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Heat stability processing method for 830-nanometer infrared photosensitive heat-sensitive CTP (computer to plate)

A processing method and heat stabilization technology, which is applied in the field of heat stabilization treatment of thermal CTP plates, can solve the problems that it can only be used for screen printing and cannot be used well, and achieve accurate restoration, good photosensitive latitude and development The effect of tolerance and good storage preservation

Active Publication Date: 2012-07-18
HUANGSHAN YINJIANG TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method that generally adopts is to add photosensitizer in the making process of photosensitive film (being photosensitive resin), discloses a kind of method in diazo photosensitive adhesive thermal stability as domestic patent CN101813888A and domestic patent CN101813887A, yet this method needs to add at first Appropriate photosensitizers can be realized. Secondly, this thermal stabilization method can only be used for screen printing, and cannot be used well for thermal CTP plates.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Carry out thermal stabilization treatment to above-mentioned CT-100 type thermosensitive CTP plate, the size of plate is: 1030mm * 800 * 0.27mm (length * width * thickness), the quantity of plate is 5000, and the total quality that needs to handle is Z= 103cm×80cm×0.027cm*5000×2.8 (specific gravity of aluminum) / 1000=3115Kg.

[0020] Set the number of thermal stabilization stages to 5, T (0) =22°C, end point temperature T (5) =60°C

[0021] Set the temperature rise range and constant temperature time of each stage as: T (1) =8°C, S (1) = 120 minutes; T (2) =10°C, S (2) = 180 minutes; T (3) =10°C, S (3) = 180 minutes; T (4) =5°C, S (4) = 180 minutes; T (5) =5°C, S (5) = 300 minutes.

[0022] Then, according to the above conditions, perform heat stabilization treatment on the heat-sensitive CTP plate that needs to be processed.

[0023] After heat stabilization treatment, under the condition of exposure amount 300 / 900 and developing temperature: 23℃, the heat-...

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Abstract

The invention relates to the technical field of the manufacturing and the heat processing of a heat-sensitive CTP (computer to plate) for planographic printing, in particular to a heat stability processing method for the heat-sensitive CTP. The heat stability processing method comprises a heat-sensitive CTP heat stability processor device; the divided and cut heat-sensitive CTP is placed in a heat stability processing device to carry out heat stability processing; a heat stabilization step is divided into 3-8 stages; the temperature rise range of each stage is controlled between 1 DEG C and 60 DEG C; a constant temperature is necessary to be maintained for a certain time after the heating is carried out to reach a preset temperature at each stage, and then the heating of a next stage is carried out; and the constant temperature is maintained for 1-3000 minutes. The heat-sensitive CTP processed by the heat stability processing method has favorable heat shock resistance performance; thesensitivity change is less than 3% after several days of transportation; the sensitivity change is less than 5% after one year of storage in a storage condition (undergoing the fluctuation of an indoor temperature from 5 DEG C to 35 DEG C) at a common room temperature; after the development processing is carried out, an image-text which is provided with net points and netting twines and completely meets a fine printing requirement can be obtained; and the pressrun of the image-text can be up to above thirty thousand.

Description

[technical field] [0001] The invention relates to the technical field of manufacturing heat-sensitive CTP plates for lithographic printing, in particular to a thermal stabilization treatment method for heat-sensitive CTP plates. [Background technique] [0002] In recent years, CTP technology has attracted great attention from people. CTP refers to computer-to-offline direct plate-making technology (Computer to Plate), from computer to printing machine on-machine direct plate-making technology (Computer to Press), from computer to direct plate-making technology (Computer to Press). A collection of printing technology (Computer to Paper / Print) and computer to direct proofing technology (Computer to Proof). It can be seen that CTP technology is actually a combination of digital prepress electronic processing technology, scanning output technology and CTP plate technology. The design of the present invention mainly relates to the manufacturing technology field of CTP plates nec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/09B41C1/00
Inventor 张本海生
Owner HUANGSHAN YINJIANG TECH
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