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Multilayer imageable element containing epoxy resin

A technology for imaging components and components, which is applied in the application of radiation from radioactive sources, thermography, lithography equipment, etc., and can solve problems such as deterioration of properties

Inactive Publication Date: 2008-10-29
EASTMAN KODAK CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In many cases, methods that provide one of these properties degrade the other

Method used

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  • Multilayer imageable element containing epoxy resin
  • Multilayer imageable element containing epoxy resin
  • Multilayer imageable element containing epoxy resin

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preparation example Construction

Embodiment 1-6

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Abstract

A positive-working imageable element comprises inner and outer layers and a radiation absorbing compound such as an IR absorbing dye. The inner layer includes a polymeric material that is removable using an alkaline developer. An ink receptive outer layer is not removable using an alkaline developer before its exposure to imaging radiation. The outer layer includes a polymer binder having pendant epoxy groups that are substantially unreacted during exposure.

Description

field of invention The present invention relates to positive-working imageable elements with improved shelf life that can be used to form positive-working lithographic printing plates with improved image resolution. It also relates to methods of forming imaged elements from such imageable elements using thermal imaging. Background of the invention In conventional or "wet" lithography, ink-receptive areas called image areas are created on a hydrophilic surface. When the surface is wetted with water and ink is applied, the hydrophilic regions retain the water and repel the ink, and the ink-receptive regions accept the ink and repel the water. The ink is transferred to the surface of the material on which the image is to be reproduced. For example, the ink may first be transferred to an intermediate layer, which is then used to transfer the ink to the surface of the material on which the image is to be reproduced. Imageable elements useful in preparing lithographic printing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41C1/10B41M5/36
CPCY10S430/106Y10S430/111B41M5/368B41C1/1016Y10S430/165B41C2210/02B41C2210/06B41C2210/14B41C2210/22B41C2210/24B41C2210/262
Inventor J·黄S·萨赖亚K·B·雷A·P·基特森E·L·谢里夫A·克雷布斯
Owner EASTMAN KODAK CO