Printing plate materials and preparing method thereof

A printing plate and plate technology, which is applied in the field of printing plate and plate material and its preparation, can solve the problems of environmental pollution of electroplating chromium and insufficient hydrophilicity of electroplating chromium layer, so as to ensure occupational safety and health, save consumption, and strengthen locks. The effect of water ability

Inactive Publication Date: 2014-06-25
BEIJING BANKNOTE CURRENCY DESIGNING & PLATING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] On the basis of solving the environmental pollution problem of electroplating chromium in the traditional plate-making process, the techni...

Method used

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  • Printing plate materials and preparing method thereof
  • Printing plate materials and preparing method thereof
  • Printing plate materials and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This embodiment provides a printing plate material and its preparation method, such as figure 1 As shown, the printing plate material includes a stacked lipophilic layer and a hydrophilic layer, the lipophilic layer is a copper layer 1 and the hydrophilic layer is a chromium layer 2 with a surface roughness of 0.8 μm, and the chromium layer 2 has a thickness of 3.0 μm.

[0044] The copper layer 1 in this embodiment is a cold-rolled calendered brass layer with a thickness of 0.5 mm; as another embodiment of the present invention, the copper layer 1 can also be a cold-rolled calendered copper layer with a thickness of 0.4-0.5 mm , can realize the purpose of the present invention, and belong to the protection scope of the present invention.

[0045] The specific preparation method comprises the following steps:

[0046]S1. Use the ball milling process to roughen the surface of the copper layer 1, specifically: adjust the speed of the ball mill to 120 revolutions per minu...

Embodiment 2

[0053] This embodiment provides a printing plate material and its preparation method, such as figure 1 As shown, the printing plate material includes a stacked lipophilic layer and a hydrophilic layer, the lipophilic layer is a copper layer 1 and the hydrophilic layer is a chromium layer 2 with a surface roughness of 0.5 μm, and the chromium layer 2 has a thickness of 5.0 μm.

[0054] The copper layer 1 in this embodiment is a cold-rolled calendered brass layer with a thickness of 0.4mm; as another embodiment of the present invention, the copper layer 1 can also be a cold-rolled calendered copper layer with a thickness of 0.4-0.5mm , can realize the purpose of the present invention, and belong to the protection scope of the present invention.

[0055] The specific preparation method comprises the following steps:

[0056] S1. Use the ball milling process to roughen the surface of the copper layer 1, specifically: adjust the speed of the ball mill to 120 revolutions per minut...

Embodiment 3

[0063] This embodiment provides a printing plate material and its preparation method, such as figure 1 As shown, the printing plate material includes a stacked lipophilic layer and a hydrophilic layer, the lipophilic layer is a copper layer 1 and the hydrophilic layer is a chromium layer 2 with a surface roughness of 0.6 μm, and the chromium layer 2 has a thickness of 4.0 μm.

[0064] The copper layer 1 in this embodiment is a cold-rolled red copper layer with a thickness of 0.45mm.

[0065] The specific preparation method comprises the following steps:

[0066] S1. Use the ball milling process to roughen the surface of the copper layer 1, specifically: adjust the speed of the ball mill to 120 revolutions per minute, select 400 mesh and 600 mesh corundum for the rough grinding and fine grinding respectively, and the rough grinding and fine grinding process time respectively for 30 and 35 minutes, so that the surface roughness of the copper layer is 0.5 μm, and then place the...

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Abstract

The invention provides printing plate materials which comprise an oleophylic layer and a hydrophilic layer. The oleophylic layer and the hydrophilic layer are arranged in an overlapping mode. The oleophylic layer is a copper layer. The hydrophilic layer is a chromium layer with the surface roughness of 0.5 micron-0.8 micron. The static contact angle between the chromium layer and distilled water is 2 degreees-8 degrees. The super-hydrophilic property is given to the chromium layer. The water locking capacity of a printing plate non-image-test zone with the printing plate materials is effectively enhanced so that printing oil sprayed to the surface of the oleophylic layer cannot overflow all around, accordingly the effect of invalid printing ink consumption lowering is achieved, and printing quality is guaranteed. According to the preparing method of the printing plate materials, main pollution sources in the electrochromism plate manufacturing process are removed from sources, environment pollution is lowered, the occupational safety and the health of workers are guaranteed, positive social benefit is achieved, hydrophilic layer film forming speed is high, the automation degree is high, the labor cost in production is effectively lowered, environment pollutants cannot be generated during the plate manufacturing process, pollutant treating cost is saved, and obvious economical benefit is achieved.

Description

technical field [0001] The invention relates to the technical field of printing plate material manufacturing, in particular to a printing plate plate material and a preparation method thereof. Background technique [0002] The printing plate of the printing machine refers to the carrier for printing graphics and texts that transfers ink to the substrate. It is usually divided into four types: letterpress, gravure, lithographic and stencil. Among them, lithography means that the graphic part and the non-graphic part on the printing plate are basically on the same plane, the graphic part is made of lipophilic materials, and the non-graphic part is made of hydrophilic materials; when printing, according to the immiscibility of oil and water The principle is that the water supply device of the printing machine supplies water to the non-graphic part of the lithographic plate, and then the ink supply device of the printing machine supplies ink to the lithographic plate. Since the ...

Claims

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Application Information

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IPC IPC(8): B41N1/08B41N3/00B41C1/10
Inventor 李晓伟刘永江刘雪敬张临垣史晓雪
Owner BEIJING BANKNOTE CURRENCY DESIGNING & PLATING
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