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Post-processing method of concavo-convex etched plate with imitating glyphography effect

A technology of electric engraving and etching, which is applied in printing plate preparation, printing, etc., can solve the problems of high cost of electric engraving and unclear outline, and achieve the effects of low cost, improved production efficiency, and reduced production cost

Active Publication Date: 2011-01-26
JIANGSU DAREGLOBAL PRINTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the disadvantages of the prior art that the depth of the etched plate is consistent, the outline is not obvious, and the cost of the electric engraving plate is high, the present invention proposes a corroded plate with a concave-convex imitation electric engraving effect and its processing method, which has the advantages of low cost and convenient processing The advantages

Method used

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  • Post-processing method of concavo-convex etched plate with imitating glyphography effect
  • Post-processing method of concavo-convex etched plate with imitating glyphography effect
  • Post-processing method of concavo-convex etched plate with imitating glyphography effect

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Experimental program
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Effect test

Embodiment 1

[0015] In the post-processing concave-convex process, after the proofreading is completed and the positive film is finished, the surface of the etched negative plate is covered with a pressure-resistant tape. The number of covering layers (pressure) can be adjusted according to actual production needs. The processed Negative version such as figure 1 shown. Then use 1500-2000 mesh fine sandpaper to slowly grind along the edge of the graphic and text on the edge of the positive version of the graphic. After grinding, the outline of the graphic and text edge is similar to that of the electro-engraving positive version, smooth, round, and free of defects. After the negative plate and the positive plate are pressed together, the concave-convex appearance effect similar to that of the electric engraving plate is produced on the product. The effect comparison before and after printing can be seen figure 2 and image 3 , it can be clearly seen that the printing effect of the etch...

Embodiment 2

[0017] A post-processing method of a corroded plate with a concave-convex imitation electric engraving effect. The surface of the corroded negative plate prepared by a conventional method is covered with a pressure-resistant adhesive tape. When the depth of the negative plate is 0.4-1.2mm, use Cover 1-5 layers with pressure-resistant tape, and then polish the positive plate with 1500-2000 mesh fine sandpaper to make it smooth and round. The opening of the negative plate is inclined, and the angle of the inclined plane is 90-65 degrees. The pressure-resistant tape is a BOPP biaxially stretched polypropylene tape. The negative plate of the etched plate processed by this method is provided with 1-5 layers of pressure-resistant adhesive tape, the depth of the picture and text is 0.4-1.2mm, and the edge of the positive plate of the etched plate is smooth and round.

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Abstract

The invention discloses a concavo-convex etched plate with imitating glyphography effect and a processing method thereof. The surface of a negative plate of the concavo-convex etched plate is coated with adhesive tapes, the number of adhesive tape layers is determined by the effect needed by pictures and texts, the negative plate is coated with 1 to 5 layers of pressure-proof adhesive tapes when the widths of the pictures and the texts of the negative plate are between 0.4 mm and 1.2 mm, the margin of the negative plate forms a slop with an angle between 90 DEG and 65 DEG, and the pressure-proof adhesive tapes are BOPP two-direction stretching polypropylene adhesive tapes; then a positive plate is burnished by 1500-2000 meshes of fine sand paper, and the edge contour of the positive plateis smooth and mellow and is similar to that of a glyphographic positive plate. With the treatment of the negative plate and the positive plate, the concavo-convex heights of the negative plate and the positive plate are different, and the margins form slopes so as to generate the concavo-convex appearance effect which is similar to that of a glyphographic plate. The invention has low cost due to using the adhesive tapes and the fine sand paper, thereby saving the production cost and enhancing the production efficiency.

Description

technical field [0001] The invention relates to the field of post-printing processing, and mainly relates to post-processing embossing embossing plates for bronzing embossing machines. Background technique [0002] There are two kinds of plate materials in the post-processing concave-convex plate during use, corrosion concave-convex plate and electro-engraving concave-convex plate. The technical characteristics of the corrosion plate are that the plate material is corroded by the potion, the depth of the picture and text is consistent, the outline is not obvious, the layering is poor, and the plate mouth is rough. After the product has undergone its unevenness, the convex height on the surface is consistent and approximately horizontal. The electric engraving plate is currently the best plate-making process. The program is set by the computer, and the whole process is engraved by the electric engraving machine. It is close to the state of the graphic itself, especially whe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41C1/02
Inventor 左平华臧庆碧
Owner JIANGSU DAREGLOBAL PRINTING CO LTD