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Flexographic printing process

A flexographic printing and flexographic technology, applied in printing, printing devices, etc., can solve the problems of easy ink and transfer, and achieve the effects of improving printing durability, sufficient transfer volume, and improving ink transfer rate

Pending Publication Date: 2021-11-12
上海敏佳印刷制版有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a flexographic printing process for solving the problem of easy ink transfer in the flexographic printing process in the prior art

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0026] like figure 1 Shown, a kind of flexographic printing process comprises the steps:

[0027] Step 1. Put the substrate on the machine, and then put the water-based ink into the ink fountain of the printing machine;

[0028] Step 2, the ink fountain roller transfers the water-based ink in the ink fountain to the anilox roller, and the anilox roller transfers the water-based ink to the photosensitive resin plate, and the photosensitive resin plate is set on the printing plate cylinder;

[0029] Step 3. Under the action of the impression cylinder, the water-based ink on the plate cylinder is transferred to the surface of the substrate to obtain.

[0030] Wherein the composition of water-based ink is as shown in Table 1:,

[0031] Table 1

[0032] composition weight ratio / % Phthalocyanine blue 24.7 acrylic emulsion 50.0 water 50.0 ethyl styrene 2.0 Polyethylene and other waxy compounds 3.0 Organic defoamer 0.3

[0033] U...

Embodiment 2

[0046] like figure 1 Shown, a kind of flexographic printing process comprises the steps:

[0047] Step 1. Put the newsprint on the machine, and then put the water-based ink into the ink fountain of the printing machine;

[0048] Step 2, the ink fountain roller transfers the water-based ink in the ink fountain to the anilox roller, and the anilox roller transfers the water-based ink to the photosensitive resin plate, and the photosensitive resin plate is set on the printing plate cylinder;

[0049]Step 3. Under the action of the impression cylinder, the water-based ink on the plate cylinder is transferred to the surface of the substrate to obtain.

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Abstract

The invention relates to the technical field of printing processes, in particular to a flexographic printing process which comprises the steps that ink in an ink fountain is transferred to an anilox roller through an ink fountain roller, the ink is transferred to a flexographic plate through the anilox roller, and the flexographic plate is arranged on a plate cylinder; and under the action of an impression cylinder, the printing ink on the plate cylinder is transferred to the surface of a printing stock, and the flexographic printing process is finished. The problem that printing ink is easy to transfer in the flexographic printing process is solved. By controlling the pressure of the ink fountain roller, the situation that a flat ink layer cannot be formed when ink in the ink fountain is transferred to the flexographic plate is avoided; by controlling the difference value between the pressure of the ink fountain roller and the printing pressure of the anilox roller, the problem of ink displacement in the process of transferring the ink in the ink fountain to the flexographic plate is avoided; and finally, the printing pressure of the impression cylinder and the printing pressure of the anilox roller are set to be the same, ink is prevented from overflowing from the surface of the flexographic plate (printing plate), and therefore the printing resistance of the flexographic plate is improved.

Description

technical field [0001] The invention relates to the technical field of printing technology, in particular to a flexographic printing technology. Background technique [0002] In recent years, as people pay more and more attention to green environmental protection, the printing method at the expense of the environment is being replaced, and the flexographic printing method known as "environmentally friendly" has been further applied and promoted. With the improvement of printing technology At the same time, flexographic printing technology has also achieved considerable development. [0003] Although the quality of flexographic printing can be compared with that of lithographic printing, gravure printing, and screen printing in some respects, the production speed of flexographic printing still needs to be improved. In the use of flexographic printing technology, the thickness of the ink layer is difficult to control. Although the composition of the flexographic printing mach...

Claims

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Application Information

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IPC IPC(8): B41M1/04
CPCB41M1/04
Inventor 叶露兵
Owner 上海敏佳印刷制版有限公司
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