Method for simulating plate making by computer instead of band engraving

A computer and manual technology, which is applied in the copying of printing plates, the photo-engraving process of the pattern surface, and the printing of special varieties of printed matter, can solve the problems of prolonging the working cycle and reducing the working efficiency, so as to increase the difficulty and improve the anti-counterfeiting. effect, the effect of reducing the risk of error

Inactive Publication Date: 2003-05-07
BEIJING FOUNDER ELECTRONICS CO LTD +1
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned plate-making technology, there are the following disadvantages: First, the hand-engraved plate needs to use a copper plate material with a better texture, and the graphics and texts (mainly patterns) required by the user are carved out in layers with a carving knife by the hand-crafted skills of the engraver. Before that, the engraver could only use the blueprint in his mind, or the existing sketch manuscript, to carry out revision with a knife, which required high engraving technology for engraving, which undoubtedly lengthened the working cycle to a certain extent and reduced the work efficiency
If there is a little mistake, all previous efforts may be wasted
Secondly, the chemical etching method can only produce one level, and the dead angle of the edge cannot be made into a certain curvature like hand-carving to improve the embossing effect and prevent the paper from cracking.

Method used

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  • Method for simulating plate making by computer instead of band engraving
  • Method for simulating plate making by computer instead of band engraving
  • Method for simulating plate making by computer instead of band engraving

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings:

[0027] First input an original image, usually in Tif format, Figure 7 Is an example given.

[0028] From the previous description, there is also a set of vector lines with appropriate line spacing, for example Figure 8 . It can be given in the form of curve blending, that is, the top one and the bottom one are given first, and a certain number of intermediate lines are given between the two. They are gradient from the top one to the bottom one. The given number should take into account the spacing between the lines. If it is too small, black areas will appear if there is squeezing; if it is too large, the image information will not be well represented. The distance can be determined according to the gradation information of the image.

[0029] by Figure 7 with Figure 8 For printmaking, change the width of the line according to the gray value of the image where the line...

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Abstract

A method fo r preparing woodcut by computer to simulate manual carving features that a group of vector lines with different widthes is used to map the gray scales of traditional woodcut. Its advantage is high productivity.

Description

Technical field [0001] The invention belongs to the technical field of plate-making technology, and specifically relates to a computer-simulated manual engraving method. Background technique [0002] The existing plate-making process generally adopts the manual engraving and corrosion intaglio technology. The manual engraving and corrosion intaglio is the process technology of manually engraving the original graphic on the metal plate, and then corroding the intaglio with a chemical etching solution, and then printing. The process flow is as follows: [0003] Grinding, waxing, hooking, printing, rotten copper, revising. [0004] The above-mentioned plate-making technology has the following shortcomings: First, the hand-engraved plate needs to use copperplate materials with better texture, and the graphics (mainly patterns) required by the user are carved out in layers with a carving knife based on the manual skills of the engraver. Before this, the engraver could only revise the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41C3/00B44C1/16B44C1/22G03F3/00G06T11/40G09F3/02
Inventor 亓文法周海欣吴力耘
Owner BEIJING FOUNDER ELECTRONICS CO LTD
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