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Gravure platemaking roll and process for producing the same

A technology of gravure plate making and manufacturing method, which is applied in the directions of printing plate, printing plate preparation, plating of superimposed layers, etc., to achieve the effect of excellent printing durability and omitting the chrome plating process

Inactive Publication Date: 2008-07-23
THINK LABORATORY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the manufacture of gravure rolls (gravure cylinders), the technology of forming a silicon dioxide film on the copper plating layer using a perhydropolysilazane solution as a surface strengthening coating instead of the chromium layer has not yet been developed.

Method used

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  • Gravure platemaking roll and process for producing the same
  • Gravure platemaking roll and process for producing the same

Examples

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Embodiment 1

[0039] Using Boumelan Lain (a gravure roll manufacturing apparatus manufactured by THINK LABORATORY Co., Ltd.), the following copper plating layer formation and etching treatment were performed. First, install a gravure cylinder (aluminum hollow roll) with a circumference of 600 mm and a surface length of 1100 mm in the coating tank, and use an automatic sliding device based on a computer system to make the anode chamber close to the hollow roll until it reaches 20 mm, so that the coating solution is filled. Make the hollow roller fully submerged, at 18A / dm 2 , 6.0V to form a copper plating layer of 80μm. The plating time was 20 minutes, no pits or pits occurred on the plating surface, and a uniform copper plating layer was obtained. Using a 4H grinder (a grinder manufactured by THINK LABORATORY Co., Ltd.), it was ground for 12 minutes to make the surface of the copper plating layer a uniform polished surface.

[0040] A photosensitive film (thermal resist: TSER-2104E4) was ...

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Abstract

The present invention provides a novel gravure printing roll which includes a surface reinforcing coating layer having no toxicity and no possibility of causing pollution, and which has excellent printing resistance, and a manufacturing method thereof. The gravure printing roll includes: a plate base material; a copper plating layer formed on a surface of the plate base material and having multiple gravure cells formed thereon; and a silicon dioxide film which covers a surface of the copper plating layer, in which the silicon dioxide film is formed by using a perhydropolysilazane solution. The copper plating layer has a thickness of from 50 to 200 µm, the gravure cell has a depth of from 5 to 150 µm, and the silicon dioxide film has a thickness of from 0.1 to 5 µm, preferably 0.1 to 3 µm, and more preferably 0.1 to 1 µm.

Description

technical field [0001] The present invention relates to a gravure plate-making roll capable of having a surface-strengthening coating layer having sufficient strength without chrome plating and a method for producing the same, and more particularly to a gravure plate-making roll having a silica coating layer provided as a surface-strengthening coating layer instead of a chromium layer, and its method of manufacture. Background technique [0002] In gravure printing, minute recesses (intaglio units) are formed on the plate base material corresponding to the plate making information, a plate surface is made, ink is filled in the intaglio units, and the ink is transferred to the object to be printed. In a common gravure plate-making roll, a hollow roll made of metal such as aluminum or iron or a hollow roll made of CFRP (carbon fiber reinforced plastic) is provided with a copper-plated layer (plate material) for plate formation. This copper plating layer forms a plurality of m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41N1/16B05D1/02B05D1/26B05D3/04B05D7/24B41C1/02B41F13/11B41N1/06C23C28/00
CPCB41F13/11C25D5/48B41N1/06C23C28/345C25D3/38B41C1/02C23C28/322B41C1/04C23C26/00B41C1/05Y10T428/24851B05D1/02B05D1/26B05D3/04B41N1/16
Inventor 佐藤勉
Owner THINK LABORATORY CO LTD
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