DE29824516U1 - Heat sensitive imaging element for the production of positive working printing plates - Google Patents

Heat sensitive imaging element for the production of positive working printing plates

Info

Publication number
DE29824516U1
DE29824516U1 DE29824516U DE29824516U DE29824516U1 DE 29824516 U1 DE29824516 U1 DE 29824516U1 DE 29824516 U DE29824516 U DE 29824516U DE 29824516 U DE29824516 U DE 29824516U DE 29824516 U1 DE29824516 U1 DE 29824516U1
Authority
DE
Germany
Prior art keywords
imaging element
sensitive
heat
alkaline solution
aqueous alkaline
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 - Lifetime
Application number
DE29824516U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Agfa Gevaert NV
Original Assignee
Agfa Gevaert NV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26150052&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE29824516(U1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Agfa Gevaert NV filed Critical Agfa Gevaert NV
Priority claimed from EP98200496A external-priority patent/EP0864420B2/en
Publication of DE29824516U1 publication Critical patent/DE29824516U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1008—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials
    • B41C1/1016—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials characterised by structural details, e.g. protective layers, backcoat layers or several imaging layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2201/00—Location, type or constituents of the non-imaging layers in lithographic printing formes
    • B41C2201/04—Intermediate layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/02—Positive working, i.e. the exposed (imaged) areas are removed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/06—Developable by an alkaline solution
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/14—Multiple imaging layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/24—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation characterised by a macromolecular compound or binder obtained by reactions involving carbon-to-carbon unsaturated bonds, e.g. acrylics, vinyl polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C2210/00—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
    • B41C2210/26—Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation characterised by a macromolecular compound or binder obtained by reactions not involving carbon-to-carbon unsaturated bonds
    • B41C2210/262—Phenolic condensation polymers, e.g. novolacs, resols

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Materials For Photolithography (AREA)

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (12)

1. Wärmeempfindliches Bilderzeugungselement zur Herstellung einer lithographischen Druckplatte
  • a) mit einem lithographischen Träger mit einer hydrophilen Oberflä­ che,
  • b) mit einer auf dem Träger angeordneten hydrophoben Schicht,
    • 1. die gegenüber sichtbarem Licht oder UV-Licht unempfindlich ist und
    • 2. ein in wäßrig-alkalischer Lösung lösliches Polymer enthält, und
  • c) mit einer gegenüber IR-Strahlung empfindlichen Deckschicht da­ durch gekennzeichnet, daß
  • d) die Durchdringbarkeit und/oder Solubilisierbarkeit der Deck­ schicht in wäßrig-alkalischer Lösung mit einem pH-Wert zwi­ schen 7,5 und 14 bei IR-Laserbelichtung zunimmt oder abnimmt.
1. Heat-sensitive imaging element for producing a lithographic printing plate
  • a) with a lithographic base with a hydrophilic surface,
  • b) with a hydrophobic layer arranged on the support,
    • 1. which is insensitive to visible light or UV light and
    • 2. contains a polymer soluble in aqueous alkaline solution, and
  • c) with a top layer sensitive to IR radiation, characterized in that
  • d) the penetrability and / or solubilizability of the cover layer in aqueous alkaline solution with a pH between 7.5 and 14 increases or decreases with IR laser exposure.
2. Wärmeempfindliches Bilderzeugungselement nach Anspruch 1, bei dem die Durchdringbarkeit und/oder Solubilisierbarkeit der Deck­ schicht bei bildmäßiger Laserbelichtung zunimmt und diese Zunahme zu einer Entfernung der laserbebilderten Teile führt, ohne die nicht be­ bilderten Teile beim Entwickeln des laserbebilderten Bilderzeugung­ selements mit wäßrig-alkalischer Lösung zu solubilisieren und/oder zu beschädigen.2. A heat sensitive imaging element according to claim 1, in the penetrability and / or solubilizability of the deck layer increases with imagewise laser exposure and this increase leads to a removal of the laser-imaged parts, without which not be imaged parts when developing laser imaged imaging elements to solubilize with aqueous alkaline solution and / or to damage. 3. Wärmeempfindliches Bilderzeugungselement nach Anspruch 1 oder 2, bei dem die Durchdringbarkeit und/oder Solubilisierbarkeit der Deck­ schicht bei bildmäßiger Belichtung abnimmt und diese Abnahme zu einer Entfernung der nicht bebilderten Teile führt, ohne die laserbebil­ derten Teile beim Entwickeln des laserbelichteten Bilderzeugungsele­ ments mit wäßrig-alkalischer Lösung zu solubilisieren und/oder zu be­ schädigen.3. A heat-sensitive imaging element according to claim 1 or 2, where the penetrability and / or solubilizability of the deck layer decreases with imagewise exposure and this decrease to a  Removal of the unimaged parts leads without the laserbebil parts when developing the laser-exposed imaging element to solubilize and / or be with aqueous alkaline solution damage. 4. Wärmeempfindliches Bilderzeugungselement nach einem der Ansprü­ che 1 bis 3, bei dem es sich bei der ein in wäßrig-alkalischer Lösung lösliches Polymer enthaltenden hydroproben Schicht um eine thermisch härtbare Schicht handelt.4. Heat-sensitive imaging element according to one of the claims che 1 to 3, which is the one in aqueous alkaline solution hydro-soluble layer containing soluble polymer around a thermal curable layer. 5. Wärmeempfindliches Bilderzeugungselement nach einem der Ansprü­ che 1 bis 4, bei dem die ein in wäßrig-alkalischer Lösung lösliches Po­ lymer enthaltende hydrophobe Schicht ein hydrophobes Bindemittel enthält.5. Heat-sensitive imaging element according to one of the claims che 1 to 4, in which the Po soluble in aqueous alkaline solution hydrophobic layer containing lymer a hydrophobic binder contains. 6. Wärmeempfindliches Bilderzeugungselement nach Anspruch 5, bei dem das hydrophobe Bindemittel durch Unlöslichkeit in Wasser und
  • a) partielle Löslichkeit oder Quellbarkeit in wäßrig-alkalischer Lösung und/oder
  • b) partielle Löslichkeit in Wasser bei Kombination mit einem Cosol­ vens gekennzeichnet ist.
6. A heat-sensitive imaging member according to claim 5, wherein the hydrophobic binder is insoluble in water and
  • a) partial solubility or swellability in aqueous alkaline solution and / or
  • b) partial solubility in water is characterized in combination with a Cosol vens.
7. Wärmeempfindliches Bilderzeugungselement nach Anspruch 5 oder 6, bei dem das hydrophobe Bindemittel aus der Gruppe bestehend aus Novolaken, Polyvinylphenolen und carboxylsubstituierten Polymeren ausgewählt ist. 7. A heat-sensitive imaging element according to claim 5 or 6, in which the hydrophobic binder from the group consisting of Novolaks, polyvinylphenols and carboxyl-substituted polymers is selected.   8. Wärmeempfindliches Bilderzeugungselement nach einem der Ansprü­ che 1 bis 7, bei dem die IR-empfindliche Deckschicht Nitrocellulose oder ein Silikonharz enthält.8. Heat-sensitive imaging element according to one of the claims che 1 to 7, in which the IR-sensitive top layer nitrocellulose or contains a silicone resin. 9. Wärmeempfindliches Bilderzeugungselement nach einem der Ansprü­ che 1 bis 8, bei dem die IR-empfindliche Deckschicht eine lichtabsor­ bierende Verbindung enthält, die gegenüber:
  • - Nah-IR-Strahlung und
  • - sichtbarer Strahlung und/oder UV-Strahlung empfindlich ist.
9. Heat-sensitive imaging element according to one of claims 1 to 8, in which the IR-sensitive top layer contains a light-absorbing compound which is:
  • - Near-IR radiation and
  • - Visible radiation and / or UV radiation is sensitive.
10. Positiv arbeitendes wärmeempfindliches Bilderzeugungselement zur Herstellung einer lithographischen Druckplatte
  • a) mit einem lithographischen Träger mit einer hydrophilen Oberflä­ che,
  • b) mit einer auf dem Träger angeordneten hydrophoben Schicht,
    • 1. die kein o-Chinondiazid enthält und
    • 2. ein in wäßrig-alkalischer Lösung lösliches Polymer enthält, und
  • c) mit einer nicht ablativen gegenüber IR-Strahlung empfindlichen Deckschicht dadurch gekennzeichnet, daß
  • d) die Durchdringbarkeit und/oder Solubilisierbarkeit der Deck­ schicht in wäßrig-alkalischer Lösung mit einem pH-Wert zwi­ schen 7,5 und 14 bei IR-Laserbelichtung zunimmt.
10. Positive working heat-sensitive imaging element for producing a lithographic printing plate
  • a) with a lithographic base with a hydrophilic surface,
  • b) with a hydrophobic layer arranged on the support,
    • 1. which contains no o-quinonediazide and
    • 2. contains a polymer soluble in aqueous alkaline solution, and
  • c) with a non-ablative cover layer sensitive to IR radiation, characterized in that
  • d) the penetrability and / or solubilizability of the cover layer in aqueous alkaline solution with a pH between 7.5 and 14 increases with IR laser exposure.
11. Bilderzeugungselement nach Anspruch 10, bei dem das in wäß­ rig-alkalischer Lösung lösliche Polymer aus der Gruppe bestehend aus Novolaken, Polyvinylphenolen und carboxylsubstituierten Polymeren ausgewählt ist. 11. The imaging element of claim 10, wherein the in aq Rig-alkaline solution soluble polymer from the group consisting of Novolaks, polyvinylphenols and carboxyl-substituted polymers is selected.   12. Bilderzeugungselement nach Anspruch 10 oder 11, bei dem die IR-empfindliche Deckschicht Nitrocellulose oder ein Silikonharz ent­ hält.12. The imaging element of claim 10 or 11, wherein the IR-sensitive top layer nitrocellulose or a silicone resin ent holds.
DE29824516U 1997-03-11 1998-02-17 Heat sensitive imaging element for the production of positive working printing plates Expired - Lifetime DE29824516U1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US4040897P 1997-03-11 1997-03-11
EP98200496A EP0864420B2 (en) 1997-03-11 1998-02-17 Heat-sensitive imaging element for making positive working printing plates

Publications (1)

Publication Number Publication Date
DE29824516U1 true DE29824516U1 (en) 2001-04-26

Family

ID=26150052

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29824516U Expired - Lifetime DE29824516U1 (en) 1997-03-11 1998-02-17 Heat sensitive imaging element for the production of positive working printing plates

Country Status (2)

Country Link
EP (1) EP1110720B1 (en)
DE (1) DE29824516U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8409785B2 (en) * 2003-07-17 2013-04-02 Kodak Graphic Communications Gmbh Apparatus and method for treating imaging materials

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2171472C (en) * 1994-07-11 2002-02-26 Katsuyuki Takeda Presensitized lithographic printing plate and method for preparing lithographic printing plate

Also Published As

Publication number Publication date
EP1110720A3 (en) 2001-07-11
EP1110720A2 (en) 2001-06-27
EP1110720B1 (en) 2005-12-28

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20010531

R150 Term of protection extended to 6 years

Effective date: 20010619

R165 Request for cancellation or ruling filed
R173 Request for cancellation of utility model withdrawn
R151 Term of protection extended to 8 years

Effective date: 20040401

R152 Term of protection extended to 10 years

Effective date: 20060216

R071 Expiry of right