) | 1987-08-28 | 1987-08-28 | Pre-sensitized lithographic printing plate production |
| GB8720424 | 1987-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0377589A1 true EP0377589A1 (de) | 1990-07-18 |
Family
ID=10623022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88906853A Withdrawn EP0377589A1 (de) | 1987-08-28 | 1988-08-05 | Herstellungsverfahren für vorsensibilisierte lithographische druckplatten |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0377589A1 (de) |
| AU (1) | AU2132488A (de) |
| ES (1) | ES2011850A6 (de) |
| GB (1) | GB8720424D0 (de) |
| NZ (1) | NZ225783A (de) |
| WO (1) | WO1989001871A1 (de) |
| ZA (1) | ZA885908B (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6418850B2 (en) | 1999-08-17 | 2002-07-16 | Kodak Polychrome Graphics Llc | Hydrophilized substrate for planographic printing |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0862518B2 (de) * | 1995-11-24 | 2006-05-17 | Kodak Polychrome Graphics Company Ltd. | Hydrophilierter träger für flachdruckplatte und verfahren zu seiner herstellung |
| GB9624224D0 (en) | 1996-11-21 | 1997-01-08 | Horsell Graphic Ind Ltd | Planographic printing |
| GB9702568D0 (en) * | 1997-02-07 | 1997-03-26 | Horsell Graphic Ind Ltd | Planographic printing |
| GB9710552D0 (en) | 1997-05-23 | 1997-07-16 | Horsell Graphic Ind Ltd | Planographic printing |
| US6357351B1 (en) | 1997-05-23 | 2002-03-19 | Kodak Polychrome Graphics Llc | Substrate for planographic printing |
| DE19847616C2 (de) * | 1998-10-15 | 2001-05-10 | Kodak Polychrome Graphics Gmbh | Polyvinylacetale mit Imidogruppen sowie die Verwendung derselben in lichtempfindlichen Zusammensetzungen |
| US6270938B1 (en) | 2000-06-09 | 2001-08-07 | Kodak Polychrome Graphics Llc | Acetal copolymers and use thereof in photosensitive compositions |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3511661A (en) * | 1966-07-01 | 1970-05-12 | Eastman Kodak Co | Lithographic printing plate |
| US4049504A (en) * | 1976-02-23 | 1977-09-20 | Polychrome Corporation | Method of producing lithographic printing plates |
| DE2836803A1 (de) * | 1978-08-23 | 1980-03-06 | Hoechst Ag | Verfahren zur anodischen oxidation von aluminium und dessen verwendung als druckplatten-traegermaterial |
| GB2088901B (en) * | 1980-10-23 | 1983-12-07 | Vickers Ltd | Anodised aluminium sheet for lithographic printing plate production |
| JPH0767868B2 (ja) * | 1984-10-23 | 1995-07-26 | 三菱化学株式会社 | 感光性平版印刷版 |
| JPS6278544A (ja) * | 1985-10-01 | 1987-04-10 | Fuji Photo Film Co Ltd | 感光性組成物 |
-
1987
- 1987-08-28 GB GB878720424A patent/GB8720424D0/en active Pending
-
1988
- 1988-08-05 EP EP88906853A patent/EP0377589A1/de not_active Withdrawn
- 1988-08-05 AU AU21324/88A patent/AU2132488A/en not_active Abandoned
- 1988-08-05 WO PCT/GB1988/000645 patent/WO1989001871A1/en not_active Ceased
- 1988-08-11 ZA ZA885908A patent/ZA885908B/xx unknown
- 1988-08-11 NZ NZ225783A patent/NZ225783A/en unknown
- 1988-08-26 ES ES8802650A patent/ES2011850A6/es not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO8901871A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6418850B2 (en) | 1999-08-17 | 2002-07-16 | Kodak Polychrome Graphics Llc | Hydrophilized substrate for planographic printing |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA885908B (en) | 1989-04-26 |
| GB8720424D0 (en) | 1987-10-07 |
| NZ225783A (en) | 1990-04-26 |
| WO1989001871A1 (en) | 1989-03-09 |
| ES2011850A6 (es) | 1990-02-16 |
| AU2132488A (en) | 1989-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19900219 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT NL |
|
| 17Q | First examination report despatched |
Effective date: 19920602 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: HORSELL PLC |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19921215 |