KR101776162B1 - A method of pattern design for gravure roll prining and gravure roll prining using thereof - Google Patents

A method of pattern design for gravure roll prining and gravure roll prining using thereof Download PDF

Info

Publication number
KR101776162B1
KR101776162B1 KR1020150164773A KR20150164773A KR101776162B1 KR 101776162 B1 KR101776162 B1 KR 101776162B1 KR 1020150164773 A KR1020150164773 A KR 1020150164773A KR 20150164773 A KR20150164773 A KR 20150164773A KR 101776162 B1 KR101776162 B1 KR 101776162B1
Authority
KR
South Korea
Prior art keywords
halftone dot
pattern
halftone
designing
roll
Prior art date
Application number
KR1020150164773A
Other languages
Korean (ko)
Other versions
KR20170077866A (en
Inventor
김태완
정도용
강동우
Original Assignee
김태완
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김태완 filed Critical 김태완
Priority to KR1020150164773A priority Critical patent/KR101776162B1/en
Publication of KR20170077866A publication Critical patent/KR20170077866A/en
Application granted granted Critical
Publication of KR101776162B1 publication Critical patent/KR101776162B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/02—Engraving; Heads therefor
    • B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
    • B41C1/045—Mechanical engraving heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/02—Engraving; Heads therefor
    • B41C1/04—Engraving; Heads therefor using heads controlled by an electric information signal
    • B41C1/05—Heat-generating engraving heads, e.g. laser beam, electron beam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/10—Intaglio printing ; Gravure printing

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Printing Methods (AREA)

Abstract

The present invention relates to a print pattern design method of a gravure printing roll, comprising: a pattern format changing step of changing a format of a pattern drawing to an image file; And a halftone dot designing step of designing halftone dots forming a pattern on the image by loading the image file whose format has been changed on a graphic program, thereby controlling the smearing and non-printing area of the print, The present invention relates to a printing pattern design method of a gravure printing roll using a vector printing method and a gravure printing roll manufactured by the method, in order to improve print resolution, which is advantageous in improving printing quality by suppressing a staircase phenomenon.

Description

[0001] The present invention relates to a printing pattern design method for a gravure printing roll using a vector method for improving printing resolution, and a gravure printing roll produced thereby. [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing pattern design method for a gravure printing roll using a vector method for improving printing resolution in a printing electronic field such as a multilayer ceramic capacitor, And a gravure printing roll produced thereby.

In general, a process for forming a conductive paste film as an internal electrode on a ceramic green sheet is performed in order to produce a multilayer ceramic electronic device such as a multilayer ceramic capacitor. The internal electrode provided by such conductive paste film has high pattern accuracy You must have it. In order to have such a high precision of pattern, gravure printing using electronic ink has recently been developed as a method of printed electronics.

Such gravure printing is used for various electronic components in addition to such multilayer ceramic electronic parts. In such gravure printing, a gravure printing machine as shown in Fig. 1 is used. This is composed of a gravure roll 10 and a pressing roll 20 for pressing the sheet 1 to be printed on the gravure roll 10.

The gravure roll 10 and the pressing roll 20 are rotated and the sheet 1 is fed to the pattern 12 formed on the circumferential surface of the gravure roll 10, The ink is printed on the sheet 1 while the ink 32 of the ink tray 30 provided in the pattern 12 is rotated while being contained in the pattern 12. [

On the other hand, the gravure roll 10 is immersed in the electronic ink 32 contained in the ink tray 30 while rotating, and the electronic ink 32 is applied to the plurality of patterns 12 formed on the circumferential surface of the gravure roll 10 , Particularly the extra electronic ink 32 on the circumferential surface of the gravure roll 10 is scraped off by the doctor blade 40.

In this gravure printing method, the printing quality depends on the accuracy of the pattern 12 of the gravure roll 10, and the pattern 12 of the gravure roll 10 is used to print the pattern pattern of the gravure roll 10, And the surface of the gravure roll 10 is exposed to light using a laser exposing machine and then subjected to an etching process to form a pattern in a semi-processed state. In order to prevent corrosion, chrome plating So that a plurality of patterns 12 are formed on the outer circumferential surface of the gravure roll 10.

However, the laser exposure apparatus is provided with a control board having an image processor called a Rip (Raster Image Process) to convert point or vector files into images and output the images. Thus, the laser exposure apparatus induces the surface exposure of the gravure roll .

However, in the case of directly outputting such CAD data, the pattern is outputted from the rib to the screen. As shown in FIG. 2, the end portion 13 of the pattern 12, And the plurality of halftone dots 12a constituting the pattern 12 are not suitable for electronic ink having a high viscosity because the size of the halftone dot 12a is not constantly output.

Particularly, since metallic inks such as electronic inks are very fine in printing and small errors are not allowed, a wall 12b for dividing the intervals 12a and halftone dots 12a must be realized. However, 4, the size and shape of the halftone dots 12a are unstable and the thickness of the wall 12b is also unstable according to the conventional screen selection and output method, which is very disadvantageous to the electronic ink.

In the case of printing with the electronic ink using the gravure roll 10 formed with the pattern 12 by the rip screen method as described above, the surface of the pattern is formed as shown in Fig. 5, Is not uniform, the conductivity is lowered, and the current also flows unstably, thereby causing a problem of deteriorating the quality of electronic components manufactured later.

JP 11020116 A

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a gravure printing method capable of forming a pattern of a gravure printing roll having a structure suitable for electronic ink by freely designing halftone dots constituting a pattern formed on the outer circumferential surface of a gravure roll A method of designing a print pattern of a gravure printing roll using a vector method, and a gravure printing roll produced thereby.

According to another aspect of the present invention, there is provided a method of designing a print pattern of a gravure printing roll using a vector method for improving print resolution according to the present invention includes: a pattern format changing step of changing a format of a pattern drawing to an image file; And a halftone designing step of designing halftone dots forming a pattern on the image by a vector image method by loading the image file with the format changed on a graphic program.

In this case, the halftone dot designing step may include: a first halftone designing step of designing a border area of the pattern; And a second halftone designing step of designing a border inner area of the pattern, wherein the first halftone dot and the second halftone dot are different in shape and size from each other.

As an example, the first halftone dot and the second halftone dot have mutually different arrangement angles.

As an example, the polygonal structure of the first halftone dot and the polygonal structure of the second halftone dot are different from each other in a polygonal structure.

As an example, the first halftone dot is configured as an extension structure of the second halftone dot.

The first halftone dot and the second halftone dot are formed between the first halftone dot and the second halftone dot.

In this case, the third halftone dot is an expanded or reduced form of the second halftone dot.

In addition, the present invention is characterized by including a gravure printing roll manufactured through a method of designing a print pattern of a gravure printing roll using a vector method in order to improve the printing resolution of the present invention.

As described above, in the method of designing a print pattern of a gravure printing roll according to the present invention, when designing a halftone dot having a contour line of a pattern, it is possible to freely design a halftone dot area (contour line) It is possible to control the blurred and unprinted area of the printed matter in the operation and also to suppress the staircase phenomenon to the outline of the printed matter to improve the print quality.

FIG. 1 is a conceptual diagram illustrating a general gravure printing process.
Fig. 2 is an enlarged view of a part of the outer surface of a general gravure printing roll
Fig. 3 is an enlarged view of the pattern of Fig. 2
Fig. 4 is an enlarged view of another example of the pattern of Fig. 2
5 is an enlarged view of a printing surface due to general gravure printing;
6 is a view showing a post-design laser exposure state in a bitmap manner;
Fig. 7 is a view showing a design-after-design laser exposure state by a vector method
8 is a view schematically showing a print pattern designing method of a gravure printing roll according to the present invention
9 is a view showing one embodiment of a halftone dot design method in the design method of the present invention
10 is an enlarged view of the pattern image file according to the first embodiment designed by the print pattern designing method of the gravure printing roll according to the present invention
11 is an enlarged view of the pattern image file according to the second embodiment designed by the print pattern designing method of the gravure printing roll according to the present invention
12 is an enlarged view of the pattern image file according to the third embodiment designed by the print pattern design method of the gravure printing roll according to the present invention
13 is an enlarged view of the pattern image file according to the fourth embodiment designed by the print pattern designing method of the gravure printing roll according to the present invention
14 is a view showing a print of a printing roll designed by a print pattern designing method of a gravure printing roll according to the present invention

In describing the present invention, terms and words used in the present specification and claims are to be construed in accordance with the principles of the present invention, on the basis that the inventor can properly define the concept of a term in order to best explain his invention It should be construed as meaning and concept consistent with the technical idea of.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a conceptual diagram illustrating a general gravure printing process, FIG. 2 is an enlarged view of a part of an outer surface of a general gravure printing roll, and FIG. 3 is an enlarged view of the pattern of FIG. Fig. 4 is an enlarged view of another example of the pattern of Fig. 2, Fig. 5 is an enlarged view of a printing surface due to general gravure printing, Fig. Fig. FIG. 8 is a schematic view showing a print pattern designing method of a gravure printing roll according to the present invention, and FIG. 9 is a schematic view showing the design method of the present invention Fig. 8 is a diagram showing an embodiment of a halftone dot design method. 10 is an enlarged view of a pattern image file according to a first embodiment designed by a print pattern designing method of a gravure printing roll according to the present invention, Fig. 12 is an enlarged view of a pattern image file according to a third embodiment designed by a print pattern designing method of a gravure printing roll according to the present invention . 13 is an enlarged view of a pattern image file according to a fourth embodiment designed by a print pattern designing method of a gravure printing roll according to the present invention, Fig. 3 is a view showing a print of a printing roll designed by the present invention.

The print pattern designing method of the gravure printing roll according to the present invention is characterized in that it comprises a pattern format changing step (S10) and a halftone designing step (S20) as shown in FIG.

First, in the pattern format changing step (S10), a dwg file or the like (CAD program) received from a purchaser is changed to a format of an image file by using a drawing program.

Then, in the halftone dot design step S20, the image file having the changed format is loaded on a graphic program including an illustrator program, and the halftone dots constituting the pattern on the image are designed in a vector image format, A print pattern design of a gravure printing roll with improved printing quality can be performed.

That is, since the bitmap method is a method of designing a pattern as a set of divided regions, such as a certain square, as shown in FIG. 6, as shown in FIG. 6, there is a disadvantage that the pattern is imbalanced when the pattern is implemented on a gravure roll, .

On the other hand, as shown in FIG. 7, the vector method is designed to form a pattern by designing a halftone dot that can secure the resolution and the coating amount inside the outline after securing the resolution by forming the outline as a line, .

Meanwhile, the halftone designing step S20 includes a first halftone designing step S21 and a second halftone designing step S22 as shown in FIG.

The first halftone designing step S21 is to design a border area of the pattern, and the second halftone designing step S22 is to design an inner border area of the pattern. At this time, And the second halftone dot 210, which is an inner edge of the pattern, are different in shape and size from each other.

The first halftone dot 220 designed in the edge area is designed in various shapes and sizes in comparison with the second halftone dot 210 arranged in a uniform shape as described above, thereby smoothly designing the outline in the design of diagonal lines, circles, curves, It is possible to improve the printability because the step phenomenon does not appear even if it is enlarged.

This is because the halftone dot (cell) of the edge area and the halftone dot area (cell) of the edge area are designed to have the same structure as shown in FIG. 4 and the halftone area halftone dot is formed by cutting the halftone dot along the contour line. It is possible to give differentiation.

As shown in FIG. 10, the first halftone dot 220 and the second halftone dot 210 may be arranged at different angles. That is, the first halftone dot 220 may have a uniform shape The first halftone dot 220 can be designed in various forms in comparison with the second halftone dot 210 as shown in FIG. 3. As shown in the figure, the first halftone dot 220 corresponding to the inner circumferential contour line of the circle has a radial It is possible to suppress the staircase phenomenon in the border area in the circular pattern representation. In particular, when the circle, the curved surface or the like is expressed, a smooth outline can be realized, so that the print quality can be improved.

11, the polygonal structure of the first halftone dot 220 and the polygonal structure of the second halftone dot 210 may be formed in different polygonal structures, as shown in FIG. 11, Similar to the first embodiment, the second halftone dots 210 are arranged in a uniform polygonal shape. In the case of the first halftone dot 220 as the edge area, the second halftone dots 210 are designed to have different polygonal structures to improve the leveling of the print pattern. .

According to the print pattern designing method of the present invention, the first halftone dot 220 and the second halftone dot 210 may have various polygonal structures such as a quadrangle and a hexagon. For example, as shown in FIG. 210 are uniformly arranged in a hexagonal shape and the first halftone dots 220 in the outline border area are arranged to be densely arranged in a smaller size than the second halftone dot 210, It can be improved.

12 illustrates a third embodiment of the first halftone dot 220 according to the present invention. The first halftone dot 220 according to the present embodiment is configured to have an extended structure of the second halftone dot 210 .

In the case of the first halftone dot 220 representing a contour line as compared with the second halftone dot 210 having a uniform shape in a hexagonal structure as shown in the figure, one end of the hexagonal structure having a right and left sharp edges is transformed into a pentagonal structure It is possible to flexibly cope with the size of the pattern and to clearly express the contour line, thereby improving the print quality.

A third halftone dot 230 may be formed between the first halftone dot 220 and the second halftone dot 210. The third halftone dot 230 may include a first halftone dot 220, ) And other shapes and sizes.

As shown in FIG. 13, the third halftone dot 230 has a second halftone dot 210 uniformly arranged in an inner region of the frame, a second halftone dot 210 having a different shape and size from the second halftone dot 210, The first halftone dot 220 and the second halftone dot 210 are spaced apart from each other at equal intervals (i.e., the first halftone dot 220 and the second halftone dot 210) So that it is possible to improve the print quality as in the above-described embodiments.

The third halftone dot 230 is also applied to FIGS. 10 and 11. In FIG. 10, a third halftone dot 210 is formed between a second halftone dot 210 in the form of a rhombus and a first halftone dot 220 in a rectangular shape, 230 are formed in an expanded or contracted form of the second halftone dot 210 so that a clearance between the first halftone dot 220 and the second halftone dot 210 is formed.

13, the third halftone dot 230 has a shape corresponding to the interval between the second halftone dot 210 having a hexagonal shape and the first halftone dot 220 having a smaller size than that of the second halftone dot 210 5-shaped and trapezoidal shapes, thereby improving the printability.

When the pattern image file having the pattern design process finished is output, the pattern image file as the laser exposing device operates on the screen is output through the lip to expose the outer circumferential surface of the gravure roll.

Then, chromium plating is formed so as to prevent surface erosion of the gravure roll through chromium plating when a pattern is formed in a semi-processed state after etching (etching) for pattern formation after completion of exposure using a laser exposure machine.

At this time, a copper thin plate attached to the surface of the gravure roll is used, and it is natural that a pattern is formed by etching the surface of the copper thin plate.

The gravure printing roll manufactured through such a process can freely design a pattern, thereby controlling the interval between the halftone dots and the halftone dots to improve the leveling as shown in FIG. 14 and to prevent the ink from blotting or non- .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

220: first halftone dot 210: second halftone dot
230: Third halftone dot

Claims (8)

A pattern format changing step of changing a format of a pattern drawing to an image file; And a halftone dot designing step of designing halftone dots that form a pattern on an image by loading the image file with the format changed on a graphics program,
The halftone designing step includes a first halftone designing step of designing a border area of the pattern; And a second halftone designing step of designing a border inner area of the pattern, wherein the first halftone dot and the second halftone dot have different shapes and sizes,
The polygonal structure of the first halftone dot and the polygonal structure of the second halftone dot have different polygonal structures,
A third halftone dot of a different shape and size from the first halftone dot and the second halftone dot are formed between the first halftone dot and the second halftone dot,
Wherein the second halftone dot is continuously and repeatedly arranged in a rhombic shape while maintaining the same gap,
Wherein the first halftone dot is continuously arranged in a state in which square shapes are maintained at the same gap,
Wherein the third halftone dot is configured such that a pentagon and a trapezoidal shape are rotationally disposed between the first halftone dot and the second halftone dot to maintain the same gap between the first halftone dot, the second halftone dot and the third halftone dot. A method of designing a print pattern of a gravure print roll using a vector method for improving print resolution.
delete delete delete delete delete delete A gravure printing roll produced by a printing pattern design method of a gravure printing roll using a vector method to improve the printing resolution of claim 1.

KR1020150164773A 2015-11-24 2015-11-24 A method of pattern design for gravure roll prining and gravure roll prining using thereof KR101776162B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150164773A KR101776162B1 (en) 2015-11-24 2015-11-24 A method of pattern design for gravure roll prining and gravure roll prining using thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150164773A KR101776162B1 (en) 2015-11-24 2015-11-24 A method of pattern design for gravure roll prining and gravure roll prining using thereof

Publications (2)

Publication Number Publication Date
KR20170077866A KR20170077866A (en) 2017-07-07
KR101776162B1 true KR101776162B1 (en) 2017-09-20

Family

ID=59353425

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150164773A KR101776162B1 (en) 2015-11-24 2015-11-24 A method of pattern design for gravure roll prining and gravure roll prining using thereof

Country Status (1)

Country Link
KR (1) KR101776162B1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101090213B1 (en) * 2009-11-25 2011-12-07 김태완 Engraving And Dot Design Method To Improve Printing Resolution of Gravure Roll For Printed Electronics And Printed Matter Using It

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101090213B1 (en) * 2009-11-25 2011-12-07 김태완 Engraving And Dot Design Method To Improve Printing Resolution of Gravure Roll For Printed Electronics And Printed Matter Using It

Also Published As

Publication number Publication date
KR20170077866A (en) 2017-07-07

Similar Documents

Publication Publication Date Title
JP7471268B2 (en) How to make flexographic printing more smooth
RU2183558C2 (en) Stamp manufacture method
RU2308379C2 (en) Engraved plate making method
JP5497525B2 (en) Letterpress making apparatus, system, method and program for printing
CN104608471B (en) A kind of gravure printing roller and its manufacture method
US9375910B2 (en) Forming a flexographic plate
US20150107473A1 (en) Gravure printing plate and manufacturing method thereof, gravure printing machine, and manufacturing method for laminated ceramic electronic component
CN109228611A (en) A kind of adjustable gravure pillow network structure design method
JP2005238812A (en) Method for directly engraving cell on surface of impression cylinder restricted to use in gravure printing for retaining printing ink
KR101776162B1 (en) A method of pattern design for gravure roll prining and gravure roll prining using thereof
US11825056B2 (en) System and method for obtaining a uniform ink layer
US20090262179A1 (en) Method for reducing the area coverage of a printing plate
KR100976359B1 (en) pattern design method for gravure print
WO2021132527A1 (en) Gravure printing plate
US11446923B2 (en) Systems and methods for improved flexographic printing with reduced mottling and increased highlight stability
KR20200120187A (en) Gravure printing method
KR101090213B1 (en) Engraving And Dot Design Method To Improve Printing Resolution of Gravure Roll For Printed Electronics And Printed Matter Using It
CN114845882B (en) Gravure printing plate
US20030038976A1 (en) Half-tone screen printing process
EP1367812B1 (en) Method and apparatus for eliminating seams in screened image data for repetitive printing
KR20190019533A (en) Gravure offset roll for printing electronic with fine pattern and manufacturing method
JP2509117B2 (en) High-definition image plate making method by laser exposure method
KR101401398B1 (en) Method for printing electronic circuit using dual mask
US20020148371A1 (en) Method for manufacturing a printing forme, as well as printing method using a printing forme thus manufactured
JPS6259093A (en) Printing plate, printing method and plate-making device

Legal Events

Date Code Title Description
A201 Request for examination
N231 Notification of change of applicant
E902 Notification of reason for refusal
AMND Amendment
E601 Decision to refuse application
AMND Amendment
X701 Decision to grant (after re-examination)
N231 Notification of change of applicant
GRNT Written decision to grant