Method for manufacturing thermal sensitive CTP plate

A manufacturing method and heat-sensitive technology, which are applied in the exposure device of photo-engraving process, photosensitive material for opto-mechanical equipment, and photosensitive material processing, etc. The problem is to overcome the printing dirt, excellent reduction and excellent wear resistance.

Inactive Publication Date: 2006-07-12
高丽生
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

To sum up, positive PS plates have poor ink-ink balance ability during the printing process, and are p

Method used

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Embodiment Construction

[0018] A method for manufacturing a heat-sensitive CTP plate, which uses an aluminum plate as the base plate, including aluminum or aluminum alloy plates. In addition to pure aluminum plates, alloys with aluminum as the main component and a small amount of other elements can be used, and can be added to aluminum alloys. The elements can be silicon, iron, manganese, copper, magnesium, chromium, zinc, molybdenum, nickel, titanium and so on.

[0019] The manufacture method of thermosensitive CTP plate comprises the steps:

[0020] First: surface treatment, remove the oily dirt on the surface of the base plate, first wash in alkaline solution (main components are sodium hydroxide, sodium gluconate), then wash with water, and then wash in acid solution (nitric acid, sulfuric acid), Finally washed with water to obtain off-white base plate.

[0021] Second: In the electrolytic cell with hydrochloric acid as the electrolyte and three graphite electrodes connected to three-phase alter...

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Abstract

The invention discloses a making method and printing method of temperature-sensitive CTP plate to adapt aluminum plate as base plate, which comprises the following steps: surface disposal, three-phase electrolytic roughening treatment, ash disposal, depolarizing disposal, base plate oxidizing disposal, base plate hole-packing disposal, hydrophilic layer coating, photosensitive layer coating, drying, shearing and packing. The method reaches the ink-and-wash balance of print plate as soon as possible and overcomes dirty phenomenon, which guarantees the high quality and long print time.

Description

technical field [0001] The invention relates to a method for manufacturing a thermosensitive CTP plate. Background technique [0002] Domestic lithographic printing generally uses positive PS plates, which use aluminum plates as substrates. During manufacturing, the surface of the substrates is firstly treated to remove oil and dirt, then roughened by single-phase electrolysis, and then oxidized to form an oxide film after descaling , and finally coat the photosensitive resin layer. When printing, it must go through plate assembly, phototypesetting, development, and fixation to generate negatives, and then make up and print before printing on the machine. This method adopts single-phase electrolysis to generate a single-reticulated structure of grains, which changes the depth of the pit with the thickness of the grains. If the grains are too coarse, the water retention will be insufficient and easy to get dirty; if the grains are too fine, the micropores will The photosens...

Claims

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Application Information

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IPC IPC(8): G03F7/004G03F7/09G03F7/20G03F7/32
Inventor 高丽生
Owner 高丽生
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