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Method for improving UV ink-jet printing efficiency and quality

An inkjet printing and high-efficiency technology, applied in the field of light curing, can solve the problems of heavy graininess, inability to achieve image effects, and difficult curing, etc., and achieve the effects of improved printing efficiency and quality, good surface curing, and clear patterns

Inactive Publication Date: 2019-05-07
LUCKY HUAGUANG GRAPHICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are two problems in the application: 1. The image is formed by ink droplets, and the pixels exist on the surface of the substrate in a hemispherical shape, with heavy graininess, high protrusions, and roughness, which cannot achieve the smooth image effect of traditional contact printing; 2. When printing with low ink volume, it is not easy to cure due to the inhibition effect of oxygen, which is more obvious when printing at high speed and using UV-LED light source

Method used

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  • Method for improving UV ink-jet printing efficiency and quality
  • Method for improving UV ink-jet printing efficiency and quality
  • Method for improving UV ink-jet printing efficiency and quality

Examples

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Embodiment 1

[0023] A method to improve the efficiency and quality of UV inkjet printing. After the UV inkjet unit, cover the surface of the printing pattern with a transparent film, then perform UV curing, and then peel off the transparent film to obtain a smooth printing pattern.

[0024] The light transmittance of the transparent film in the ultraviolet region is greater than 80%.

[0025] The light transmittance of the transparent film in the ultraviolet region is greater than 90%.

[0026] The transparent film is PET, PC, PP, PE or PVC.

[0027] The side of the transparent film covering the printing pattern is coated with a release agent, so that the transparent film and the UV inkjet ink are not easy to stick, and can be completely peeled off after the UV ink is cured, improving the peeling performance of the transparent film, so that the transparent film can be recycled. , that is, after covering, curing, and stripping procedures, it can be used again. The recycling of transparent...

Embodiment 2

[0032] A method to improve the efficiency and quality of UV inkjet printing. After the UV inkjet unit, cover the surface of the printing pattern with a transparent film, then perform UV curing, and then peel off the transparent film to obtain a smooth printing pattern. The light transmittance of the transparent film in the ultraviolet region is 82%, and the transparent film is PET.

Embodiment 3

[0034] A method to improve the efficiency and quality of UV inkjet printing. After the UV inkjet unit, cover the surface of the printing pattern with a transparent film, then perform UV curing, and then peel off the transparent film to obtain a smooth printing pattern. The light transmittance of the transparent film in the ultraviolet region is 85%. The transparent film is PC, and the side of the transparent film covering the printing pattern is coated with a release agent. In this way, the transparent film and the UV inkjet ink are not easy to adhere. It can be completely peeled off after curing, improving the peeling performance of transparent films.

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PUM

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Abstract

The invention discloses a method for improving UV ink-jet printing efficiency and quality. The method comprises the following steps that after a UV ink jet unit operates, a transparent thin film covers the surface of a jet printed pattern, then UV curing is performed, then the transparent thin film is stripped, and a smooth printed pattern is obtained. According to the method, after the UV ink jetunit operates, the transparent thin film covers the surface of the jet printed pattern, then UV curing is performed, then the transparent thin film is stripped, and the smooth printed pattern is obtained; and according to the provided method, the flat and smooth UV ink-jet printed pattern can be obtained, the surface is well cured, the pattern is clear, and the UV ink-jet printing efficiency andquality are improved.

Description

technical field [0001] The invention belongs to the field of photocuring technology, and in particular relates to a method for improving the efficiency and quality of UV inkjet printing. Background technique [0002] UV inkjet printing is currently recognized as an environmentally friendly printing method. It does not contain VOC and has the advantages of energy saving and high efficiency. UV inkjet printing is usually multi-color sequential printing, and then enters the UV light source area for one-time curing. However, there are two problems in the application: 1. The image is formed by ink droplets, and the pixels exist on the surface of the substrate in a hemispherical shape, with heavy graininess, high protrusions, and roughness, which cannot achieve the smooth image effect of traditional contact printing; 2. When printing with low ink volume, due to the inhibition effect of oxygen, it is not easy to cure, which is more obvious when printing at high speed and using UV-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F23/08B41F23/04
CPCB41M7/00B41M7/0081
Inventor 刘东元余志华赵睿陈瑾马小丽鲁超高英新
Owner LUCKY HUAGUANG GRAPHICS
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