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US 2003/0148227 A1Published application
Water-developable negative-working ultraviolet and infrared imageable element
AssigneeKodak Polychrome Graphics LLC
InventorsKevin Ray, Paul Kitson
Life of this patent
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Abstract
Negative-working, water-developable imageable elements, useful as printing plate precursors, and methods for their use, are disclosed. The elements can be imaged with ultraviolet radiation, with infrared radiation, or with heat. The elements contain an imageable composition that contains a latent Brönsted acid, a water-soluble or water-dispersible binder, and an acid-activated cross-linking agent.
Claims28
A method for forming an image, the method comprising the steps of:
- (a) imaging an imageable element and forming an imaged imageable element, the imaged imageable element comprising imaged regions and unimaged regions in an imageable layer;
- in which:
- the imageable element is imaged either with ultraviolet radiation, with infrared radiation, or with heat,
- the imageable element comprises:
- a substrate comprising a hydrophilic surface, and
- the imageable layer over the hydrophilic surface, and
- the imageable layer comprises an imageable composition that comprises:
- a latent Brönsted acid,
- a water-soluble or water-dispersible binder, and
- an acid-activated cross-linking agent;
- (b) heating the imaged imageable element;
- and
- (c) developing the imaged imageable element with water and removing the unimaged regions.
10 more elements
An image formed by a method comprising the steps of:
- (a) imaging an imageable element and forming an imaged imageable element, the imaged imageable element comprising imaged regions and unimaged regions in an imageable layer;
- in which:
- the imageable element is imaged either with ultraviolet radiation, with infrared radiation, or with heat,
- the imageable element comprises:
- a substrate comprising a hydrophilic surface, and
- the imageable layer over the hydrophilic surface, and
- the imageable layer comprises an imageable composition that comprises:
- a latent Brönsted acid,
- a water-soluble or water-dispersible binder, and
- an acid-activated cross-linking agent;
- (b) heating the imaged imageable element;
- and
- (c) developing the imaged imageable element with water and removing the unimaged regions.
10 more elements
An imageable element comprising:
- a substrate comprising a hydrophilic surface, and
- the imageable layer over the hydrophilic surface,
- in which the imageable layer comprises an imageable composition that comprises a latent Brönsted acid, a water-soluble or water-dispersible binder, and an acid-activated cross-linking agent.
Dependencies are inferred from the claim text.