Laser etching process of a roller for anti-counterfeiting printing
A technology of laser etching and anti-counterfeiting printing, which is applied in printing, printing plate preparation, etc., to achieve the effect of increasing the difficulty of counterfeiting and low application cost
Active Publication Date: 2016-01-06
SHANGHAI YUNAN PLATE MAKING
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Problems solved by technology
[0002] At present, the rollers used for anti-counterfeiting printing generally adopt the way of screen dots to arrange engraving. The technical defects of this process are: for manuscripts with thin lines, such as the line thickness is 0.02mm, the engraving process needs to be 1250 line / inch, currently domestic and foreign laser machines cannot meet this requirement
Method used
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Embodiment
[0030] like figure 1 Shown, a kind of laser etching process of anti-counterfeit printing roller, comprises the following steps:
[0031] 1) Through the Adobe Illustrator software, the thin lines of the anti-counterfeit graphics are broken to form anti-counterfeit graphics with a dot structure that meets the process requirements;
[0032] 2) Apply a layer of anti-corrosion glue evenly on the surface of the roller through the glue hanging machine. The purpose of this glue is to protect the copper layer on the surface of the roller;
[0033] 3) Put the roller into the laser engraving machine, and the laser engraving machine controls the laser beam to engrave the required anti-counterfeiting graphic content on the adhesive layer, and the laser beam vaporizes the adhesive layer corresponding to the anti-counterfeiting graphic, not the graphic part The glue layer is still kept on the roller to protect the copper layer;
[0034] Among them, the main technical parameters of laser en...
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The invention relates to a laser etching technology of a roller for anti-counterfeit printing. The technology comprises the following steps: first, an anti-counterfeit image-text is processed through a drawing software to form an anti-counterfeit image-text with a network point structure and meeting technology demands; second, a surface of a roller is coated with glue; third, according to the anti-counterfeit image-text with a network point structure obtained from the first step, the glue layer of the roller surface is subjected to laser engraving, and the part, corresponding to the anti-counterfeit image-text, of the glue layer is vaporized; fourth, the roller after laser engraving is subjected to corrosion processing, and the surface part which is not coated with the glue layer is corroded and the anti-counterfeit image-text is exposed; fifth, the glue layer of the surface of the roller is cleaned; sixth, a protective layer is plated on the surface of the roller. Compared to the prior art, the laser etching technology is simple and practical, and has advantages of low cost, good printing effects and the like.
Description
technical field [0001] The invention relates to a laser etching process, in particular to a laser etching process of a roller for anti-counterfeiting printing. Background technique [0002] At present, the rollers used for anti-counterfeiting printing generally adopt the way of screen dots to arrange engraving. The technical defects of this process are: for manuscripts with thin lines, such as the line thickness is 0.02mm, the engraving process needs to be 1250 line / inch, currently domestic and foreign laser machines cannot meet this requirement. Contents of the invention [0003] The object of the present invention is to provide a roller laser etching process with low cost, simple and practical, and good printing effect in order to overcome the above-mentioned defects in the prior art. [0004] The purpose of the present invention can be achieved through the following technical solutions: [0005] A laser etching process for a roller for anti-counterfeiting printing, co...
Claims
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IPC IPC(8): B41C1/05
Inventor 景俊岭
Owner SHANGHAI YUNAN PLATE MAKING