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Print method for lithographic plate and lithographic plate treated by said method

A lithographic printing plate and printing method technology, applied in the preparation of printing surface, printing, printing process, etc., can solve the problems that lithographic printing plates cannot be obtained in the form of products, waste of lithographic printing plate materials, and waste of time

Inactive Publication Date: 2004-10-06
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before or after a conversion operation, some lithographic printing plates may become unavailable in product form, resulting in waste of lithographic printing plate material
In addition, during changeover operations, the lithographic printing plates cannot be processed during this period because the processing line must be stopped, thus wasting time

Method used

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Examples

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Embodiment Construction

[0015] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0016] A detailed description of the embodiments of the present invention will be given below.

[0017] The lithographic printing plate used in the present invention is not particularly limited, and lithographic printing plates used before can be suitably used in the present invention.

[0018] A lithographic printing plate has a thin aluminum support in the shape of a rectangular plate and a coating film is coated on this support (a photosensitive printing plate is coated with a photosensitive layer, a thermal printing plate is coated with a heat sensitive layer, and if necessary , sometimes with a clear or matte coating). Plate-making processing such as exposure processing, developing processing, and sizing processing is performed on this coating film. The lithographic printing plate thus obtained is set in a printing press, ink is applied thereon, and letters and images are printed on the paper surface. The lithog...

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PUM

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Abstract

The present invention provides a method for printing, comprising the steps of: a) developing an image forming surface of a planographic printing plate; b) after the developing, hydrophilizing a portion of a vicinity of an edge of the image forming surface; c) after the hydrophilizing, adhering ink to the image forming surface; and d) transferring the ink to a printing target.

Description

field of invention [0001] The present invention relates to a printing method comprising the steps of developing a lithographic printing plate, attaching ink to the lithographic printing plate, and transferring the ink to an object to be printed, and relates to the process of printing by this printing method. Lithographic edition. Background technique [0002] In recent plate-making methods (including electrophotographic plate-making methods), planographic printing plates such as photosensitive printing plates and thermosensitive printing plates are widely used in order to facilitate the automation of the plate-making process. Generally, lithographic printing plates are surface-treated with graining treatment, anodizing treatment, silicate treatment and chemical processing treatment alone or in appropriate combination on a support such as a sheet-like or roll-like aluminum plate. This surface-treated support is then coated with a photosensitive layer or a heat-sensitive laye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/40B41C1/10B41N1/14B41N3/08G03F7/00
CPCB41N3/08B41C1/10
Inventor 碓井孝之
Owner FUJIFILM CORP