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US 6,555,205 B2Granted
Printing plate and method to prepare a printing plate
AssigneeKodak Polychrome Graphics LLC
InventorsAlexander Grant, Patrice M. Aurenty, Edward Stone, Mark J. Lindsey
Life of this patent
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Abstract
A printing plate is prepared by the process comprising: (a) providing a substrate; and (b) applying by ink jetting to the substrate a fluid composition comprising a cationic polymer and an anionic polymer, in non-aqueous solvent. The ionic polymers interact and adhere to the substrate, so that after drying a durable printing plate is formed, without chemical development. The printing plate of this invention is capable of extended press run length and advantageously avoids the need of chemical development.
Claims30
A fluid composition suitable for ink jetting upon a substrate, comprising:
- (a) a basic polymeric compound which is at least partially neutralized with acid to produce a cationic polymeric compound;
- (b) an acidic polymeric compound which is at least partially neutralized with base to produce an anionic polymeric compound;
- and
- (c) non-aqueous solvent which comprises in the range of about 84% to 99.8% by weight of the fluid composition.
1 more element
A fluid composition suitable for ink jetting upon a substrate prepared by the process comprising:
- (a) providing a basic polymeric compound;
- (b) neutralizing the basic polymeric compound at least partially with acid to produce a cationic polymeric compound;
- (c) providing an acidic polymeric compound;
- (d) neutralizing the acidic polymeric compound at least partially with base to produce an anionic polymeric compound;
- and
- (e) dissolving the at least partially neutralized basic polymeric compound and the at least partially neutralized acidic polymeric compound in non-aqueous solvent which comprises in the range of about 84% to 99.8% by weight of the fluid composition.
3 more elements
A printing plate prepared by the process comprising:
- (a) providing a substrate;
- and
- (b) applying by ink jetting to the substrate a fluid composition comprising:
- (i) a basic polymeric compound which is at least partially neutralized with acid to produce a cationic polymeric compound;
- (ii) an acidic polymeric compound which is at least partially neutralized with base to produce an anionic polymeric compound;
- and
- (iii) non-aqueous solvent which comprises in the range of about 50% to 99.8% by weight of the fluid composition,
- wherein the substrate is pretreated to form a printing plate precursor with a surfactant selected from the group consisting of alkyl tail surfactants, fluorosurfactants and siliconated surfactant.
5 more elements
A printing plate comprising:
- (a) a substrate;
- and
- (b) a fluid composition applied by ink jetting to the substrate, comprising:
- (i) a basic polymeric compound which is at least partially neutralized with acid to produce a cationic polymeric compound;
- (ii) an acidic polymeric compound which is at least partially neutralized with base to produce an anionic polymeric compound;
- and
- (iii) non-aqueous solvent which comprises in the range of about 50% to 99.8% by weight of the fluid composition,
- wherein the substrate is pretreated to form a printing plate precursor with a surfactant selected from the group consisting of alkyl tail surfactants, fluorosurfactants and siliconated surfactants.
5 more elements
A method of preparing a printing plate comprising:
- (a) providing a substrate;
- and
- (b) applying by ink jetting to the substrate a fluid composition comprising:
- (i) a basic polymeric compound which is at least partially neutralized with acid to produce a cationic polymeric compound;
- (ii) an acidic polymeric compound which is at least partially neutralized with base to produce an anionic polymeric compound;
- and
- (iii) non-aqueous solvent which comprises in the range of about 50% to 99.8% by weight of the fluid composition,
- wherein the substrate is pretreated to form a printing plate precursor with a surfactant selected from the group consisting of alkyl tail surfactants, fluorosurfactants and siliconated surfactants.
5 more elements
A method of forming an image onto a substrate comprising:
- (a) providing a substrate;
- and
- (b) applying by ink jetting to the substrate a fluid composition comprising:
- (i) a basic polymeric compound which is at least partially neutralized with acid to produce a cationic polymeric compound;
- (ii) an acidic polymeric compound which is at least partially neutralized with base to produce an anionic polymeric compound;
- and
- (iii) non-aqueous solvent which comprises in the range of about 50% to 99.8% by weight of the fluid composition;
- in which the fluid composition forms the image;
- and
- (c) drying the fluid composition on the substrate,
- wherein the substrate is pretreated to form a printing plate precursor with a surfactant selected from the group consisting of alkyl tail surfactants, fluorosurfactants and siliconated surfactants.
8 more elements
An imaged substrate comprising:
- (a) a substrate;
- and
- (b) a fluid composition applied to the substrate, comprising:
- (i) a basic polymeric compound which is at least partially neutralized with acid to produce a cationic polymeric compound;
- (ii) an acidic polymeric compound which is at least partially neutralized with base to produce an anionic polymeric compound;
- and
- (iii) non-aqueous solvent which comprises in the range of about 50% to 99.8% by weight of the fluid composition,
- wherein the substrate is pretreated to form a printing plate precursor with a surfactant selected from the group consisting of alkyl tail surfactants, fluorosurfactants and siliconated surfactants.
5 more elements
A method of copying an image onto a medium comprising:
- (a) providing a substrate;
- and
- (b) applying by ink jetting to the substrate a fluid composition comprising:
- (i) a basic polymeric compound which is at least partially neutralized with acid to produce a cationic polymeric compound;
- (ii) an acidic polymeric compound which is at least partially neutralized with base to produce an anionic polymeric compound;
- and
- (iii) non-aqueous solvent which comprises in the range of about 50% to 99.8% by weight of the fluid composition;
- in which the fluid composition forms the image;
- (c) drying the fluid composition on the substrate;
- (d) contacting the dried formed image with an ink thereby coating the formed image with the ink;
- and
- (e) contacting the formed image coated with the ink with a medium capable of receiving the ink in the form of the image,
- wherein the substrate is pretreated to form a printing plate precursor with a surfactant selected from the group consisting of alkyl tail surfactants, fluorosurfactants and siliconated surfactants.
10 more elements
Dependencies are inferred from the claim text.